05000206/LER-1988-001, Forwards Revised Environ Qualification Master List for Electrical Equipment to Address Deficiencies in LER 88-01. All Environ Qualification Deficiencies,Identified During mid-cycle Maint Outage,Corrected or Resolved

Forwards Revised Environ Qualification Master List for Electrical Equipment to Address Deficiencies in LER 88-01. All Environ Qualification Deficiencies,Identified During mid-cycle Maint Outage,Corrected or Resolved

ML20127C164
Person / Time
Site:	San Onofre
Issue date:	12/31/1992
From:	Marsh W SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9301140020
Download: ML20127C164 (9)

LER-2088-001, Forwards Revised Environ Qualification Master List for Electrical Equipment to Address Deficiencies in LER 88-01. All Environ Qualification Deficiencies,Identified During mid-cycle Maint Outage,Corrected or Resolved

Event date:
Report date:
2062088001R00 - NRC Website

text

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Southem Califomia Edison Company 73 f 5Ar4KL H $1 HEIT IOVINf. GALIF OHt41 A 9271ft December 31, 1992 ,_

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U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Gentlemen:

Subject:

Docket No. 50-206 Environmental Qualification of Electrical Equipment San Onofre Nuclear Generating Station, Unit 1

References:

1) LER 88-01 (Docket No. 50-206), " Environmental Qualification Program Deficiencies," dated March 30, 1988.

2) Letter, M.O. Medford (SCE) to USNRC Document Control Desk, " Environmental Qualification of Electrical Equipment," dated July 9, 1988.

3) Letter, Charles M. Trammell (HRC) to.Mr.

Kenneth P. Baskin (SCE), " Environmental Qualification of Electrical Equipment," dated July 29, 1988.

Licensee Event Report (LER) 88-01 (Reference 1) described deficiencies in the San Onofre Unit 1 Environmental Qualification (EQ) program. The deficiencies described in the LER were due to an incomplete EQ master list and were discovered during a mid-cycle maintenance outage conducted between February and August, 1988. Following submission of the LER, an update of the progress in resolving the deficiencies was provided in Reference

2. However, since that letter was submitted, but prior to the end of that outage, several additional items wero found which

- were not included in-the letter. We indicated in the LER that an-update would be provided if additional discrepancies were dir overed. This letter provides the final update of the listing of deficient instrumentation from References 1 and 2. . All EQ deficiencies identified during the outage were corrected or-resolved and NRC approval was received (Reference 3) prior to restart from-the outage.

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The enclosure provides throo tables which updato the information provided in the references. The changes are marked with bars in the margins. Table 1 lists items required to be environmentally qualified in accordance with 10 CFR 50.49b(1). Tables 2 and 3 list equipment required to be environmentally qualified by 10 CFR 50.49b(2).

A revision to the initial LER could be submitted to provido more information on the affected instruments, including detailed information regarding their use and safety significance. However that will not be donc in this caso. Although the number of additional instruments was small compared to the list provided in the July 9, 1988 lotter, and would bo expected to be individually of low safety significance, the resource commitment by Southern California Edison and the NRC staff to do the usual evaluation of the relatively largo number of complicated-interactions is unwarranted for a unit which is now permanently shutdown.

Thorofore, the enclosed tables provide final NRC notification of the extent of the EQ deficiencies discovered during that outage.

As previously indicated, all identiflod EQ discrepancies woro corrected or resolved prior to restart from that outago. If you have any questions regarding this information, pleano contact me, sincoroly,

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Enclosure cc: J. B. Martin, Regional Administrator, NRC Region V.

