ML20084R231

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Submits Final Response to NUREG-0737,Item II.D.1 Re Relief & Safety Valve Testing.Unit 1 Relief Line Support Work Completed During Fall 1983 Refueling & Steam Generator Replacement Outage & Unit 2 Work Completed Spring 1983
ML20084R231
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 05/17/1984
From: Fay C
WISCONSIN ELECTRIC POWER CO.
To: Harold Denton, John Miller
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.D.1, TASK-TM NUDOCS 8405220238
Download: ML20084R231 (2)


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9%sconsm Electncmacwa 231 W. MICHIGAN, P.O. BOX 2046, MILWAUKEE, WI 53201 May 17, 1984 Mr. H. R. Denton, Director Office of Nuclear Reactor Regulation U. S. NUCLEAR REGULATORY COMMISSION Washington, D. C. 20555 Attention: Mr. J. R. Miller, Chief Operating Reactors, Branch 3 Gentlemen:

DOCKET NOS. 50-266 AND 50-301 FINAL RESPONSE TO NUREG-0737, ITEM II.D.1 RELIEF AND SAFETY VALVE TESTING POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 This letter summarizes the activities completed since our submittal dated December 23, 1982 which have been performed in fulfillment of the requirements of NUREG-0737, Item II.D.l. Our December 23 letter forwarded the report on the EPRI Test Program which evaluated the Crosby safety valves used in the Point Beach pressurizer safety valve relief lines. In accordance with that report, we engineered several changes in the piping support system to accommodate the calculated flow induced loads during transient conditions.

The Unit 1 relief line support work was completed during the fall 1983 refueling and steam generator replacement outage.

Seven new supports were added, four existing supports were modified, and two supports were removed. Additionally, as described in our report, the pressurizer loop seals were insulated to increase the loop seal water temperaturo to reduce downstream loading on the relief line piping during valve actuation.

The Unit 2 support work was completed in the spring 1983 refueling and steam generator sleeving outage. Nine new supports were added, two existing supports were modified, and two supports were removed. As in Unit 1, the pressurizer loop seals were insulated.

No additional testing, analyses, or support modification work is required with respect to NUREG-0737, Item II.D.l. Therefore, 8405220238 840517 A PDR ADOCK 05000266 p PDR 4\

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Mr. H. R. Denton May 17, 1984 ,

we consider this item to be completed for Point Beach Nuclear Plant, Units 1 and 2, and this is our final response with respect to this item. If you have any further questions concerning this item, please do not hesitate to contact us.

! Very truly yours, Vice President-Nuclear Power

. C. W. Fay Copy to NRC Resident Inspector i

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