ML17277B188
| ML17277B188 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 12/13/1983 |
| From: | Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| GO2-83-1157, NUDOCS 8312200426 | |
| Download: ML17277B188 (8) | |
Text
REGULATORY ORNATION DISTRIBUTION SYS@
(RIDS)
ACCESSION NBR 58312200426
=
DOC ~ DATE.~ 83/12/13 NOTARIZED~
NO DOCKET FAGILt50 397 WPPSS Nuclear Projectr Unit 2i Washington ~Publ'ic Powe 05000397
'AUTH,NAME AUTHOR AF F IL'IATION SORENSENrG ~ CD Washington, Public Power Supply "System RECIP ~ NAME" RECIPIENT AFFILIATION SCHWENCERrA ~
Licensing Branch 2
SUBJECT Forwards revised -justification for equipment that, will not.
be'ismically qualified 'by fuel loadrt evising 831205 1-tr comm<tmehts, DISTRIBUTION CODE:
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Washington Public Power Supply System P.O. Box 96B 3000 George Washington Way Richland, Washington 99352 (509) 372-5000 December 13, 1983 G02-83-1157 Docket No. 50-397 Director of Nuclear Reactor Regulation Attention:
Mr. A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing U.S. Nuclear Regulatory Commission l<ashington, D.C.
20555
Dear Mr. Schwencer:
Subject:
NUCLEAR PROJECT NO.
2 EQUIPMENT SEISMIC QUALIFICATION 83i2200426 83i213 PDR ADOCK 05000397 PDR
Reference:
G02-83-1023, G.
C. Sorensen to A. Schwencer, subject as
- above, dated November 4, 1983 Attached find a revised justification for equipment that will not be seismically qualified by fuel load.
This revises completely our letter (G02-83-1116) of December 5,
1983.
You will note that you have already considered this equipment in the Environmental Justification for Interim Operation.
Very truly yours, G.
C. Sorensen, Manager Regulatory Programs GCS:JER:st Attachment cc:
R. Auluck, NRC W. S. Chin, BPA A. Toth, NRC Site
4 I
5.0 JUSTIFICATION FOR INTERIM OPERATION Alternate cooling water is provided to FPC-HX-lA through valves SW-V-187A and SH-V-188A.
Although fuel pool cooling is not required until the first refueling outage, the valves must remain closed in the interim so that operation of the Standby Service Water System would not be degraded.
The motor operators will be qualified prior to the first refueling outage.
Currently the motor operator s and valves are fully qualified except for the motors.
Review of the construction of the operator and limitorque test data on operators with similar motors identifies no fai lure mode of the motor that would cause the operator to open the valve or cause failure of the valve.
The motors will be kept de-energized until fully qualified.
6.0 CONCLUSION
Interim operation is justified on the following basis:
1.
SW-M0-187A,B and 188A,B are not required to operate post-accident since fuel pool cooling is.not needed prior to the first refueling outage.
2.
There is no failure mode of the motor that would cause SW-MO-187A,B and
- 188A, B to open their associated valves to an undesirable position or cause fai lure of the valves.
tl
EQUIPMENT JUSTIFICATION JIO-S-10A
- 1. 0 COMPONENT IDENTIFICATION EPN: 'W-M-187A, 188A, 187B, 188B SW-M0-187A, 188A,
- 187B, 188B
==
Description:==
Standby Service Water System Valve Motor Component Type:
Motor
'anufacturer/Model:
Limitorque Corp./SMB-00 2.0 ACCIDENT CONDITIONS h
Accident Profile:
Use Code:
Operability Time:
Radiation Zone:
Zone Dose:
Temperature 4320 Hours R548L 1.5xl0 Rads I
Relative Humidity
)Rev. 2 I
821X 3.0 COMPONENT SAFETY FUNCTION SW-MO-187A and 188A provide alternate cooling to the Fuel Pool Cooling (FPC)
System heat exchangers under abnormal plant conditions when the Reactor Building Closed Cooling Water (RCC) System is unavailable.
SW-MO-187A and 188A open valves SW-V-187A and 188A to provide Standby
.Service Water (SW) System cooling to FPC-HX-lA.
The series B EPNs provide the same function on the redundant FPC-HX-1B heat exchanger.
- 4. 0 QUALIFICATION STATUS 4.1 Summary of Qualification Status The motor operators were purchased qualified; however, unqualified motors were inadvertently used.
The vendor is scheduled to provide qualified replacement motors.
The following justification for interim operation is provided in the event that the motor operators are not replaced prior to fuel load.
4.2 Parameters Requiring Justification Temperature,
- pressure, humidity and radiation dose.
7183f/1
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