ML19261E340
| ML19261E340 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/11/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| References | |
| NUDOCS 7907050566 | |
| Download: ML19261E340 (1) | |
Text
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,o, UNITED STATES fyg'(/.[j NUCLEAR REGULATORY COMMISSION C
REGION IV 3 J i-D, 'gf
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611 RYAN PLAZA ORIVE, SUITE 1000
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D ARLINGTON, TEXAS 76012
,o June 11, 1979 In Reply Refer To:
RIV Docket Nos.
50-445/IE Information Notice No. 79-14 50-446/IE Information Notice No. 79-14 Texas Utilit.ies Generating Company ATTN:
Mr. R. J. Gary, Executive Vice President and General Manager 2001 Bryan Tower Dallas, Texas 75201 Gentlemen:
This IE Infor=ation Notice 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. No written tesponse is req tired. If you have questions regarding this matter, please contact me.
Sincerely, f
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wA A/A Il V. Seyfrit Director
Enclosures:
1.
IE Information Notice No. 79-14 2.
List of IE Infor=atica Notices Issued in 1979 790705E66 292jy
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEME.'T WASHINGTON, D.C.
20555 IE Infontation Notice No. 79-14 Date: Jime 11, 1979 Page 1 of 1 SAFETT CLASSIFICATION OF ELECTRICAL CABLE SUP M T SYSTEMS Summary:
The NRC inspection staff has found that in several cases, facilities under construction have not applied the pertinent quality assurance requiremen's of 10 CFR 50, Appendix B to the design, procurement, and installation of caole 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.
Descripties 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 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 Cr'.teria, Part 100, Appendix A, define a " safe shut? tm earthquake,' (SSE) and generally identify the structures, systems and components 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 shr.id be applied to all activities affecting the safety-related functions of these structures, systems and ccmponents."
"C.1.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 respcase to this information notier is required.
If you have questions regarding the matter, please contact che Director of the appropriate NRC Re,ioral Office.
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IE Information Notice 79-14 June 11, 1979 LISTING OF IE INFORMATION NOTICES ISSULD IN 1979 Info rmation Subject Date Issued To Fotice No.
Issued 79-01 Bergen-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 Extottion -
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 License (OL) or a Construc-tion Permit (CP) 79-04 Degradation of Engineered 2/16/79 All power reactor Safety Features facilities with an Operating License (OL) or a Construc-tion Permit (CP) 79-05 Use of Improper Materials 3/21/79 All power reactor In Safety-Related Components facilities with an Operating License (OL) or a Construc-tion Permit (CP) 79-06 Stress Analysis of 3/23/79 All Holders of an Safety-Related Piping Reactor Operating License (OL) or a Construction Permit (CP) 79-07 Rupture of Padwaste 3/26/79 All power reactor Tanks facilities with an Operating License (OL) or a Construc-tion Permit (CP)
Enclosure Page 1 of 2 l
IE Intocmation Notice No. 79-14 June 11, 1979 79-08 Interconnection ut 3/28/79 All power reactor Contaminated Systems with facilities with an Service Air Systems Used Operating License As the Source of Breathing (OL) and Pu Proces-Air sing fuel facilities 79-09 Spill of Radioactively 3/30/79 All power reactor Contaminated Resin facilities with an Operating License (0L) 79-10 Nonconforming Pipe 4/16/79 All power reactor Support Struts facilitics with a Construction Permit (CP) 79-11 Louer Reactor Vessel Head 5/7/79 All Holders of an Insulation Support Problem Operating License (OL) or a Construction Permit (CP) 79-12 Attempted Damage to New 5/11/79 All fuel facilities, Fuel Assemblies research reactors, and power reactors with an 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 (0L) er a Reactor Construction Permit (CP) 79-14 Safety Classification of 6/11/79 All Power Reactor Electrical Cable Support facilities with a Systems Construction Permit (CP) and applicents 79-15 Deficient Procedures 6/07/79 All power reactor facilities with an Operating License (OL)-
or a Construction Permit (CP)
Enclosure Page 2 of 2 9Q7
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