ML20198P664
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| 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: |
| References | |
| FOIA-99-32 NUDOCS 9901070102 | |
| Download: ML20198P664 (1) | |
Text
_.
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
[
- Mark, y
l 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
- 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