ML18094B161

Responds to NRC Bulletin 88-010,Suppl 1 Re Molded Case Circuit Breakers.Nontraceable Breakers Will Either Be Replaced Immediately or Justification for Continued Operation Will Be Developed within 30 Days

ML18094B161
Person / Time
Site:	Salem, Hope Creek, 05000000
Issue date:	11/07/1989
From:	Miltenberger S Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-010, IEB-88-10, NLR-N89225, NUDOCS 8911150101
Download: ML18094B161 (8)

Text

Public Service Electric and Gas .

Cof'l)pany Steven E~ Miltenberger Public Service Electric and Gas Company P.O. Box 236. Hancocks Bridge. NJ 08038 609-339-4199 Vice President and Chief Nuclear Officer NOV. 0 7 1989 NLR-N89225 U. s*. Nuclear Regulatory Commission Document Control Desk Washington, *Dc 20555 Gentleman; RESPONSE TO IE BULLETIN 88-10, SUPPLEMENT 1 MOLDED CASE CIRCUIT BREAKERS SALEM.AND HOPE CREEK GENERATING STATIONS DOCKET NOS. 50-272, 50-311, AND 50-354 We have reviewed the clarifications and.additional guidance.

provided in Supplement 1 to IE Bulletin 88-10 and evaluated the impact on the program described in our previous responses dated April 3, 1989 (NLR-N89061) and June 13, 1989 (NLR-N89112). In particular, our identification of traceable breakers was reviewed in light of the NRC. definition of traceability provided in Supplement 1. Of the 389 circuit br*eakers *in stock which were available-for'installation in safety-related applications, 194-(approximately 50%) are traceable to the Circuit Breaker Manufacturer (CBM) in accordance with the requirements of _

supplement 1. Table 1 provides information relative to the procurement trail for non-traceable molded case circuit breakers (MCCB). Non-traceable breakers ~resently held in inventory have beeh tagged to prevent-their future use in safety-related*

applications. -The final disposition of these breakers will be determined after all re~aining activities associated with Bulletin 88-10 have been completed.

• Testing has been completed on 85 molded case circuit breakers.

This population corresponds to those breakers identified as non-traceable prior to the issuance of Supplement 1.* This testing was conducted in accordance with the guidance provided in Attachment 1 to IE Bulletin.88-10. The failure rate for those breakers tested was in excess of the 10% allowable rate identified in the Bulletin, however; a number of the identified failures are the result of a lack of vendor specific contact resistance measurement acceptance criteria~ PSE&G do~s not intend to perform any additional testing on the larger population of non-traceable breakers identified as a result of Supplement 1 unless a specific breaker is requirea to replace a non-traceable 8911150101 891107 PDR ADOCK 05000272 Q PDC

l Document Control Desk 2 NOV O7 1989 NLR-N89225 breaker whi.ch has been installed in the plant. Attachment 2 provides a listing of those breakers w!1ich failed testing.

PSE&G has initiated its review of safety-related circuit breakers purchased between August 1, 1983 and August 1, 1988 to determine if no~-traceable breakers .have been installed at Salem and Hope Creek Generating Stations. This review consists of two separate efforts. The first review effort.involves the review of MCCBs issued from stock as replacements for installed equipment. This review has been completed for the Hope Creek'Station where it was determined that no non-traceable breakers issued from stock during*the period in question had been installed in safety-related systems. The review for Salem Station is underway. The second effort involves a review of Design Change.

Packages installed at Salem and Hope Creek Stations durj,ng the period ln question. As you are aware, significant plant backfit activity occurred during this period as a result of the accident at Thre-e Mile* Island and the resolution of a number of Unresolved Safety Issues (e.g. 10 CFR 50, Appendix R, NUREG 0588, NUREG 0578, etc.). - It is our expectation that the volume of design changes accomplished during this time period will require *a protracted review effort. We therefore propose to conduct our review and replacement efforts concurrently, with.all work to be completed prior to startup from the.second of the next two*

refueling outages for each unit. The projected outage schedules are identified in Attachment 3.

