ML19225C752

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Forwards IE Bulletin 79-14,Revision 1, Seismic Analysis for As-Built Safety-Related Piping Sys
ML19225C752
Person / Time
Site: Waterford Entergy icon.png
Issue date: 07/18/1979
From: Seyfrit K
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Aswell D
LOUISIANA POWER & LIGHT CO.
References
NUDOCS 7908020397
Download: ML19225C752 (1)


Text

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h UNITED STATES

? '.";,,,,,': 1 NUCLEAR REGULATORY COT / MISSION

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E REGION IV

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011 RY A*J PL A Z A o AlVE, SUITE 1000

' t, AR LINGTON, TE X AS 76C 12 July IS, 1979 In Reply R fer To:

RIV Donket No.

30-332/IE Eulletin Sc. 79-14 Revision 1 Lcuisiana Power and Light Co.

ATT'* -

M_r. D. L. Aswell Vice President of Power Production 142 Delarcade Street New Orleans, Louisiana 70174 Gentlemen:

IE 3ulletia 79-14 is revised to li=1t the scope of work required.

The changes are indicated on the enclosed replacement page for the bulletir.

If you desire additional information regarding this =atter, please contact this office.

Sincerely,

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Karl V. Seyfrit Director

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Enciasure' IE Eulletin 50. 79-14 Revision 1 er~

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IE Eulletin No. 79-14 Revision 1 Date:

July 13, 1979 Page 2 of 3 Action to be ta'<en by Licensees and Permit Holders:

All power reactor facility licensees and coastruction permit holders are requested to "-rify, unless verified to an equivalent degree within the last 12 conths, that the seismic analysis applies to the actual configura-tion of safety-related piping systems.

The safety-related piping includes Seismic Category I systems as defined by Regulatory Guide 1.29, " Seismic Design Classification," Revision 1, dated August 1, 1973 or as defined in the applicable F3AR.

The action items that follow acply to all safetv-related piping 2-1/2-inches in diameter and greater and to seisaic Category I piping, re2 rdless of sice which was dynamically analyzed oy cc:puter.

ror older plants >

--where Seisaic Category I requirements did not exist at the tice of licensing, it. must be shown that the actual configuration of f'ss/ safety-related systems, i

utilizing piping 2-1/2 inches in diaceter and greater, meets design require-cents.

Specifically, each licensee is requested to:

1.

Identify inspection elecents to be used in verifying that the seismic analysis input information conforms to the actual configuration of safety-related systems.

For each safety-related system, submit a list of design documents, including title, identification number, revision, and date, which were sources of input information for the seisaic analyses.

Also submit a description of the seismic analysis input information which is contained ia each document.

Identify systems or portions of systems which are pla-aal *o be inspected during each sequential inspection identified in Items 2 and 3.

Submit all of this information within 30 days of the date of this bulletin.

2.

For porticas of systems which are nor= ally accessible *, inspect cne system in each set of redundant systeas and all nonredundant systeas for con-forcance ta the seismic analysis input inforeatica set forth in desig documents.

Include in the inspection: pipe run ge:cetry- ;upport and restraint design, loca,i: s, function and clearance (includ: g floor and wall penetration), embed ents (excluding those cavere! in IE Eulletin 79-02); pipe a:tachments and valve and valve ope: 2;or locations and weights (excludin; those covered in :E Eulletin 79-04).

Within c0 days of the date of this bulletin, submit a ces:ription of the results of this int actim Where ncnconformances are found which af fect operability of any system, the license' will expedite cc:pletion of the inspection described in Ites 3.

wNorcall, accessible refers to those areas of the plant which can be entered during reactor operation.

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