Protecting People and the EnvironmentUNITED STATES NUCLEAR REGULATORY COMMISSION
ACCESSION #: 9704300011
April 22, 1997 ABB
Document Control Desk
U.S. Nuclear Regulatory Commission
Washington, DC 20555
Subject: Our letter of March 28, 1997
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 inform you of typographical errors found in the March
28, 1997 letter with reference to revised ZPA ratings.
The above mentioned letter was issued as a result of further analysis and
evaluation of our available qualification documents, concluding that most
of our Class 1E relays had the correct ZPA rating as originally
calculated.
The corrections are as follows:
1) The column heading labeled "Previous ZPA Rating (g) Letter 9/17/97"
should have the year 96, not 97.
2) For the relay type SDF-1, the "Correct ZPA Rating (g)" should be
4.2, not 8.0.
This letter is being sent to those customers that have purchased
SDF-1 type relays.
We apologize for any inconvenience this may have caused.
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
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