Non-traceable breakers identified during these reviews will either be replaced immediately or a Justification for Continued Operation will be developed within :30 days of the assignment of a MCCB to non-traceable status. Replacement* brea.kers will either be fully traceable or will hav~ been satisfactorily tested in accordance with IE Bulletin 88-10.

If you should have questions relative to this information, please feel free to contact us.

Sincerely, Attachments

Document Control Desk 3 NLR-N89225 tJOV 0 7 1989 c Mr. J. c. Stone Licensing Project Manager - Salem Ms. K. Halvey Gibson Senior Resident Inspector - Salem Mr. c. *y. Shiraki Licensing Project ~anager = Hope Creek Mr. D~ K. Allsopp Resident Inspector - Hope Creek Mr. w. T. Russell, Administrator Region I Mr. Kent Tosch, Chief New Jersey Department of Environmental Protection Division of Environmental Quality Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625

REF: NLR...:.N89225

-STATE OF NEW JERSEY SS.

COUNTY OF SALEM

• Steven E *. Miltenberger, being Quly sworn according to law deposes and says:

I am Vice President and Chief Nuclear Officer of Public Service Electric and Gas Company, and as such, I find the matters set forth _in our letter dated November 7, 1989 , concerning the Salem.Unit Nos. 1 and 2 and Hope Creek Generating Stations, are true to the best of my knowledge, information and belief.

Subscribed and Sworn to before me of. ~1(cf'l--Uvv)JJ-A ,

1 this 7<<-; day 1989

_J/JJL'VCj_h-_~ 7J1 *-1/(AM)JJ~

Notary Public of New Jersey NOTARY f\;Ji..:~~ 0F i'~EW JERSEY My Commission expires on My Commlsslcil Expires May 6, 1993

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Re'cordt P_O_NUB P_O_DlTB QUlnITY KUUFACT . ms VOLTS POLBS KODBL_JUK VEIDOI TRACE -

2 P2-181137 12/22/86 15 ITB 20 125DC,120AC 1 8218020-82 . TBLEKBCH!IIQUE 10 P2-181137 12/22/16 1 ITB 40 125DC, 120lC 1 B21B040-TYPEB2 TBL!BBCAIIQUB - 10 Pl-164858 09/25/16 1 BBIIEB!ll 5 250 1 lll!3-A GA TECBIOLOGIBS 10 13 mm 07 /19/84 1 IESTIIGBOUSE 70 120/140AC 2 C' *o POVEi SYSTEMS 10 15 926957 07119/H 1 VESTIIGBOUSB 40 120/240AC 2 *C ' DPOVEI SYSTB!IS 10 l 6 P2-160734 07/15/16 4 SQUARE D 20 120/240 .l QOB

• JOIBS BLBCTIICAL 10 17 P2-160734 07/15/16 4 SQUARE D 30 . 1201240 . 1 QOB JOIES BLECTIICAL 10 H P2-160734 07/15il6 4 SQUARE D 15 120/240 1 QOB JOIES ELECTRICAL 10 21 940452 04/11115 2 ITE 20 250DC,240AC 2 8228020 COISOLIDATED CTILS 10 22 886559 03/17/13 . 4 IBSTIIGHOUSE 100 250DC,600AC 2 IFB-2100 VBSCO 10 23 861600 07/26/82. 3 VBSTIIGHOUSE 100 250DC,600AC. 2 IPl-2100 VESCO . 10 24 -946221 01/26/15 2 VBSTIIGBOUSE 400 250DC,600AC 2 Jl-573-8 C ' DPOVER SYSTE!S 10 29 P2-116111 12/10/16 2 ITE . 20 ~ 2401C 3 !2JI020 T8LEl!ECAIIQUB 10 32 P2-194454 02/02/87 1 ITB 15 125DC, 120AC 1 . 8218015 CYI IIC

