Download:
pdf |
pdfRural Utilities Service, USDA
§ 1728.30
PART 1728—ELECTRIC STANDARDS
AND SPECIFICATIONS FOR MATERIALS AND CONSTRUCTION
Sec.
1728.10 General purpose and scope.
1728.20 Establishment of standards and
specifications.
1728.30 Inclusion of an item for listing or
technical acceptance.
1728.40 Procedure for submission of a proposal.
1728.50 Removal of an item from listing or
technical acceptance.
1728.60 List of materials and equipment.
1728.70 Procurement of materials.
1728.97 Incorporation by reference of electric standards and specifications.
1728.98 Electric standards and specifications.
1728.201 RUS Bulletin 1728H-701, RUS Specification for Wood Crossarms (Solid and
Laminated), Transmission Timbers and
Pole Keys.
1728.202 RUS Bulletin 1728H-702, RUS Specification for Quality Control and Inspection of Timber Products.
1728.203 [Reserved]
1728.204 Electric standards and specifications for materials and construction.
AUTHORITY: 7 U.S.C. 901 et seq., 1921 et seq.,
6941 et seq.
§ 1728.10 General purpose and scope.
(a) The requirements of this part are
based on contractual provisions between RUS and the organizations
which receive financial assistance from
RUS.
(b) RUS will establish certain specifications and standards for materials,
equipment, and construction units that
will be acceptable for RUS financial assistance for the electric program. Materials and equipment purchased by the
electric borrowers or accepted as contractor-furnished material must conform to RUS standards and specifications where they have been established
and, if included in RUS Bulletin 43–5,
‘‘List of Materials Acceptable for Use
on Systems of RUS Electrification Borrowers’’ (List of Materials), must be selected from that list or must have received technical acceptance from RUS.
RUS, through its Technical Standards
Committees, will evaluate certain materials, equipment and construction
units, and will determine acceptance.
[50 FR 47710, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.20 Establishment of standards
and specifications.
(a) National and other standards. RUS
will utilize standards of national standardizing groups, such as the American
National Standards Institute (ANSI),
American Wood Preservers’ Association (AWPA), the various national engineering societies and the National
Electrical Safety Code (NESC), to the
greatest extent practical. When there
are no national standards or when RUS
determines that the existing national
standards are not adequate for rural
electric systems, RUS will prepare
standards for material and equipment
to be used on systems of electric borrowers. RUS standards and specifications will be codified or listed in
§ 1728.97, Incorporation by Reference of
Electric Standards and Specifications.
RUS will also prepare specifications for
materials and equipment when it determines that such specifications will result in reduced costs, improved materials and equipment, or in the more effective use of engineering services.
(b) Deviations from Standards. No
member of the RUS staff will be permitted to authorize deviations from
the standard specifications, or to establish or change the technical standards, or to authorize the use of items
that have not received acceptance by
the Technical Standards Committees,
except as provided for under § 1728.70, or
by authorization and/or delegation of
authority by the Administrator of
RUS.
(c) Category of Items. Items appearing
in the List of Materials are listed by
categories of generic items which are
used in RUS construction standards incorporated by reference in § 1728.97.
RUS will establish and define these
categories and will establish all criteria for acceptability within these
categories.
[50 FR 47710, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990, as amended at 55 FR
53487, Dec. 31, 1990]
§ 1728.30 Inclusion of an item for listing or technical acceptance.
(a) Scope. RUS, through its Technical
Standards Committees ‘‘A’’ and ‘‘B’’
will determine the acceptability of certain standards, standard specifications,
277
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00287
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.30
7 CFR Ch. XVII (1–1–14 Edition)
standard drawings, and items of materials and equipment to be used in
transmission, distribution and general
plant (excluding office equipment,
tools, and work equipment, and consumer-owned electric wiring facilities).
(b) Addresses of Committees. The address of Technical Standards Committee ‘‘A’’ is: Chairman, Technical
Standards Committee ‘‘A’’ (Electric),
Rural Utilities Service, U.S. Department of Agriculture, Washington, DC
20250–1500. The address of Technical
Standards Committee ‘‘B’’ is: Chairman, Technical Standards Committee
‘‘B’’ (Electric), Rural Utilities Service,
U.S. Department of Agriculture, Washington, DC 20250–1500.
(c) Review by Technical Standards
Committee ‘‘A’’. All proposals for listing
a product in the List of Materials must
be addressed to Technical Standards
Committee ‘‘A.’’ This committee will
consider all proposals made by sponsors of specifications, drawings, materials, or equipment in categories for
which RUS has established criteria for
acceptability. A sponsor may be a manufacturer, supplier, contractor or any
other person or organization which has
made an application for listing or has
requested an action by the committee.
Committee ‘‘A’’ will consider all relevant information presented in determining whether an item should be accepted by Technical Standards Committee ‘‘A.’’ Formal rules of evidence
and procedure shall not apply to proceedings before this committee.
(d) Action by Technical Standards Committee ‘‘A’’. (1) Committee ‘‘A’’ may
take one of the following actions:
(i) Accept an item for listing without
conditions (domestic items only),
(ii) Reject an item (domestic or nondomestic), 1
(iii) Accept an item for listing with
conditions (domestic items only),
(iv) Table an item for a time period
sufficient to allow the sponsor to be
notified and furnish additional information (domestic or nondomestic),
(v) Grant technical acceptance with
or without conditions for a period of
1 Nondomestic items are items which do
not qualify as domestic products pursuant to
RUS ‘‘Buy American’’ requirement.
one year from the date of notification
by RUS (nondomestic items only).
(2) All committee decisions regarding
the actions listed above must be unanimous. If the vote is not unanimous, the
item shall be referred to Technical
Standards Committee ‘‘B.’’ Written notice of Technical Standards Committee
‘‘A’s’’ decision, stating the basis for
the decision, will be provided to the
sponsor.
(3) Items accepted without conditions
by the Technical Standards Committees will be considered to be accepted
on a general basis. No restrictions as to
quantity or application will be placed
on items which have received general
acceptance. Items accepted subject to
certain conditions, such as limited use
to gain service experience, or limited
use appropriate to certain areas and
conditions, will be considered to be accepted on a conditional basis. The conditions will be cited as a part of the
listing provided for in § 1728.60, or as
part of the technical acceptance for
nondomestic items.
(e) Appeal to Technical Standards Committee ‘‘B’’. A sponsor may request a review of an adverse decision by Technical Standards Committee ‘‘A’’ within
ten (10) days of notification of such decision by submitting a letter requesting such review to Technical Standards
Committee ‘‘B’’ (Electric).
(f) Action by Technical Standards Committee ‘‘B’’. Committee ‘‘B’’ may take
any of the actions listed for Committee
‘‘A’’ in § 1728.30(d). However, for a Committee ‘‘B’’ action to be effective it
must be by majority vote. Failure to
obtain a majority on one of the proposed actions shall mean that the product will not be listed or accepted. Committee ‘‘B’s’’ determination shall be
based on the record developed before
Committee ‘‘A’’ and such additional information as Committee ‘‘B’’ may request. Formal rules of procedure and
evidence shall not apply to proceedings
before Committee ‘‘B.’’ Written notice
of Committee ‘‘B’s’’ decision, stating
the basis of the decision, will be provided to the sponsor.
(g) Appeal to the Administrator. In the
event of an adverse decision by Committee ‘‘B,’’ the sponsor may, within
ten (10) days of notification of such decision, request a review of this decision
278
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00288
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.50
by submitting a letter to the Administrator requesting such a review.
(h) Change in Design. RUS acceptance
of an item will be conditioned on the
understanding that no design changes
(material or dimensions) affecting the
quality, strength, or electrical characteristics of the item shall be made
without prior concurrence of Technical
Standards Committee ‘‘A.’’
[50 FR 47711, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.40 Procedure for submission of
a proposal.
(a) Written Request. Consideration of
an item of material or equipment will
be obtained by the sponsor through the
submission of a written request in an
original and five copies addressed to
the Chairman, Technical Standards
Committee ‘‘A’’ (Electric). The letter
must include the catalog number or
other identifying number or code as
well as a description of the item. In the
event that an item being submitted is
also intended for consideration by
Technical Standards Committee ‘‘A’’
(Telephone), a separate request must
be made to the telephone committee.
(See part 1755 of this chapter).
(b) Technical and Performance Data.
Six copies of the specification of manufacture, drawings and test data must
be submitted to the committee. Six
copies of the performance history shall
also be submitted unless RUS determines that such performance history is
not reasonably available.
(c) Sample. One sample of the item
must be submitted to the Chairman,
Technical Standards Committee ‘‘A,’’
unless RUS waives the requirements of
the sample. In case of large, bulky or
extremely heavy samples, the sponsor
should contact the Chairman, Technical Standards Committee ‘‘A’’ (Electric), at the above address, before any
sample is shipped.
(d) Action on Proposal. RUS will inform a sponsor of the action taken on
the sponsor’s proposal.
[50 FR 47711, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.50 Removal of an item from listing or technical acceptance.
(a) Removal Actions. An item of material or equipment may be removed
from the listing or technical acceptance in accordance with the following
procedures upon determination that
the item is unsatisfactory or has been
misrepresented to the owner or RUS.
(b) Notification by the Committee. The
sponsor of an item of material or
equipment will be notified in writing of
a proposal to remove such item from
the listing or technical acceptance.
(c) Supplemental Information. Within
ten (10) days of receipt of such notification, the sponsor may submit to Committee ‘‘A’’ a letter expressing the
sponsor’s intent to submit written supplemental technical information relevant to Committee ‘‘A’s’’ determination. The sponsor must submit such information within twenty (20) days from
the submission of its letter to Committee ‘‘A.’’ Committee ‘‘A’’ will have
the discretion of making a decision following the expiration of the time periods provided in this paragraph.
(d) Review by the Technical Standards
Committee ‘‘A’’. Committee ‘‘A’’ will
consider all relevant information presented in determining whether an item
should be removed from the listing or
technical acceptance. Formal rules of
evidence and procedure shall not apply
to proceedings before Technical Standards Committee ‘‘A.’’
(e) Action by the Technical Standards
Committee ‘‘A’’. Committee ‘‘A’’ may
take one of the following actions:
(1) Order the immediate removal of
the item from the listing, or technical
acceptance,
(2) Condition the item’s continued
listing, or technical acceptance,
(3) Recommend a basis of settlement
which will adequately protect the interest of the Government, or
(4) Delay the effectiveness of its decision for a time period sufficient to
allow the sponsor to appeal to Technical Standards Committee ‘‘B.’’
All committee ‘‘A’’ decisions regarding
the actions listed above must be by
unanimous vote. If the vote is not
unanimous, the item will be referred to
Technical Standards Committee ‘‘B.’’
Written notice of Technical Standards
Committee ‘‘A’s’’ decision, stating the
basis for the decision, will be provided
to the sponsor.
279
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00289
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.60
7 CFR Ch. XVII (1–1–14 Edition)
(f) Additional Opportunity to Present
Information. At the request of the sponsor, RUS may afford additional opportunity for consideration of relevant information. Such additional opportunity may include, without limitation, a meeting between RUS and the
sponsor in such a forum that RUS may
determine. In making this decision,
RUS will consider, among other things,
the best interests of RUS, its borrowers, and the sponsor, and the best
manner to develop sufficient information relating to the proposed action.
(g) Appeal to the Technical Standards
Committee ‘‘B’’. Within ten (10) days of
notification of Committee ‘‘A’s’’ decision, a sponsor may appeal in writing
to Technical Standards Committee ‘‘B’’
to review Committee ‘‘A’s’’ decision,
specifying the reasons for such a request. Committee ‘‘B’s’’ determination,
in response to such request, shall be
based on the record developed before
Committee ‘‘A’’ and such additional information as Committee ‘‘B’’ may request. Formal rules of procedure and
evidence shall not apply to proceedings
before Committee ‘‘B.’’
(h) Action by Technical Standards Committee ‘‘B’’. Committee ‘‘B,’’ by majority vote, may take one of the following
actions:
(1) Order the immediate removal of
the item from listing, or technical acceptance,
(2) Condition the item’s continued
listing, or technical acceptance,
(3) Recommend a basis of settlement
which adequately protects the interests of the Government, or
(4) Delay the effectiveness of its decision for a time period sufficient to
allow the sponsor to appeal to the Administrator of RUS.
Failure to obtain a majority vote on
any of the above actions shall mean
that the product will continue to be
listed or accepted.
Written notice of Committee ‘‘B’s’’ decision stating the basis of the decision
will be provided to the sponsor.