C. W. Caldwell, NRC Senior Resident Inspector ,

J. O. Bradfuto, NRC Project Manager, San Onofre Unit 1 l

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Table 1 10 CFR 50.49 b(1) Equipment Device Descriptioll Corrective Action MOV 1202 AFW Pump Discharge Valve Added to EQML MOV 1204 AFW Pump Discharge Valve Added to EQML HY 1304 Charging Pump to Loop A Replaced and Isolation Valve CV 304, Actuator Added to EQML ZSO/C 1304 Limit Switches for CV 304 Repleced and Added to EQML HY 1305 Charging Pump to Press Aux. Spray Added to EQML 1 solation CV 305 Valve, Actuator =

ZSO/C 1305 Limit Switches for CV 305 Replaced and Added to EQML PT 459 Mainsteam Line Pressure input to Added to EQML Steam-feed Mismatch Trip FY 1112 Charging Pump flow Control Valve FCV Added to EQML 1112, 1/P Transducer SV 1112 Solenoid Actuator for FCV 1112 Replaced and Added to EQML TS 34, 35 feedwater Pump Lube Oil Added to EQML Temperature Elements for Cooler fans E-17A, B Feedwater Pump Lube Oil Cooling fans Added to EQML SV 17, 17A Feedwater Pump Miniflow to Condenser, Replac2d and Isolation Valve Actuators Added to EQML SV 18, 18A Feedwater Pump Miniflow to Condenser, Added to EQML, -

Isolation Valve Actuators Repla:ed and Added to EQML SV 524, 5, Pneumatic Supply Solenoids for Replaced and 6,7,8,9, feedwater Pump SI Alignment Valves Added to EQML 30, 31 SV 875A, B Feedwater Pump SI Miniflow to Replaced and Refueling Water Storage Tank, Added to EQML 1 solation Valve Actuators ZSO/C 1875A, limit Switches for SV 875A, B Replaced and B Added to EQML SV 955, 6, 7 Primary System Sample Containment Replaced and Isolation Valve Actuators Added to EQML SV 1115DA, Containment Recirculation flow Replaced and DB, EA, EB, Control Valve Pneumatic Supply Added to EQML FA, FB Solenoids

Table 1 10 CFR 50.49 b(1) Equipment (Continued)

Device Description Corrective Action SV 2900, Bonnet Vent Solenoid for feedwater Added to EQML 3900 Pump St Alignment Valves SV 520, 1, 2 Pneumatic Supply to feedwater Pump SI 4eplaced with 3 Alignment Valves check valves SV 135 Service Water to AfW Pump Bearing Replaced with Solenoid Valve check valve CV 2145 Charging Pump Discharge _ Sample Valve Replaced and '

Added to EQML FT 21148, C, Containment Recirculation Flow Added to EQHL i 3114A Transmitters i FY 11150, E, Containment Recirculation Flow Added to EQML F Control Valve Transducers

• T 14A, B Residual Heat Removal Pump Thermal Relocated Overload Devices ,

T 45A Containment Recirculation Pump Relocated Thermal Overload Device XO7, 8 Station Service Transformers Added to EQML t

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Table 2 4

10 CTR 50.49 b(2) Equipment (b) (b)(2) Device (b)(1)(quip 0*v{2)ce .htsc r ipt ion _ ib)(1)(ag!LS:01 ,tescriptfon Coerective Act l.23 .

WPt.1 fransformer for SV 7025, D Position Containment Fusa 1soletten/

Indication for 1601stion Valve Removal

$V1028, D Position Inditation VPS*2 Iransforwer for SV 102A, C Position Containment Fuse tsalation/

Indication for Isolation Valve Removal-5V102A, C Position Indication 5V 600 Spray Hydratine Sv533A 250/C 2533 Service Water and fuse isolation 250/C2600 1 solation valve and limit 5Vh31A 150/C !$31 kWktup Water Switches Containment Isolation Yalves and Limit Switches FV.2011, Service Water to Recirculation G4bA, 8 Control Contelnment Fuse Isolation 3078 Pump Bearings Ci rcuit s _ Recirculation panps SV 601 5 prop Pydrasine Isolation Valve $V126 150/C 3115 Service Water, fuse isolation FA0/C 2601 and timit $ witches 5V532 150/C 153? hitrogen and Maketr

