ML19323C855
| ML19323C855 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/29/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Counsil W NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| NUDOCS 8005190313 | |
| Download: ML19323C855 (1) | |
Text
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UNITED STATES
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g NUCLEAR REGULATORY COMMISSION 8005190 3D C
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KING oF PRUSSIA, PENNSYLVANIA 19A06 April 29, 1980 Docket Nos. 50-245 50-336 50-423 Northeast Nuclear Energy Company ATTN:
Mr. W. G. Counsil Vice President - Nuclear Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Gentlemen:
The enclosed IE Circular No. 80-10, " Failure to Maintain Environmental Quali-fication Equipment," is forwarded to you for information.
No written response is required.
If you desire additional information regarding this matter, please contact this office.
Sincerely, L
Boyce H. Grier Director
Enclosures:
1.
IE Circular No. 80-10 2.
List of Recently Issued IE Circulars CONTACT:
S. D. Ebneter (215-337-5283) 1 cc w/encls:
J. F. Opeka, Station Superintendent D. G. Diedrick, Manager of Quality Assurance J. R. Himmelwright, Licensing Safeguards Engineer K. W. Gray, Supervisor of Construction Quality Assurance H. R. Nims, Director of Nuclear Projects l
l
SSINS No.: 6830 Accession No.:
UNITED STATES 8002280665 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT f
WASHINGTON, D.C.
20555 i
IE Circular No. 80-10 April 29, 1980 Page 1 of 1 FAILURE TO MAINTAIN ENVIRONMENTAL QUALIFICATION OF EQUIPMENT Description of Circumstances:
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 leads of a containment fan cooler were reconnected.
The motor leads had been disconnected during the refueling outage to supply power to welding equipment.
When the motor leads were reconnected, the wrong class of insulating material degraded the environmental qualification of the containment fan cooler motor.
A similar event, reported by Duquesne Light Company, occurred when a containment i
fan cooler motor was not installed with the proper cable insulation.
l 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 properly installing and maintaining environmentally qualified equipment.
Recommended Action for Licensee Consideration:
All holders of optrating licenses or construction permits should recognize the potential for degradation of environmentally qualified equipment due to improper maintenance or improper use.
It is recommended that licensees review i
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 from improper maintenance.
No written response to this Circular is required.
If you require additionai information regarding this matter, contact the Director of the appropriate NRC Regional Office.
ENCLOSURE 2 IE Circular No. 80-10 Date:
April 29, 1980 Page 1 of 1 RECENTLY ISSUED IE CIRCULARS 4
Circular Subject First Date Issued To No.
of Issue 79-25 Shock Arrestor Strut 12/20/79 All Power Reactor Assembly Inteference Licensees with an Operating License (OL) or Construc-tion Permit (CP) 79-25 Shock Arrestor Strut 1/31/80 All Power Reactor Facil-Supplement A Assembly Interierence ities with an OL or CP 80-01 Service Advice for GE 1/17/80 All Power Reactor Facil-Induction Disc Relays ities with an OL or CP 80-02 Nuclear Power Plant 2/1/80 All Power and Research Staff Work Hours Reactors with an OL or CP a
i 80-03 Protection from Toxic 3/6/80 All Power Reactor Facil-Gas Hazards ities with an OL 80-04 Securing Threaded Lack-3/14/80 All Power Reactor Facil-ing Devices on Safety-ities with an OL or CP Related Equipment 80-05 Emergency Diesel Gen-4/1/80 All Power Reactor Facil-erator Lubricating Oil ities with an OL or CP Addition and Onsite Supply 80-06 Control an'd Account-4/14/80 Medical Licensees 'n ability Systems for Categories G and G1 Implant Therapy Sources 80-07 Problems with HPCI 4/3/80 All Power Reactor Facil-l Turbine Oil System ities with an OL or CP l
80-08 BWR Technical Speci-4/18/80 All General Electric fication Inconsis-BWRs holding a power tency - RPS Response reactor OL Time 80-09 Problems with Plant Internal 4/28/80 All holders of a Communications Systems reactor OL or CP