ML19323C794
| ML19323C794 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 04/29/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Counsil W CONNECTICUT YANKEE ATOMIC POWER CO. |
| References | |
| NUDOCS 8005190202 | |
| Download: ML19323C794 (1) | |
Text
' '
&c
~
p no:.g 80051902.0 1 o,,
UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
i j
REGION 1 a
l S
g 631 PARK AVENUE N
% *ess*,8 KING OF PRUS$1A, PENNSYLVANIA 19408 April 29, 1980 l
Docket No. 50-213 Connecticut Yankee Atomic Power 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, 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:
R. Graves, Plant Superintenderit D. G. Diedrick, Manager of Quality Assurance J. R. Himmelwright, Licensing Safeguards Engineer
SSINS No.: 6830 Accession No.:
UNITED STATES 8002280665 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 m
IE Circular No. 80-10 April 29, 1980 Page 1 of 1 FAILURE TO MAINTAIN ENVIRONMENTAL QUALIFICATION OF EQUIPMENT Description of Circumstences:
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 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 79-018 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 operating licenses or construction permits should recognize the potential for degradation of environmental'y qualified equipment due to improper maintenance or improper use.
It is recommended that licensees review current maintenance oracedures and administrative policies to ensure the following:
1.
Adequate administra-.a 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.
i 3.
Maintenance personnel are adequately trained on environmental qualification recuirements and the potential for equipment degradation from improper maintenance.
No written response to this Circular is required.
If you require additional 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 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 Interference 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 80-03 Protection from Toxic 3/6/80 All Power Reactor Facil-Gas Hazards ities with an CL 80-04 Securing Threaded Lack-3/14/80 All Dower Reactor Facil-ing Devices on Safety-ities with an OL or CP Related Equ!pment 80-05 Emergency Diesel Gen-4/1/80 All Power Reactor Facil-erator Lubricaticg Oil ities with an OL or CP Addition and Onsite Supply 80-06 Control an'd Account-4/14/80 Medical Licensees in ability Systems for Categories G and G1 Implant Therapy Sources 80-07 Problems with HPCI 4/3/80 All Power Reactor Facil-Turbine Oil System ities with an OL or CP 80-08 BWR Technical Speci-4/18/80 All General Electric fication Inconsis-BWRs holding a power tency - RPS Response react.or OL Time 80-09 Problems with Plant Internal 4/28/80 All holders of a Cormunications Systems reactor OL or CP