(i) Appeal to the Administrator. Within
ten (10) days of the receipt of Committee ‘‘B’s’’ decision, a sponsor may
appeal to the Administrator to review
Committee ‘‘B’s’’ decision. If an appeal
is made, the sponsor shall submit a
written request to the Administrator,
Rural Utilities Service, Room 4053,
South Building, U.S. Department of
Agriculture, Washington, DC 20250–1500
specifying the reasons to request reconsideration. The Administrator will
have the option to decline the request,
in which case the decision of Committee ‘‘B’’ shall stand. If a review is
granted, the determination by the Administrator or the Administrator’s designee shall be based on the record developed before Committee ‘‘A’’ and
Committee ‘‘B’’ and such additional information as the Administrator may
request. Formal rules of procedure and
evidence shall not apply to the actions
of the Administrator.
(j) Action by the Administrator. The
Administrator may take one of the following actions:
(1) Order the immediate removal of
the item from the listing, or technical
acceptance,
(2) Condition its continued listing, or
technical acceptance, or
(3) Recommend a basis of settlement
which adequately protects the interests of the Government.
Written notice of the Administrator’s
determination, stating the basis for the
decision, will be provided to the sponsor.
The Administrator’s actions are final.
[50 FR 47711, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.60 List of materials and equipment.
(a) General. Those items of material
or equipment accepted by Technical
Standards Committee ‘‘A’’ or ‘‘B,’’
with the exception of technically accepted nondomestic items, will be listed in the List of Materials. Items
which do not qualify as domestic products may be accepted on a technical
basis only (technical acceptance) for a
period of one year as provided in
§ 1728.30(c)(1) and will not be included in
the List of Materials.
(b) Publishing and Revisions. RUS will
reissue the List of Materials every
year, dated July, and issue supplements, if needed, dated October, January, and April of every year. An RUS
office copy, which is the official current copy, of the List of Materials, will
be updated every time changes are
280
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00290
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.97
made by the Technical Standards Committees.
(c) Dual Listings. RUS, through its
Technical Standards Committees, will
accept for listing only one item of a
particular type of material or equipment for each manufacturer. If a manufacturer submits an item to perform
the identical function of a listed item,
RUS, through its Technical Standards
Committees, may accept that item and
remove the one previously listed. RUS
will list only new items of material and
equipment in the List of Materials.
Used items will not be considered for
listing.
[50 FR 47712, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.70 Procurement of materials.
(a) By Owner. When purchasing the
type of materials included in the List
of Materials, RUS borrowers shall purchase only materials listed in the List
of Materials, or materials which have a
current technical acceptance by RUS
and meet the ‘‘Buy American’’ requirement.
(b) By Contractor. When performing
work for an RUS borrower, contractors
shall supply only items from the general acceptance pages of the List of
Materials, or obtain the borrower’s
concurrence prior to purchase and use
of a technically nondomestic item or
any item listed on a conditional basis.
(c) Procurement of Unlisted Items. (1)
The borrower shall request prior approval from RUS for use of an item
that does not fall in categories established by RUS in the List of Materials
for which acceptability has been established by the Technical Standards
Committees.
(2) RUS will also determine, on a
case-by-case basis, whether to allow
use of an unlisted item in emergency
situations and for experimental use or
to meet a specific need. For purposes of
this part 1728, an emergency shall
mean a situation wherein the supply of
listed material and equipment from the
industry is not readily available, or the
standard designs are not applicable to
the borrower’s specific problem under
consideration.
(3) RUS will make arrangements for
test or experimental use of newly developed items requiring limited trial
use.
and
test
tate
RUS, working with the borrower
the manufacturer, will establish
locations for the items to faciliinstallation and observation.
[50 FR 47712, Nov. 20, 1985. Redesignated at 55
FR 39395, Sept. 27, 1990]
§ 1728.97 Incorporation by reference of
electric standards and specifications.
The materials listed below are incorporated by reference in the corresponding sections noted. The Director of the Federal Register approves
the incorporations by reference in accordance with 5 U.S.C. 552(a) and 1 CFR
part 51. A notice of any change in these
materials will be published in the FEDERAL REGISTER. Standards and specifications materials are available for
purchase at the addresses in the corresponding sections noted below. The
materials incorporated by reference
may also be inspected at the Rural
Utilities Service’s Program Development and Regulatory Analysis, Stop
1520, Room 5820–S, Washington, DC
20250–1522, call (202) 720–8674. Bulletins
are also available for inspection at the
National Archives and Records Administration (NARA). For information on
the availability of these materials at
NARA, call (202) 741–6030, or go to:
http://www.archives.gov or at the Office
of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington,
DC, or go to: http://www.archives.gov/
federallregister/
codeloflfederallregulations/
ibrllocations.html.
(a) The following RUS bulletins are
available from the Rural Utilities
Service, Room 1246–S, U.S. Department
of Agriculture, Washington, DC 20250.
For information on the availability of
this material, call (202) 720–1900. The
bulletins
containing
construction
standards (50–4 and 1728F–803 to 1728F–
811) may be obtained from the Superintendent of Documents, U.S. Government Printing Office (GPO) for Washington, DC 20402, Phone: 1–866–512–1800
(toll-free) 202–512–1800 (DC Area) or go
to the GPO Web site at: http://
www.gpoaccess.gov/about/index.html.
(1) Bulletin 50–4 (D–801), Specification
and Drawings for 34.5/19.9 kV Distribution Line Construction (11–86), incorporation approved for § 1728.98.
281
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00291
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.97
7 CFR Ch. XVII (1–1–14 Edition)
(2) Bulletin 50–15 (DT–3), RUS Specifications for Pole Top Pins with 13⁄8′ Diameter Lead Thread (1–51), incorporation approved for § 1728.98.
(3) Bulletin 50–16 (DT–4), RUS Specifications for Angle Suspension Brackets (3–52), incorporation approved for
§ 1728.98.
(4) Bulletin 50–19 (DT–7), RUS Specifications for Clevis Bolts (8–53), incorporation approved for § 1728.98.
(5) Bulletin 50–23 (DT–18), RUS Specifications for 60″ Wood Crossarm Braces
(2–71), incorporation approved for
§ 1728.98.
(6) Bulletin 50–31 (D–3), RUS Specifications for Pole Top Pins with 1’’ Diameter Lead Threads (2–79), incorporation approved for § 1728.98.
(7) Bulletin 50–32 (D–4), RUS Specifications for Steel Crossarm Mounted
Pins with 1″ Diameter Lead Threads
(10–50), incorporation approved for
§ 1728.98.
(8) Bulletin 50–33 (D–5), RUS Specifications for Single and Double Upset
Spool Bolts (2–51), incorporation approved for § 1728.98.
(9) Bulletin 50–34 (D–6), RUS Specifications for Secondary Swinging
Clevises (12–70), incorporation approved
for § 1728.98.
(10) Bulletin 50–35 (D–7), RUS Specifications for Service Swinging Clevises
(9–52), incorporation approved for
§ 1728.98.
(11) Bulletin 50–36 (D–8), RUS Specifications for Service Deadend Clevises
(9–52), incorporation approved for
§ 1728.98.
(12) Bulletin 50–40 (D–14), RUS Specifications for Pole Top Brackets for
Channel Type Pins (9–51), incorporation
approved for § 1728.98.
(13) Bulletin 50–41 (D–15), RUS Specifications for Service Wireholders (11–
51), incorporation approved for § 1728.98.
(14) Bulletin 50–55 (T–2), RUS Specifications for Overhead Ground Wire
Support Brackets (5–53), incorporation
approved for § 1728.98.
(15) Bulletin 50–56 (T–3), RUS Specifications for Steel Plate Anchors for
Transmission Lines (12–53), incorporation approved for § 1728.98.
(16) Bulletin 50–60 (T–9), RUS Specification—Single Pole Steel Structures,
Complete with Arms (12–71), incorporation approved for § 1728.98.
(17) Bulletin 50–72 (U–4), RUS Specification for Electrical Equipment Enclosures (5–35 kV) (10–79), incorporation
approved for § 1728.98.
(18) Bulletin 50–73 (U–5), RUS Specifications for Pad-Mounted Transformers (Single and Three-Phase) (1–
77), incorporation approved for § 1728.98.
(19) Bulletin 50–74 (U–6), RUS Specification for Secondary Pedestals (600
Volts and Below) (10–79), incorporation
approved for § 1728.98.
(20) Bulletin 50–91 (S–3), RUS Specifications for Step-Down Distribution
Substation Transformers (34.4–138 kV)
(1–78), incorporation approved for
§ 1728.98.
(21) Bulletin 1728F–700, RUS Specification for Wood Poles, Stubs and Anchor Logs (3–2011), incorporation approved for §§ 1728.98, 1728.202.
(22) Bulletin 1728F–803, Specifications
and Drawings for 24.9/14.4 kV Line Construction (10–98), incorporation approved for § 1728.98.
(23) Bulletin 1728F–804 (D–804), Specification and Drawings for 12.47/7.2 kV
Line Construction, October 2005, incorporation approved for § 1728.98.
(24) Bulletin 1728F–806 (D–806), Specifications and Drawings for Underground Electric Distribution, June
2000,
incorporation
approved
for
§ 1728.98.
(25) Bulletin 1728F–810, Electric
Transmission Specifications and Drawings, 34.5 kV to 69 kV (3–98), incorporation approved for §§ 1728.98 and 1728.201.
(26) Bulletin 1728F–811, Electric
Transmission Specifications and Drawings, 115 kV to 230 kV (3–98), incorporation approved for §§ 1728.98 and 1728.201.
(b) The following material is available for purchase from American Institute of Timber Construction (AITC),
7012 S. Revere Park Way, Englewood,
Colorado 80112, telephone (303) 792–9559,
web address: https://www.aitc-glulam.org/
index.asp.
(1) AITC 200–2004, Manufacturing
Quality Control Systems Manual For
Structural Glued Laminated Timber,
copyright 2004, (incorporation by reference approved for §§ 1728.201 and
1728.202.
(2) [Reserved]
(c) The following standards are available for purchase from the American
National Standards Institute (ANSI),
282
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00292
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.97
25 West 43rd Street, New York, New
York 10036, telephone (212) 642–4900,
Web address: http://www.ansi.org/.
(1) ANSI O5.2–2006, American National Standard for Wood Products,
Structural Glued Laminated Timber
for Utility Structures, approved December 5, 2006, incorporation by reference approved for §§ , 1728.201,
1728.202.
(2) ANSI O5.3.2008, American National Standard for Wood Poles and
Wood Products, Solid Sawn-Wood
Crossarms & Braces—Specifications &
Dimensions, approved July 15, 2008, incorporation by reference approved for
§ 1728.201.
(d) The American National Standards
Institute/Insulated Cable Engineers Association, Inc. (ANSI/ICEA) makes the
following material available for purchase from Global Engineering Documents for a fee at the following address: IHS Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112, Phone: (303) 397–7956;
(800)–854–7179, Fax: (303) 397–2740, email:
[email protected], Web site: http://global.ihs.com.
(1) ANSI/ICEA S–94–649–2004—Standard for Concentric Neutral Cables
Rated 5 Through 46 KV (ANSI/ICEA S–
94–649–2004), approved September 20,
2005, incorporation by reference approved for § 1728.204.
(2) ANSI/ICEA T–31–610–2007—Test
Method for Conducting Longitudinal
Water Penetration Resistance Tests on
Blocked Conductors (ANSI/ICEA T–31–
610–2007), approved October 31, 2007, incorporated by reference approved for
§ 1728.204.
(e) Copies of American Society for
Testing and Materials (ASTM) publications referenced in this specification
can be obtained from ASTM for a fee at
the following address: ASTM, 100 Barr
Harbor Drive, West Conshohocken, PA
19428–2959, Telephone: (610) 832–9585,
Web site: http://astm.org.
(1) ASTM B 3–01 (Reapproved 2007)—
Standard Specification for Soft or Annealed Copper Wire, (ASTM B 3–01) approved March 15, 2007, incorporated by
reference approved for § 1728.204.
(2) ASTM B 8–04—Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or
Soft (ASTM B 8–04), approved April 1,
2004, incorporated by reference approved for § 1728.204.
(3) ASTM B 230/B 230M–07—Standard
Specification for Aluminum 1350–H19
Wire for Electrical Purposes (ASTM B
230/B 230M–07), approved March 15, 2007,
incorporated by reference approved for
§ 1728.204.
(4) ASTM B 231/B 231M–04—Standard
Specification
for
Concentric-LayStranded Aluminum 1350 Conductors
(ASTM B 231/B 231M–04), approved April
1, 2004, incorporated by reference approved for § 1728.204.
(5) ASTM B 400–08—Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors (ASTM B 400–08), approved September 1, 2008, incorporated by reference approved for § 1728.204.
(6) ASTM B 496–04—Standard Specification for Compact Round Concentric-Lay-Stranded Copper Conductors
(ASTM B 496–04), approved April 1, 2004,
incorporated by reference approved for
§ 1728.204.