• 10 36 P2-245065 12/28/17 5 ITB 20 125DC,120AC 1 . B2ll020 TYP8 82 CBD-COISOLIDATED 10 38 . 944863 . 01/25/15 1 IESTIIGHOUSB 50 6001C 3 IPllUO  !!TOI CULTER-Hl!!BI - 10 41 P2-188137 12/22/86 7 ITE - 20

• 250DC, 240AC . 2 8228020 TYP8 82.. T8LE!EC!IIQUE 10 45 Pl-118098 12/18/85 1 IESTIIGBOUS8 15 UOAC. 3 £BB3015 CHIIBI CORP 10 46 Pl-115390 11/18/85 1 BBIIEBAD 5 UOAC. 3 CFJ-GJ-ll ~' PBTIO CBEKICAL ASS. 10 47 938879 03/25/15 5mm 1 250 2 UILBY comoLS 10 48 938879 03/25/85 5 AIIPAI 5 250 2 HILBY COITIOLS

• 10 49 938879 03/25/85 smm 50 250 3 BULEY COITIOLS 10 50 938879 03/25/15 5mm 30 250 2 BAILEY comoLS 10 51 926456 . 07 /06114 2 ITB 15 125DC,120AC 1 BBH015 GOULD 10 52 926456 07/06/84 8 ITE 70 250DC,480AC 2 8428070 GOULD 10 55 926177 07 /03184 l GEIEUL ELECTRIC 30 125oc,2mc 1 TIBD113030 FIOK! BLBCTRIC 10 56 926177 . 07 /03184 2 GBIBUL BLECTUC 30 600AC 3 TBBD136030VL PiOBK BLBCTIIC 10 51 926177 07 /03184 4 GBIERAL .ELECTRIC 25 600AC* 3 TBBDl 36025VL . FRO!! BLECTIIC 10 min 07/03/14 4 GBIERAL ELECTRIC 15 . 600AC 3 TBED1360151L FIOKK BLBCTUC 10 938177 03/11/15 5 GEIERAL BLECTIIC 20 240AC 2 TIQC21201L AllOI BLECTIOllCS 10 60 938177 03/11/15 1 GBIERAL BLBCTIIC 80 600AC 3 TBBD136010 11101 BLECTIOIICS 10 61 938177 03/11/85 1 GBIEIAL BLBCTRIC 400 250DC,600AC 2 TIJl42640011 lllOV BLECTIOIICS 10 68 859747 07/20/82 15 ITB .100 600AC 3 umoo

• no11K BLBCTIIC 10 71 924728 06/11/14 2 ITE 70 250DC,600AC 2 BF2-B010 BlOD BOVEil 10 n 837108 12/21181 5 GBIERAL ELECTRIC . 15 600AC 2 TBD126015 IBSCO BLBCTIIC JO 74 935175 01/09/85 2 BBIIEllAll o.5 me 2 !!33 UILBY COITROLS 10 76 829791 10/29/81 1 BBIIBJIAD 1.5 50DC "~*:. 2 !!33 HILBY KBTBI 10 77 673713 10/30/78 2 BBiiB!IAll 5 250AC 2 l!l-U-A ;unu BLECT 10 78 912329 01118/14 3 BBIIBllAD 5 250AC 2 JA2-Al-A llROI BLBCTIOllCS 10 79 -575983 12/15/76 2 BBIIEBAH 1. 5 65DC 2 !112-B.3-A iBIIE!AD 10 85 837048 12/29181 2 GBIBUL ~ECTIIC 225 600AC l TP1236FOOO FIOM BLECTIIC 10 106 906474 11/15/13 2 IESTIIGBOUSE 125 600AC 3 IFB3125 IBSCO 10 109 756344 . 06/05/80

