ML19224C359
| ML19224C359 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 06/11/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Stampley N MISSISSIPPI POWER & LIGHT CO. |
| References | |
| NUDOCS 7907020214 | |
| Download: ML19224C359 (1) | |
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s,, cg,'n NUCLEAR REGUL ATORY COMMISSION
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101 M ARIETT A ST., N.W., SulTE 3100 o, k jaf E ATLANT A, GE ORGI A 30303 As o
JUN 111979 In Reply Refer To:
RII:FJL 50-416 50-417 Mississippi Power and Light Cotapany ATTN:
N. L. Stampley Vice President of Production P. O. Box 1640 Jackson, MS 39205 Centlemen:
This Information Notice is being issued to call to your attention an aspect of the Corssission's regulations which IE inspectors have found is not always being fully implemented. No written response is required.
If you have questions regarding this satter, please contact me.
1 Sincerely, g Jam'es' P. O'Reilly Director Enclosures
/9 IE Infomation Notice 1
No. 79-14 4
269 ll6 79070gg n,G mi
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Mississippi Power and Light Coc:pany cc w/ enc 1:
C. K. McCoy Plant Manager Post Office Box 756 Port Gibson, Mississippi 39150 9
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i UNITED STATES FUCLEAR REGU1ATORY COKKISSION OTTICE OF INSPECIl0N AND EhTORCEMENT WASHINGTON, D.C.
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June 11,1979 IE Inf ormation Botice No. 79-14 SATrIT CLASSITICATION OF ELECTRICAL CAELE SUPPO Susnary lities under The NRC inspection staff has found that in several cases, faci requirements of construction have not applied the pertinent quality a f cable l cables. This notice trays and their support systees for Class IE electrica i
1 Lits, to is being issued to all applicants for, and bolden of construct on per remind them of the Ccer.ission's regulations on this subject.
Deacription of Circuastancesa
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In the Commission's Regulations for Licensing of Production an A, states Utilization Facilities - 10 CTR Part 50, Criterion 2 of Appendix 1.
in part that "Structuras, systems and ccuponents important 3
itbout shall be designed to ariths tand the af f ects of.... earthquakes....tr l
loss of capability to perform their saf ety functions...."
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The Ceamission's Regulations on teactor Site Criteria, Part 100 l
Appendix A, define a saf e shutdown earthquake," (SSE) 2.
i d to identify the structures, systens and components which are requ re i
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remain functional during such an oa,rthquaka.
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Regulatcry Cuida 1.29 " Seismic Des 14n C1sesification" s
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parts The following structures, systems and components of a euc h i dded) t power piset, including their foundations and supports (emp as "C.1.
ithstand are designated as Seismic Category 1 and should be designed t the ef fects of the SSE and recain functional.
I lied to assurance requirements of Appendix 3 to 10 t res, systens and ccaponents."
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The Class 1E electr DUPLICATE DOCUMENT h 9 1 I f>
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syster_s f or the co-site ele
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. i the energency electric pove Sly ntered nt sys e unde Eo written re: 3cse to this infc 79h Q g
questions regarding the matter, ANO f
NRC Regtonal of fice.
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