(7) ASTM B 609/B 609M–99—Standard
Specification for Aluminum 1350 Round
Wire, Annealed and Intermediate Tempers, for Electrical Purposes (ASTM B
609/B 609M–99), approved April 1, 2004,
incorporated by reference approved for
§ 1728.204.
(8) ASTM B 786–08—Standard Specification for 19 Wire Combination
Unilay-Stranded Aluminum 1350 Conductors for Subsequent Insulation
(ASTM B 786–08), approved September
1, 2008, incorporated by reference approved for § 1728.204.
(9) ASTM B 787/B 787M–04—Standard
Specification for 19 Wire Combination
Unilay-Stranded Copper Conductors for
Subsequent Insulation (ASTM B 787/B
787M–04), approved September 1, 2004,
incorporated by reference approved for
§ 1728.204.
(10) ASTM B 835–04—Standard Specification for Compact Round Stranded
Copper Conductors Using Single Input
Wire Construction (ASTM B 835–04), approved September 1, 2004, incorporated
by reference approved for § 1728.204.
(11) ASTM B902–04a—Standard Specification for Compressed Round Stranded Copper Conductors, Hard, MediumHard, or Soft Using Single Input Wire
283
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00293
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.97
7 CFR Ch. XVII (1–1–14 Edition)
Construction (ASTM B902–04a), approved September 1, 2004, incorporated
by reference approved for § 1728.204.
(12) ASTM D 1248–05—Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
(ASTM D 1248–05), approved March 1,
2005, incorporated by reference approved for § 1728.204.
(13) ASTM D 2275–01 (Reapproved
2008)—Standard Test Method for Voltage Endurance of Solid Electrical Insulating Materials Subjected to Partial
Discharges (Corona) on the Surface
(ASTM D 2275–01), approved May 1, 2008,
incorporated by reference approved for
§ 1728.204.
(14) ASTM E 96/E 96M–05—Standard
Test Methods for Water Vapor Transmission of Materials (ASTM E 96/E
96M–05), approved May 1, 2005, incorporated by reference approved for
§ 1728.204.
(f) The following standards from the
American Wood Protection Association
(AWPA), Book of Standards, 2008 edition, are available for purchase from
AWPA, P.O. Box 361784, Birmingham,
AL 35236–1784, telephone 205–733–4077,
http://www.awpa.com/.
(1) AWPA A1–06, Standard Methods for
Analysis of Creosote and Oil-Type Preservatives, amended in 2006, incorporation
by
reference
approved
for
§§ 1728.201 and 1728.202.
(2) AWPA A2–08, Standard Methods for
Analysis of Waterborne Preservatives and
Fire-Retardant Formulations, 2008, incorporation by reference approved for
§§ 1728.201 and 1728.202.
(3) AWPA A3–08, Standard Methods for
Determining Penetration of Preservatives
and Fire Retardants, revised in 2008, incorporation by reference approved for
§§ 1728.201and 1728.202.
(4) AWPA A5–05, Standard Methods for
Analysis of Oil-Borne Preservatives, 2008,
incorporation by reference approved
for §§ 1728.201 and 1728.202.
(5) AWPA A6–01, Method for the Determination of Oil-Type Preservatives and
Water in Wood, amended in 2001, incorporation by reference approved for
§ 1728.202.
(6) AWPA A7–04, Standard for Wet
Ashing Procedures for Preparing Wood
for Chemical Analysis, amended in 2004,
incorporation by reference approved
for § 1728.202.
(7) AWPA A9–01, Standard Method for
Analysis of Treated Wood and Treating
Solutions
By
X-Ray
Spectroscopy,
amended in 2001, incorporation by reference approved for §§ 1728.201 and
1728.202.
(8) AWPA M2–07, Standard for Inspection of Wood Products Treated with Preservatives, reaffirmed in 2007, incorporation
by
reference
approved
for
§ 1728.202.
(9) AWPA M3–05, Standard Quality
Control Procedures for Wood Preserving
Plants, amended in 2005, incorporation
by reference approved for § 1728.202.
(10) AWPA P1/P13–06, Standard for
Creosote Preservative, reaffirmed in 2006,
incorporation by reference approved
for §§ 1728.201 and 1728.202.
(11) AWPA P5–08, Standard for Waterborne Preservatives, revised in 2008, incorporation by reference approved for
§§ 1728.201and 1728.202.
(12) AWPA P8–08, Standard for OilBorne Preservatives, revised in 2008, incorporation by reference approved for
§§ 1728.201and 1728.202.
(13) AWPA P9–06, Standards for Solvents and Formulations for Organic Preservative Systems, copyright 2008, incorporation by reference approved for
§§ 1728.201 and 1728.202.
(g) The following material is available from the Insulated Cable Engineers Association (ICEA) and may be
purchased from Global Engineering
Documents for a fee at the following
address: IHS Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112, Phone: (303) 397–7956;
(800)–854–7179, Fax: (303) 397–2740, email:
[email protected], Web site: http://global.ihs.com.
(1) ICEA T–32–645–93—Guide for Establishing Compatibility of Sealed
Conductor Filler Compounds with Conducting Stress Control Materials (ICEA
T–32–645–93), approved February 1993,
incorporated by reference approved for
§ 1728.204.
(2) [Reserved]
(h) The following material is available from Southern Pine Inspection
Bureau Standards, 4709 Scenic Highway, Pensacola, Florida 32504–9094,
telephone (850) 434–2611. The web address for the Southern Pine Inspection
Bureau is http://www.spib.org/.
284
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00294
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.98
(1) Special Product Rules for Structural,
Industrial, and Railroad-Freight Car
Lumber, effective October 15, 1991, incorporation by reference approved for
§ 1728.201.
(2) [Reserved]
(i) The following material is available for purchase from West Coast
Lumber Inspection Bureau, P.O. Box
23145, Portland, Oregon 97281, telephone
(503) 639–0651, fax (503) 684–8928. The web
address for is http://www.wclib.org/.
(1) Standard No. 17, Grading Rules for
West Coast Lumber, Revised January 1,
2004, incorporation by reference approved for § 1728.201.
(2) [Reserved]
[76 FR 36963, June 24, 2011, as amended at 77
FR 19528, Apr. 2, 2012]
§ 1728.98 Electric standards and specifications.
(a) To comply with this part, you
must follow the requirements contained in the following REA/RUS bulletins. These bulletins are incorporated
by reference in § 1728.97 of this part.
(1) Bulletin 50–4 (D–801), Specification
and Drawings for 34.5/19.9 kV Distribution Line Construction (11–86).
(2) Bulletin 50–15 (DT–3), RUS Specifications for Pole Top Pins with 13⁄8′ Diameter Lead Thread (1–51).
(3) Bulletin 50–16 (DT–4), RUS Specifications for Angle Suspension Brackets (3–52).
(4) Bulletin 50–19 (DT–7), RUS Specifications for Clevis Bolts (8–53).
(5) Bulletin 50–23 (DT–18), RUS Specifications for 60″ Wood Crossarm Braces
(2–71).
(6) Bulletin 50–31 (D–3), RUS Specifications for Pole Top Pins with 1″ Diameter Lead Threads (2–79).
(7) Bulletin 50–32 (D–4), RUS Specifications for Steel Crossarm Mounted
Pins with 1″ Diameter Lead Threads
(10–50).
(8) Bulletin 50–33 (D–5), RUS Specifications for Single and Double Upset
Spool Bolts (2–51).
(9) Bulletin 50–34 (D–6), RUS Specifications for Secondary Swinging
Clevises (12–70).
(10) Bulletin 50–35 (D–7), RUS Specifications for Service Swinging Clevises
(9–52).
(11) Bulletin 50–36 (D–8), RUS Specifications for Service Deadend Clevises
(9–52).
(12) Bulletin 50–40 (D–14), RUS Specifications for Pole Top Brackets for
Channel Type Pins (9–51).
(13) Bulletin 50–41 (D–15), RUS Specifications for Service Wireholders (11–
51).
(14) Bulletin 50–55 (T–2), RUS Specifications for Overhead Ground Wire
Support Brackets (5–53).
(15) Bulletin 50–56 (T–3), RUS Specifications for Steel Plate Anchors for
Transmission Lines (12–53).
(16) Bulletin 50–60 (T–9), RUS Specification—Single Pole Steel Structures,
Complete with Arms (12–71).
(17) Bulletin 50–72 (U–4), RUS Specification for Electrical Equipment Enclosures (5–35 kV) (10–79).
(18) Bulletin 50–73 (U–5), RUS Specifications for Pad-Mounted Transformers (Single and Three-Phase) (1–
77).
(19) Bulletin 50–74 (U–6), RUS Specification for Secondary Pedestals (600
Volts and Below) (10–79).
(20) Bulletin 50–91 (S–3), RUS Specifications for Step-Down Distribution
Substation Transformers (34.4–138 kV)
(1–78).
(21) Bulletin 1728F–700, RUS Specification for Wood Poles, Stubs and Anchor Logs (3–2011).
(22) Bulletin 1728F–803, Specifications
and Drawings for 24.9/14.4 kV Line Construction (10–98).
(23) Bulletin 1728F–804 (D–804), Specification and Drawings for 12.47/7.2 kV
Line Construction, October 2005.
(24) Bulletin 1728F–806 (D–806), Specifications and Drawings for Underground Electric Distribution, June
2000.
(25) Bulletin 1728F–810, Electric
Transmission Specifications and Drawings, 34.5 kV to 69 kV (3–98).
(26) Bulletin 1728F–811, Electric
Transmission Specifications and Drawings, 115 kV to 230 kV (3–98).
(b) The terms ‘‘RUS form’’, ‘‘RUS
standard form’’, ‘‘RUS specification’’,
and ‘‘RUS bulletin’’ have the same
meanings as the terms ‘‘REA form’’,
‘‘REA standard form’’, ‘‘REA specification’’, and ‘‘REA bulletin’’, respectively unless otherwise indicated.
[76 FR 36964, June 24, 2011]
285
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00295
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.201
7 CFR Ch. XVII (1–1–14 Edition)
§ 1728.201 Bulletin 1728H–701, Specification for Wood Crossarms (Solid
and Laminated), Transmission Timbers and Pole Keys.
(a) General Provisions. (1) This section
implements contractual provisions between Rural Utilities Service (RUS)
and borrowers receiving financial assistance. The contractual agreement
between RUS and its borrowers requires the borrower’s system to be constructed in accordance with agency accepted plans and specifications. Each
electric borrower must purchase only
wood crossarms produced in accordance
with the specification in this section.
(2) Each electric borrower shall require each contractor to agree in writing to furnish only materials produced
in accordance with the specifications
in this section.
(3) This specification describes the
minimum acceptable quality of wood
distribution crossarms and transmission crossarms (hereinafter called
crossarms) that are purchased by or for
borrowers. Where there is conflict between this specification and any other
specification referred to in this section, this specification shall govern.
(4) Various requirements relating to
quality control and inspection are contained in § 1728.202 of this part, Specification for Quality Control and Inspection of Timber Products. Section
1728.201 of this part, ANSI O5.2, (incorporated by reference in § 1728.97), and
ANSI O5.3, (incorporated by reference
in § 1728.97) shall be followed exactly
and shall not be interpreted or subjected to judgment by the quality control person or an independent inspector.
(5) The purchaser shall purchase from
producers only material that meets the
requirements of this specification.
Each purchaser shall use a written purchase order to purchase material for
use in financed systems in order to ensure compliance with the standards
and specifications of this part. The
written purchase order shall contain a
provision that specifically requires the
producer to comply with the provisions
of this part. The purchase order shall
contain a provision that specifically
requires the producer to make the
treating plant and storage areas available, during normal business hours, in
order for representatives of either the
purchaser or this agency to inspect
such to determine compliance with the
standards and specifications of this
part.
(6) The producer shall provide the inspectors with full information (drawings, etc.) relating to the requirements
contained in the purchase order which
is supplementary to this specification.
(7) The producer shall maintain, or
have access to, adequate laboratory facilities at or very near the treating
plant, and all chemical tests, assays or
analyses associated with the treatment
shall be independently performed in
this laboratory by both the quality
control designee and the borrower’s inspector. The producer may use a central laboratory as accepted on a caseby-case basis.
(8) Inspection and treatment of all
timber products produced under this
specification shall be performed after
receipt of the order from the purchaser,
except as provided for reserve treated
stock.
(9) The testing and inspection of the
lamination process shall be in accordance with AITC 200 (incorporated by
reference in § 1728.97).
(10) With the exception of reserve
treated stock, if requested by the borrower invoices for treated timber products shall be accompanied, in duplicate, by a copy of the producer’s Certificate of Compliance and a copy of either the Independent Inspection Report
or a Quality Assurance Plan Certificate. For reserve treated stock, inspection reports shall be available from the
inspection agency. When shipped from
reserve stock, the invoice shall bear an
endorsement and a further certification by the producer that the material meets the requirements of this
specification and any supplementary
requirements cited in the purchase
order under which it is purchased.
