ML19263C315
| ML19263C315 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 02/09/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Burstein S WISCONSIN ELECTRIC POWER CO. |
| References | |
| NUDOCS 7902210204 | |
| Download: ML19263C315 (1) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION f l[]
REGloN 111
- 1, 799 ROOSEVELT Ro AD sQr G LE N E LLYN, ILLINolS 60137 FEB D
'70 Docket No. 50-266 Docket No. 50-301 Wisconsin Electric Power Company ATTN:
Mr. Sol Burstein Executive Vice President Power Plants 231 West Michigan Milwaukee, WI 53201 Gentlemen:
Enclosed is IE Bulletin No. 79-01.
It requires.ction by you with regard to power reactor facilities with an operating license except for the 11 SEP plants which are listed in Enclosure 3.
This Bulletin is also being sent for information to the 11 SEP plants and all power reactor facilities with a construction permit.
No action or written response is required for construction permit facilities or the 11 SEP plants.
Should you have questions regarding this Bulletin or the actions required of you, please contact this office.
Sincerely,
./Y A
James G. Keppler Director
Enclosures:
1.
List of IE Bulletins Issued in the past 12 months 3.
List of SEP Plants (11) cc w/encls:
Mr. G. A. Reed, Manager Local PDR Central Files NSIC Director, NRR/DPM TIC Director, NRR/ DOR Sandrs A. Bast, Lakeshore PDR Citizens for Safe Energy
?S' d216 &o }
1 U.S. NUCLEAR REGULATORY COMMISSION 0FFICE OF INSPECTION AND ENFORCEMENT REGION III February 8, 1979 IE Bulletin No. 79-01 ENVIRONMENTAL QUALIFICATION OF CLASS IE EQUIPMENT Description of Circumstances:
The incent of IE Circular 78-08 was lo highlight to all licensees important lessons learned from environmental qualification deficiencies reported by individual licensees.
In this regard, licensees were requested to exam',e installed safety-related electrical equipment and detemine that proper documentation existed which Drovided assurance that this equipment would function under postulated Lccident conditions.
The scope of IE Circular 78-08 was much broader than other previously issued Bulletins and Circulars (such as IEB 78-04 and IEB 78-02) which addressed specific component failures.
The intent of this Bulletin is to raise the threshold of IE Circular 78-08 to the level of a Bulletin; i.e., action requiring a licensee respcnse.
Inspections conducted to date by the NRC of licensees' activities in response to IE Circular 78-08 have identified one component wnich licensees have found to be unqualified for service within the LOCA environment.
Spe:ificially, unqualified stem mounted limit switches (SMLS), other than those identified in previously issued IE Bulletin 78-04, were found to be installed on safety-related valves inside containment at both Duane Amold and Quad Cities I and 2 Nuclear Generating Stations.
The unqualified switches are identified as NAMCO Models SL2-C-11 S3CML, sal-31, SA1-32, 01200j, EA-700 and EA-770 switches.
According to the manufacturer, these switches are designed only for general purpose applications and are not considered suitable devices for service ir, the LOCA environment.
Consequently, switches are being replaced at the above power plants with qualified components.
Also, NRC inspection of component qualification has identified equipment which does not have documentation indicating it is qualified for the LOCA environment.
The inspections have also identified that the licemees' re-review and resolution of problem areas are not receiving the level of attention from all licensee A-
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Because of the protracted schet are now requesting the power r expedite completion of their r DUPLICATE DOCUMENT by IE Circular 78-08 dated May Entire document previously enttired into system under:
7f62/70 27f ANO No. of pages:
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