ML20214G548

Forwards Comments & Requests for Further Info Re Adequacy of Seismic & Quality Group Classifications Indicated on safety- Related P&Ids Transmitted W/Util

ML20214G548
Person / Time
Site:	Columbia
Issue date:	10/18/1974
From:	Stello V US ATOMIC ENERGY COMMISSION (AEC)
To:	Deyoung R US ATOMIC ENERGY COMMISSION (AEC)
References
CON-WNP-0056, CON-WNP-56 NUDOCS 8605220268
Download: ML20214G548 (3)

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w File L Reading 007 y,1:3 RSB Reading V. Stello, L E. Leins, L Docket No: STil 90-397 Richard C. DeYoung, Jr., Assistant Director for LWR's, Group 1, L WPPSS NUCLEAR PROJECT NO. 2 Plant Name: Hanford Nuclear Power Plant, No. 2 Licensing Stage: Post CP Docket No: 50-397 Technical Assistance Request flo: 842 Responsible Branch and Project Leader: LWR l-2, J. D. Orndoff Requested Completion Date. October 25, 1974 Description of Response: None Required Review Status: Complete As an attachment to L. L. Humphreys' letter of January 18, 1974 to A. Giambusso, the applicant transmitted a copy of the safety related piping and instrumentation diagrams for WPPSS heclear Project l'unber 2.

Attached are comments and requests for further information regarding the adequacy of the seismic and quality group classifications indicated on the applicant's diagrams.

0,41ul sens by v. stene Victor' Stello, Jr., Assistant Director for Reactor Safety Directorate of Licensing

Enclosure:

Coavnents cc w/o encl.

A. Giambusso, L W. G. Mcdonald, L 0

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S. Hanauer, DRTA y

F. Schroeder, L t 1 l

W. Butler, L: LWR J, D. Orndoff, L:LWit T. Novak, L R. Kirkwood, L R. Radlinski. L

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Richard C. DeYoung, Jr., Assistant Director for Ll:R's, Group 1, L WPPSS !!UCLEAP PR3]ECT fl0. 2 Plant f:ame: Hanford fluclear Power Plant, llo. 2 Licensing Stage: Post CP Docket No: 50-397 Technical Assistr.nce Request I;o: 842 Responsible Dranch and Project Leadcr: LUR l-2, J. D. Orndoff Requested Completion Date: October 25, 1974 Description of Response: !!one Required Review Status: Complete As an attacha,ent to L. L. Humphreys' lei.l.er of Jenuary 18, 1974 to A. Giambusso, the applicant transmitted a copy of the safety related piping and instrumentation diagrams for lGPSS fiuclear Project liumber 2.

Attached are co ments and requests for further information regarding the adequacy of the seismic and quality group classifications indicated on the applicant's diagrams.

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Victor Stello, Jr., Assistant Director for Reector Safety Directorate of Licensing

Enclosure:

Comments cc w/o encl.

A. Giambusso, L W. G. Mcdonald, L cc w/ encl.

S. Hanauer, DRTA F. Schroedce, L W. Butler, L:LUR J. D. Orndoff, L:lllR T. Novak, L R. I'.i r!alood, L R. Radlinski, L

211.0 REACTOR SYSTEMS BRANCH 211.1 In Drawing M-512, the applicant should indicate the seismic and quality group classification cf the diesel oil system and the diesel auxiliary systems (cooling water, lube oil, and starting air).

It is our position that these systems be Seismic Category I, Quality Group C.

211.2 In Drawing M-5271, the HPCS suctirn line from the condensate stcrage tank provides the initial source of makeup water to the HPCS system fo.r. safety injection. Consequently, this line should be constructed to standards higher than normal industry practice. The applicant should provide full volumetric exami-nation of every weld in the HPCS pump suction line.

211.3 In Drawing M-529, the 2 inch line (A inch at the vessel connec-tion) connected to the reactor vessel head is incorrectly classified as Quality Group D.

This line should be classified Quality Group A.

211.4 In Drawing M-529, the main stean drain line, classified Quality i

Group 0, is connected to main steam lines A and B, classified Quality Group B.

The main steam drain line should be' Quality Group B out to and including an isolation valve either normally closed or capable of automatic closure in the event of failure of the Quality Group D portion of the drain line.

211.5 In Drawing M-530, the 2 inch line connected to the battom of the reactor vessel is incorrectly classifi.ed as Quality Group C.

This line, as shown, forms part of ~ the reactor coolant pressure boundary and should be classified Qual,ity, Group A.

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211.6 In Drawing M-554, indicate'the: classification of the components

' of the hydrogen recombiner system. This system should be Seismic Category I and Quality Group E.

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