TXX-4960, Requests Approval for Use of ASME Code Case N-253-4, Const of Class 2 or 3 Components for Elevated Temp Svc,Section Iii,Div 1, as Part of S&W Piping & Pipe Support Requalification Program

From kanterella
(Redirected from TXX-4960)
Jump to navigation Jump to search
Requests Approval for Use of ASME Code Case N-253-4, Const of Class 2 or 3 Components for Elevated Temp Svc,Section Iii,Div 1, as Part of S&W Piping & Pipe Support Requalification Program
ML20203L600
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 08/26/1986
From: Counsil W
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To: Noonan V
NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
References
TXX-4960, NUDOCS 8608290007
Download: ML20203L600 (1)


Text

Log # TXX-4960 File # 10010 TEXAS UTILITIES GENERATING COMPANY NKYWAY TOWER e 400 NORTH OLIVE NTREET. L.H. 81 = DALLAN.1EXAS 75301 August 26, 1986

2M1* *.?.7L',

Director of Nuclear Reactor Regulation Attn: Vince S. Noonan, Director Comanche Peak Project Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 CODE CASE APPROVAL REQUEST

Dear Mr. Noonan:

As part of the piping and pipe support requalification effort being performed by Stone & Webster Engineering Corporation (SWEC) for CPSES, NRC approval is requested for the use of Code Case N-253-4 dated February 14, 1985,

" Construction of Class 2 or 3 Components for Elevated Temperature Service,Section III, Division 1".

The ASME Section III Code does not include requirements for design of components required to operate at high temperatures. Code Case N-253-4 provides these design requirements. This Code Case will be used in the requalification of the CPSES diesel generator exhaust system components.

Approval of this Code Case will provide a recognized design basis for these components. -

Application of this Code Case will not degrade the safety and integrity of the piping and pipe supports.

Very truly yours,

/ff.8L W. G. Counsil BSD/amb (0 + 40 copies) c C. Trammell 8608290007 860826-PDR A

ADOCK 05000445 PDR US a invsssos or rexsu trrn.tries es.scrusc coursur .

(

- - _ - . - - . _ . - . .- ._. - - . _ . _ . - . _ - . . - . . - . _ . _ _