ML20058J562

Application to Amend Tech Specs Re Snubbers Removed W/Relocation of Pressurizer Code Safety Valves

ML20058J562
Person / Time
Site:	Davis Besse
Issue date:	08/03/1982
From:	Crouse R TOLEDO EDISON CO.
To:
Shared Package
ML20058J560	List: ML20058J556 ML20058J562 ML20058J568
References
NUDOCS 8208110108
Download: ML20058J562 (2)

Text

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r APPLICATION FOR AMENDMENT ,

TO FACILITY OPERATING LICENSE NO. NPF-3 FOR DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 Enclosed are forty-three (43) copies of the requested changes to the D:,vis-Besse Nuclear Power Station Unit No. 1 Facility Operating License

! No. NPF-3, together with the Safety Evalution for the requested change.

The proposed changes include Table 3.7-3.

[

By /s/ R. P. Crouse Vice President, Nuclear l

Sworn and subscribed before me this 3rd day of August, 1982.

1 Peggy Tompkins Notary Public My commission expires 10/24/86 SEAL 8208110100 820803 PDR ADOCK 05000346 P PDR

Docket No. 50-346 License No. NPF-3 Serial No. 844 August 3, 1982 Attachment

1. Changes to Davis-Besse Nuclear Power Station Unit 1. Appendix A Technical Specifications Table 3.7-3.

A. Time required to Implement. This change is to be effective upon NRC approval.

B. Reason for Change (Facility Change Request 82-098). The snubbers were removed with the relocation of Pressurizer Code Safety valves.

C. Safety Evaluation During the 1982 Refueling Outage, the Pressurizer Code Safety Valves were relocated to the top of the pressurizer. The analysis of the piping showed when the valves were relocated that the snubbers on the discharge piping could be replaced with struts. The safety function of hydraulic snubbers is to ensure that the structural integrity of the Reactor Coolant System and all other safety related systems are maintained during and following a seismic or other event initiating dynamic loads.

Snubbers 30-GCC-8-Ill7 were removed and replaced with sway struts. The safety function of the snubbers is now accomplished by the sway struts. Therefore, this is not an unreviewed safety question.