ML16340B225
| ML16340B225 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/24/1980 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Crane P PACIFIC GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8011130014 | |
| Download: ML16340B225 (8) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION REGION V 1990 N. CALIFORNIABOULEVARD SUITE 202, WALNUTCREEK PLAZA WALNUTCREEK, CALIFORNIA94596 Docket Nos. 50-275, 50-323 Qcto,ber'24, 1980'-, '
noes" h Pacific Gas and Electric Company 77 Beale Street San Francisco, California 94106 Attention:
Nr. Philip A. Crane, Jr.
Assistant General Counsel Gentlemen:
The enclosed IE Supplement No.
3 to Bulletin 79-01B is forwarded to you for information.
It clarifies two issues raised by Supplement No. 2.
These are (1) the submittal of qualification 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 you desire additional information regarding this matter, please contact this office.
Sincerely, R.
H. Engelken Director
Enclosures:
l.
IE Supplement No.
3 to Bulletin No.79-018 2.
Recently Issued IE Bulletins cc w/enclosures:
E.
B. Langley, Jr.,
PG&E W.
- Raymond, PG8 E A
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT HASHINGTON, D.C.
20555 SS INS No.:
6820 Accession No.:
8008220248 IEB Sup 83 to 79-01B 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
Cold Shutdown condition must be environmentally qualified if the licensing basis%or 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.'.5 Supp.
No. 2).
Due to an inconsistency between Supplement No.
1 and Supplement No. 2, the staff position on this issue was unclear.
Therefor e, 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 79-01B required a 90 day response which was due in mid-April 1980.
Supplement 1 (Feb.
1980) informed licensees that equipment which was "planned" to be installed 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 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 reqarding 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 ¹3 October 24, 1980 Page 2 of 2 gualification information for THI Action Plan equipment currently under NRC review should be submitted as soon as possible.
d.
gualification information for THI 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 79-01B is for information, hence no GAO clearance is required.
RECENTLY ISSUED IE BULLETINS IEB 79-01 Sup ¹3 October 24, 1980 Bulletin No.
Subject Date Issued Issued To Supplement 2
to 79-01B 80-22 Automation Industries, Model 200-520-008 Sealed-source Connectors 9/11/80 Environmental gual ificati on 9/3D/80 of Class 1E Equipment All power reactor facilities with an OL Al 1 radiography licensees 79-26 Revision 1
80-20 80-19 80-18 Boron Loss from B'IJR Control Blades Fa i 1 ures of ilestinahouse Type ll-2 Spring Return to Neutral Control Switches Failures of Hercury-lletted Matrix Relays in Reactor Protective Systems of Operating Nuclear Power Plants Designed by Combus-tion Engineering Maintenance of Adequate Hi nimum Flow Thru Centrifugal Charging Pumps Following Secondary Side High Energy Line Rupture 8/29/80 7/31/80 7/31/80 7/24/80 All B'HR power facilities with an OL To each nuclear power facility in your region having an OL or a CP All nuclear power facilities having either an OL or a CP All PHR power reactor facilities holding OLs and to those PWRs nearing licensing Supplement 2
to 80-17 Failures Revealed by Testing Subsequent to Failure of Control Rods to Insert During a Scram at a
BHR 7/22/80 All Bl<R power reactor facilities holding OLs Supplement 1
to 80-17 80-17 Failure of Control Rods to Insert During a Scram at a BHR Failure of Control Rods to Insert During a Scram at a O'HR 7/18/80 7/3/80 All BllR power reactor facilities holding OLs All BllR power reactor facilities holding OLs 80-16 Potential Misapplication of 6/27/80 Rosemount Inc., Models 1151 and 1152 Pressure Transmitters with Either "A" or "D" Output Codes All Power Reactor Faci1 ities with an OL or a CP
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