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