ML19224C377
| ML19224C377 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 06/11/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| References | |
| NUDOCS 7907020245 | |
| Download: ML19224C377 (1) | |
Text
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TIC a asco UNITED STATES ja ff q[0, NUCLEAR REGULATORY COMMISSION 5 ' r(;',
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JUN 11 1979 Docket No. 50-440 Docket No. 50-441 The Cleveland Electric Illuminating Company ATTN:
Mr. Dalwyn R. Davidson Vice President - Engineering P. O. Box 5000 Cleveland, OH 44101 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 implemented.
No written response is required.
If you have que *.ons regarding this matter, please contact me.
Sincerely, wM k
v%'JamesG.Kepper Director
Enclosure:
IE Information Notice No. 79-14 cc w/ encl:
Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Harold W. Kohn, Power Siting Commission Mr. Daniel D. Wilt, Attorney 269 in 7907020pff
s u U.S. hTCLEAR RECULATORY COW.ISSION OFFICE OF INSPECTION AND EhTORCDiENT REGION III June 11, 1979 IE Inforcation Notice No. 79-14 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 10 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 issued to all applicants for, and holders of construction perm.its, to re=ind the: of the Co==ission's regulations on this subject.
Description of Circumstances:
1.
In the Coc=ission's Regulations for Licensing of Production and Utilization Facilities - 10 CFR Part 50, criterion 2 of Appendix A, states in part that " Structures, systems and co:ponents icportant to safety shall be designed to withstand the effects of.... earthquakes....without loss of capability to perform their safety functions...."
2.
The C - 4ssion's Regulations on Reactor Site Criteria, Part '00, Appendix A, define a " safe shutdown earthquake," (SSE) and ga.7erally identify the structures, systems 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 following structures, systems' and components of a nuclear power plant, including their foundations and supports (empFasis 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 fune.tions of these structures, systems and components."
"Cl. <1 T%e Class IE electric systems, including the auxiliary systems for the on-site electric power supplies, that provide the emergency electric power... "
No written response to this informatio
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cuestions regarding the matter, please DUPLICATE DOCUMENI'
') U /'Q 'l 'i,
NkC Regional Office.
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Entire document previously en cered
Attachment:
List of IE Information into system under:
Notices Issued in 1979 h
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