ML19224C398
| ML19224C398 | |
| Person / Time | |
|---|---|
| Site: | Columbia, Washington Public Power Supply System, Satsop  |
| Issue date: | 06/11/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Strand N WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| NUDOCS 7907020271 | |
| Download: ML19224C398 (1) | |
Text
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fg UNITED STATES
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- 0 NUCLEAR REGULATORY COMMISSION
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WALNUT CRE EK, CAliFORNI A 94596 June 11,1979 Docket lios. 50-460 50-397 50-503 50-509 50-513 Washington Public Power Supply System P. O. Box 968 3000 George Washington Way Richland, Washington 99352 Attention: Mr. fl. O. Strand fianaging Director Gentlemen:
This Infor ation f;otice is being issued to call to your attention an aspect of the Commission's regulations which IE inspectors have found is not always being fully implemented, llo written response is required.
If you have questions regarding this matter, please contact me.
Sincerely,
//[
[R./ [f/ ' k,en,z,
l Engd H
Director c/
L)
Enclosure:
IE Information flotice fio. 79-14 cc w/ enclosures:
!1. E. Witherspoon, WPPSS A. D. Kohler, WflP-2, WPPSS J. P. Thomas, WPPSS G. C. Sorensen, WPPSS 271 108 7907Da o;2.7/
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECT 10N AND Ef1FORCEI1ENT WASHINGTON, D.C.
20555 June 11, 1979 IE Infornation flotice No. 79-14 SAFETY CLASSIFICATION 0F ELECTRICAL CABLE SUPPORT SYSTEMS Surrria ry-The t'RC 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 cabies.
This notice is being issued to all applicants for, and holders of construction permits, to remind them of the Cornission's regulations on this subject.
Description of Circumstances:
1.
In the Commission's Regulations for Licensing of Production and Utilization Facilities - 10 CFP, Part 50, Criterion 2 of Apoendix A, states in part that " Structures, systems and conponents important to safety shall be designed to withstand the effects of.... earthquakes....without loss of capability to perform their safety functions...."
2.
The Commission's Regulations on Reactor Site Criteria, Part 100, Appendix A, define a " safe shutdown earthquake," (SSE) and generall; icentify the structures, systens and conponents which are required to remain functional during such an earthquake.
3 Regulatory Guide 1.29 " Seismic Design Classification" states in pertinent part:
"C.1.
The following structures, systems and components 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 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 information notice is required.
If you have questions regarding the matter, pleas 2
UV fiRC Regional Office.
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