ML20086P370

Final Deficiency & Part 21 Repts,Item 154 Re Defective Engine Mounted Electrical Cables on Emergency Diesel Generators Supplied by Transamerica Delaval.Initially Reported on 831114.Cable Replacement Completed 840124

ML20086P370
Person / Time
Site:	Harris
Issue date:	02/17/1984
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-180, REF-PT21-84 154, NUDOCS 8402270131
Download: ML20086P370 (4)

Text

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ -

i  :;;

j .'CD&L Carolina Power & Light Company

= = m22= w9n g e -

P. O. Box 101, New Hill, N. C. 27562 February 17,1984 Mr. James P. O'Reilly N RC-180 United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 - 900,000 KW - UNIT 1 POTENTIALLY DEFEC1'IVE ENGINE MOUNTED ELECTRICAL CABLES OF THE EMERGENCY DIESEL GENERATOR, ITEM 154

Dear Mr. O'Reilly:

Attached _is the final report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e) and 10CFR, Part 21, on November 14, 1983. With this report, Carolina Power & Light Company considers this matter closed.

If you have any questions regarding this matter, please do not hesitate to contact me.

Yours very truly, fff C+t4-*s vt--

R. M. Parsons Projcet General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment ec: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)

Mr. R. C. DeYoung (NRC)

OFFICIAL COPY 8402270131 840217 gDRADOCK 05000400 PDR e[

d 3 7 l

i

.- 'o. '.3 .

CAROLINA POWER AND LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT e

UNIT NO. 1 FINAL REPORT POTENTIALLY DEFECTIVE ENGINE MOUNTED ELECTRICAL CABLES EMERGENCY DIESEL GENERATOR ITEM 154 (DDR 2209)

JANUARY 27, 1984 REPORTABLE UNDER 10CFR50.55(e) and 10CFR21

SUBJECT:

Shearon Harris Nuclear Power Plant, Unit 1.

10CFR50.55(e) and 10CFR21, reportable deficiencies:

Potential defect with engine mounted electrical cable on the emergency diesel generator engine. Purchase Order NY-435079.

ITEM: Engine mounted electrical cables of the Emergency Diesel Generator Sets.

SUPPLIED BY: Transamerica DeLaval, Inc., Oakland, California.

NATURE OF DEFICIENCIES: In September, 1982, Transamerica DeLaval, Inc, notified CP&L of a potential problem with engine mounted electrical cables. These cables are located on the engines of the generator sets; one cable runs from the magnetic pickups to the engine junction boxes. The second cable is the multi-conductor cable which runs from the "on-engine" terminal box to the Woodward governor actuator.

Transamerica DeLaval had determined that the manufacturer's temperature rating for the cable insulation may be exceeded during operation of the diesel generator.

DATE PROBLEM OCCURRED: Refer to section above.

DATE PROBLEM REPORTED: On November 14, 1983, CP&L (N. J. Chiangi) notified the NRC (Mr. A. Hardin) that.this item was reportable under provisions 10CFR50.55(e) and 10CFR21.

SCOPE OF PROBLEM: This problem involved two Unit 1 Emergency Diesel Generators.

REASONS DEFICIENCY IS REPORTABLE: The emergency diesel generator sets supply on-site power to safety and essential loads in the event of the loss of both normal on-site and off-site power. Failure of cables involved would result in 1) slower response to load change and load pick-up, and 2) prevent the operation of the emergency "stop" sequence of the engine due to the malfunctioning of the output breaker.

l

- _ _ _ _ _ - _ _ _ _ - _ . _ l

CORRECTIVE ACTION: Original cables were replaced by vendor supplied cables and accessories.

FINAL REPORT: Cable replacement was completed Janaury 24, 1984.