ML20065L100

Provides Status Rept on molded-case Circuit Breaker Replacements to Date,In Response to NRC Bulletin 88-010

ML20065L100
Person / Time
Site:	Quad Cities
Issue date:	11/29/1990
From:	Taylor D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-010, IEB-88-10, NUDOCS 9012050226
Download: ML20065L100 (7)

Text

_

f C:mmtnwealth Edisin 1400 Opus Pitc3

~

-ii '~' 7 Downtra Grove, Illinois 60515 U

November 29, 1990

.U.S. Nuclear Regulatory Commission ATTN: DOCUMENT CONTROL DESK Washington, D.C.

20555

Subject:

Quad Cities Station Units 1 and 2 Status of NRC Bulletin 88-10 NRC_ Duke 1JfoL_50:2531165

References:

(a) NRC Bulletin 88-10, dated November 22, 1988-.

4 (b) H. Richter (CECO) letter to U.S. NRC, dated-April 4, 1989.

(c) M; Richter (CECO) letter to U.S. NRC,

-dated July 7, 1989.

(d) NRC Bulletin 88-10 Supplement 1,

' dated August 3, 1989.

(e)'M. Richter (CECO) letter to U.S. NRC, dated September 13, 1989.

(f) M. Richter (CECO) letter to U.S. NRC, dated November 9, 1989.

Dear Sir:

y NRC Bulletin 88-10, Reference (a), requested that actions be taken

.to provide reasonable assurance that molded-case circuit breakers (MCCB)

L purchased for use in safety-related applications'without verifiable traceability to the circuit breaker manufacturer (CBM) perform their safety i

function. :In Reference (e), Commonwealth Editcn Company -(Ceco) reported

!that-both units at Quad Cities Station had non-traceable MCCEs installed in-L

safety-related applications, and that thase breakers would be replaced (by h:

traceable breakers) to: complete Bulletin Action 5.

For both units, an alternative schedule'was presented for'the replacement of the non-traceable-MCCBs. CECO indicated that breaker replacement would be completed by the rend.of the second refueling outage beginning after March 1, 1989, presently schet:Uled for November 1990 for Quad Cities Unit 1 and December 1991-for

Quad Litles Unit 2.

.This letter provides a status report on the breaker i

replacements to date, and delineates those actions being performed to i

complete the breaker replacements, for both units.

Quad-Cities Unit 1 lists the model number, location and application of the.16 non-traceable MCCB orginally specified in Reference (b) for Quad Cities Unit I remaining to be replaced.

In addition Attachment 1 includes 4 additional non-traceable HCCB which were installed in late 1989 due to the 9012050226 901.l29 PDR ADOCK 05000254 O

PDC

S

, U.i Nuclear Regulatory Commission November 29, 1990 Unavailability of traceable MCCBs.

It is expected that each of these 20 (non-traceable MCCBs will be replaced during the upcoming Unit I refueling outage.. The four Unit I non-traceable breakers which have been previously replaced are 11sted in Attachment 2.

E Quad Cities Unit 2 lists the results of non-traceable MCCB replacement during the recent Unit 2 refueling outage at Quad Cities Station.

Of the 34

-Unit 2 non-traceable MCCBs described in the Quad Cities Unit 2 section of Reference (e), 30 have been replaced.

It should be noted that the 4 breakers denoted with astericks in Attachments 2 and 3 were reported in Reference (e) as: single MCCBs.

These instead should indicate two breakers at each location,:one-of which was older than the scope of the bulletin but otherwise

. identical to the one reported.

In each case only one breaker required replacement; however, it~was decided to replace both breakers to ensure their

. tracer.btlity and thus increase-by four the total number of breakers requiring

]

replacement. lists the remaining eight non-traceable MCCBs

. reported in the Quad Cities Unit 2 section of Reference (e).

It is expected that;all six of the' Unit I breakers listed in Attachment 4 will be replaced during the upcoming Unit 1 outage.

The two remaining Unit 2 breakers listed in Attachment 4'will be replaced as soon as operational conditions and equipment' availability' permit.

The traceable replacement breakers for Units 1 and 2 are.being.

. procured safe.ty-related, and meet the criteria of Bulletin Action 7.

CECO will' notify the NRC following completion of the breaker

. replacements for Units 1 and 2.

This will' document the completion of Bulletin Action 5 for Quad Cities Station, t

Please direct any questions that you may have concerning this t

'esponse to this office.

r Respectfully,

.i i

D.L. Taylor Generic Issues Administrator DT/imw ZNLD608/5

-Attachments:

1,2 - Status of MCCB Replacement for Quad Cities Unit 1.

