05000255/LER-1980-002, Notifies That Current Main Steam Line Break Analysis Requested in NRC Cannot Be Completed Until Containment Spray Problem Identified in LER 80-002,is Resolved

Notifies That Current Main Steam Line Break Analysis Requested in NRC Cannot Be Completed Until Containment Spray Problem Identified in LER 80-002,is Resolved

ML18044A764
Person / Time
Site:	Palisades
Issue date:	04/11/1980
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Ziemann D Office of Nuclear Reactor Regulation
References
TASK-06-03, TASK-15-02, TASK-15-2, TASK-3-5.A, TASK-6-3, TASK-RR NUDOCS 8004150627
Download: ML18044A764 (1)

LER-1980-002, Notifies That Current Main Steam Line Break Analysis Requested in NRC Cannot Be Completed Until Containment Spray Problem Identified in LER 80-002,is Resolved

Event date:
Report date:
2551980002R00 - NRC Website

text

consumers Power company General Offices: 21:1 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 April 11, 1980 Director, Nuclear Reactor Regulation Att Mr Dennis L Ziemann, Chief Operating Reactors Branch No 2 US Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - AUTOMATIC INITIATION OF AUXILIARY FEEDWATER SYSTEM AT PALISADES PLANT Consumers Power Company was requested by NRG letter dated December 21, 1979 to respond to a concern regarding the applicability of the current main steam line break analysis.

Our submittal dated January 21, 1980, Item 2g, committed to recalculating the containment pressure response assuming that at two minutes, 250 gpm of cold feedwater would begin entering the broken steam generator, immediately flash to steam, and be transmitted to containment.

With regard to containment heat removal systems, the activation times assumed in the FSAR will be likewise assumed in this reanalysis.

This analysis cannot be completed until the contaiment spray problem, LER 80-002, is resolved.

The results of the reanalysis will be provided to the NRG when it is completed.

David P Hoffman Nuclear Licensing Administrator CC JGKeppler, USNRC 3 004150 b 2-7,