ML17277A800
| ML17277A800 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 09/07/1983 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Mazur D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| TAC-55579, NUDOCS 8309220149 | |
| Download: ML17277A800 (6) | |
Text
sEp 7
1983 Docket No.: 50-397 Mr. D.
W. Mazur Managing Director Washington Public Power Supply System P. 0.
Box 968 3000 George Washington Way Richland, Washington 99352
Dear Mr. Ferguson:
Subject:
WNP-2 Request tor Additional DISTRIBUTION;
~Document Control NRC PDR Local PDR NSIC PRC LB¹2 File RKendall RAuluck (ACRS 16)
EHylton
- ELJordan, DE(A:IE
- JMTaylor, DRP:IE
- Paton, OELD Region V
Information During our review of the Instrument 8 Control Systems Branch's portion of Technical Specifications for WNP-2, we found that you have not demonstrated the acceptability of the methodology used to combine and account for instrument channel errors in establishing the trip setpoints and allowable values that appear in the proposed Technical Specifications.
We request that you provide the information identified in Enclosure 1
as soon as possible.
This information is needed prior to initial licensing.
Also, we request that you provide the additional information identified in Enclosure 2 as soon as it can be obtained, but no later than six months after initial licensing.
This delay in responding to Enclosure 2 is pre-dicted on your providing assurance that the existing trip set points have been established taking into account combined channel errors such that the established safety limit will not be exceeded should a nominal combination of these errors be present.
To maintain our licensing review schedule for the WNP-2, please provide responses to the enclosed requests by September 23, 1983.
If you desire any clarification, please contact Raj Auluck at (301) 492-8547.
Sincerely, Original signed by
Enclosures:
As stated A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing cc w/ enclosure:
See next page
- SEE PREVIOUS CONCURRENCES DL:LB¹2/PM
PDR ICSB*
RKendall
ls l
II "
Docket No.: 50-397 Mr. D.
W. Mazur Managing Director Washin ton Public Power Supply System P. 0.
B 968 3000 Georg ashington Way
- Richland, Was ngton 99352
Dear Mr. Ferguson:
Subject:
WNP-2 Reque for Additional Information During our review of the strument 5 Control Systems Branch's portion of Technical Specifications or WNP-2, we found that you have not demonstrated the acceptabilit of the methodology used to combine and account for instrument channel rors in establishing the trip setpoints and allowable values that appear the proposed Technical Specifications.
D We request that you provide the infor tion identified in Enclosure 1
as soon as possible.
This information needed prior to initial licensing.
Also, we request that you provide the ad 'tional information identified in Enclosure 2 as soon as it can be obtaine but no later than six months after initial licensing.
This delay in respo ding to Enclosure 2 is pre-dicted on your providing assurance that the ex ting trip set points have been established taking into account combined ch nel errors such that the established safety limit will not be exceeded sho d a nominal combination of these errors be present.
To maintain our licensing review schedule for the WNP-, please provide responses to the enclosed requests by September 23, 198
. If you desire any clarification, please contact Raj Auluck at (301) 49 -8547.
Sincerely,
Enclosures:
As stated A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing cc w/ enclosure:
See next page
- See previous concurrence on attached page DL:LBa2/PM DL:LBZ2/BC S@g RAuluck:pt ASchwencer 9/06/83 9/
/83
1 V
'l fy N
Oocket No.: 50-397 Mr. D. l. Mazur Managing D'ctor Washington P lic Power Supply System P. 0.
Box 968 3000 George Washy ton Way Richland, Washingto 99352
Dear Mr. Ferguson:
Subject:
WNP-2 Request f Additional Information During our review of the Ins ument 8 Control Systems Branch's portion of Technical Specifications fo WNP-2, we found that you have not demonstrated the acceptability o
the methodology used to combine and account for instrument channel er rs in establishing the trip setpoints and allowable values that appear in the proposed Technical Specifications.
We propose the following actions to re lve these concerns (I) provide additional information requested in Encl ure I (2) condition the license (Enclosure
- 2) to require a submittal which will include a discussion on the setpoint methodology with justification or each assumption.
To maintain our licensing review schedule for e WNP-2, please provide responses to the enclosed requests by September 3, 1983.
If you desire any clarification, please contact Raj Auluck at
(
I) 492-8547.
Sincerely,
Enclosures:
As stated A'. Schwencer, Ch ef Licensing Branch o.
2 Division of Licen ing cc w/ enclosure:
See next page
'kdiPM DL:LB¹2/Bc luck:pt ASchwencer 9/ 5 /83 9/
/83
l4 lg n
'I p h
F