ML19294C019
| ML19294C019 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/26/1980 |
| From: | Delgeorge L COMMONWEALTH EDISON CO. |
| To: | Parr O Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8003060545 | |
| Download: ML19294C019 (3) | |
Text
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Commonwealth Edison One First National Plaza. Chicago. Illino_is Address Rep!y to: Post Ofhce Box 767 Chicago, llhnois 60600 February 26, 1980 Mr. Olan D. Parr, Chief Light Water Reactors - Branch 3 Division of Project Management U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
ASBE Code Case on Hydorstatic Testing of Piping (Section III, Div. 1 Construction)
LaSalle County Station, Units 1 and 2' t'RC Docket !bs. 50-373 and 50-374
Dear Mr. Parr:
This is to inform you of the intent on the part of Conmonwealth Edison to make use of ASBE Code Case N-241 approved July 9,1979 to exempt certain piping subject to the requirements of the ASME Code from Hydrostatic Testing.
The intended application of this Code Case for raSalle County Station is delineated in the attachment to this letter. Also included as an attachment is a copy of Code Case N-241 This Code Case was reviewed and accepted without comment try the NRC representatives to the ASME Council (Mr. R. J. Boznak and C. A. Arlotto) and it is hoped that it will be acknowledged by the Staff as acceptable for immediate use. Please advise us as soon as possible if you have any questions on this case or its intended applications.
Should any questions exist, we request that a meeting be scheduled innediately so that we may address and resolve your concerns. It is our hope that you will review this issue as soon as possible so that the LaSalle County review schedule is not adversely affected.
One (1) signed original and thirty-nine (39) copies of this letter and attachments are enclosed for your use.
Very truly yours, 1
- f L. O. DelGeorge Attachment Muclear Licensing Administrator IaSalle County Station cc: Messrs. C. Reed A. Bournia 3003060 5 @
ATTAOBMTP Code Case N-241 is to be used on the SW discharge piping below the water line in the suppression pools.
It is our intention to install the discharge piping and the quenchers cctnplete, then cut and plug the piping above the slip joint but below the waterline and perform the hydrostatic testing from the SW to the plug. After testing, a PUP will be wel.ded in the pipe and the portion downstream fo the waterline not be tested.
'Ihis piping has been designcd and installed to ASP 2 Section III Code. Once the quenchers are installed, it would be impossible to hydro the pipe without the above procedure. Also installing the quenchers will take too much time to perform this operation after the hydro test and still meet out scheduled service date.
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CASE IuC N-241 CASES OF AS\\fE B0ll.ER AND PRESSLRE VE5SEL CODE 1
Meeting of May 4, I979 Approved by Couned, July 9,1979 9
This Case shall expire on July 9,1982 unless previously annulled or reaffirmed.
I 1
Case N 241 ment vessel may b, exempt from bydrostatic testing Hydrostatic Testing of Piping provided tbt all of the following are complicil with:
Section ill, Division 1 (1) The exempted portions of piping within the sup-(
pres 3 ion pool and the minimum IWign Lesel of the Iquiry: For Section III, Division I construction, may suppre* ion pool shall be specifically doi;;nated in the those portions of Class 2 and 3 safety and safety relief Desi;;n Specification for the piping.
valve piping that discharge to and are submeryd in a con-(2) The Design Specification specified in (1) shall be tainment pressure suppressior, pool of a SIC or CC con-available to the Authorized Nuclear Inspector when the tainment vessel be exempt from hydrostatic testing?
balance of the piping system not exempted is hydro-statically tested.
Reply: For Section III, Division 1 construction, those (3) All other requirements of Subsection NC or ND portions of Class 2 and 3 safety and safety relief salve shall be complied with.
piping that discharge to and are submerged in a cootain-(4) L'se of this Case shall be noted in the appropriate ment pressure suppression pool of a SIC or CC contain-piping system Data Report Form.
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