(11) Crossarms shall be warranted to
conform to this specification. If any
crossarm is determined to be defective
or does not conform to this specification within 1 year after delivery to the
borrower, it shall be replaced as
promptly as possible by the producer.
In the event of failure to do so, the purchaser may make such replacement
286
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00296
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.201
and the cost of the crossarm, at destination, shall be recoverable from the
producer.
(12) Crossarm producers shall take
out and maintain liability insurance
for not less than $1 million. Upon request, evidence of compliance shall be
provided. The evidence shall be in the
form of a certificate of insurance
signed by a representative of the insurance company and include a provision
that no changes in, or cancellation of,
will be made without the prior written
notice to the Director, Electric Staff
Division, Rural Utilities Service.
(b) Definitions.
Agency refers to Rural Utilities Service (RUS), United States Department
of Agriculture.
Arm refers to structural wood member used to support electrical conductors and equipment. Arm is used interchangeably with crossarm.
Certificate of compliance is a written
certification by an authorized employee of the producer that the material shipped meets the requirements of
this specification and any supplementary requirements specified in a
purchase order from a borrower or the
borrower’s contractor.
Crossarm refers to a structural wood
member used to support electrical conductors and equipment and is a term
used interchangeably with arm.
Independent inspection relates to examination of material by an independent inspector employed by a commercial inspection agency.
Inspection means an examination of
material in sufficient detail to ensure
conformity to all phases of the specification under which it was purchased.
Lot is a quantity of crossarms of like
size, conditioning, and fabrication, usually making up one treating charge.
Producer is used to describe the party
who manufactures and/or treats crossarms.
Purchaser refers to either the borrower or contractors acting as the borrower’s agent, except where a part of
the specification specifically refers to
only the borrower or the contractor.
Quality control designee refers to an
individual designated by the producer
to oversee proper operation of the manufacturer’s internal quality control
system.
Reserve treated stock consists of timber products treated in accordance
with this specification, prior to and in
anticipation of the receipt of specific
orders, and held in storage ready for
immediate shipment.
Supplier is a term used interchangeably with producer, or in some cases,
may be the distributor selling crossarms to the borrower.
Treating plant is the organization
that applies the preservative treatment
to the crossarms.
(c) Independent Inspection Plan. This
plan or a Quality Assurance Plan, as
described in paragraph (e) of this section, is acceptable for supplying crossarms. All crossarms purchased under
the Independent Inspection Plan, for
use on an agency financed system shall
be inspected by a qualified independent
inspector in accordance with § 1728.202
of this part.
(1) The borrower has the prerogative
to contract directly with the inspection agency for service. The borrower
should, where practical, select the inspection agency so that continual employment is dependent only on performance acceptable to the borrower
and in accordance with this specification. The selected inspection agency
shall not be allowed to subcontract the
service to any other inspection agency.
(2) The producer shall not be permitted to be a party to the selection of
the inspection agency by the borrower
and shall not interfere with the work
of the inspector, except to provide notification of the readiness of material for
inspection. To obtain inspection services for reserve stock, the producer
may deal directly with the inspection
agency. The producer shall not be permitted to treat material before it has
been properly inspected and hammered
with the appropriate inspection/quality
assurance mark.
(3) The methods of inspection described in this section and in § 1728.202
of this part shall be used no matter
which plan crossarms are produced
under, i.e., Independent Inspection
Plan, or Quality Assurance Plans, as
described in this section
287
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00297
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.201
7 CFR Ch. XVII (1–1–14 Edition)
(d) Quality Assurance Plans. The producer shall furnish crossarms conforming to this specification as monitored by an acceptable Quality Assurance Plan. Borrower groups or agents
for borrower groups endeavoring to operate Quality Assurance Plans shall
submit their plan for assuring quality
control to the Chairman, Technical
Standards Committee ‘‘A’’, Electric
Staff Division, Rural Utilities Service,
Stop 1569, Washington, DC 20250–1569.
(e) Material Requirements. (1) Material
and Grade. All crossarms furnished
under this specification shall be free of
brashy wood, decay, and insect holes
larger than 3⁄32 of an inch and shall
meet additional requirements as shown
on specific drawings. Crossarms shall
be made of one of the following:
(i) Douglas-fir which conforms to the
applicable crossarm provisions of paragraphs 170 and 170a, or the applicable
transmission arm provisions of paragraphs 169 and 169a of the Standard No.
17 Grading Rules for West Coast Lumber (incorporated by reference in
§ 1728.97). Only coastal origin Douglasfir shall be used for Douglas-fir crossarms manufactured under this specification;
(ii) Southern Yellow Pine which conforms to the provisions of Dense Industrial Crossarm 65, as described in paragraph 31.2 in the 2001 Southern Pine Inspection Bureau’s Special Product
Rules for Structural, Industrial, and
Railroad-Freight Car Lumber, (incorporated by reference at § 1728.97); or
(iii) Laminated wood crossarms shall
conform to ANSI O5.2 (incorporated by
reference at § 1728.97) and have at least
the same load carrying capacity as the
solid sawn arm it replaces. The load
carrying capacity of the laminated
arms shall be determined by one of the
procedures outlined in ANSI O5.2.
(2) Borrowers may use alternative
crossarms that are listed in Informational Publication 202–1, List of Materials Acceptable for Use on Systems of
USDA Rural Utilities Service Borrowers. For information on the availability of this material, call RUS at
(202)
720–1900,
or
go
to:
http://
www.rurdev.usda.gov/
UEPlEngineeringlLOM.html.
(3) Knots. Sound, firm, and tight
knots, if well spaced, are allowed.
(i) Slightly decayed knots are permitted, except on the top face, provided the decay extends no more than
3⁄4 of an inch into the knot and provided the cavities will drain water
when the arm is installed. For knots to
be considered well spaced, the sum of
the sizes of all knots in any 6 inches of
length of a piece shall not exceed twice
the size of the largest knot permitted.
More than one knot of maximum permissible size shall not be in the same 6
inches of length. Slightly decayed,
firm, or sound ‘‘pin knots’’ (3⁄8 of an
inch or less) are not considered in size,
spacing, or zone considerations.
(ii) Knots are subject to limits on
size and location as detailed in Tables
I and II.
TABLE I—KNOT LIMITS FOR DISTRIBUTION ARMS (SEE FIGURE 1, APPENDIX A)
[All dimensions in inches]
Maximum
Diameter
Class of knot and location
Knot
Close grain
Round Knots
Single Knot: Maximum Diameter Center Section*
Upper Half ............................................................................
Lower Half ............................................................................
Elsewhere ...........................................................................................
Sum of Diameters in a 6-Inch Length: Maximum:
Center Section
Upper Half ............................................................................
Lower Half ............................................................................
Elsewhere ...........................................................................................
Dense grain
14
⁄
1
1 ⁄
........................
........................
........................
1
11⁄4
1
1 ⁄2
11⁄2
2
21⁄2
........................
........................
........................
2
21⁄2
3
34
* No knot shall be closer than its diameter to the pole mounting hole.
288
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00298
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.201
TABLE II—KNOT LIMITS FOR TRANSMISSION ARMS (SEE FIGURE 2, APPENDIX A)
[All dimensions in inches]
Maximum diameter for Single
Knot
Pole mounting hole zone *
UPPER HALF (inner zone) ...............................................................................................................
UPPER HALF (outer zone) ...............................................................................................................
3⁄4.
1 for close grain.
11⁄4 dense grain.
Wide face (two sides)
Other locations transmission arm size **
Narrow face
Along
centerline
Edge
45⁄8 × 55⁄8 or less ...............................................................................................
55⁄8 × 73⁄8 ...........................................................................................................
35⁄8 × 93⁄8 ...........................................................................................................
1
11⁄4
3⁄4
11⁄4
13⁄8
13⁄4
11⁄4
17⁄8
21⁄4
* No knot shall be closer than its diameter to the pole mounting hole.
** For cross sections not shown, refer to grading rules.
(iii) Knot clusters shall be prohibited
unless the entire cluster, measured on
the worst face, is equal to or less than
the round knot allowed at the specific
location.
(iv) Spike knots shall be prohibited
in deadend arms. Any spike knot
across the top face shall be limited to
the equivalent displacement of a knot
3⁄8 of an inch deep on one face and the
maximum round knot for its particular
location on the worst face, with a maximum width of 1 inch measured at the
midpoint of the spiked section. Elsewhere across the bottom or side faces,
spike knots shall not exceed 1⁄2 the
equivalent displacement of a round
knot permitted at that location, provided that the depth of the knot on the
worst face shall not exceed the maximum round knot allowed at that location.
(v) Loose knots and knot holes shall
be such that they can drain water when
the arm is installed in its normal position. In the center section, upper half,
loose knots shall not be greater than 1⁄2
the dimensions of round knots. Elsewhere, loose knots shall not be greater
than the round knot dimension. Loose
knots shall be prohibited in deadend
arms.
(vi) All knots except those ‘‘spike’’
knots intersecting a corner shall be
measured on the least diameter of the
knot.
(vii) A knot shall be considered to occupy a specific zone or section if the
center of the knot (i.e., pith of knot) is
within the zone or on the zone’s boundary.
(viii) If a round or oval knot appears
on two faces and is in two zones, each
face shall be judged independently.
When this does not occur, average the
least dimension showing on both faces.
Knots which occur on only one face of
a free of heart center (FOHC) arm shall
be permitted to be 25 percent larger
than the stated size.
(ix) Two or more knots opposite each
other on any face shall be limited by a
sum not to exceed the size of a maximum single knot permitted for the location. On all four faces, all knots shall
be well spaced.
(x) Knots which have a maximum of
5⁄8 inch diameter may intersect pin
holes in the center section. One inch
diameter knots may intersect insulator
pin holes elsewhere.
(4) Miscellaneous characteristics, features, and requirements. (i) The top face
of distribution crossarms shall not
have more than four medium pitch and
bark pockets in 8-foot arms, and not
more than five pitch and bark pockets
in 10-foot arms. Elsewhere a maximum
of six medium pockets in 8-foot arms
and eight in 10-foot arms shall be permitted. Equivalent smaller pockets
shall be permissible. An occasional
large pocket is permissible.
(ii) Shakes shall be prohibited.
(iii) Prior to treatment on properly
seasoned arms, single face checks shall
not exceed an average penetration of 1⁄4
the depth from any face and shall be
limited to 10 inches long on the top
face, and 1⁄3 the arm length on the
289
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00299
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.201
7 CFR Ch. XVII (1–1–14 Edition)
other faces. Checks shall not be repeated in the same line of grain in adjacent pin holes. The sum of the average depths of checks occurring in the
same plane on opposite faces shall be
limited to 1⁄4 the face depth.
(iv) Compression wood shall be prohibited on any face. Compression wood
is permitted if wholly enclosed in the
arm, more than six annual rings from
the surface, and not over 3⁄8 of an inch
in width.
(v) Insect holes 3⁄32 of an inch and
larger shall be prohibited. Insect pin
holes (i.e. holes not over 1⁄16 of an inch
diameter) shall be allowed if scattered
and not exceeding 10 percent of the arm
girth.
(vi) Wane shall be allowed on one
edge, limited to approximately 1 inch
measured across the corner. Outside of
the top center section, an aggregate
length not to exceed 2 feet may have
wane up to 11⁄2 inches on an occasional
piece on one or both edges. Bark shall
be removed.
(vii) Prior to and after preservative
treatment, crook, bow, or twist shall
not exceed 1⁄2 of an inch in 8 foot arms
and 5⁄8 of an inch in 10 foot arms.
(f) Manufacturing. (1) All dimensions
and tolerances shall conform to those
shown on the drawings in this section
or drawings supplied with the purchase
order. Drawings supplied shall meet or
exceed minimum dimensions and tolerances shown on the drawings in this
section. Cross-sectional dimensions
shall be measured and judged at about
1⁄4 the arm length, except when the defects of ‘‘skip dressing’’ or ‘‘machine
bite or offset’’ are involved.
(2) Lamination techniques shall comply with ANSI O5.2 (incorporated by
reference at § 1728.97).
(3) Pin and bolt holes shall be
smoothly bored without undue splintering where drill bits break through
the surface. The center of any hole
shall be within 1⁄8 of an inch of the center-line locations on the face in which
it appears. Holes shall be perpendicular
to the starting and finishing faces.
(4) Shape. The shape of the arms at
any cross section, except for permissible wane, shall be as shown on the respective drawings in this section or
supplied with the order. The two top
edges may be either chamfered or
rounded 3⁄8 of an inch radius. The two
bottom edges shall be slightly eased 1⁄8
of an inch radius for the entire length.