$Y 534A 250/C 3534 Water Containeent isolation Valves i and Limit Switches SV 951 Primary System sample 250/C 2951 Position Indicat6cn Fuse Isolation Containment isolation Valve Act6ator SV 953 Primary System sample ISO /C 2953 Pcsttion Indication fuse Isolation Containment isolation Valve Actaator SV 962 Primary Systes sample 750/C 2962 Position Indication Fuse Isolation Coetainment isolation valve Ac tuator PCVa30*, Pressuriter Aua. Spray and HV 1304 Charging Pump . fuse Isolation HCV 111) (acens tetdown Isolation valves Discharge Isolatire Valve Actuator Numidity Containment High Humidity Alaru $V28, 9, 30 Containment fuse Isolation BrtJge and Ventilation Amplifier Isolation valve Actuators TV 5112 Charging Purp Discherpe FCY 1112 Charging Pump Open Breaker

, Isolation Yalve Actuator. Discharge Isolation Valve PV 5$30,$$46 PORY and Block Valve Actuators CV 530, 546 PORY and block - Open Breaker Valve TV lil5A, B, Containment Recirculation Flow IV 1115D, E, f Containment Replaced, Added to C Control Valve Transducers Recirculation flow . (QML Corttel Valve train A Transducers SV20, P5 80_ Turbine Plant Cooling Water Hx G6N(Note 1) Igrbine Plant Install' Fuse, Flow Control Valve %olenold and Cooling Water Pump Isolate 3- Pump Discharge Pressure Switch SV21, PS.Bl Turbine Plant Cooling Woter Hs G65(hote1) Turbine Plant Install Fuse, flow Control Valve Solenoid and. Cooling Water Pump Isolate Pump Discharge Pressure Switch

$V26 Circulating Water Pump G4A(Note 1) Circulating Water Install fuse, Discharge Control valve Pump Isolate Solenoid

$V27 Circulattnq Water Pump G4B(Note 1) Ctreulating viter Install Fuse -

Discharge Control Valve Pump !sola'e.

Solenoid

_ . _ _ . _ _ _ _ . _ _ _ _ . _ _ . ._._._..___._m

, q i

e Table 2

• 10 CFR 50.49 b(2) Laidpment (Continued) +

(t>)(2) (e)(2) Device (b)(1) Corrective  ;

Orvi. C t ltstriction _ tav.ipernt- fit 1f11 twiemt Descrietion Actfon j I

NfR 1.F.) Press. Instr. Labinet NY.1287 tacess Letdown 1soittion Removed 4 Acater 1305 Control Valve Solenoid Valve 75C/0 1787 Pressurlier Aua. Spray C)ntro)

1305 Valve Solenold Yalve T!C.436A.B.C Ness. trstr. Cabinet HY.1?B7 Estess Letdown Isolation Removed ,

Temp. Controller 1305 Contro, Valve $olenoid Valve 25C/0 1287 Pressu.iner Aua. Spray Control '

1305 Valve So'enoid Valve >

IIC.437A.B.C Frest. Irm r. *abinet M 1287 [acets Letnown Isolation Reh.ved .

Hl.lo Teen. Alace -1305 Control Valve $^1enoid Yalve  !

15C/0 lt87 Pressuriter Aun. $ pray Control 1305 Valve $olanoid Yelve t

Charging Flow Control Valve Oe.inergited H$.5112 Charging Flow $V*1112 Control Valve Hand Solenoid Valve per 101 10 7 Sw tch i H$.5546 Pressuriger Power PY.2530 Pressuriter Power Operated De.thergised E Operated Relief Velve 2546 Reitef Yalve $olenoid Valve pr' 501 10 7 kand Switch ,

$V.11140 Air Supply to SV. $V+1116AD. RCP 5eal Supply Control Bypass Removed 1115AD. DA. DB DA. 08 Valves solenoid valves SV 1114! Air Supply to SV. $v.1115Bt. RCP seal supply Contro) Bypass Removed 11158E. IA. 1B (A. IB Valves Solenotd Valves 5V.1114F Air Supply to IV. $V.1115CF. RC/ $eal SepN y Control Bypass Removed I 1115CF FA, FD FA. TB valves Solenoid Valves ,