• 1 GEIBRAL ELECTRIC 30 250DC,240AC 2 TBB122030 POIBLL APPARATUS 10 110 845110 03/18/82 2 GEIERAL BLECTIIC 30 250DC,240AC 2 TBB122030 POWELL APPARATUS 10 112 912221 01/12114 2 BBIIEllAll 7.5 50 2 HM3 llLLOU 10 113 575983 12115176 1 BBIIBK!llll 0.5 65DC 2 AK2-B3* BEIIBKAD 10 115 926456 07 /06184 9 ITB 20 250DC,480AC 2 Bmo20 TYPB 84 GOULD NO 120 938177 03/11/85 1 GBIEIAL ELECTRIC 600 240AC 3 TJ36FllD lllOV ELBCTROIICS JO 121 729839 11/02/79 3 BEIIBllAJll 2. 50DC 2 1112-BJ-A BEIIE!lll KO 128 926456 07/06/84 6 ITE 50 250DC,UOAC 2 8428050 TYPE 84 GOULD 10 129 937619 03/07185 1 ITE 50 250DC,480AC 2 8428050 TYPB 84 GOULD 10 135 Pl-103607 10/02/85 5 AIRPU 5 377AC 1 IBSTIIGBOUSE 10 153 I I 0 NO 157 Pl-117697 12/03/85 10 AIRPAI . 5 277AC 1 VESTIIGBOUSE 10 158 829791 10/29181 2 AIRPAI 1.5 65DC 2 HILEY llBTER 10 95713 06/17/83 2 VESTIIGBOUSE 100 600AC 3 FA3100 STEARIMOGBRS RO mm 03/14/85 2 BULEY COITROLS NO 168 Pl-115390 11/18/85 1 AIRPAI . 2. 5 480AC PBTRO CBEKICAL ASS. NO l OF 2

A'..L.i'l'.OIMENT 1

. **- --* - ..... -.. - - .. -. ____ _,,.._~~-*- - -- --*- - - .. -*

I 169. Pl-111091 12/11/15 1 l!STIIGBOOSB 15 250DC,4101C. 2 BBB2015

• CURIEi CORP. 10

,,n Pl-113320 10/31/15 1 G~BllL ELBCTIIC 400 250DC,6001C 2 TJJ426Y400 CYBBRBX, !IC. 10 P2-191534 03/04/87 1 !TB 30 2mc 3 8238030 . TBLBRBCAIIQUE 10

• ~'

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-2 OF 2

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ATTACHMENT 2 MOLDED CASE CIRCUIT BREAKERS TOTAL NUMBER OF BREAKER TESTED - 85 FAILED TEST - 18 PERCEN~ FAILURE 21.18%

Breaker Type Manufacturer Failure cause QOB (33) SQUARE D- CONTACT RESISTANCE QOB ( 3 6) SQUARE D CONTACT RESISTANCE QOB (38) SQUARE D CONTACT RESISTANCE QOB ( 3 9) SQUARE D CONTACT RESISTANCE HFB (15) WESTINGHOUSE INSTANTANEOUS HFB ( 16) WESTINGHOUSE 135%

QOB (34) SQUARE D 100%

QOB (35) SQUARE D 100%

QOB ( 40) SQUARE D CONTACT RESISTANCE QOB (37) SQUARE D 100%

CONTACT RESISTANCE AM2 ( 50) HEINEMANN 135%

AM2 ( 61) HEINEMANN 100%

EF3 (82) ITE 100%

EF3 (90)  !TE 100%

EF3 (91) ITE 100%

EF3 (92) ITE 100%

HFB (93) WESTINGHOUSE 100%

QOB (42) SQUARE D CONTACT RESISTANCE

(*) indicates the test number assigned to the breaker 1 OF 1

ATTACHMENT 3 PROJECTED OUTAGE SCHEDULES SALEM AND HOPE CREEK STATIONS Second ' Second Unit outage No. Outage Date Salem Unit 1 10 4/92 Salem Unit 2 6 9/91 Hope Creek 4 9/92