ML19261E337
| ML19261E337 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 06/11/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Eric Turner HOUSTON LIGHTING & POWER CO. |
| References | |
| NUDOCS 7907050562 | |
| Download: ML19261E337 (1) | |
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9.ga n e eg<'o UNITED STATES
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, cg' NUCLEAR REGULATORY COMMISSION
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REGION IV
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Gil RYAN PLAZA DRIVE, SUITE 1000 o
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,e ARLINGTON, TEX AS 76012
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June 11, 1979 In Reply Refer To:
RIV Docket Nos. 50-498/IE Infortation Notice No. 79-14 50-499/IE Infor=ation Notice No. 79-14 Houston Lighting & Power Company ATTN:
Mr. E. A. Turner, Vice President Power Plant Construction and Technical Services Post Office Box 1700 Houston, Texas 77001 Gentlemen:
This IE Information Notice is being issued to call to your attention an aspect of the Co=:aission's regulations which IE inspectors have found is not always being fully implemented. No written response is required.
If you have questions regarding this matter, please contact =e.
Sincerel,
Karl V. Seyfri Director
Enclosures:
1.
IE Infor=ation Notice No. 79-14 2.
List of IE Information Notices Issued in 1979 3%n 291R1 790705oso
UNITED SIATES NUCLEAR REGULATORY CCTfISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Information Notice No. 79-14 Date: June 11, 1979 Page 1 of 1 SAFETY CLASSIFICATION OF ELECTRICAL CABLE SUPPORT SYSTEliS Summary:
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 permits, to remind them of the Commission's regulations on this subject.
Description of Circumstances:
1.
-In the Commission'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 components import at to safety shall be designed to withstand the ef fects of.... earthquakes....without loss of capability to perform their safety functions...."
2.
The Cosmission's Regulations on Reactor Site Criteria, Part 100, Appendix A, define a " safe shutdown earthquake," (SSE) and generally identify the structures, systems and components which at - 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 desi,o 'ated 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."
"C.I.o.
The Class IE electric systems, including the au:.iliary systems for the on-site electric powe supplies, that rtovide the emergency electric power...
No written response to this information notice is required.
If you have questions regarding the matter, please contact the Director of the appropriate NRC Regional Office.
- 7906290e11 t,c
IE Information Notice 79-14 June 11, 1979 LISTING OF IE INFORMATION NOTICES ISSUED IN 19~9 Info rmation Subject Date Issued To Notice No.
Issued 79-01 Sergen-Paterson Hydraulic 2/2/79 All power reactor Shock and Sway Arrestor facilities with an Operating License (OL) or a Construc-tion Permit (CP) 79-02 Attempted Extortion -
2/2/79 All Fuel Facilities Low Enriched Uranium 79-03 Limitorque Valve Geared 2/9/79 All power reactor Limit Switch Lubricant facilities with an Operating Licensa (OL) or a Construc-tien Permit (CP) 79-04 Degradation of Engineered 2/16/79 All power reactor Safety Features facilities with an Operating License (OL) or a Const: 'c-tion Permit (CP) 79-05 Use of Improper Materials 3/21/79 All power reactor In Safetf-Related Components facilities with an Operating License (OL) or a Construc-tica Permit (CP) 79-06 Stress Analysis of 3/23/79 All 'olders of an Safety-Related Piping React,r Operattng Licen;e (0L) or a Construction Permit (CP) 79-07 Rupture of Radwaste 3/26/79 All power reactor Tanks facilities with sn Operating License (OL) or a Construc-tion Permit (CP)
Enclosure Page 1 of 2
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IE Information Notice No. 79-14 June 11, 1979 79-08 Interconnection of 3/28/79 All power reactor Ccataminated Systems with facilities with an Service Air Systems Used Operating License As the Source of Breathing (0L) and Pu Proces-Air sing fuel facilities 79-09 Spill of Radioactively 3/30/79 All power reactor Contaminated Resin facilities with an Operating Licence
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(OL) 79-10 Nonconforming Pipe 4/16/79 All power reactor Support Struts facilities with a Ccustruction Permit (CP) 79-11 Lower Reactor Vessel Head 5/7/79 All Holders of an Insulation Support Problem Operating License u..I or a Construction Pe_mit (CP) 79-12 Attempted Damage to New 5/11/79 All fuel facilities, Fuel Assemblies research reactors, and power reactors with au Operating Licensee (OL) or a Construction Permit (CP) 79-13 Indication of Low Water 5/29/79 All Holders of an Operating Level in the Oyster Creek License (OL) or a Reactor Construction Fermit (CP) 79-14 Safety Classification of 6/11/79 All Power Reactor Electrical Cable Support facilities with a Systems Coestruction Permit (CP) and applicants
)1-15 Deficient Procedures 6/07/79 All power reactor facilities with aa Operating License (OL) or a Construction Permit (CP)
Enclosure Page 2 of 2 2/
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