ML19323C864
| ML19323C864 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Byron, Braidwood, Quad Cities, Zion, LaSalle  |
| Issue date: | 04/29/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8005190331 | |
| Download: ML19323C864 (1) | |
Text
po on, 800519003/
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION Tl0 t
.t REGION 111 C
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799 ROOSEVELT ROAD
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GLEN ELLYN, ILLINOIS 60137 APR 2 9 my Docket Nos. 50-10, 50-237, 50-249, 50-254, 50-265, 50-295, 50-304, 50-373, 50-374, 50-454, 50-455, 50-456 and 50-457 Commonwealth Edison Company ATTN:
Mr. Cordell Reed Vice President Post Office Box 767 Chicago, IL 60690 Gentlemen:
The enclosed Circular No. 80-10 is forwarded to you for information.
If there are any questions related to your understanding of the suggested actions, please contact this office.
Sincerely, dr.th. Y N
&amesG.Keppler J
Director
Enclosure:
IE Circular No. 80-10 cc w/ encl:
Mr. D. L. Peoples, Director Mr. Gunner Sorensen, Site of Nuclear Licensing Project Superintendent Mr. B. B. Stephenson, Mr. R. Cosaro, Project Station Superintendent Superintendent Mr. N. Kalivianakis, Central Files Station Superintendent Director, NRR/DPM Mr. N. Wandke, Station Director, NRR/ DOR Superintendent PDR Mr. L. J. Burke, Site Local PDR Project Superintendent NSIC Mr. T. E. Quaka, Quality TIC Assurance Supervisor Mr. Dean Hansell, Office of Mr. R. H. Holyoak, Station Assistant Attorney General Superintendent Myron M. Cherry, Chicago
SSINS No.: 6830 l
Accession No.:
UNITED STATES 8002280665 NUCLEAR REGULATORY COMMISSION i
0FFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 6
April 29, 1980 IE Circular No. 80-10 FAILURE TO MAINTAIN ENVIRONMENTAL QUALIFICATION OF EQUIPMENT Description of C'.rcumstances:
Carolina Power and Light recently reported that the wrong class of insulating material had been used at their H. B. Robinson Nuclear Plant when the motor j
leads of a containment fan cooler were reconnected.
The motor leads had been disconnected during the refueling outage to supply power to welding equipment.
i When the motor leads were reconnected, the wrong class of insulating material d graded the environmental qualification of the containment fan coolec motor.
A similar event, reported by Duquesne Light Company, occurred when a containment fan cooler motor was not installed with the proper cable insulation.
The NRC has previously issued IE Circular 78-08 and IE Bulletins 79-01 and 79-01B concerning environmental qualification of Class IE equipment.
These Bulletins primarily address the environmental qualification of equipment as
)
purchased and installed; however, the above events emphasize the importance of preperly installing and maintaining environmentally qualified equipment.
Recommended Action for Licensee Consideration:
All holders of operating licenses or construction permits should recognize the 1
potential for degradation of environmentally qualified equipment due to improper maintenance or improper use.
It is recommended that licensees review current maintenance procedures and administrative policies to ensure the following:
1.
Adequate administrative controls exist to ensure that equipment which is environmentally qualified is identified prior to maintenance.
2.
Maintenance procedures provide necessary instructions and precautions to ensure that the environmental qualification of equipment is not degraded when maintenance is completed.
3.
Maintenance personnel are adequately trained on environmental qualification requirements and the potential for equipment degradation j
from improper maintenance.
No written response to this Circular is required.
If you require aaditional
)
information regarding this matter, contact the Director of the appropriate NRC 1
Regional Office.
1 1
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IE Circular No. 80-10 Enclosure April 29, 1980 l
RECENTLY ISSUED IE CIRCULARS j
Circular Subject Date of Issued to No.
Issue j
80-09 Problems With Plant Internal 4/28/80 All holders of a power Communications Systems reactor OL or CP 80-08 BWR Technical Specification 4/18/80 All General Electric Inconsistency - RPS Response BWR's holding a power Time reactor OL l
80-07 Problems with HPCI Turbine 4/3/80 All holders of a power Oil System reactor OL or CP 80 96 Control and Accountability 4/14/80 Medical licensees in Systems for Implant Therapy Categories G and G1 Sources 80-05 Emergency Diesel-Generator 4/1/80 All holders of a power Lubricating Oil Addition and reactor OL or CP Onsite Supply 80-04 Securing of Threaded Locking 3/14/80 All holders of a power Devices on Safety-Related reactor OL or CP Equipment 80-03 Protection from Toxic Gas 3/6/80 All holders of a Hazards power reactor OL 80-02 Nuclear Power Plant Staff 2/1/80 All holders of Reactor Work Hours OLs, including research and test reactors, and cps 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power reactor operating facilities and holders of nuclear power reactor cps 79-25 Shock Arrestor Strut 12/20/79 All licensees and Assembly Interference holders of power reactor cps