ML19224C380
| ML19224C380 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 06/11/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 7907020249 | |
| Download: ML19224C380 (1) | |
Text
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TIC e "iGo UNITED STATES m
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NUCLEAR REGULATORY COMMISSION
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JUN 11 1979 Docket No. 50-329 Docket No. 50-330 Consumers Power Company ATTN:
Mr. Stephen H. Howell Vice President 1945 West Parnall Road Jackson, MI 49201 Gentlemen:
This Information Notice is being issued to call to your attention an aspect of the Commissions's regulations which IE inspectors have found is not always being fully implen.ented.
No written response is required.
If you have questions regarding this matter, please contact me.
Sincerely, a5 Nt,
w JamesG.Kep[fer Director
Enclosure:
IE Information Notice No. 79-14 cc w/ encl:
Central Files Director, NRR/DPrf Director, NRR/ DOR PDR Local PDR NSIC TIC Ronald Callen, Michigan Public Service Commission Dr. Wayne E. North Myron M. Cherry, Chicago 269 15; 7007020257
I U.S. hTCLEAR REGULATORY COW.ISSION v
OFFICE OF INSPECTION AND ENTORCEMENT
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REGION III June 11, 1979 IE Information Notice No. 79-11.
SAFETY CLASSIFICATION OF ELECTRICAL CABLE SUPPORT SYSTEMS r
Su==ary:
The NRC inspection staff has found that in several cases, facilities under construction have not applied the pertinent quality assurance requirements of 30 CFR 50, Appendix B to the design, procurement, and installation of cable trays and their support systems for Class IE electrical cables. This notice is being iusued to all applicants for, and holders of construction permits, to remind the= of the Co=rission's regulations on this subject.
Description of Circu= stances:
1.
In the Co=rission's Regulations for Licensing of Production and Utilization Facilities - 10 CFR Part 50, Criterion 2 of Appendix A, states in part that " Structures, systees and corponents important to safety shall be designed to withstand the effects of.... earthquakes....without loss of capability to perfore their safety functions...."
2.
The C - ission's Regulations on Reactor Site Criteria, Part 100, Appendix A, define a safe shutdown earthquake," (SSE) and generally identify the structures, syste=s and components which are required to re=ain functional during such an earthquake.
3.
Regulatory Guide 1.29 " Seismic Design Classification" states in pertinent part:
"C.I.
The follov'.ng structures, systems and cocponents of a nuclear power plant, including their foundations and supports (emphasis added) are designated as Seismic Category 1 and should be designed to withstand the effects of the SSE and remain functional. The pertinent quality assurance requirements of Appendix B to 10 CFR 50 should be applied to all activities affecting the safety related functions of these structures, systems and components."
"C1.q.
The Class II electric systems, including the auxiliary systems for the on-site electric power supplies, that provide the emergency electric power..."
No written response to this information t-
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questions regarding the matter, please et DUPLICATE DOCUMENT NRC Regional Office.
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Entire document previously entered
Attachment:
List of IE Information into system under:
Notices Issued in 1979 ANO 1 h
b No. of pages:
1
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