I tsp 0 1 0 Sphere Coolleg & SY48. 29 30 $phere vent Control Valve Rewired

?O filtering Normai 23C/04009P iolenoid Valve & Limit 50 Filter Damper A lt 2010 Switches 70 Switch .?010P $3here Purge A?r supply Valve Solenoid Valve & Limit Switches

- Sphe.e Perge A h Outlet Val u

. Solenoid Valve k Limit

- _ sultches. --

L5P0 2 0 5phere Cooling & 57 4 8. 29. 30 1phere Vent Control valve Pewired 40 ftitering SC/0 2009P Solenoid Valve n Limit 60 Radiosctive filter 4010 swittnes 00 Camper Limit Switch 40WP 1phere Purge Air Surply Valve solenoid valve & Limit

$ aitches .

Sphere Purge Air Outlet Valve iolenoid Vtive & Limit Switches l'V.46 Condenser [4A North Bus B04 . 480V Dus 1 Fused Air Removal Contro) l Valve CV 59 Coranser (49 North Bus (604 480V.Su 1 Fused Air Removal Control Valve

- CV.58 Condenser [4A South Bus 80$ - 4(OV Dus 2 - Fused Air Removal Control Valve CV.49 Condenser E 4B South Bus BC5 480V Bus 2 Fused Air Removal Control

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n Table 2 10 CFR 50.49 b(2) Equipment-(Continued)-

(b)(2) (b)(2) Device (b)(1) Equip i Device Deserletion (b)ft) (autr> ment Descriptiot forrective Action ,

SV-62, P5 53, service Air System Solenoid KIA (Note 1) Al' Compressor Install Fuse, P5-56, 15 15 Valve, Pressure Switch and Isolate Temperature Switch SV 63, PS 54, service Air System Solenoid KlB(Note 1) Air Compressor Install Fuse, P5 57. T5 16 Valve, Pressure Switch and Isolate Temperature Switch SV-64, PS 55, Service Air System Solenoid iCIC (Note 1) Air Compressor Install Fose.

P5-58. TS-17 Valve, Pressure Switch and Isolate-Tempe nture Switch PS-1, dps-9 Condenser Vacuuia Pump Pressure X7A (Note 1) Condenser Vacuum Install Fuse, SV-7. PS-26 Switches and Solenoid Valves Pump Isolate 5V 41, SV-69 P5-2, dps 10 Condenser Vacuum Pump Pressure 179 (Note 1) Condenser Vacuum Install fuse, SV-8. PS 27 Switches and Solenoid valves Pump Isolate SV 42, SV-70 LS-0. LS-10 Feedwater Hester Level Sensors G36A, G368 Heater Drain rump _ Install Fuse, (Note 1) Isolate F5 136. P5-44 Turbtne tube Oil Pressu-e G29(Note 1) Turbine Aux. Lube Install Fuse, Switches Oil Pump Isolate 86-M3 1, 515-LOP Lockout Relays B03 (Note 1) MCC #3 Install Fusest 86-M 3-2 Isolate and remove 86-M3-3, automatic cross 86-M3-4, connect with 50-1 6 Switchgear 2 on 515-LOP LT-451 Wide and harrow Range 5-3 Level Ft 458, 462 Feedwater and Steam Add Fuse LT-455 Transmitter Flow Transmitters l

l' LT-452 Wide and Narrow Range SG Level FT 456, 460 Feedwater and Steam Add Fuse LT-453 Transmitter Flow Transmitters LT-450 Wide and Narrow Range SG Level FT 457, 461 Feedwater and Steam Add Fuse LT-454 Transmitters Flow Transmitte=s- >

TIC-Ill0 Boric Acid System Ter;erature FY 1112, .

