Fac-501-wecc-1

WECC Standard FAC-501-WECC-1 – Transmission Maintenance

A. Introduction
1. Title:

Transmission Maintenance

2. Number:

FAC-501-WECC-1

3. Purpose:

To ensure the Transmission Owner of a transmission path identified in the table
titled “Major WECC Transfer Paths in the Bulk Electric System” including
associated facilities has a Transmission Maintenance and Inspection Plan (TMIP);
and performs and documents maintenance and inspection activities in accordance
with the TMIP.

4. Applicability
4.1. Transmission Owners that maintain the transmission paths in the most current table titled
“Major WECC Transfer Paths in the Bulk Electric System” provided at:
http://www.wecc.biz/Standards/Approved%20Standards/Supporting%20Tables/Table%20Ma
jor%20Paths%204-28-08.pdf
5. Effective Date: On the first day of the first quarter, after applicable regulatory approval.

B. Requirements
R.1. Transmission Owners shall have a TMIP detailing their inspection and maintenance
requirements that apply to all transmission facilities necessary for System Operating Limits
associated with each of the transmission paths identified in table titled “Major WECC
Transfer Paths in the Bulk Electric System.” [Violation Risk Factor: Medium] [Time
Horizon: Long-term Planning]
R1.1.

Transmission Owners shall annually review their TMIP and update as required.
[Violation Risk Factor: Medium] [Time Horizon: Long-term Planning]

R.2. Transmission Owners shall include the maintenance categories in Attachment 1-FAC-501WECC-1 when developing their TMIP. [Violation Risk Factor: Medium] [Time Horizon:
Operations Assessment]
R.3. Transmission Owners shall implement and follow their TMIP. [Violation Risk Factor:
Medium] [Time Horizon: Operations Assessment]
C. Measures
M1. Transmission Owners shall have a documented TMIP per R.1.
M1.1

Transmission Owners shall have evidence they have annually reviewed their TMIP
and updated as needed.

M2. Transmission Owners shall have evidence that their TMIP addresses the required maintenance
details of R.2.
M3. Transmission Owners shall have records that they implemented and followed their TMIP as
required in R.3. The records shall include:
1. The person or crew responsible for performing the work or inspection,
2. The date(s) the work or inspection was performed,
3. The transmission facility on which the work was performed, and

Adopted by Board of Trustees: October 29, 2008

1

WECC Standard FAC-501-WECC-1 – Transmission Maintenance
4. A description of the inspection or maintenance performed.
D. Compliance
1. Compliance Monitoring Process
1.1

Compliance Monitoring Responsibility
Compliance Enforcement Authority

1.2

Compliance Monitoring Period
The Compliance Enforcement Authority may use one or more of the following methods
to assess compliance:
- Self-certification conducted annually
- Spot check audits conducted anytime with 30 days notice given to prepare
- Periodic audit as scheduled by the Compliance Enforcement Authority
- Investigations
- Other methods as provided for in the Compliance Monitoring Enforcement Program
The Reset Time Frame shall be one year.

1.3

Data Retention
The Transmission Owners shall keep evidence for Measure M1 through M3 for three
years plus the current year, or since the last audit, whichever is longer.

1.4

Additional Compliance Information
No additional compliance information.

2. Violation Severity Levels
2.1. Lower: There shall be a Lower Level of non-compliance if any of the following
conditions exist:
2.1.1

The TMIP does not include associated Facilities for one of the Paths identified in
Attachment 1 FAC-501-WECC-1 as required by R.1 but Transmission Owners are
performing maintenance and inspection for the missing Facilities.

2.1.2

Transmission Owners did not review their TMIP annually as required by R.1.1.

2.1.3

The TMIP does not include one maintenance category identified in Attachment 1
FAC-501-WECC-1 as required by R.2 but Transmission Owners are performing
maintenance and inspection for the missing maintenance categories.