3,4 - Status of MCCB Replacement for QutA Cities Unit 2.

Tec:

A.B. Davis - Regional Admindtrator, Region III Senior Resident Inspector - Quad Cities Station L. 01shan - NRR Project Manager

7 ATTACHMENT 1 INSTALLED NON-TRACEABLE BREAKERS ON UNIT ONE INSTALLED NEW

_SI #

. _S L f_.

L4001Lf local 108 APPLICATIQH 501H52 789E53 TEC36015 MCC 19-4, Di M0-1-1001-36B, RHR IB Torus Dump Valve.

502G40 789053 TEC36007

.MCC 18-1A, C4 M0-1-220-4, MSL to Condenser 503021 789E53 TEC36015 MCC 18-18, C1 M0-1-1001-34A, RHR 1A Torus Spray 503D21 789E53 TEC36015 MCC 19-4, C1 MO-1-1001-34B, RHR 1B Torus Spray 503022 789C53 TEC36003 HCC 18-1A, A3 M0-1-220-90A, IA HSL Drain Valve

-503D22 789C53 TEC36003 MCC 18-1A, B1 M0-1-220-90B, 1B MSL Drain Valve 503D22 789C53 TEC36003 MCC 18-1A, J1 MO-1-220-900, ID HSL Drain Valve 503D22 789C53 TEC36003 HCC 18/19-5, C2 H0-1-202-9A, 1A Recirc X-tie Bypass Valve.

503D31 790F21 THQL1115 18-1A-1, B3 Bkr. #1, RCIC Gland Seal Vac, Pmp.

503D31-790F21 THOL1115 18-1A-1, B3 Bkr. #15, ARM Sys. Alarm 790G21 790G21 THQL1120 18-1A-1, B3 Bkr. #18, H -02 DH Heat Tracing 2

~90G21 790G21' THQL1120 18-1A-1, B3 Bkr. #23, H -02 Torus Heat 2

Tracing.

790G21 790G21 THQL1120 19-1-1, C1 Bkr. #18, H -02 DH Heat Trace 2

790G21 790G21 THQL1120 19-1-1, C1 BKR. #20, H -02 Torus Heat 2

Tracing.

N/A 794E04 THE0136015HL 18-1A, H3 H -02 Sample Pump 2

N/A 794E04 THED136015HL 19-1,-E4 H -0. Sample Pump 2 2 507C81 791G88' FA3035 MCC IB, COMP 01 RCIC Cooling Water Lube Oil Cooler

e and M0-1-1301-62 507C81 791G88 FA3035M MCC IB, COMP M1 'M0-1-220-2, MSL Drain Outboard Isolation Valve 502G40 789053 TEC36007 MCC 19-1, E3 M0-1-1201-80, RHCU to "A" FH Line 507C82 791H88 FA3190M MCC 1A, J1 M0-1-2301-36, HPCI Upstm Suction from Torus ZNLD608/7

^ - - - - - -

ATTACNMENT 2 NON-TRACEABLE BREAKERS REPLACED ON UNIT ONE INSTALLED-NEW SI #

SI #

HQQ1L_g LOCATIO.8 APPLICATION 500G54 789851 TED134060 18-2, C1 125V Battery Charger IA.

503021 789E53 TEC36015 MCC 19-1-1, A3 UNASSIGNED 503022 789C53 TEC36003 MCC 18-1A, B1 SPARE 503022 789C53

.TEC36003 MCC 18/19-5, B3 SPARE ZNLD608/6 1

t

4 ATTACHMENT 3 INSTALLED NON-TRACEABLE BREAKERS REPLACED DURING UNIT THO CYCLE 10 REFUEL DUTAGE

> INSTALLED' NEH HODEL SI#

_11g__-

LOCATION APPLICATION 767A57 791E89 P1515 PNL 2252-81A Comsip Delphi Panel, H &O2 2

Monitor Instruments & Controls 2A 767A57 791E89 P1515-PNL 2252-818 Comsip Delphi Panel, H &O2 2

Monitor Instruments & Controls 2B NA 791F89 Q00120-PNL 2252-102 Heat Trace-Drywell & Suppression (2= Breakers)

Chamber Sample Lines 2A-(Unit 2 Div I)

• .NA-

.791F89 Q0U120 PNL 2252-103 Heat Trace-Drywell & Suppression

-(2-Breakers)

Chamber Sample Lines 2B (Unit 2 Div II) 500F22 789F52-TFJ236125 MCC 28/29-5,C1 M0 2-1001-28A, 2A-RHR Outboard Injection Isolation Valve 500F22'

