ML20155G445

Forwards Safety Evaluation Re Relief Request to ASME Code Case N-416-1,for Class 1,2 & 3 Piping & Components.Proposed Alternative with Addl Exams Proposed,In Lieu of Performing Sys Hydrostatic Test Provides Acceptable Level of Safety

ML20155G445
Person / Time
Site:	Summer
Issue date:	11/04/1998
From:	Berkow H NRC (Affiliation Not Assigned)
To:	Gabe Taylor SOUTH CAROLINA ELECTRIC & GAS CO.
Shared Package
ML20155G448	List: ML20155G445 ML20155G455
References
TAC-MA1592, NUDOCS 9811090054
Download: ML20155G445 (3)

Text

. __ . .. _ __ _ _._ _ _.___.._._.____.___. _ _ _ _ _ _ . . _ _ _

November 4, 1998

., , Mr. Giry J. Taylor Vice President, Nucber Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065

SUBJECT:

APPROVAL TO USE ASME CODE CASE N-416-1 AT V. C. SUMMER NUCLEAR STATION (TAC NO. MA1592) -

Dear Mr. Taylor:

a South Carolina Electric and Gas Company's (SCE&G's) April 29,1998, letter submitted a relief request seeking NRC approval to use the alternative rules of the American Society of

Mechanical Engineers (ASME) Code Case N-416-1 for Class 1,2, or 3 piping and components.

J We determined that the proposed alternative to use Code Case N-416-1 with the additional

,. examinations proposed, in lieu of performing a system hydrostatic test on Class 1,2, and 3 piping and components after making welding repairs or installing replacement items by welding,

, 'provides an acceptable level of quality and safety. Accordingly, your proposed alternative to use Code Case N-416-1 with additional surface examinations on the root-pass layer of butt and

- socket welds on the pressure-retaining boundary of Class 3 components is authorized pursuant

, to 10 CFR 50.55a(a)(3)(i) for Class 1,2, and 3 systems. We authorize the use of Code Case

- N-416-1, with the additional surface examination as noted above, for the duration of the -

currently approved inservice inspection program plan interval, or until the Code case is approved for general use by reference in Regulatory Guide 1.147.-- At that time, SCE&G must follow the conditions, if any, specified in the regulatory guide. The enclosed Safety Evaluation contains our evaluation of your relief request.

, Sincerely, ORIGINAL SIGNED BY:

Herbert N. Berkow, Director

' Project Directorate ll-2 9811090054 981104 Division of Reactor Projects - l/il DR A M 05 5 p Office of Nuclear Reactor Regulation Docket No. 50-395

Enclosure:

Safety Evaluation NRC FILE CENTER CG.,P3l cc w/ encl: See next page i

'C M Q Distnbution-Docket File . PD ll-2 RF MTschiltz GHill(2) I PUBLIC JZwolinski LPlisco, Ril OGC TMcLellan ACRS FILENAME - G:\ SUMMER \MA1592.REL *See previous concurrence OFFICE PM.PDll-2 LA:PDil-2 EGCB* OGC* NLO DfQR-2 NAME MPadYan Dunnink GBagchi MYoung hBho[

DATE 11/ /98 11/J /98 10/20/98 10/28/98 11/ 3/98 COPY Yes/No Mo-Yes/No 1);,AqQ1 OFFICIAL RECORD COPY

y.y m#*4 UNITED STATES g j t

NUCLEAR REGULATORY COMMISSION WASHINGTON D.C. 20666-0001

$, / November 4,1998 Mr. Gary J. Taylor Vice President, Nuclear Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 20065

SUBJECT:

APPROVAL TO USE ASME CODE CASE N-416-1 AT V. C. SUMMER NUCLEAR STATION (TAC NO. MA1592)

Dear Mr. Taylor.

South Carolina Electric and Gas Company's (SCE&G's) April 29,1998, letter submitted a relief request seeking NRC approval to use the alternative rules of the American Society of Mechanical Engineers (ASME) Code Case N-416-1 for Class 1,2, or 3 piping and components.

We determined that the proposed alternative to use Code Case N-416-1 with the additional examinations proposed, in lieu of performing a system hydrostatic test on Class 1,2, and 3 piping and components after making welding repairs or installing replacement items by welding, provides an acceptable level of quality and safety. Accordingly, your proposed alternative to use Code Case N-416-1 with additional surface examinations on the root-pass layer of butt and socket welds on the pressure-retaining boundary of Class 3 components is authorized pursuant to 10 CFR 50.55a(a)(3)(i) for Class 1,2, and 3 systems. We authorize the use of Code Case N 416-1, with the additional surface examination as noted above, for the duration of the currently approved inservice inspection program plan interval, or until the Code case is approved for general use by reference in Regulatory Guide 1.147. At that time, SCE&G must follow the conditions, if any, specified in the regulatory guide. The enclosed Safety Evaluation contains our evaluation of your relief request.

Sincerely, Op l'

H rbert N. Berkow, Director roject Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket No. 50-395

Enclosure:

Safety Evaluation cc w/ encl: See next page

' Mr. G:ry J. Teylor VIRGIL C. SUMMER NUCLEAR STATION South Carolina Electric & Gas Company cc:

4 Mr. R. J. White '

J. B. Knotts, Jr., Esquire

~ Nuclear Coordinator Winston & Strawn Law Firm 4

S.C. Public Service Authority 1400 L Street, N.W.

c/o Virgil C, Summer Nuclear Station Washington, D.C. 20005-3502 Post Office Box 88, Mail Code 802 Jenkinsville, South Carolina 29065 i

Resident inspector / Summer NPS c/o U.S. Nuclear Regulatory Commission Route 1, Box 64 Jenkinsville, South Carolina 29065 Regional Administrator, Region ll U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Chairman, Fairfield County Council Drawer 60 Winnsboro, South Carolina 29180 =

j Mr. Virgil R. Autry, Director  !

i Division of Radioactive Waste Management Bureau of Land & Waste Management

)

Department of Health & Environmental Control i 2600 Bull Street Columbia,-South Carolina 29201 l ME. Robert M. Fowlkes, Manager I Ooerations -

South Carolina Electric & Gas Company Virgil C. Summer Nuclear Statiorn Mail Code 303 '

Post Office Box 88 -

. Jenkinsville, South Carolina 20065 e

Ms. April R. Rice, Manager Nuclear Licensing & Operating Experience

. South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station, Mail Code 830

. Post Office Box 88 j Jenkinsville, South Carolina 20065 a

i 4

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