ML20128B009
| ML20128B009 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 02/01/1993 |
| From: | William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TXX-93076, NUDOCS 9302020370 | |
| Download: ML20128B009 (2) | |
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File # 10010 TUELECTRIC fh59,4g p,7, y
February 1, 1993 wulism J. Cahill. Jr.
ormn a rm,sa.o U. S. Nuclear Regulatory Commission Attn:
Document Control Desk d
Washington, DC 20555 i
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES) - UNIT 2 DOCKET NO. 50-446 36 INCH WIDE CABLE TRAY REF:
dated January 25, 1993
- 2) -TV Eiectric letter logged TXX-93061 from William J. Cahill, Jr. to the USNRC-i dated January 28, '993 E
- 3) USNRC letter from Suzanne C. Black to William J.-Cahill, Jr. dated October. 29, 1992
- 4) TO Electric 1etter logged TXX-92331 from
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William J. Cahill, Jr. to USNRC dated July 9, 1992 Gentlemen:
TV Electric provided clarifications regarding the qualification of 36 inch cable tray Thermo-Lag 330-1 fire barrier via reference 1 and reference 2.
Thistestwasconductedasscheme1-2-(scheme 1).
Justification for the acceptability of this test was documented in reference 1 attachment-4.
In order to resolve NRC concerns, TV Electric will take one of the following actions
- a)
Perform a confirmatory test-for a 36 inch wide cable tray Thermor Lag 330-1 fire barrier system utilizing the acceptance criteria provided-in reference 3; b)
Participate in'the testing program (s)' initiated by the industry to resolve the concerns regarding cable tray fire barrier systems;
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c)
Provide additional clarification /,iustification with respect to the i
acceptability of the scheme 1 (i.e.
36 inch wide cable tray)..
These actions will be completed by the end of the first refueling outage for Unit 2.
i The 36 inch wide cable trays of concern ure located in the Auxiliary Building, which is a common building for Unit 1 and Unit 2.
As stated in r
response to NRC Bulletin 92-01 (reference 4), compensatory measures have been established, and will remain in place until in each plant area with Thermo-Lag until the qualification of the Thermo-Lag in that area is established.
Sincerely,
.M William J. Cahill Jr.
i OB/tg c-Mr. J. L. Milhoan Region IV Mr. B. E. Holian NRR Mr..f. A. Bergman NRR Resident Inspectors. CPSES (2) l 1
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