'789F52.TFJ236125 MCC 28/29-5,F1 MO 2-1001-28B, 28 RHR Outboard-Injection Isolation Valve 500F22

-789F52 TFJ236125' MCC 29-3,E4 Main Turbine Turning Gear 011 Pump-1500G54-789B51 TED134060 MCC 29-2,02 125 v Battery Charger #2

'502G39L 789C53' TEC36003 MCC 28-1A,El M0 2-302-10, CRD Cooling Hater Pressure Control Valve t

.-502G39 789C531 TEC36003 MCC 28-1A,F4 M0 2-220-90C,'2C MSL Drain Valve f

502G39-789C53 TEC36003 MCC 28-1A,G3 M0 2-220-900, 20.MSL Drain Valve 1

502G40 1789D53 TEC36007

_MCC 28-1B,84 M0 2-1001-5A, 2A RHRSH Heat Exchanger FCV

'502G40' 789053 TEC36007 MCC 29-1,H3 M0 2-1001-186B, 2B RHRSH Heat i

Exchanger Reverse' Inlet Valve o

ZNLD608/8 l

o

5 ATTACHMENT 3 (continued)

INSTALLED-NEH MODEL d1#

_11#

._._LQCAIl0lL_

_idP_LICAIl0N 503022 789C53 TEC36003 MCC 28-1A-1.01 Spare

-503022 789C53 TEC36003 MCC 28-1A-1,03 Unassigned 503022 789C53 TEC36003 MCC 28/29-5,C2 M0 2-202-9A, 2A Retirc Crosstle-Bypass Valve l-503022 789C53 TEC36003' MCC 28/29-5,F2 M0 2-202-9B, 2B Recirc Crosstie L

Bypass Valve 503022 789C53 TEC36003 HCC 29-1-1,B2 Unassigned 503E55 789G53 TEC36050 MCC 28-1B,C2 M0 2-1001-50, RHR Shutdown Cooling Inboard Isolation Valve 503E55 789G53 TEC36050 MCC 28/29-5,84 M0 2-1001-29A, 2A RHR Inboard

^

Injection Isolation Valve 503E55 789G53 TEC36050 MCC 28/29-5,E2 M0 2-202-5B, 2B Retirc Pump 2B Discharge Valve.

503E55 789G53 TEC36050 MCC 28/29-5,E4 M0 2-1001-298, 2B RHR Inboard Injection Isolation Valve

.503E55'

.789G53 TEC36050 MCC 29-4,A4 1/2-7506A SBGT Fan 770004 789C51-TE0136070- MC: 29-4,E2.

1/2-7503A SBGT' Heater H &Op Monitor Sys Suppression 790G21 789G21 THQL1120 MCC 28-1A-1,83 2

. Cham 6er Line Heat Trace H &O2 Monitoring DH Line 790G21

-790G21 THQL1120 LCC 28-1A-1,B3' 2

Heat Trace 790G21 790G21 THQL1120 MCC 29-1-1,C1 Breaker 21, H &O2 Monitoring 2

DH Line Heat Trace 790G21 790G21 THQLil20 MCC 29-1-1,C1 Breaker 24, H &O2 Monitor Sys.

~

2 Suppression Chbr. Line Heat Trace ZNLD608/9 l

ATTACHMENT 4 INSTALLED NON-TRACEABLE BREAKERS NOT REPL/CED DURING UNIT TWO CYCLE 10 REFUEL OUTAGE INSTALLED NEW H0 DEL S!#

_SIL_

UNil LOC 6110L RP11CA110N

__767A57 791E89 P1515 1

PNL P251-81A Comstp Delphi Panel, H &Op 3

Honitor Instruments & Controls 1A L

767A57 791E89 P1515 1

?NL 2251-81B Comsip Delph1 Panel, Hp&Op Honitor Instruments & Controls 1B

• NA 791F89 00U120 1

PNL 2251-102 Heat Trace-Drywell & Suppression (2 Breakers) Chamber Sample Lines in (Unit 1 Div I)

• NA 791F89 00U120 1

PNL 2251-103 Heat Trace-Drywell & SJppresslon L

(2 Breakers) Chamber Sample Lines IB (Unit 1 Div II)

NA 791G96 THED136015 2

HCC 28-1A, Post LOCA Containment H &O2 2

Cub. G4 Honttor Sample Pump 2A NA 791G96 THED136015 2

MCC 29-1A, Post LOCA Containment H &O2 2

Cub. C2A Honitor Sample Pump 2B m-

-ZNLD608/10 s

--imummme

-