ML18046A868

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Comments on Draft Evaluation of SEP Topic III-4.C Re Internally Generated Missiles in Response to NRC . Primary Coolant Pump Flywheel Integrity Was Addressed in SEP Topic III-10.B
ML18046A868
Person / Time
Site: Palisades 
Issue date: 08/10/1981
From: Vincent R
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
TASK-03-04.C, TASK-03-10.B, TASK-3-10.B, TASK-3-4.C, TASK-RR NUDOCS 8108140281
Download: ML18046A868 (2)


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consumers Power company General Offices: 212 West Michigan Avenue, Jeckson, Mi 49201 * (617) 788-0650 August 10, 1981 Director, Nuclear Reactor Regulation Att Mr Dennis M Crutchfield, Chief Operating Reactors Branch No 5 U S Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - SEP TOPIC III-4.C, INTERNALLY GENERATED MISSILES By letter dated July 20, 1981, the NRC transmitted for comment a draft evalua-tion of SEP Topic III-4.C for the Palisades Plant.

Consumers Power Company has reviewed this document and provides the following comments for your consideration:

1.

Page 7, first paragraph - Primary Coolant Pump flywheel integrity was addressed in Topic III-10.B.

2.

Page 13, second paragraph - 350°F should be 325°F.

3.

Page 14, second paragraph - The CCW pumps and heat exchanges are on the 590' elevation which is essentially at grade level.

4.

Page 17, last paragraph - This paragraph is somewhat confusing.

Three high pressure air compressors are installed in the plant..

  • One is in each engin-eered safeguards room, and the third is in the turbine building.

As stated, the non-safety related turbine building system is normally isolated from the safety-related systems in the engineered safeguards rooms.

The safety-related systems are missile-protected by virtue of their locations in the engineered safeguards rooms.

5.

Page 24, first paragraph - The sampie line delay coil has been removed.

Also, it is not clear what steel shield wall protects the sample panel un-less it is. the steel panel enclosure itself.

The panel is located in a small room which has concrete walls.

6.

Page 25 - third paragraph - The containment sump gravity drains to the dirty waste drain tank.

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August 10, 1981 Page Two

7.

Page 26 - third paragraph - It is not clear what is meant by the statement that the battery auxiliary systems are independent.

If auxiliary systems imply the chargers and de busses, this statement is correct.

Robert A Vincent Staff Licensing Engineer CC Director, Region III, USNRC NRC Resident Inspector-Palisades