ML19339B611
| ML19339B611 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 10/24/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Counsil W NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| NUDOCS 8011070326 | |
| Download: ML19339B611 (1) | |
Text
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NUCLEAR REGULATORY COMMISSION
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REGION I
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8 631 PARK AVENUE
%, ' V,8 KING OF PRUSSIA, PENNSYLVANIA 19406 October 24, 1980 Docket No. 50-423 Northeast Nuclear Energy Company
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ATTN:
Mr. W. G. Counsil C
Senior Vice President - Nuclear Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101
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Gentlemen:
The enclosed Supplement No. 3 to IE Bulletin 79-01B, " Environmental Qualifica-tion of Class 1E Equipment, is forwarded to you for information.
It clarifies two issues raised by Supplement No. 2.
These are (1) the submittal if qualif-ication information for equipment resulting from TMI Action Plan requirements and (2) the qualification of equipment which is required to achieve a cold shutdown condition.
This action is a result of industry feedback to NRC regarding interpretation of Supplement No. 2.
No written response is required.
If rou desire additional information regarding this matter, please contact
'ar, s office.
Sincerely, r
f 8 ce H. Grier Director
Enclosures:
1.
Supplement No. 3 to IE Sulletin No.79-018 2.
List of Recently Issued IE Bulletins CONTACT:
- 5. D. Ebneter (215-337-5283) cc w/encis:
K. W. Gray, Supervisor of Quality Assurance H. R. Nims, Director of Nuclear Projects E. J. Mroczka, Station Superintendent J. R. Himmelwright, Licensing Safeguards Engineer
- 0. G. Diedrick, Manager of Quality Assurance 8011070224 O
SSINS N2.:
6820 Acc:ssicn Ms.:
8008220248 IEB Sup #3 to 79-01B UNITED STATES NUCLEAR REGULATORY COMMISSION h
g 0FFICE OF INSPECTICN AND ENFORCEMENT WASHINGTON, D.C.
20555 October 24, 1980 i
IE Bulletin No. 79-018 Supplement No. 3:
ENVIRONMENTAL QUALIFICATION OF CLASS IE EQUIPMENT Description of Circumstances:
~
Two issues were raised by Supplement No. 2 which require clarification.
These i
are:
(1) the dates required for submittal of qualification information for TMI related equipment, and (2) whether the equipment required to achieve a Cold Shutdown condition must be environmentally qualified if the licensing basis for the plant was a Hot Safe Shutdown condition.
(1) Supplement No. 2 (Q.1, Q.5) addressed the minimum cold shutdown require-ments.
The staff position on this issue is that the licensee must identify and environmentally qualify the equipment needed to complete one method (path) of achieving and maintaining a cold shutdown condition. The equipment of other paths must be reviewed to assure that its failure will not aggravate or contribute to the accident (ref.
Q.5 Supp. No. 2).
Due to an inconsistency between Supplement No. 1 and Supplement No. 2, the staff position on this issue was unclear.
Therefore, the following will apply:
q a.
The qualification information for equipment needed to achieve and maintain a Hot Safe Shutdown condition must be submitted not later than November 1, 1980.
b.
The qualification information for equipment required to achieve and maintain a Cold Shutdown condition (ref. Q.1 and Q.5 of Supplement No. 2) must be submitted not later than February 1,1981.
(2) IEB 79-018 required a 90 day response which was due in mid-April 1980.
i Supplement 1 (Feb. 1980) informed licensees that equipment which was
" planned" to be installed as result of lessons learned need not be 1
addressed in that response.
Some of this equipment has since been i
installed.
Supplement No. 2 (Q.5, Q.21) identified that the staff posi-tion was that equipment which is installed should be treated in a manner similar to all other safety-related electrical equipment and be addressed in the November 1, 1980 submittal. 'This position represents no change in staff position regarding the scope of the review.
However, since the staff position on this issue was unclear the following will apply:
a.
Qualification information for installed TMI Action Plan equipment must be submitted by February 1, 1981.
b.
Qualification information for future TMI Action Plan equipment (ref.
NUREG-0737, when issued), which requires NRC pre-implementation review, must be submitted with the pre-implementation review data.
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IEB 79-01B Sup #3 Oct:bar 24, 1980 Page 2 of 2 c.
Qualification information for TMI Action Plan equipment currently under NRC review should be submitted as soon as possible.
d.
Qualification information fo.' TMI Action Plan equipment not yet installed which does not require pre-implementation review should be submitted to NRC for review by the implementation date.
The above items 1 and 2 represent no change in staff position regarding the scope of the 79-01B Supplement 2 review.
IE Bulletin No.79-01B was issued under a blanket GAO clearance (B180225 (R0072), clearance expired July 31, 1980) specifically for identified generic problems.
Supplement No. 3 to Bulletin 79-018 is for information, hence no GAO clearance is required.
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IE Bulletin No.79-01B Supplement No. 2 October 24, 1980 RECENTLY ISSUED IE BULLETINS Bulletin
_ Subject Date Issued Issued To No.
Supplement 3 Environmental cualifica-9/30/80 All holders of a to 79-013 tion of Class 1E power reactor Equipment OL or CP 80-22 Automation Industries, 9/12/80 All holders of a Model 200-520-008 radiography license 80-21 (NotUsed)
Revision 1 Baron Loss from 8/29/80 All holders to 79-26 BWR Control Blades of a BWR power reactor CL Revision 1 Failures of Mercury-8/15/80 All holders of a to 80-19 Uetted Matrix Relays in power reactor Reactor Protective OL or CP Systems of Operating Nuclear Power Plants Designed by Combustion Engineering 80-20 Failures of Westinghouse 7/31/80 All holders of a Type N-2 Spring Return to power reactor OL Neutral Control Switches or CP 80-19 Failures of Mercury-7/31/80 All holders of a Wetted Matrix Relays in power reactor OL Reactor Protective Systems or CP of Operating Nuclear Power Plants Designed by Ccmbustion Engineering 80-18 Maintenance of Adequate 7/24/80 All holders of a Minimum Flow Thru PWR power reactor Centrifugal Charging Pumps OL or CP Following Secondary Side High Energy Line Rupture Supplement 3 Failure of Control Rods 8/22/80 All holders of a to 80-17 to Insert During a BWR power reactor Scram at a BUR ~
OL or CP Supplecent 2 Failure of Centrol Reds 7/22/80 All holders of a to 80-17 to Insert During a Scram BWR power reactor OL at a BWR
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