Transducers for FCV Add Fuse i- TIC-Il08N Controller, Heater Switch and FY 1115, C, E F 1112 and FCV 1115

1. FT-1102B Flow Controller 0, E and F l

i NOT[5:

(

l' 1. Equipment identified is not b(1), but is de-energized on a $15 LOP. The b(2) device failure could impact this tripping function and therefore emergency diesel generator loading under a 515-LOP condition.

1

Table 3 10 CFR.50.49 b(2) Equipment From Fuse Coordination Study-(b)(2) Associated. (b)(1) Fuse Coordination fguipment _

Eauipment Resolution LCV 1112 FY 1203, ZSO/C 1203, HY 1304, ZSO/C 1304, Coordinated FY 1202, ZSO/C 1202, FY 1204, ZSO/C 1204, FY 1203, ZSO/C 1203, HY 1304, ZSO/C 1304, SV 225 Replaced.

FY 1202, ZSO/C 1202, FY 1204, ZSO/C 1204, SV 276 HY 1287, ZSO/C 1287, Coordinated HY 1305, ZSO/C 1305 SV 288 HY 1287, ZSO/C 1287, Coordinated HY 1305, ZSO/C 1305 TCV 1105 HY 1287, ZSO/C 1287, Replaced HY 1305, ZSO/C 1305 LCV 1100A HY 1287, ZSO/C 1287, Replaced HY 1305, ZSO/C 1305 SV 544 HY 1305, ZSO/C 1305 Coordinated HY 1287, ZSO/C 1287, SV 412 SV 411, ZSO/C 1411 Coordinated SV 410, ZSO/C 1410 SV 413 SV 411, ZSO/C 1411 Replaced SV 410, ZSO/C 1410

- SV 414 SV 411 ZSO/C 1411 Replaced SV 410, ZSO/C 1410 RCV 605 SV 411, ZSO/C 1411 Coordinated-SV 410, ZSO/C 1410 HCV 602 SV 411, ZSO/C 1411 Coordinated

~ SV 410, ZSO/C 1410

. TCV 601A SV 411, ZSO/C-1411 Coordinated SV 410, ZSO/C 1410 TCV 6018  :

SV 411, ZSO/C.1411 Replaced '

SV 410, ZSO/C 1410 P0 1, 2, 3,- ZSO/C.2009, ZSO/C 2010, Coordinated i 4, 5, 6,-7,-8 SV 28, SV 29, SV.30 P0 13, 14, ZSO/C 2009, ZSO/C 2010, Coordinated i 15, 16, 21 SV 28, SV 29, SV-30' PCV 1115A HY 1305,.ZSO/C'1305 Replaced HY 1287,-ZSO/C 1287 f i

, c w -. . - - - - ,- w 4 ., , , , -

-.- +

Table 3 10 CFR 50.49 b(2) Equipment from fuse Coordination Study (Continued).

fuse Coordination

~

(b)(2) Associated'(b)(1)  ;

[quipment Eauipment __

Resolution PCV-11158 HY 1305, ZSO/C 1305 Replaced

'HY 1287, ZSO/C 1287, PCV 1115C HY 1305, ZSO/C 1305 Replaced HY 1287, ZSO/C 1287, SV 99 ZSO/C 2009, ZSO/C 2010, Coordinated-SV 28, SV 29, SV 30 SV 2001, AEH22001, 3001, PE 2001, 3001, Coordinated 2, 3, 3001, TE2001, 3001, SV 2004, 3004, 2, 3 LE 2001, 3001, 2002A, B, C LE 3002A, B, C, PT 2001, 3001 SV 150, 151 HV 851A, 852A, 853A, 854A Relocated SV 457, 458 SV 524, 525, 526, 527 (Note 1)

Timer 62-1 LCV 1112 FY 1202, 1203, 1204 Coordinated SV 225 HY 1304 (Note 1)

SV406A, B

! SV 149 HV 8518, 852B, 8538, 854B -C'oordi nated -

SV 427A, B, C SV 528, 529, 530, 531 (Note 1)

SV 456 NOTES:

1. Failure of b(2) device could impact b(1) loads fed from the same breaker;

j. position.

l l

, . . . . -- ,.