ML18139C248
| ML18139C248 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 02/23/1983 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Varga S Office of Nuclear Reactor Regulation |
| References | |
| 085, 85, NUDOCS 8302280202 | |
| Download: ML18139C248 (3) | |
Text
e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 W. L. STEWART VICE PRESIDENT NUCLEAR 0PEBATI0N3 Mr. Harold R. Denton, Director February 23, 1983 Office of Nuclear Reactor Regulation Attention:
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D. C.
20555 Gentlemen:
Serial No.
PSE/JEW:neh Docket Nos.:
License Nos. :
TECHNICAL EVALUATION REPORTS 085 50-280 50-281 DPR-32 DPR-37 ENVIRONMENTAL QUALIFICATION OF SAFETY RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 In a letter dated January 26, 1983, the NRC transmitted to Vepco the Safety Evaluation Report for the Environmental Qualification of Safety-Related Electrical Equipment at Surry Power Station, Unit Nos. 1 and 2.
This letter requested that Vepco reaffirm the justification for continued operation within thirty (30) days of receipt of the letter and submit information for NRC categories I.B., II.A and II.B (as presented in The Franklin Research Center Technical Evaluation Report -
TER) for which justification for continued operation was not previously submitted.
Further, in a telephone conversation with Mr. J. D. Neighbors, the NRC Project Manager for Surry Power Station, Vepco was requested to provide justification for continued operation for equipment in NRC Category II.B (TER) by February 23, 1983.
Attachments 1 and 2 provide the justifications for continued operations requested by Mr. Neighbors.
A response to the January 26, 1983 letter, with regard to justifications for continued operations, will be provided by March 9, 1983. :
Unit 1 Response :
Unit 2 Response cc:
Mr. James P. O'Reilly Regional Administrator Region II
--8302280202 -830223 PDR ADOCK 05000280 p
PDR Very truly yours, QL,~
~~- L. Stewart
- 1.
I i**
SURRY POWER STATION UNIT l RESPONSE e
. JUSTIFICATION FOR CONTINUED OPERATIONS Category II.B of The Franklin Research Center TER identified equipment that
. is not qualified (items 4 and 18).
The following addresses justification
- for continued ope rat ion for these equipment items
A.
Equipment Item 4 is identified as RCS wide range pressure transmitters, mark numbers:
PT-RC-1402-1 PT-1402 Justification For Continued Operation RCS, wide range pressur'e transmitters *provfd~-p~essure indicati.6n input for,use in heatup and cooldown and provides input to the subcooling monitor.
It*has no safety functions.
If the RCS wide range pressure transmitters fail, input from the RCS narrow range pressure transmitters can provide the necessary input to the subcooling monitor.
Additionally, there is a redundant wide range pressure channel with indication at the remote monitoring panel.
On the basis of the above, it is concluded that continued operation*
of the plant will have no effect on safety.
B.
Equipment Item 18 is identified as Steam Generator wide range level transmitters, mark numbers:
(-
LT-1477 LT-1487 LT-1497 Justification For Continued Operation*
The station emergency procedures require establishment of a water level in at least one (l} steam generator by indication in the narrow range or the wide range level transmitter span.
The wide range channel provides no safety function; it is used primarily for fi 11 ing and draining of the steam generators. A redundant set of environmentally qualified instrumen-tation (narrow range level transmitters} exists to provide the required indication.
On the basis of the above, it is concluded that continued operation of the plant will have no effect on safety.
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SURRY POWER STATION UNIT 2 RESPONSE JUSTIFICATION FOR CONTINUED OPERATIONS Category II.B of The Franklin Research Center TER identified equipment-that
. is not qualified {items 2 and 16). The following addresses justifications
. for continued operation for these equipment items:
A.
Equipment Item 2 is identified as RCS wide range pressure transmitters, mark numbers:
PT-RC-2402-1 PT-2402.
Justification For Continued Operation RCS wide range pressure transmitters provide pressure indication input for use in heatup and cooldown and provides input to the subcooling monitor.
It has no safety function.
If the RCS wide range pressure transmitters fail, input from the RCS narrow range pressure transmitters can provide the necessary input to the subcooling monitor.
Additionally, there is a redundant wide range pressure channel with indication at the remote monitoring panel~
On the basis of the above, it is concluded that continued operation of the plant will have no effect on safety.
B.
Equipment Item 16 is identified as Steam Generator wide range level transmitters, mark numbers:
LT-2477 LT-2487 LT-2497 Justification For Continued Operation
- The station emergency procedures require establishment of a water level in at least one (1) steam generator by indication in the narrow range or the wide range level transmitter span.
The wide range channel provides no safety function; it is used primarily for filling and draining of the steam generators.
A redundant set of environmentally qualified instrumentation (narrow range level transmitters) exists to provide the required indication.
On the basis of the above, it is concluded that continued. operation of the plant will have no effect on safety.
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