ML18005B032
| ML18005B032 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 08/25/1989 |
| From: | Richey R CAROLINA POWER & LIGHT CO. |
| To: | Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-89, REF-PT21-89-144-000 HO-890087-(O), PT21-89-144, PT21-89-144-000, NUDOCS 8909110030 | |
| Download: ML18005B032 (6) | |
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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:8909110030 DOC.DATE: 89/08/25 NOTARIZED: NO FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina AUTH.NAME AUTHOR AFFILIATION RICHEY,R.B.
Carolina Power 6 Light Co.
RECIP.NAME RECIPIENT AFFILIATION EBNETER,S.D.
Region 1, Ofc of the Director
SUBJECT:
Part 21 rept re molded case breakers.
DISTRIBUTION CODE:
IE19D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Part 21 Rept (50 DKT)
NOTES:Application for permit renewal filed.
DOCKET I 05000400 o5ooo4oo S
RECIPIENT ID CODE/NAME PD2-1 LA BECKER, D INTERNAL: AEOD/DOA IRM TECH ADV NRR CRUTCHFIELD NRR/DEST/ADS 7E NRR/DOEA/GCB 11 NUDOCS-ABSTRACT RES/DSIR/EIB RGN2 RGN4 EXTERNAL: INPO RECORD CTR NRC PDR COPIES LTTR ENCL 1
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RECIPIENT ID CODE/NAME PD2-1 PD AEOD/DSP/TPAB IRM/DCTS/DAB NRR VARGA,S NRR/DLPQ/PEB 10 NRRJQLRRSJVIB 9D gg~~09.
RGN1 RGN3 RGN5 LPDR NSIC SILVERIE COPIES LTTR ENCL 1
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LTTR 25 ENCL 24
CREE Carolina Power & Light Company HARRIS NUCLEAR PROJECT P.O.
Box 165 New Hill, North Carolina 27562 AUG 2 g 1989 File Number:
SHF/10-13510 Letter Number:
HO-890087 (0)
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D. Ebneter United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Suite 2900)
Atlanta, Georgia 30323 SHEARON HARRIS DOCKET NO. 50-400/LICENSE NO. NPF"63 POTENTIAL 10CFR PART 21 NOTIFICATION MOLDED CASE CIRCUIT BREAKERS
Dear Mr. Ebneter:
Attached is our'eport on the subject item which is provided to you with initial information on an item which we consider to be p'otentially reportable per the provisions of 10CFR21.
Me continue to investigate the observed failure at Harris to determine the root cause, and will use this root cause to determine if an actual Part 21 report is required.
Carolina Power and Light Company considers that the actions taken/planned are adequate for resolution of this item at this time.
If you should have any questions regarding this matter, please contact Mr. Dean Tibbitts at (919)-362-2718.
Very truly y rs B.
hey Manager Harris Nuclear Project RJS:djs Enclosure C
cc:
Mr. R. A. Becker (NRR)
Mr. M. H. Bradford (NRC-SHNPP)
NRC Document Control Desk SV69 HZMO 89082 PDR ADOCK 05000400 8
PDC MEM/HO-8900870/1/OS1 3a *~(9
CAROLINA POWER 6 LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT MOLDED CASE CIRCUIT BREAKERS POTENTIALLY REPORTABLE UNDER 10CFR21 MEM/HO-8900870/2/OS1
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SUBJECT:
Molded Case Circuit Breakers ITEM:
Model HE3B100 Ampere circuit breakers SUPPLIED BY:
ITE-Siemens Siemens Energy
& Automation Inc.
ITE Electrical Products 3333 State Bridge Road Alpharetta, Georgia 30201 NATURE OF DEFICIENCY:
These circuit breakers were purchased commercial grade and subjected to thermal and instantaneous trip tests at SHNPP.
The breakers are used in safety-related motor control centers.
Typical loads include the Reactor Coolant System Supports Fans (S-4),
and the Emergency Diesel Generator Room Exhaust Fans (E-86).
SAFETY IMPLICATIONS:
In certain applications, the breaker would not hold the required load resulting in equipment inoperability.
PLAN OF CORRECTIVE ACTION:
1.
A test of the breakers was performed by the vendor on August 22, 1989.
2.
CP&L is reviewing the circuit breaker test procedures used at the plant.
3.
CP&L is identifying safety related applications of these molded case circuit breakers at SHNPP.
4.
Motor in-rush current tests will be performed on the S-4 motor to determine if correct breaker is being utilized, and/or determine motor problems.
MEM/HO-8900870/3/Osl
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