Project 2015-10 Single Points of Failure TPL-001

Related Files

Status
Revisions have been made to some of the posted documents and the changes are highlighted in the respective documents. As a result, the comment period is being extended out of an abundance of caution. A formal comment period for TPL-001-5 – Transmission System Planning Performance Requirements is open through 8 p.m. Eastern, Monday, April 23, 2018. An additional ballot for the standard, an initial ballot for the implementation plan, and a non-binding poll of the associated Violation Risk Factors (VRFs) and Violation Severity Levels (VSLs) will be conducted April 13-23, 2018. The existing TPL-001-5 ballot pool was used for the initial ballot of the implementation plan.

The draft Reliability Standard Audit Worksheet is posted for industry comment through Monday, April 23, 2018.

Background
The SPCS and the SAMS conducted an assessment of protection system single points of failure in response to FERC Order No. 754, including analysis of data from the NERC Section 1600 Request for Data or Information. The assessment confirms the existence of a reliability risk associated with single points of failure in protection systems that warrants further action.

Additionally, the two directives from FERC Order No. 786 (p. 40 and p. 89) and updates to the MOD reference in Requirement R1, Measure M1 and the Violation Severity Levels sections have been added to the scope of the project.
 
Standard(s) Affected: TPL-001-4 - Transmission System Planning Performance Requirements
 
Purpose/Industry Need
The proposed standard project will benefit reliability by providing clear, unambiguous and results-based reliability standard requirements to address the assessment’s recommendations for modifying NERC Reliability Standard TPL-001-4 (Transmission System Planning Performance Requirements) identified in the SPCS and SAMS report titled “Order No. 754 Assessment of Protection System Single Points of Failure Based on the Section 1600 Data Request.”

 

Draft Actions Dates Results Consideration of Comments

Draft 3

TPL-001-5
Clean | Redline to Last Approved (Updated 03/08/18) | Redline to Last Posted

Implementation Plan
Clean | Redline to Last Posted

Supporting Materials

Unofficial Comment Form (Word)

VRF/VSL Justification

Mapping Document

Technical Rationale (Updated 03/08/18)

Cost Effectiveness Background (Updated 03/08/18)





Draft Reliability Standard Audit Worksheet (RSAW)
CleanRedline



TPL-001-5 Additional Ballot and Non-binding Poll

Implementation Plan Initial Ballot​

Updated Info

Info

Vote

04/13/18 - 04/23/18

Comment Period

Info

Submit Comments

02/23/18 - 04/23/18

Info

Send RSAW feedback to:
RSAWfeedback@nerc.net


03/30/18 - 04/23/18

Draft 2

TPL-001-5
Clean | Redline to Last Approved | Redline to Last Posted

Implementation Plan
Clean | Redline to Last Posted

Supporting Materials

Unofficial Comment Form (Word)

VRF/VSL Justification

Mapping Document

Technical Rationale

Cost Effectiveness Background




Draft Reliability Standard Audit Worksheet (RSAW)


Initial Ballot and Non-binding Poll

Updated Info

Info

Vote

10/13/17 - 10/23/17

Ballot Results

Non-binding Poll Results
Consideration of Comments

Comment Period

Info

Submit Comments


09/08/17 - 10/23/17

Comments Received

Join Ballot Pools


09/08/2017 - 10/06/17


Info

Send RSAW feedback to:
RSAWfeedback@nerc.net


10/13/17 - 10/23/17

Draft 1

TPL-001-5
Clean | Redline to Last Approved

Implementation Plan

Supporting Materials

Unofficial Comment Form (Word)


Comment Period

Info

Submit Comments

04/25/17 - 05/24/17
Comments Received​
Consideration of Comments


Standard Drafting Team Nominations

Supporting Materials

Unofficial Nomination Form (Word)



Nomination Period

Info

Submit Nominations


07/22/16 - 08/05/16

The Standards Committee Accepted the Standards Authorization Request on July 20, 2016


Final Standards Authorization Request
Clean | Redline


Standards Authorization Request

Supporting Materials

Unofficial Comment Form (Word)

​Comment Period

Info

Submit Comments
​05/26/16 - 06/24/16 ​Comments Received Consideration of Comments

Standards Authorization Request

Supporting Materials

Unofficial Comment Form (Word)

Background Document - Order No. 754 Report

 
Comment Period
 
 
​11/12/15 - 12/17/15 Comments Received

Drafting Team Nominations

Supporting Materials

Unofficial Nomination Form (Word)

​Nomination Period

Info

Submit Nominations
​11/12/15 - 12/01/15

The Standards Committee accepted the Standards Authorization Request on October 29, 2015