Part 21 Report - 1995-126
ACCESSION #: 9505090013 ABB FACSIMILE ABB Power Distribution Distribution Systems Division 201 Hickman Drive Sanford, FL 32771 (407) 323-8220 To: Name: NRC - SCARFO Company: Fax: 301-816-5151 From: Name: David Stone Phone: (407) 323-8220 x159 Fax: (407) 324-5967 Date: 5-3-95 Pages following: 2 SUBJECT: 10CFR Part 21 Report Please see the attached notification of a reportable condition. The attachments are not finalized and are not being sent at this time. The attachments should be finalized and the full report mailed to the NRC and end users by 5-5-95, Regards, David F. Stone Quality Assurance Manager ABB RECORD OF EVALUATION SUBJECT: 10CFR21 Report of Product Defect - Mismarked Amp #12-10 Insulated Lugs at San Onofre Nuclear Generating Station - Southern California Edison. 1.) Description of Deficiency: AMP Inc. #12-10 insulated lugs were found to have been used with #14 gauge wire in ABB 4160V-5HK and 480V K-Line Switchgear supplied by ITE in 1976. The yellow (illegible) or the mismarked lugs had 3 black stripes indicating for use with #16-14 gauge wire. The lugs were stamped #12-10. The use of the oversize lugs led to out-of- specification measurements during pull tests. 2.) Location and Date: This deficiency was discovered at the San Onofre Nuclear Generating Station - Southern California Edison on March 14, 1995. The switchgear was shipped in 1976. 3.) Analysis of Safety Implication: A thorough analysis was conducted by San Onofre Nuclear personnel (see attachment 41). The oversize lug connections have not failed and are not of an immediate reliability concern based on this laboratory analysis and the extended time frame the lugs have performed satisfactorily. However, the mismarked lugs represent a potential source of failure from pullout due to any unusual load application (such as a seismic event) that could effect Safety Related Equipment. 4.) Conclusions: Research indicates that the mis-marked lugs were probably delivered in a lot and were issued to manufacturing floor stock. Therefore, other equipment supplied by ITE and Gould ITE in the 1975-1977 time frame might have the same type of mis-marked lugs, including equipment in 1E applications (see attachment #3). K-Line and HK switchgear equipment with Amp insulated lugs should be inspected for mis-marked/oversized lugs and changed to the proper size lug during the next scheduled outage. Contact Components Marketing at (407) - 323-8220 x13O, x131, x132, or x157. 5.) Reference Documents: Attachment #1 - Report generated by San Onofre Nuclear personnel. Attachment #2 - Acknowledgment from AMP Inc. in regard to their evaluation of samples of the mismarked lugs. Attachment 43 - Customer List. 6.) Corrective Action: All AMP lugs currently in inventory at ABB, Distribution Systems Division were inspected for this discrepancy on May 3, 1995. No mismarked lugs were found. Training was held with QA personnel on this finding. ABB Power T & D Company Inc, Distribution Systems Division Telephone: Telefax 201 Hickman Drive 407 323-8220 407 322-8934 Sanford, FL 32771-18201 (Marketing/Engineering) 407 322-8938 (Operations) 407 328-9284 (Human Resources) ABB 7.) Action to Prevent Recurrence: All AMP lugs utilized on Nuclear Safety Related switchgear will be subject to 100% inspection. 8.) Point of Contact: Point of contact for ABB, Distribution Systems Division in Sanford, FL is David Stone, Quality Assurance Manager, (407)323-8220, ext. 159. 9.) Prepared By: This report prepared by David Stone. 10.) Reviewed By. Aubrey Jackson - Total Quality Manager Norb Hagenhoff - Vice President/General Manager ABB Power T & D Company Inc, Distribution Systems Division Telephone: Telefax 201 Hickman Drive 407 323-8220 407 322-8934 Sanford, FL 32771-18201 (Marketing/Engineering) 407 322-8938 (Operations) 407 328-9284 (Human Resources)
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021