2.1.4

Transmission Owners do not have maintenance and inspection records as required
by R.3 but have evidence that they are implementing and following their TMIP.

2.2. Moderate: There shall be a Moderate Level of non-compliance if any of the following
conditions exist:
2.2.1

The TMIP does not include associated Facilities for two of the Paths identified in
the most current Table titled “Major WECC Transfer Paths in the Bulk Electric
System” as required by R.1 and Transmission Owners are not performing
maintenance and inspection for the missing Facilities.

2.2.2

The TMIP does not include two maintenance categories identified in Attachment 1
FAC-501-WECC-1 as required by R.2 but Transmission Owners are performing

Adopted by Board of Trustees: October 29, 2008

2

WECC Standard FAC-501-WECC-1 – Transmission Maintenance
maintenance and inspection for the missing maintenance categories.
2.2.3

Transmission Owners are not performing maintenance and inspection for one
maintenance category identified in Attachment 1 FAC-501-WECC-1 as required in
R3.

2.3. High: There shall be a High Level of non-compliance if any of the following
condition exists:
2.3.1 The TMIP does not include associated Facilities for three of the Paths identified in
the most current Table titled “Major WECC Transfer Paths in the Bulk Electric
System” as required by R.1 and Transmission Owners are not performing
maintenance and inspection for the missing Facilities.
2.3.2 The TMIP does not include three maintenance categories identified in Attachment 1
FAC-501-WECC-1 as required by R.2 but Transmission Owners are performing
maintenance and inspection for the missing maintenance categories.
2.3.3 Transmission Owners are not performing maintenance and inspection for two
maintenance categories identified in Attachment 1 FAC-501-WECC-1 as required in
R3.
2.4. Severe: There shall be a Severe Level of non-compliance if any of the following
condition exists:
2.4.1 The TMIP does not include associated Facilities for more than three of the Paths
identified in the most current Table titled “Major WECC Transfer Paths in the Bulk
Electric System” as required by R.1 and Transmission Owners are not performing
maintenance and inspection for the missing Facilities.
2.4.2 The TMIP does not exist or does not include more than three maintenance categories
identified in Attachment 1 FAC-501-WECC-1 as required by R.2 but Transmission
Owners are performing maintenance and inspection for the missing maintenance
categories.
2.4.3 Transmission Owners are not performing maintenance and inspection for more
than two maintenance categories identified in Attachment 1 FAC-501-WECC-1 as
required in R3.
Version History – Shows Approval History and Summary of Changes in the Action Field
Version
1

Date
April 16, 2008

1

April 21, 2011

Action
Permanent Replacement Standard for
PRC-STD-005-1
FERC Order issued approving FAC501-WECC-1 (approval effective June
27, 2011)

Adopted by Board of Trustees: October 29, 2008

Change Tracking

3

WECC Standard FAC-501-WECC-1 – Transmission Maintenance
Attachment 1-FAC-501-WECC-1
Transmission Line and Station Maintenance Details
The maintenance practices in the TMIP may be performance-based, time-based, conditional
based, or a combination of all three. The TMIP shall include:
1. A list of Facilities and associated Elements necessary to maintain the SOL for the transfer
paths identified in the most current Table titled “Major WECC Transfer Paths in the Bulk
Electric System;”
2. The scheduled interval for any time-based maintenance activities and/or a description
supporting condition or performance-based maintenance activities including a description
of the condition based trigger;
3. Transmission Line Maintenance Details:
a. Patrol/Inspection
b. Contamination Control
c. Tower and wood pole structure management
4. Station Maintenance Details:
a. Inspections
b. Contamination Control
c. Equipment Maintenance for the following:
•

Circuit Breakers

•

Power Transformers (including phase-shifting transformers)

•

Regulators

•

Reactive Devices (including, but not limited to, Shunt Capacitors, Series
Capacitors, Synchronous Condensers, Shunt Reactors, and Tertiary
Reactors)

Adopted by Board of Trustees: October 29, 2008

4