ML18139B603

Requests Relief from Hydrostatic Test Requirements for Welded Joints Going to a & B Steam Generators.No Reduction in Level of Quality Will Result.Use of One of Remaining Four Secondary Hydrostatic Test Cycles Is Unwarranted

ML18139B603
Person / Time
Site:	Surry
Issue date:	11/05/1981
From:	Leasburg R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Varga S Office of Nuclear Reactor Regulation
References
628, NUDOCS 8111100566
Download: ML18139B603 (1)

Text

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R.H.LEASBURO November 5, 1981 VICE PRESXDENT NUCLEAR OPERATIONS Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn: Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Surry Power Station Unit 2 will be performing a design change to the three inch Auxiliary Feedwater piping to each steam generator during the upcoming Refueling Outage. The piping involved is ASME Code Class 2, and the applicable code for the repair is ASME Section XI 1974 edition with addenda through summer 1975. In accordance with 10CFR 50.55a, paragraph g (5), we are requesting relief from hydrostatic test requirements for the welded joints going to A & B Steam Generators. "C" Steam Generator will undergo hydrostatic testing for work on the shell and the Auxiliary Feedwater weld joints will be included.

The following justification is provided for the relief from hydrostatic test requirements on A & B Auxiliary Feedwater piping joints:

1.) The locations of the welded joints (four total) are unisolable from the steam generators, thus a complete secondary side hydrostatic test would be required. Only five (5) such test cycles are designed into the steam generators.

2.) 100% radiography and ultrasonic testing of all new joints will be substituted as an alternate examination method. Additionally, an inservice leak test at hot shutdown will be performed.

3.) We have discussed this approach with Ricky Smith, the Assistant Chief from Hartford Steam Boiler Inspection and Insurance Company, and he expressed concurrence.

It is our position that no reduction in the level of quality will resuLt from this substitution and that the use of one of the remaining four secondary hydrostatic test cycles is therefore unwarranted.

Nf'

,/o cc: Mr. James P. O'Reilly, Director

' 8111100566-811105 ____

• PDR ADOCK 05000281

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1 Office of Inspection and Enforcement

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