ML20198P664

Submits Brunswick Responses to Recipient EQ Questions

ML20198P664
Person / Time
Site:	Brunswick
Issue date:	02/12/1997
From:	Trimble D NRC (Affiliation Not Assigned)
To:	Reinhart M NRC (Affiliation Not Assigned)
Shared Package
ML20198P464	List: ML20198P462 ML20198P477 ML20198P529 ML20198P619 ML20198P664 ML20198P712 ML20198P728 ML20198P743
References
FOIA-99-32 NUDOCS 9901070102
Download: ML20198P664 (1)

Text

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From: David Trimble e A 84/ 4W E To: FMR /R d ,0,,hc4 ,'*W /D M  ;

l Date: 2/12/97 3:11pm l

Subject:

BRNSWK RESPONSES TO YOUR EQ QUESTIONS l

[ Mark, y l

I Here are the Brunswick responses to your EQ questions:

1. Q: Effect of black oil-based paint on jacketing material? A: No visualindication that the coating had degraded the Jacket. They couldn't point to any other information showing no

[ long-te.7n degradation effects on material properties. During UL fire testing of the jacketing material, both oil and water were spashed on the material, and the material passed satisfactorily.

l

2. Q: If Methyl acrylate the limiting material for physical properties, does this mean it is also the limiting material for radiation? A: Yes. j 1

3. Q: Is Santoprene satisfactory for use after exposure to 1.0E7 rads when your data indicates a reduction in properties on the order of 25%? A: Performance will be satisfactory for three reasons: (1) The Brunswick application is a static application, i.e. would not expect flexing of conduit during an accident, and in such an application, reductions in properties of this magnitude do not present a problem; (2) the vendor told the licensee that the material will perform satisfactorily under these conditions; and (3) the EPRI NP-1558 info. adds additional

! confidence that the material can perform satisfactorily at 1.0E7 rads.

Dave E

l 9901070102 981221 7 PDR FotA PAYNE99-32 PDR 4 90 IO)Clo ?