(5) Incising. The lengthwise surfaces
of Douglas-fir crossarms shall be incised approximately 1⁄4 of an inch deep.
The incision shall be reasonably clean
cut with a spacing pattern that ensures
uniform penetration of preservative.
(6) Quality of work. All crossarms
shall be of the highest quality production. Crossarms shall be dressed on
four sides, although ‘‘hit and miss
skips’’ may occur on two adjacent faces
on occasional pieces.
(g) Conditioning prior to treatment. (1)
All solid sawn crossarms shall be made
of lumber which has been kiln-dried.
Douglas-fir arms shall have an average
moisture content of 19 percent or less,
with a maximum not to exceed 22 percent in a single arm. Southern Yellow
Pine arms shall have an average moisture content of 22 percent or less, with
a maximum not to exceed 30 percent in
a single arm.
(2) Moisture content levels shall be
measured at about 1⁄4 the length and at
a depth of about 1⁄5 the crossarm’s
thickness. Additionally, the moisture
content gradient between the shell (i.e.
1⁄4 of an inch deep) and the core (i.e.
about 1 inch deep) shall not exceed 5
percentage points.
(3) A minimum of at least 20 solid
sawn crossarms per treating charge
shall be measured to verify moisture
content and shall be duly recorded by
the quality control designee.
(4) The moisture content of lumber
used in laminating shall, at the time of
gluing, be within the range of 8 to 12
percent, inclusive.
(h) Preservatives. (1) The preservatives
shall be:
(i) Creosote which conforms to the
requirements of AWPA P1/13–06 (incorporated by reference at § 1728.97), when
analyzed in accordance with the methods in AWPA A1–06 (incorporated by
reference at § 1728.97), sections 2, 3, 4,
either 5 or 9, and 6;
(ii) Pentachlorophenol which contains not less than 95 percent
chlorinated phenols and conforms to
AWPA P8–08 (incorporated by reference
at § 1728.97) when analyzed in accordance with AWPA A5–05 (incorporated
by reference at § 1728.97) or AWPA A9–01
290
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00300
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.201
(incorporated by reference at § 1728.97).
The hydrocarbon solvents for introducing the preservative into the wood
shall meet the requirements of AWPA
P9–06 (incorporated by reference at
§ 1728.97) Type A;
(2) Waterborne Preservatives shall be
any of the following:
(i) Ammoniacal Copper Arsenates
(ACA) and Ammoniacal Copper Zinc
Arsenate (ACZA) which shall meet the
requirements of AWPA P5–08 (incorporated by reference at § 1728.97), when
analyzed in accordance with methods
in AWPA A2–08 (incorporated by reference at § 1728.97) or AWPA A9–01 (incorporated by reference at § 1728.97);
and
(ii) Chromated Copper Arsenates
(CCA) which shall meet the requirements of one of the formulations given
in AWPA P5–08 (incorporated by reference at § 1728.97) sections 4, 5 or 6, and
10. Tests to establish conformity shall
be made in accordance with AWPA A2–
08 (incorporated by reference at
§ 1728.97) or A9–01 (incorporated by reference at § 1728.97).
(A) The pH of treating solutions of
the waterborne preservatives shown in
AWPA P5–08 (incorporated by reference
at § 1728.97) section 10, shall be determined in accordance with AWPA A2–08,
(incorporated by reference at § 1728.97)
section 8.
(B) The oxide formulations of waterborne preservatives shall be supplied.
(C) Douglas-fir crossarms shall not be
treated with CCA preservatives.
(D) Materials treated with waterborne preservatives shall be free of
visible surface deposits.
(iii) Copper Naphthenate (CuN) concentrate used to prepare wood preserving solutions shall contain not less
than 6 percent nor more than 8 percent
copper in the form of CuN and shall
conform to AWPA P8–08 (incorporated
by reference at § 1728.97) when analyzed
in accordance with AWPA A5–05 (incorporated by reference at § 1728.97). The
hydrocarbon solvents for introducing
the preservative into the wood shall
meet the requirements of AWPA P9–06
(incorporated by reference at § 1728.97)
Type A.
(i) Preservative treatment. (1) All timber products treated under this specification shall be treated by either a
pressure or a thermal (non-pressure)
process.
(2) These materials may be further
conditioned by steaming, or by heating
in hot oil (Douglas-fir), within the following limits:
Time hours (max.)
Steam ..........................
Heating in Preservation
3 .............................
3 .............................
Temperature
220 °F
210 °F
(3) A final steam or hot oil bath may
be used only to meet cleanliness requirements of paragraph (k) of this section. Total duration of the final steam
bath shall not exceed 2 hours and the
temperature shall not exceed 240 degrees Fahrenheit.
(j) Results of treatments. (1) The quality control designee shall test or supervise the testing of each treated charge
for penetration and retention.
(2) Method of sampling. When testing
penetration and retention, a borer core
shall be taken from not less than 20
crossarms in each treating charge. The
borings shall be taken from any face
except the top face at a point as close
to the end as possible, being at least 3
inches from the end of the arm and no
closer than 3 inches from the edge of
the holes. The bored holes shall be
plugged
with
preservative-treated
plugs driven into the arm. Borings
from laminated arms shall not be
taken from the same laminate unless
there is an end joint separation.
(3) As determined in accordance with
AWPA A3–08 (incorporated by reference
at § 1728.97) all sapwood present in
Douglas-fir or Southern Yellow Pine
crossarms shall be completely penetrated with preservative. In the
heartwood of Douglas-fir crossarms,
the penetration shall be not less than 3
inches longitudinally from the edge of
holes and ends, and at least 3⁄16 inch
from the surface of any face.
(4) Retention of preservative in the
outer 6⁄10 of an inch for Douglas-fir and
one inch for Southern Yellow Pine
assay zones at the treating plant shall
be not less than:
291
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00301
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.201
7 CFR Ch. XVII (1–1–14 Edition)
Retention
(pcf)
Preservation
Creosote ........................................................................................................................
Pentachlorophenol .........................................................................................................
ACA, ACZA, or CCA ......................................................................................................
Copper Naphthenate .....................................................................................................
8
* 0.4
0.4
0.04
AWPA analysis
method **
A6.
A5.
A2, A7, or A9.
A5, or A9.
* The pentachlorophenol retention is for the lime ignition method. The copper pyridine method, retention 0.36 pcf is required
when timbers may have been in contact with salt water, and for all species native to the Pacific coast region. It is not required
when it specifically states on the rough sawn material invoice that this material has not been in contact with salt water or is
shown by analysis to have no additional chlorides present in the wood before treating.
** All the AWPA Analysis Methods are incorporated by reference at § 1728.97.
(5) Cleanliness of lengthwise surfaces
of all crossarms shall be free from
tarry, greasy, or sticky material, and
from
oil
exudation
and
pentachlorophenol
crystallization
(blooming).
(6) Re-treatment of materials which
do not meet the penetration and retention requirements of this specification
may be done only twice. Initial treatment steaming time plus re-treatment
steaming time, combined, shall not exceed time allowed in paragraph (i) of
this section.
(k) Marks and brands. (1) All crossarms shall be legibly branded (hot
brand) or die-stamped and to a depth of
approximately 1⁄16 of an inch before
treatment.
(2) The letters and figures shall be
not less than 1⁄2 of an inch in height.
The top of the brand shall be oriented
to the top of the arm.
(3) The brand or die-stamp shall include:
(i) The manufacturer’s identification
symbol;
(ii) Month and year of manufacture;
(iii) Species of timber such as DF for
Douglas-fir and SP for Southern Yellow Pine; and
(iv) The preservative notated with a
C for creosote, P for penta, S for
waterbornes,
or
N
for
Copper
Naphthenate.
(4) An example is:
M–6–06 Manufacturer—Month—Year
DF–P Douglas-fir—penta treated
(5) The brand or stamp shall be
placed on either of the wide surfaces of
the arms, oriented with letters right
side up towards the top of the arm and
preferably about 1 foot from the midpoint of the arm.
(6) Each producer should mark each
type of arm in approximately the same
location on the arm.
(7) Brands, inspection marks, or quality assurance marks shall be removed
from arms that do not meet these specifications.
(l) Storage. (1) Producers may treat
crossarms for reserve stock under any
of the agency approved plans.
(2) Crossarms treated with oil-borne
preservatives which have been held in
storage for more than 1 year before
shipment to the borrower, shall be reassayed before shipment and shall be
re-treated if found nonconforming for
retention on orders placed in accordance with this section.
(3) Crossarms shall meet the assay
after re-treatment in accordance with
paragraph (k) of this section.
(4) Crossarms which are held in storage after final acceptance shall be
stacked in piles or on skids in such a
manner as to assure good ventilation.
The stacks shall be covered or stored
indoors for protection from the sun and
weather to reduce checking, bending,
and loss of preservative.
(m) Drawings. (1) The drawings of Appendix B of this section, Crossarm
Drilling Guide, have a type number and
show in detail the hole size, shape, and
pattern desired for crossarms ordered
under this specification.
(2) Purchase orders shall indicate the
type crossarm required.
(3) Crossarms shall be furnished in
accordance with the details of these
drawings or in accordance with drawings attached to the purchase order.
(4) Appropriate drawings for transmission arms are to be specified and included with purchase orders. Technical
drawings for transmission crossarms
are published in Bulletin 1728F–811,
‘‘Electric Transmission Specifications
and Drawings, 115kV through 230kV’’
(incorporated by reference at § 1728.97),
and
Bulletin
1728F–810,
‘‘Electric
292
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00302
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.201
Transmission Specification and Drawings, 34.5kV through 69kV’’ (incorporated by reference at § 1728.97).
(n) Destination inspection. All crossarms shall meet or exceed their minimum dimensions for at least 1 year
after date of delivery to the borrower.
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00303
Fmt 8010
Sfmt 8006
Q:\07\7V11.TXT
ofr150
PsN: PC150
ER24JN11.013
293
§ 1728.201
7 CFR Ch. XVII (1–1–14 Edition)
APPENDIX C TO § 1728.201—METRIC CONVERSION FACTORS
To convert from
To
Multiply by
Foot (ft) ........................................................................................................
Inch (in) .......................................................................................................
Meter (m) .........................................
Centimeter .......................................
0.3048
2.54
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00304
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
ER24JN11.014
294
Rural Utilities Service, USDA
§ 1728.202
APPENDIX C TO § 1728.201—METRIC CONVERSION FACTORS—Continued
To convert from
To
Pound per cubic foot (pcf) (lb/ft 3) ...............................................................
Pound per square inch (psi) (lb/in 2) ...........................................................
Degrees Fahrenheit (°F) .............................................................................
Kilogram per cubic meter (kg/m 3) ...
Kilogram per square meter (kg/m 2)
Degrees Celsius (°C) .......................
§ 1728.202 Bulletin 1728H–702, Specification for Quality Control and Inspection of Timber Products.
(a) Scope. This specification describes
in more detail the responsibilities and
procedures pertaining to quality control for crossarms, as specified in
§ 1728.201 of this part, and poles, covered in Bulletin 1728F–700, ‘‘Specification for Wood Poles, Stubs and Anchor
Logs,’’ incorporated by reference in
§ 1728.97 of this part and in § 1755.97 of 7
CFR part 1755.
(b) General stipulations. (1) Conformance of poles and crossarms to agency
specifications for the most part is the
responsibility of the producer’s management.
A member of the producer’s staff
shall be designated quality control designee and charged with the responsibility for the exercise of proper quality
control procedures.
(2) The requirements of AWPA M3–05
(incorporated by reference at § 1728.97),
covering records, adequate laboratory,
plant gauges, and other plant facilities
including proper storage, shall be followed.
(3) The methods of inspection described in this section shall be used no
matter which plan timber products are
purchased under, i.e., Insured Warranty
Plan, Independent Inspection Plan, or
Quality Assurance Plans, as described
in § 1728.201 of this part or Bulletin
1728F–700 (incorporated by reference at
§ 1728.97). The number of poles and
crossarms actually inspected by monitors for quality control under a Quality Assurance Plan or the Insured Warranty Plan may vary from the number
of poles and crossarms inspected under
the Independent Inspection Plan.
Under the Independent Inspection
Plan, each pole and a sample number of
crossarms shall be inspected.
(4) Under the Independent Inspection
Plan, the borrower should designate in
the purchase order which inspection
agency it has selected. Unless the bor-
Multiply by
16.01846
703.0696
5/9(F°¥32)
rower contracts for inspection as a separate transaction, the treating company shall obtain the services of the
borrower’s designated inspection agency. For reserve treated stock for purchase under the Independent Inspection
Plan, the treating company shall obtain the services of an inspection agency.
