ML20011D473

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Forwards Rev 1 to 03-0920-1186, Pipe Rupture Analysis Criteria Outside Reactor Bldg Crystal River Unit 3. High Energy Line break-related Mods Remain on Schedule for Completion by End of Refuel 7
ML20011D473
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 12/18/1989
From: Ken Wilson
FLORIDA POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20011D474 List:
References
3F1289-11, NUDOCS 8912270299
Download: ML20011D473 (2)


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-C O R P O R AT I O N ~'

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-December 16, l'989 '

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E' U.S.-Nuclear Regulatory Commission 3 Attn: Dccument Control Desk Washington, D.C. 20555 ,

Subject:

ChstalRiver.-Unit 3

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Docket No. 50-302 Operating License No-. DPR-72  ?

=_ High' Energy Line Break (HELB)-

Revision of Design Criteria and Schedule Update.

Dee : Sir:

-Florida Power Corporation (FPC) is submitting six copies of Revision l1 to FPC's report." Pipe Rupture Analysis Criteria Outside the Reactor BuildingfCrystal: River Unit 3." Revision 0 was submitted-for NRC l review'in FPC's March'31, 1989 letter.

There. are several fundamental differences between the B31.1-1967 Power. Piping Code.used to. design CR-3'and the ASME Section III code which forms the. break stress' threshold basis of'the Standard Review Plan. The NRC summarized its position regarding this issue and outlined requirements for acceptance in a' September 28, 1989 letter.

These requirements are detailed in Section 4.1.2 of the revised criteria. .The criteria also contains a revised Section 9.0 which

addresses flooding effects following design basis pipe breaks as l .. requested by the November 9, 1989 NRC letter.

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8912270299 891218 k

!:' PDR ADOCK 05000302 l P PDC l POST OFFICE BOX 219

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December 18, 1989'

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.,o The HELB:--related modifications remain'on-schedule-~for completion >

by;the end of Refuel'7. FPC has not identified any problems which

' we expect to preclude completion of the project.

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s a Sincerely,.

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- K.-R. Wilson, Manager '

Nuclear Licensing

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Attachment l xc: . Regional-Administrator, Region II Senior. Resident Inspector 1

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