ML19339B624
| ML19339B624 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 10/24/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Dunn C DUQUESNE LIGHT CO. |
| References | |
| NUDOCS 8011070341 | |
| Download: ML19339B624 (1) | |
Text
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a reo o
UNITED STATES I}
NUCLEAR REGULATORY COMMISSION
, Q,- [) e c... y REGION l 0,' M" V [ g
~'
631 PARK AVENUE j
KING oF PRUSSIA, PENNSYt.VANIA 19406 j
October 24, 1980 v
i Docket No. 50-334 Q~
Duquesne Light Company ATTN:
Mr. C. N. Dunn Z
Vice Pre'sident 2,
Operations Division C
'a 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Gentlemen:
The enclosed Supplement No. 3 to IE Bulletin 79-018, " Environmental Qualifica-tion of Class 1E Equipment," is forwarded to you for action. This supplement clarifies two issues raised by Supplement No. 2.
These are (1) the submittal i
of qualification information for equipment resulting from TMI Action Plan requirements and (2) the qualification of equipment which is required to achieve a cold shutcawn condition.
This action is a result of industry feedback to NRC regarding interpretation of Supplement No. 2.
The information presented is applicable to your submittal regarding environmental qualification of Class 1E equipment which is t. quired by November 1, IS80.
If you desire additional information regarding this matter, please contact this office.
Sincerely, B yce H. Grier Director Enclo::ures:
1.
Supplement No. 3 to II Su11etin No.79-013 2.
List of Recently Issued IE Bulletins CONTACT:
S. D. Ebneter (215-337-5283) cc w/encis:
F. Bissert, Technical Assistant Nuclear R. Washabaugh, QA Manager J. Werling, Station Superintendent G. Moore, General Superintendent, Power Stations Department J. J. Carey, Director of Nuclear Operations R. Martin, Nuclear Engineer J. Sieber, Superintendent of Licensing and Compliance, BVPS 801307D N g
SSINS No.:
6820 Acc:ssicn N2.:
8008220248 IEB Sup #3 to 79-018 UNITED STATES C
NUCLEAR REGULATORY COPHISSION
[)
' A OFFICE OF INSPECTION AND ENFORCEMENT
- J WASHINGTON, D.C.
20555 October 24, 1980 IE Bulletin No.79-01B Supplement No. 3:
ENVIRONMENTAL QUALIFICATION OF CLASS IE EQUIPMENT Description of Circumstances:
Two issues were raised by Supplement No. 2 which require clarification.
These are:
(1) the dates required for submittal of qualification information for TMI related equipment, and (2) whether the equipment required to achieve a Celd 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. I and Supplement No. 2, the staff position on this issue was unclear.
Therefore, the following will apply:
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.
Supplement 1 (Feb. 1980) informed ifcensees that equipment which was
" planned" to be installec; as a result of lessons learned need not be addressed in that response.
Some of this equipment has since been installed.
Supplement No. 2 (Q.5, Q.21) identified that the staff post-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 egreeaent (ref.
NUREG-0737, when issued), which requires NRC pre-implemes tftion review, must be submitted with the pre-implementation revnew data.
l l
IES79-01B Sup #3 Octobsr 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 for 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 GA0 clearance (8180225 (R0072), clearance expired July 31, 1980) specifically for idantified generic problems.
Supplement No. 3 to Bulletin 79-018 is for information, hence no GAO clearance is required.
IE Bulletin No. 79-018 Enclosuro 2 Supplement No. ?
October 24, 1980 RECENTLY ISSUED IE BULLETINS Bulletin Subject Date Issued Issued To No.
Supplement 3 Environmental Oualifica-9/30/80 All holders of a to 79-01B 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 (NotUsec)
Revision 1 Boron Loss from 8/29/80 All holders to 79-26 BWR Control Blades of a BWR power reactor OL 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 H-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 Protactive Systems or CP of Operating Nuclear Pcwer Plants Designed by Combustion Engineering 80-18 Maintenance of Adequate 7/24/80 All holders of a Minimun 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 BWR OL or CP Supplement 2 Failure of Control Rods 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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