ML19249C046
| ML19249C046 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/20/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Clayton F ALABAMA POWER CO. |
| References | |
| NUDOCS 7909070235 | |
| Download: ML19249C046 (2) | |
Text
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'o, UNITED STATES
~F^ % ( -.E REGION 11 NUCLEAR i.EGULATORY COMMISSION 7
"o 101 MARIETT A ST., N.W., SulTE 3100
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AT LANTA. GEORGI A 30303 w a ws In Reply Refer To:
RII:JPO 50-364 Alabama Power Corp:1ny ATTN:
F. L. Clayten, Jr.
Senior Vice President P. O. Box 2641 Birmingham, AI.
35291 Gentlemen:
Enclosed is IE Bulletin No. 79-02, Revision 1, Supple:: ent !. c.
1, which is for-warded to you for information.
Ne written response is required.
If you desire additional information regarding this matter, please contact t his of fice.
Sincerely,
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JaEis~P. O'Rei1[y Director
Enclosures:
1.
IE Bulletin Nc. 79-02, Revision No. 1 (Supplement No. 1) 2.
Listing of IE Eulletins Issued in Last Six Months jg'r!
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Alabama Power Company -
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A. R. Barton Executive Vice President Post Office Box 2641 Birmingham, Alabama 35291 H. O. Thrash Manager, Nuclear Generation Post Office Box 2641 Birmingham, Alabama 35291 C. Biddinger, Jr.
Manager-Corporate Quality Assurance Post Office Box 2641 Birmingham, Alabama 35291 W. G. Hairston, III Plant Manager Drawer 470 Ashford, Alabama 36312 R. E. Hollands, Jr.
QA Supervisor Post Office Box U Ashford, Alabama 36312
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SSINS: 6820 Accession No:
790815C164 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 August 20, 1979 IE Bulletin No. 79-02 Revision No. 1 (Supplement No. 1)
PIPE SUPPORT BASE PLATE DESIGNS USING CONCRETE EXPANS Description of Circumstances:
The supplement to IE Bulletin No. 79-02 is intended to establish criteria for the evaluation of interim acceptability of plant operation with less than the design factors of safety for piping supports due to as-built problems, under design, base plate flexibility, or anchor bolt deficiencies.
In the reviews for system operability of the Duane Arnold and Crystal River facilities, criteria have been developed by the NRC staff that defines pipe support The criteria has been applied in lieu of other analysis or evalua-Specifically, the. licensees identified problems with pipe supports in which operability.
the original design factors of safety were not met but some le tion.
installation objectives but systems may be classed as operable on an interim basis available.
with some lesser margin providing a program of restoration to at least theFac Bulletin factors of safety has been developed.
operability criteria are considered to probably require a Technical Specifica-tion exception and will require review on a case by case basis.
Action to be Taken by Licensees:
For the following two cases, plant operation may continue or may begin:
For the support as a unit, the factor of safety compared to ulti-mate strengths is less than the original design but equal to or greater a.
than two.
For the anchor bolts the factor of safety is equal to or greater than b.two and for the support steel the original design factor of safety com-pared to ultimate strengths is met.
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- 3"*we The above criteria may be applied DUPLICATE DOCUMENT graded to design margins of safety and by the next refueling for nona Entire document previously entered fined in Bulletin No. 79-14 where into system under:
of the plant which can be entered ANo HOS(50M r
+:'Jd No. of pages:
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