United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9507070477

                            ASEA BROWN BOVERI

June 28, 1995

Director, Office of Nuclear Reactor Regulation
U.S. Nuclear Regulatory Commission
Washington, DC 20555

Subject:            Notification of Potential Defect per 10CFR Part 21
                    Type CVE-1 Relays

Notification by:    Cheryl A. Dahle
                    Quality Manager
                    ABB Power T&D Company Inc.
                    Relay Division
                    4300 Coral Ridge Drive
                    Coral Springs, FL 33065
                    (305) 752-6700

This letter is a notification of a potential defect on the Class 1E type
CVE-1 relay style numbers 1326D67A01 and 1326D67A02.  This defect
consists of an incorrectly rated telephone relay used as V1 and V2.

The Class 1E type CVE-1 relays are equipped with two 110 volts rated
telephone relays.  The typical operating voltage in the field exceeds the
telephone relays (V1 and V2) rating; therefore, the telephone relays may
overheat and fail.  To correct this, the design has been changed to a 120
volts rated telephone relay.

A copy of this notification is being sent to all customers who our
records indicate have purchased these type of relays.

If you have any questions or require any additional information regarding
this announcement, please do not hesitate to contact the Quality Manager
at the Relay Division.

Cheryl A. Dahle                         Jose R. Gierbolini
Quality Manager                         Profit Center Manager
                                        Electromechanical Relays

                       ABB Power T&D Company Inc.

     Relay          4300 Coral Ridge Drive   Telephone: (305) 752-6700
     Division       Coral Springs, FL 33065  Telefax:   (305) 345-5329



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