Part 21 Report - 1997-290
ACCESSION #: 9704040213
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ABB
March 28, 1997
Document Control Desk
U.S. Nuclear Regulatory Commission
Washington, DC 20555
Subject: Report of Potential Deviation per 10CFR Part 21
ZPA Ratings for Class 1E Relays
Notification by: ABB Power T&D Company Inc.
Power Automation and Protection Division
4300 Coral Ridge Drive
Coral Springs, FL 33065
This letter is to correct the information provided in the September 17,
1996, Report of Potential Deviation related to ZPA Ratings for Class 1E
Relays.
The above mentioned letter was issued as a result of the Surveillance
audit 96-066 and a follow-up visit performed by Yankee Atomic Electric
Company at ABB Power T&D Company Inc. (PAPD) in Coral Springs, Fl.
After further analysis and evaluation of the available qualification
documents, ABB concluded that the only Class 1E Relays whose original ZPA
should have been revised were the CRN-1, CVE, CVE-1, CVQ, KD-10 and KF.
As stated in the previous report, the design and functional performance
of these relays were not affected and did not change.
Attached is a revised list of relays with correct ZPA ratings. Please
disregard previous published ZPA ratings list, dated September 17, 1996.
Questions regarding information in this letter should be directed to the
Quality Manager at the ABB Power Automation and Protection Division at
800-523-2620, (954) 752-6700, or fax (954) 345-5329.
Marilinda Ruiz Jose R. Gierbolini
Total Quality Manager Profit Center Manager
Electromechanical Relays
ABB Power T&D Company Inc.
Power Automation & Protection Division 4300 Coral Ridge Drive
Coral Springs, FL 33065
Telephone: (954) 752-6700
Telefax: (954) 345-5329
March 28, 1997
Subject: Report of Potential Deviation per 10CFR Part 21
ZPA Ratings for Class 1E Relays
Table "RELAY TYPES AND CORRECTED ZPA VALUES" omitted.
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