(5) Individual inspectors in the employ of Independent Inspection Agencies shall be experienced and competent. The inspector shall perform all
phases of the inspection personally and
in the proper sequence. The primary responsibility of the inspector is to determine, for the borrower, by careful
inspection and verification, that the
timber products, preservative, and
treatment meet the requirements of
Bulletins 1728F–700 (incorporated by
reference at § 1728.97) and § 1728.201 of
this part (Bulletin 1728H–701) and that
the methods, storage facilities, and
production equipment conform to applicable specifications. For details of
the inspector’s qualifications see Appendix A of this section.
(6) Independent inspection agencies
and inspectors shall maintain their impartiality. To do so, inspection agencies, inspectors, producers and brokers
must maintain the greatest degree of
separation and eliminate even the appearance of a conflict of interest. Inspection agencies shall not receive gratuities from or enter into financial
agreements, other than for inspection
services, with suppliers for which they
perform inspection. Inspection agencies shall not provide gratuities or free
services to suppliers. Inspection agencies shall not offer product warranties
on inspected material.
(7) Failure of an individual inspector
to follow proper procedures or failure
of an inspection agency to properly
train and supervise inspectors or follow
the appropriate RUS specifications
295
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00305
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.202
7 CFR Ch. XVII (1–1–14 Edition)
constitutes grounds for RUS debarment of said company from future inspection of RUS financed material
(8) Inspection agencies shall have and
maintain liability insurance in the
amount of $500,000 and a surety bond or
miscellaneous errors and omission insurance for consequential damages for
not less than $250,000. Upon request,
evidence of compliance to this requirement shall be forwarded to the agency.
The evidence shall be in the form of a
certificate of insurance or a Bond
signed by a representative of the insurance or Surety Bonding company and
include a provision that no change in,
or cancellation of, will be made without the prior written notice to Chairman, Technical Standards Committee
‘‘A’’ (Electric).
(9) Inspection agencies shall maintain their own laboratory that is properly equipped, and capable of completely analyzing the respective preservatives and retentions, and at a
minimum able to run referee methods.
This laboratory shall be independent
from any treating plant laboratory.
Independent Inspection Agencies may
use one central laboratory.
(10) Laminated materials manufactured for use on borrower systems shall
comply with manufacturing and quality control requirements specified in
ANSI O5.2 (incorporated by reference in
§ 1728.97). The product shall be marked
and certified.
(i) Laminated material shall be inspected in accordance with ANSI O5.2,
(incorporated by reference in § 1728.97).
(ii) Quality control of material shall
be performed to determine conformance with § 1728.201 of this part and
AITC 200, (incorporated by reference in
§ 1728.97).
(c) Quality control and inspection procedures for product acceptance. It is the
responsibility of the plant quality control designee to perform the following
procedures to ensure that a particular
lot of material conforms to the requirements of the applicable Agency
specification prior to treatment. After
the plant quality control designee has
performed these procedures, a particular lot of material shall be released
to the inspector for verification of conformance.
(1) Poles can be purchased under any
of the three purchase plans. These
plans are Insured Warranty Plan, Independent Inspection Plan, or a Quality
Assurance Plan. Under all of these
plans, all poles in a lot shall be inspected by the plant quality control
designee.
Under the Insured Warranty Plan and
a Quality Assurance Plan, the number
of poles inspected by a third party inspector may be less than every pole,
depending on the terms of the plans.
(i) Ample space and assistance shall
be provided by the treating plant for
handling and turning to ensure that
the surfaces of all items can be adequately inspected.
(ii) Under the Independent Inspection
Plan, all poles shall be inspected by the
Independent Inspector for conformance
to the requirements of Bulletin 1728F–
700 (incorporated by reference at
§ 1728.97). If a pole is rejected and the
cause of rejection is corrected, the rejected pole may be offered again for inspection as new material.
(iii) Dimensions, length, and circumference shall be measured by a standard steel tape to determine that they
are in agreement with the details for
class and length in the brand and butt
stamp. If it is obvious by visual comparison with a measured pole that the
brand information is correct, individual poles need not be measured.
Pole circumference dimensions made
prior to treatment shall govern acceptance. Reduction in dimension due to
treatment and shipping shall be not
more than 2 percent below the minimum for the pole class.
(iv) If 5 percent of the poles in a lot
offered for inspection are defective, the
inspector shall terminate the inspection. Re-examination of an entire lot
by plant quality control shall be required when the number of rejected
poles equals or exceeds 5 percent of the
lot inspected. All defective or nonconforming poles either shall be removed
from the lot or have their brands
marked out.
(v) Poles in a lot shall be inspected
for decay and all poles shall be of the
same seasoning condition. If the plant
quality control designee suspects that
decay is present, a slice from both ends
shall be cut for closer examination. If 3
296
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00306
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.202
percent of the inspected poles in a lot
show evidence of decay, the entire lot
shall be unconditionally rejected without further sorting.
(vi) Moisture content, when limited
by the purchaser, as stated on the purchaser’s purchase order, shall be measured by calibrated electronic moisture
meter. Calibration of the meter shall
include not only the zero settings for
the X and Y readings, but also two resistance standards for 12 and 22 percent
moisture content.
(vii) Material failing to conform for
moisture content may be retested upon
request after a recalibration of the instrument. The results of the second
test shall govern disposition of the lot.
(viii) Re-examination for any mechanical damage or deterioration and
for original acceptance shall be conducted on timber products not treated
within 10 days after original inspection.
(2) Crossarms can be purchased only
under either of two purchase plans.
These plans are the Independent Inspection Plan or Quality Assurance
Plans. Under the Independent Inspection Plan, crossarms are to be inspected prior to manufacture, during
manufacture, and after treatment.
Under a Quality Assurance Plan, crossarms are inspected according to the
terms of the quality assurance program
acceptable to Rural Utilities Service.
(i) Inspection prior to treatment
shall include:
(A) Surface inspection of all ends of
all arms. This is usually done on the
stacks of arms prior to manufacture.
Particular attention shall be paid to
defects commonly found in the ends,
such as compression wood, red heart
and other forms of decay, shakes,
splits, through checks, scantiness, honeycomb, and low density, determined
by rings per inch and percent of
summerwood. All non-conforming arms
shall be rejected. Whenever the number
of nonconforming arms is found to exceed 0.5 percent of the lot or one arm,
whichever is greater, the entire lot
shall be rejected for excess number of
defective ends. After the producer has
removed or marked out the defective
material, the arms may be resubmitted
for inspection.
(B) Surface inspection of the lengthwise sides performed on a random representative sample. The sample size
shall equal 20 percent of a lot size or
200 arms, whichever is smaller. The inspector shall examine side surfaces as
they are slowly rotated. When necessary, the rotation may be stopped for
closer inspection. All non-conforming
arms shall be rejected. Whenever the
number of nonconforming arms is
found to exceed 2 percent of the sample
size, the entire lot shall be rejected.
After the producer has removed or
marked out the defective material, the
arms may be resubmitted for inspection.
(C) Check of moisture content of the
random sample by a calibrated moisture meter.
(D) Check of crossarm dimensions of
the random sample measured after surfacing.
(ii) Inspection during manufacture
shall consist of:
(A) Checking bolt and insulator pin
holes for squareness and excessive
splintering;
(B) Checking brands for completeness, location, and legibility; and
(C) Checking arms for conformance.
(iii) Under the Independent Inspection Plan, there shall be a final inspection after treatment for preservative
retention and penetration and for damage.
(3) Structural glued laminated timber shall be tested and inspected in accordance with AITC 200 (incorporated
by reference in § 1728.97). Grade of lumber shall be inspected by a qualified
grader for specified quality, so marked.
Adhesives used for all structural arms
shall meet requirements of ANSI O5.2
(incorporated by reference at § 1728.97)
paragraph 5.2. Melamine urea adhesives
shall not be used. End joint spacing
and limitations shall be in accordance
with ANSI O5.2.
(d) Preservatives. (1) Creosote shall
conform to the requirements of AWPA
P1/P13–06 (incorporated by reference in
§ 1728.97) when analyzed by AWPA A–06,
(incorporated by reference in § 1728.97)
sections 2, 3, 4, either 5 or 9, and 6, as
follows:
(i) Each occasional charge; and
297
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00307
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.202
7 CFR Ch. XVII (1–1–14 Edition)
(ii) The first charge and one of every
five charges randomly selected in consecutive charges shall be analyzed.
(2) Solutions of waterborne preservatives shall be analyzed for components
in accordance with AWPA A2–08 (incorporated by reference in § 1728.97)) or
AWPA A9–01 (incorporated by reference
in § 1728.97) and shall meet the requirements of AWPA P5–08 (incorporated by
reference in § 1728.97) for composition.
AWPA A2–08 shall be used as a referee
method.
(3) Pentachlorophenol shall contain
not less than 95 percent chlorinated
phenols and should conform to AWPA
P8–08 (incorporated by reference in
§ 1728.297), in hydrocarbon solvent
AWPA P9–06, Type A (incorporated by
reference in § 1728.97).
(4) Copper Naphthenate in hydrocarbon solvent AWPA P9–06 Type A (incorporated by reference in § 1728.97),
shall contain not less than 6 percent
nor more than 8 percent copper in the
form of Copper Naphthenate and shall
conform to AWPA P8–08 (incorporated
by reference in § 1728.97), when analyzed
in accordance with AWPA A5–05 (incorporated by reference in § 1728.97).
(e) Plant facilities and inspection during treatment. (1) Manufacturing and
treating plant facilities shall conform
to paragraph 3, AWPA M3–05 (incorporated by reference in § 1728.97), Pressure plants shall be equipped with recording instruments to register time,
pressure, temperature and vacuum during each cycle of treatment. Pressure
plants shall also be equipped with indicating thermometers and pressure and
vacuum gauges to check the accuracy
of the recorders. Work tanks shall be
equipped with a thermometer. Thermal
treating vats shall be equipped with a
time and temperature recorder and
with an indicating thermometer. Temperature recording devices are not
mandatory for plants treating exclusively with waterborne preservatives.
(2) Temperature and humidity readings throughout the kiln shall be recorded on a recording chart and
verified by observation of direct reading equipment. Gauges and recording
equipment shall be calibrated annually.
(3) Recording instruments shall be
checked with calibrated indicating
gauges and thermometers, per AWPA
M3–05 (incorporated by reference in
§ 1728.97). Inaccuracies shall be referred
to the treating plant for prompt correction. If an inaccuracy which indicates error resulting in non-compliance
with this specification indicating possible damage to the material, the inspector shall reject the charge.
(f) Results of treatment. (1) Poles shall
be tested for retention and penetration
by means of a calibrated increment
borer 0.2 inches ±0.02 inches in diameter in accordance with procedures in
AWPA M2–07 (incorporated by reference in § 1728.97). Under the Independent Inspection Plan, all treating
charges shall be tested for retention
and penetration. Plant quality control
and independent inspection shall do
their analyses separately. Under the
Insured Warranty Plan and Quality Assurance Plans, the frequency of testing
retention and penetration may vary according to the agency approved plan.
(i) Unless otherwise specified, borings
shall be taken approximately 1 foot
above the face brand to 1 foot below
the face brand. For pressure treated
Western Red Cedar and all butt treated
poles, borings shall be taken approximately 1 foot below groundline.
(ii) Penetration compliance shall be
determined in accordance with AWPA
A3–08 (incorporated by reference in
§ 1728.97). Chrome Azurol S and PentaCheck shall be used to determine penetration of copper containing preservatives and penta, respectively.
(2) Retention sampling shall be when
there are 20 or more poles in the treating charge, the retention sample for
creosote shall consist of 20 assay zones
from southern pine and Douglas-fir
poles. All poles in charges with fewer
than 20 poles shall be bored once.
Charges with less than 15 poles shall be
bored once and bored again on a random basis to obtain a minimum of 15
assay zones.
(i) Retention samples shall be taken
from 20 poles in charges of 20 or more
poles.
(ii) Retention samples for Alaska yellow, western red, and northern white
cedars shall consist of a minimum of 30
assay zones for creosote and waterborne preservatives. For penta charges
of fewer than 30 poles, the sample shall
298
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00308
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.202
contain the assay zone from each pole
in the lot.
(iii) Retention samples shall consist
of borings, representative of pole volumes for each class and length in the
Number of poles
charge. Further selection and marking
of poles of mixed seasoning, volume,
and location on the tram shall be made
as illustrated in the following table:
Class/length
% of total
volume
Vol. in cu. ft.
Number of
borings
27 ..........................................................................................
26 ..........................................................................................
11 ..........................................................................................
55 * ........................................................................................
7/30
4/35
5/35
6/35
232
447
163
704
15
29
10
46
Total ........................................................................
........................
1,526
........................
3
6
2
9
* If a portion of these poles were green and some partially seasoned, then the number of borings should reflect the approximate percentage of each.
(iv) When material in a lot consists
of fewer pieces than the designated
minimum number of samples for assay,
additional borings shall be taken so as
to make up at least the minimum sample, and in such manner that the sample is representative of the lot of material with respect to any variations in
size, seasoning condition, or other features that might affect the results of
treatment.
