ML18005A387
| ML18005A387 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 04/05/1988 |
| From: | Eury L CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| IEB-88-001, IEB-88-1, NLS-88-068, NLS-88-68, NUDOCS 8804120191 | |
| Download: ML18005A387 (3) | |
Text
ACCESSION NBR FAC IL: 50-400 AUTH. NAME EURYi L. W.
REC IP. NAMF REGU QRY INFORMATION DISTRIBUT
'J SYSTEM (RIDS) 8804120fof DQC. DATE: 88/04/05 NOTARIZED:
YES Shear on Harri's 'Nuclear Pouer Plant~
Unit 1 i Carolina AUTHOR AFF ILIATIQN Carolina Poeer
~ Light Co.
RECIPIENT AFFILIATIQN Document Control Branch (Document Control Desk)
DOCKET N
05000400
SUBJECT:
Responds to NRC Bulletin 88-001. re defects in Westinghouse circuit breakers. Util intends to perform long-term insps required bg bulletin during upcoming refueling outage.
DISTRIBUTION CODE IE11D COPIES RECEIVED. LTR f
ENCL SIZE:
TITLE: Bulletin Response (50 DKT)
NOTES: Application for permit renewal filed.
05000400 RECIPIENT ID CODE/NAME PD2-1 LA BUCKLEY'S 8 COPIES LTTR ENCL 0
1 1
REC IP IENT ID CODE/NAME PD2-1 PD COPIES LTTR ENCL 1
INTERNAL: AEOD/DOA AEOD/DSP/TPAB NRR/DEST/ADS 7E NRR/DOEA/EAB 11
,N E
PB 10 RGN2 FILE 0 1 1
1 1
1 1
1 1
1 1
1 1
1 AEOD/DSP NRR/DEST/ADE 8H NRR/DEST/MEB 9H NRR/DOEA/GCI3 1 1 NRR/PMAS/ ILRB1 2 RES/DE/EIB 1
1 1
1 1'
1 EXTERNAL:
LPDR NS IC 1
1 f
NRC PDR TOTAL NUMBER OF COPIES REQUIRED:
LTTR 1S'NCL 18
CML Carolina Power 8 LightCompany P. O. Box 155t
~ Ratelgh, N. C. 27602 APR 5
lS88 SERIAL: NLS-88-068 LYNN Vji. EURY Senior Vice President Operations Support United States Nuclear Regulatory Commission ATTENTION: Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400/LICENSE NO. NPF-63
RESPONSE
TO NRC BULLETIN 88-01 Gentlemen:
SUMMARY
NRC Bulletin 88-01, Defects in Westinghouse Circuit Breakers, was issued on February 5,
1988.
In this bulletin the NRC provided information on Westinghouse series DS circuit breakers and safety concerns associated with their use.
The bulletin also established short'-term and long-term inspection programs for the welds on the breaker pole shafts and the alignment in the breaker closing mechanism.
Carolina Power itc Light Company (CP6L) has completed the short:-term inspections.
The results of these inspections are included in the following discussion.
DISCUSSION The short-term inspections required by NRC Bulletin 88-01 consist of a visual inspection of the three main pole levers of the main and bypass breakers.
Attachment 1 of NRC Bulletin 88-01, Westinghouse
'Zechnical Bulletin NSID-TB-87-11, details the method for 'performing the inspections and provides acceptance criteria.
Prior to issuance of Bulletin 88-01, inspections which satisfy the requirements of Section 6
of the Westinghouse Technical Bulletin had already been performed on October 16, 1987 in response to information provided to CP&L by Westinghouse.
No problems were identified with the main or bypass breakers as a result of these inspections.
In addition to the short-term inspections specified in Section 6 of Westinghouse Technical Bulletin, the bulletin required that weld porosity be veri'fied.
A QA/QC review of the original reactor trip breaker receipt inspection documentation was performed.
It was determined that the pole shaft weld porosity on the main and bypass breakers was inspected at that time and is within the acceptance criteria specified in the bulletin.
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Document Control k
NLS-88-068 / Page 2
Carolina Power
& Light Company intends to perform the long-term inspections required by NRC Bulletin 88-01 during the upcoming SHNPP refueling outage.
This outage is currently scheduled to begin no later than September 1988.
Results of these inspections will be reported within 30 days of completion as required by the bulletin.
As requested, the Company has determined the time required to prepare
~ this response.
Approximately 16 manhours were required to complete the short-term inspections.
It is estimated that the long-term inspections will require approximately'2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> to perform.
An additional 16 manhours were expended in the preparation and review of the requested documentation.
Based on the satisfactory results of the short-term inspections, no additional costs for corrective actions or down time have been incurred.
Please refer any questions regarding this matter to Mr. Leonard I.
Loflin at (919) 836-6242.
Yours very truly, L. W. Eury LWE/MAT L.
W. Eury, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power 6i Light Company.
My commission expires: //jD7/+0 cc:
Mr. B.
C. Buckley Dr. J. Nelson Grace Mr. G. F. Maxwell
~ A r
,- NOTARY:,
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