(v) Analyses for preservative retention shall be performed as follows:
(A) Creosote retention shall be analyzed by AWPA A6–01 (incorporated by
reference in § 1728.97);
(B) Penta retention shall be analyzed
by AWPA A5–05 (incorporated by reference in § 1728.97) or AWPA A9–01 (incorporated by reference at § 1728.97).
Copper pyridine method is required
when timber may have been in contact
with salt water and for all species native to the Pacific coast region, unless
the raw material invoice specifically
states that the material either has not
been in contact with salt water or has
been shown by analysis to have contained no additional chlorides before
treating;
(C) Copper Naphthenate retention
shall be analyzed by tests in accordance with AWPA A5–05 (incorporated
by reference in § 1728.97) or AWPA A9–01
(incorporated by reference in § 1728.97);
(D) Waterborne preservatives retention shall be analyzed by tests in accordance with AWPA A2–08 (incorporated by reference in § 1728.97),
AWPA A7–04 (incorporated by reference
in § 1728.97); or AWPA A9–01 (incorporated by reference in § 1728.97); and,
(E) Prior to unloading a tram, the inspectors may take their own samples
and analyze them concurrently with
the quality control designee, but each
shall work independently, and quality
control data shall be presented before
acceptance of the charge.
(3) The penetration sampling of poles
shall conform as follows:
(i) Group A poles consist of poles
with a circumference of 37.5 inches or
less at 6 feet from butt.
(A) Bore 20 Group A poles or 20 percent of the poles, whichever is greater.
Accept if 100 percent of the sample conform; otherwise, bore all poles.
(B) Re-treat the charge if more than
15 percent of the borings are found to
be nonconforming.
(C) Re-treat all nonconforming poles
if 15 percent or fewer fail the requirement.
(ii) Group B poles consist of poles
with circumference greater than 37.5
inches at 6 feet from the butt.
(A) For Group B poles 45 feet and
shorter, bore each pole and re-treat
only those found to be nonconforming,
unless more than 15 percent fail; in
that case, re-treat the entire lot.
(B) For Group B 50 feet and longer,
bore each pole twice at 90 degrees apart
around the pole and accept only those
poles conforming to the penetration requirement in both borings. All nonconforming poles may be re-treated only
twice.
(iii) All bored holes (nominal 0.2 of an
inch diam. bit) shall be promptly filled
with treated, tight-fitting wood plugs.
(4) Under the Independent Inspection
Plan, all treated charges of crossarms
299
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00309
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.202
7 CFR Ch. XVII (1–1–14 Edition)
shall be tested for retention and penetration. Plant quality control inspectors and independent inspectors shall
do their analyses independently. Under
the Quality Assurance Plans, the frequency of testing retention and penetration may vary according to the
plan.
(i) The penetration and retention
sample shall consist of 20 (48 for creosote) outer 6⁄10 of an inch for Douglasfir and 1 inch for Southern Yellow Pine
zones from borings taken from any face
except the top face at a location as
close to the end as possible being at
least 3 inches from the end of the arm
and no closer than 3 inches from the
edge of any holes. For laminated material, borings shall be taken from laminates on a random basis.
(ii) Preservative penetration shall be
tested by taking not less than 20 borings from 20 crossarms in each charge,
determined in accordance with AWPA
A3–08 (incorporated by reference in
§ 1728.97). Chrome Azurol S and PentaCheck shall be used to determine penetration of copper containing preservatives and penta, respectively.
(5) Laminated material shall be
checked
for
any
evidence
of
delamination due to treatment and for
the identifying quality stamp of AITC
or American Plywood Association
(APA).
(6) If used for analysis, x-ray fluorescence instruments (XRF) shall be accurate and reliable, and they shall generate reproducible results. Instruments
shall have thorough instructions which
should include recommendations on
drying techniques, equipment, and density calculations. These drying recommendations shall be followed when
using XRF instruments.
(7) To check the precision and accuracy of the in-plant x-ray fluorescence
units (XRF) being used by producers,
at least once monthly the independent
inspector shall take a retention sample
previously analyzed in the producer’s
laboratory and rerun it in the inspection agency’s own laboratory. This
sample shall be run utilizing either the
XRF or recognized referee method for
the given preservative. If the analytical results are within ±5% of retention
value that was previously obtained on
the sample using the plant’s XRF unit,
the plant instrument needs no further
calibration. All XRF units maintained
by independent agencies as part of
their required laboratories shall be
calibrated at least quarterly either by
the referee method for each preservative treatment being analyzed by said
agency or by comparison with a set of
graduated treated wood standards.
(8) Each independent inspector and
plant quality control personnel that
use XRF instruments, shall be properly
trained in the analysis of treated wood
and preservatives under the supervision of a competent instructor. Proof
of training shall be kept on file.
(g) Product acceptance. Under the
Independent Inspection Plan, the inspector shall signify acceptance by
marking each piece of accepted material with a clear, legible hammer
stamp in one end prior to treatment
and in the other end after treatment.
The inspector shall personally mark
each piece, and shall not delegate this
responsibility to another person.
(1) Charge Inspection Reports.
(2) Inspection Reports shall include
the following:
(i) Total pieces offered by the producer, number of pieces rejected and
cause of rejection;
(ii) Conditioning details of the material prior to treatment;
(iii) Copy of preservative analysis by
preservative supplier;
(iv) The details of treatment; and
(v) The results of treatment. Results
shall include the following:
(A) The depth of penetration for each
sample and a summary of all poles rejected for insufficient penetration;
(B) Separate worksheets for retention analyses, prepared by quality control designee and independent inspector.
(3) On each inspection report the
independent inspector and the plant
quality control designee shall certify,
in writing, that the material listed on
the report has been inspected before
and after treatment, and that the preservative used was analyzed in accordance with the requirements of this section.
(4) Each inspector or inspection agency shall permanently retain for a period of 1 year a copy or transcript of
each report of inspection, together
300
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00310
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.204
with laboratory worksheets covering
retention by assay and preservative
analyses for the purchaser, and on request shall furnish a copy or transcript
of any of these reports to the Chairman, Technical Standards Committee
‘‘A’’, Electric Staff Division, Rural
Utilities Service, Washington, DC
20250–1569.
(h) Charge numbers on re-treat poles.
(1) The letter ‘‘R’’ shall be added to the
original charge number in the butts of
all poles that are re-treated for insufficient penetration or retention of preservative.
(2) All poles that fail to meet treatment requirements after two re-treatments shall be permanently rejected.
(i) Safety provisions. Poles intended
for agency borrowers shall not be inspected when, in the opinion of the inspector, unsafe conditions are present.
APPENDIX A TO § 1728.202—INSPECTOR’S
QUALIFICATIONS
Inspection agencies should see that inspectors assigned to the inspection of timber
products and treatment for borrowers are
competent and experienced. In general, any
of the following examples are considered as
minimum qualifying experience before a new
inspector may be permitted to inspect timber products for borrowers:
(a) Three years’ experience as an inspector
of timber and the preservative treatment of
timber; or
(b) Three years’ experience in timber treating plant quality control work; or
(c) Under the direct, on site, supervision of
an experience, well-qualified inspector, the
prospective inspector shall have performed
the following:
(1) Inspected at least 10,000 poles and/or
crossarms ‘‘in the white.’’
(2) Checked preservative penetration results on at least 10,000 poles and crossarms;
(3) Made at least 100 wood assays for preservative retention;
(4) Made at lease 25 analyses of each type
preservative used on material the person is
assigned to inspect; and
(d) In both (a) and (b) of this Appendix A,
the experience should be not less than that
required in (c).
(e) Inspectors experienced in the inspections of one product, such as poles, should
not be qualified to inspect another product,
such as crossarms, until the above experience is gained for each respective product.
(f) The inspector should be especially well
informed in wood preservation and the operation of a timber treating plant, and be competent in preservative analysis and other
laboratory work.
(g) In all cases, an inspector should be
thoroughly instructed in the application of
the specifications and the standards pertaining thereto before being permitted to
independently inspect timber products and
the treatments applied to them. Knowledge
of these specifications and standards, as well
as the inspector’s proficiency, may be
checked routinely by members of the agency
staff.
[76 FR 36965, June 24, 2011, as amended at 77
FR 29537, May 18, 2012]
§ 1728.203
[Reserved]
§ 1728.204 Electric standards and specifications for materials and construction.
(a) General specifications. This section
details requirements for 15 and 25 kV
single phase, V-phase, and three-phase
power cables for use on 12.5/7.2 kV (15
kV rated) and 24.9/14.4 kV (25 kV rated)
underground distribution systems with
solidly multi-grounded neutral. Cable
complying with this specification shall
consist of solid or strand-filled conductors which are insulated with tree-retardant cross-linked polyethylene (TR–
XLPE) or ethylene propylene rubber
(EPR), with concentrically wound copper neutral conductors covered by a
nonconducting or semiconducting jacket. 35 kV rated cables may be used in
24.9/14.4 kV application where additional insulation is desired.
(1) The cable may be used in singlephase, two (V)-phase, or three-phase
circuits.
(2) Acceptable conductor sizes are:
No. 2 AWG (33.6 mm2) through 1000
kcmil (507 mm2) for 15 kV cable, No. 1
AWG (42.4 mm2) through 1000 kcmil (507
mm2) for 25 kV, and 1/0 (53.5 mm2)
through 1000 kcmil (507 mm2) for 35 kV
cable.
(3) Except where provisions therein
conflict with the requirements of this
specification, the cable shall meet all
applicable provisions of ANSI/ICEA S–
94–649–2004 (incorporated by reference
in § 1728.97). Where provisions of the
ANSI/ICEA specification conflict with
this section, § 1728.204 shall apply.
(b) Definitions. As used in this section:
Agency refers to the Rural Utilities
Service (RUS), an agency of the United
States Department of Agriculture’s
301
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00311
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.204
7 CFR Ch. XVII (1–1–14 Edition)
(USDA), hereinafter referred to as the
Agency.
EPR Insulating Compound is a mixture of ethylene propylene base resin
and selected ingredients.
TR–XLPE Insulating Compound is a
tree
retardant
crosslinked
polyethylene (TR–XLPE) insulation compound containing an additive, a polymer modification filler, which helps to
retard the growth of electrical trees in
the compound.
(c) Phase conductors. (1) Central phase
conductors shall be copper or aluminum as specified by the borrower
within the limit of § 1728.204(a)(2).
(2) Central copper phase conductors
shall be annealed copper in accordance
with ASTM B 3–01 (incorporated by reference in § 1728.97). Concentric-laystranded phase conductors shall conform to ASTM B 8–04 (incorporated by
reference in § 1728.97) for Class B
stranding. Compact round concentriclay-stranded phase conductors shall
conform to ASTM B 496–04 (incorporated by reference in § 1728.97). Combination unilay stranded phase conductors shall conform to ASTM B 787/B
787M–04 (incorporated by reference in
§ 1728.97). Compact round atranded copper conductors using single input wire
construction shall conform to ASTM
B835–04 (incorporated by reference in
§ 1728.97). Compressed round stranded
copper conductors, hard, medium-hard,
or soft using single input wire construction shall conform to ASTM B902–
04a (incorporated by reference in
§ 1728.97). If not specified, stranded
phase conductors shall be Class B
stranded.
(3) Central aluminum phase conductors shall be one of the following:
(i) Solid: Aluminum 1350 H12 or H22,
H14 or H24, H16 or H26, in accordance
with ASTM B 609/B 609M–99 (incorporated by reference in § 1728.97).
(ii) Stranded: Aluminum 1350 H14 or
H24, H142 or H242, H16, or H26, in accordance with ASTM B 609/B 609M–99
(incorporated by reference in § 1728.97)
or Aluminum 1350–H19 in accordance
with ASTM B 230/B 230M–07 (incorporated by reference in § 1728.97). Concentric-lay-stranded (includes compacted and compressed) phase conductors shall conform to ASTM B 231/B
231M–04 (incorporated by reference in
§ 1728.97) for Class B stranding. Compact
round
concentric-lay-stranded
phase conductors shall conform to
ASTM B 400–08 (incorporated by reference in § 1728.97). Combination unilay
stranded aluminum phase conductors
shall conform to ASTM B 786–08 (incorporated by reference in § 1728.97). If not
specified, stranded phase conductors
shall be class B stranded.
(4) The interstices between the
strands of stranded conductors shall be
filled with a material designed to fill
the interstices and to prevent the longitudinal migration of water that
might enter the conductor. This material shall be compatible with the conductor and conductor shield materials.
The surfaces of the strands that form
the outer surface of the stranded conductor shall be free of the strand fill
material. Compatibility of the strand
fill material with the conductor shield
shall be tested and shall be in compliance with ICEA T–32–645–93 (incorporated by reference in § 1728.97). Water
penetration shall be tested and shall be
in compliance with ANSI/ICEA T–31–
610–2007 (incorporated by reference in
§ 1728.97).
(5) The center strand of stranded conductors shall be indented with the
manufacturer’s name and year of manufacture at regular intervals with no
more than 12 inches (0.3 m) between
repetitions.
(d) Conductor shield (stress control
layer). A non-conducting (for discharge
resistant EPR) or semi-conducting
shield (stress control layer) meeting
the applicable requirements of ANSI/
ICEA S–94–649–2004 (incorporated by
reference in § 1728.97) shall be extruded
around the central conductor. The minimum thickness at any point shall be
in accordance with ANSI/ICEA S–94–
649–2004. The void and protrusion limits
on the conductor shield shall be in
compliance with ANSI/ICEA S–94–649–
2004. The shield shall have a nominal
operating temperature equal to, or
higher than, that of the insulation.
(e) Insulation. (1) The insulation shall
conform to the requirements of ANSI/
ICEA S–94–649–2004 (incorporated by
reference in § 1728.97) and may either be
tree
retardant
cross-linked
polyethylene (TR–XLPE) or ethylene propylene rubber (EPR), as specified by
302
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00312
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1728.204
the borrower. The void and protrusion
limits on the insulation shall be in
compliance with ANSI/ICEA S–94–649–
2004.
(2) The thickness of insulation shall
be as follows:
ABLE RATED VOLTAGE
Cable rated voltage
Nominal thickness
Minimum thickness
15 kV ........................................
25 kV ........................................
35 kV ........................................
220 mils (5.59 mm) ..................
260 mils (6.60 mm) ..................
345 mils (8.76 mm) ..................
210 mils (5.33 mm) ..................
245 mils (6.22 mm) ..................
330 mils (8.38 mm) ..................
(f) Insulation shield. (1) A semi-conducting thermosetting polymeric layer
meeting the requirements of ANSI/
ICEA S–94–649–2004 (incorporated by
reference in § 1728.97) shall be extruded
tightly over the insulation to serve as
an electrostatic shield and protective
covering. The shield compound shall be
compatible with, but not necessarily
the same material composition as, that
of the insulation (e.g., cross-linked polyethylene shield may be used with EPR
insulation). The void and protrusion
limits on the semi-conducting shields
shall be in compliance with the ANSI/
ICEA S–94–649–2004.
(2) The thickness of the extruded insulation shield shall be in accordance
with ANSI/ICEA S–94–649–2004 (incorporated by reference in § 1728.97).
(3) The shield shall be applied such
that all conducting material can be
easily removed without the need for externally applied heat. Stripping tension values shall be 3 through 18 pounds
(1.36 through 8.16 kg) for TR–XLPE and
EPR discharge free cables. Discharge
resistant cables shall have strip tension of 0 through 18 pounds (0 through
8.16 kg).
(4) The insulation shield shall meet
all applicable tests of ANSI/ICEA S–94–
649–2004 (incorporated by reference in
§ 1728.97).
(g) Concentric neutral conductor. (1)
Concentric neutral conductor shall
consist of annealed round, uncoated
copper wires in accordance with ASTM
B 3–01 (incorporated by reference in
§ 1728.97) and shall be spirally wound
over the shielding with uniform and
equal spacing between wires. The concentric neutral wires shall remain in
continuous intimate contact with the
extruded insulation shield. Full neutral
is required for single phase and 1⁄3 neutral for three phase applications unless
Maximum thickness
250 mils (6.35 mm).
290 mils (7.37 mm).
375 mils (9.53 mm).
otherwise specified. The minimum wire
size for the concentric neutral is 16
AWG (1.32 mm2).
(2) When a strap neutral is specified
by the borrower, the neutral shall consist of uncoated copper straps applied
concentrically over the insulation
shield with uniform and equal spacing
between straps and shall remain in intimate contact with the underlying extruded insulation shield. The straps
shall not have sharp edges. The thickness of the flat straps shall be not less
than 20 mils (0.5 mm).
(h) Overall outer jacket. (1) An electrically nonconducting (insulating) or
semi-conducting outer jacket shall be
applied directly over the concentric
neutral conductors.
(2) The jacket material shall fill the
interstice area between conductors,
leaving no voids. The jacket shall be
free stripping. The jacket shall have
three red stripes longitudinally extruded into the jacket surface 120°
apart.
(3) Nonconducting jackets shall consist of low density, linear low density,
medium density, or high density HMW
black polyethylene (LDPE, LLDPE,
MDPE, HDPE) compound meeting the
requirements of ANSI/ICEA S–94–649–
2004 (incorporated by reference in
§ 1728.97) and ASTM D 1248–05 (incorporated by reference in § 1728.97) for
Type I, Class C, Category 4 or 5, Grade
J3 before application to the cable. Polyvinyl chloride (PVC) and chlorinated
polyethylene (CPE) jackets are not acceptable.
(4) Semi-conducting jackets shall
have a maximum radial resistivity of
100 ohm-meter and a maximum moisture vapor transmission rate of 1.5 g/
m2/24 hours at 38 °C (100 °F) and 90 percent relative humidity in accordance
303
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00313
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
§ 1728.204
7 CFR Ch. XVII (1–1–14 Edition)
with ASTM E 96/E96M–05 (incorporated
by reference in § 1728.97).
(5) The minimum thickness of the
jacket over metallic neutral wires or
straps shall comply with the thickness
specified in ANSI/ICEA S–94–649–2004
(incorporated by reference in § 1728.97).
(i) Tests. (1) As part of a request for
Agency consideration for acceptance
and listing, the manufacturer shall
submit certified test data results to
the Agency that detail full compliance
with ANSI/ICEA S–94–649–2004 (incorporated by reference in § 1728.97) for
each cable design.
(i) Test results shall confirm compliance with each of the material tests,
production sampling tests, tests on
completed cable, and qualification
tests included in ANSI/ICEA S–94–649–
2004 (incorporated by reference in
§ 1728.97).
(ii) The testing procedure and frequency of each test shall be in accordance with ANSI/ICEA S–94–649–2004 (incorporated by reference in § 1728.97).
(iii) Certified test data results shall
be submitted to the Agency for any
test, which is designated by ANSI/ICEA
S–94–649–2004 (incorporated by reference in § 1728.97) as being ‘‘for Engineering Information Only,’’ or any
similar designation.
(2) Partial discharge tests. Manufacturers shall demonstrate that their cable
is not adversely affected by excessive
partial discharge. This demonstration
shall be made by completing the procedures described in paragraphs (i)(2)(i)
and (i)(2)(ii) of this section.
(i) Each shipping length of completed
cable shall be tested and have certified
test data results available indicating
compliance with the partial discharge
test requirements in ANSI/ICEA S–94–
649–2004 (incorporated by reference in
§ 1728.97).
(ii) Manufacturers shall test production samples and have available certified test data results indicating compliance with ASTM D 2275–01 (incorporated by reference in § 1728.97) for discharge resistance as specified in the
ANSI/ICEA S–94–649–2004 (incorporated
by reference in § 1728.97). Samples of insulated cable shall be prepared by either removing the overlying extruded
insulation shield material, or using insulated cable before the extruded insu-
lation shield material is applied. The
sample shall be mounted as described
in ASTM D 2275–01 and shall be subjected to a voltage stress of 250 volts
per mil of nominal insulation thickness. The sample shall support this
voltage stress, and not show evidence
of degradation on the surface of the insulation for a minimum of 100 hours.
The test shall be performed at least
once on each 50,000 feet (15,240 m) of
cable produced, or major fractions
thereof, or at least once per insulation
extruder run.
(3) Jacket tests. Tests described in
paragraph (i)(3)(i) of this section shall
be performed on cable jackets from the
same production sample as in paragraphs (i)(2)(i) and (i)(2)(ii) of this section.
(i) A Spark Test shall be performed
on nonconducting jacketed cable in accordance with ANSI/ICEA S–94–649–2004
(incorporated by reference in § 1728.97)
on 100 percent of the completed cable
prior to its being wound on shipping
reels. The test voltage shall be 4.5 kV
AC for cable diameters <1.5 inches and
7.0 kV for cable diameters >1.5 inches,
and shall be applied between an electrode at the outer surface of the nonconducting (insulating) jacket and the
concentric neutral for not less than
0.15 second.
(ii) [Reserved]
(4) Frequency of sample tests shall be
in accordance with ANSI/ICEA S–94–
649–2004 (incorporated by reference in
§ 1728.97).
(5) If requested by the borrower, a
certified copy of the results of all tests
performed in accordance with this section shall be furnished by the manufacturer on all orders.
(j) Miscellaneous. (1) All cable provided under this specification shall
have suitable markings on the outer
surface of the jacket at sequential intervals not exceeding 2 feet (0.61 m).
The label shall indicate the name of
the manufacturer, conductor size, type
and thickness of insulation, center conductor material, voltage rating, year of
manufacture, and jacket type. There
shall be no more than 6 inches (0.15 m)
of unmarked spacing between texts
label sequence. The jacket shall be
marked with the symbol required by
Rule 350G of the National Electrical
304
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00314
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
Rural Utilities Service, USDA
§ 1730.3
Safety Code and the borrower shall
specify any markings required by local
safety codes. This is in addition to extruded red stripes required in this section.
(2) Watertight seals shall be applied
to all cable ends to prevent the entrance of moisture during transit or
storage. Each end of the cable shall be
firmly and properly secured to the reel.
(3) Cable shall be placed on shipping
reels suitable for protecting it from
damage during shipment and handling.
Reels shall be covered with a suitable
covering to help provide physical protection to the cable.
(4) A durable label shall be securely
attached to each reel of cable. The
label shall indicate the purchaser’s
name and address, purchase order number, cable description, reel number,
feet of cable on the reel, tare and gross
weight of the reel, and beginning and
ending sequential footage numbers.
[77 FR 19529, Apr. 2, 2012]
PART 1730—ELECTRIC SYSTEM
OPERATIONS AND MAINTENANCE
Subpart A—General
Sec.
1730.1 Introduction.
1730.2 RUS policy.
1730.3 RUS addresses.
1730.4 Definitions.
1730.5–1730.19 [Reserved]
Subpart B—Operations and Maintenance
Requirements
1730.20 General.
1730.21 Inspections and tests.
1730.22 Borrower analysis.
1730.23 Review rating summary, RUS Form
300.
1730.24 RUS review and evaluation.
1730.25 Corrective action.
1730.26 Certification.
1730.27 Vulnerability and Risk Assessment
(VRA).
1730.28 Emergency Restoration Plan (ERP).
1730.29 Grants and Grantees.
1730.30–1730.59 [Reserved]
APPENDIX A TO SUBPART B—REVIEW RATING
SUMMARY, RUS FORM 300
1730.62 Definitions.
1730.63 IDR policy criteria.
1730.64 Power purchase agreements.
1730.65 Effective dates.
1730.66 Administrative waiver.
1730.67–99 [Reserved]
1730.100 OMB Control Number.
AUTHORITY: 7 U.S.C. 901 et seq., 1921 et seq.,
6941 et seq.
SOURCE: 63 FR 3450, Jan. 23, 1998, unless
otherwise noted.
Subpart A—General
§ 1730.1
Introduction.
(a) This part contains the policies
and procedures of the Rural Utilities
Service (RUS) related to electric borrowers’ operation and maintenance
practices and RUS’ review and evaluation of such practices.
(b) The policies and procedures included in this part apply to all electric
borrowers (both distribution borrowers
and power supply borrowers) and are
intended to clarify and implement certain provisions of the security instrument and loan contract between RUS
and electric borrowers regarding operations and maintenance. This part is
not intended to waive or supersede any
provisions of the security instrument
and loan contract between RUS and
electric borrowers.
(c) The Administrator may waive, for
good cause, on a case by case basis, certain requirements and procedures of
this part.
§ 1730.2
RUS policy.
It is RUS policy to require that all
property of a borrower be operated and
maintained properly in accordance
with the requirements of each borrower’s loan documents. It is also RUS
policy to provide financial assistance
only to borrowers whose operations
and maintenance practices and records
are satisfactory or to those who are
taking corrective actions expected to
make their operations and maintenance practices and records satisfactory to RUS.
Subpart C—Interconnection of Distributed
Resources
§ 1730.3
1730.60
1730.61
(a) Persons wishing to obtain forms
referred to in this part should contact:
General.
RUS policy.
RUS addresses.
305
VerDate Mar<15>2010
10:56 Mar 05, 2014
Jkt 232022
PO 00000
Frm 00315
Fmt 8010
Sfmt 8010
Q:\07\7V11.TXT
ofr150
PsN: PC150
| File Type | application/pdf |
| File Modified | 2014-03-17 |
| File Created | 2014-03-17 |