ML20236F737

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Informs That 980518 Response to RAI Re GL 92-08,Thermo-Lag Related Ampacity Derating Issues for Plant Adequately Addresses Staff Request
ML20236F737
Person / Time
Site: Clinton Constellation icon.png
Issue date: 07/01/1998
From: Hopkins J
NRC (Affiliation Not Assigned)
To: Sipek J
ILLINOIS POWER CO.
References
GL-92-08, GL-92-8, TAC-M85535, NUDOCS 9807020309
Download: ML20236F737 (4)


Text

- _ - _ - _ _ - _ _ - _ _ _ _ - _ _ - _ - _ _ _ _ - _ - _ - _ _ _ _ _ - _ - -

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July 1, 1998

,. { Mr. Joseph V. Sipek--

Director- Licensing

' Clinton Power Station P.O. Box 678.

l Mail Code V920'-

Clinton', IL 61727

SUBJECT:

GENERIC LETTER 92-08, THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR CLINTON POWER STATION (TAC NO. M85535)

Dear Mr. Sipek:

. By s. Commitments Made by Util,Listed|letter dated May 18,1998]], you responded to our request for s:lditional information dated March 27,1998, concerning Thermo-Lag related ampacity derating issues for the Clinton Power Station (CPS). Two commitments were contained in your letter regarding (1) ensuring a I: minimum 41.4 percent ampacity derate factor applied to 3-hour Thermo-Lag cable tray

- installations, and (2) verification that Thermo-Lag enclosed raceways are installed and constructed in a manner representative of the applicable tested fire barrier configurations.

! The NRC' staff has reviewed the information provided and finds that it adequately addresses the -

l . staff's request for additional information of March 27,1998. Therefore, the staff has no further g

I questions regarding Thermo-Lag related ampacity derating issues for CPS. J L Sincerely, l Original signed.by:

Jon B. Hopkins, Senior Project Manager -

Project Directorate lll-3 l-Division of Reactor Projects Ill/IV Office of Nuclear Reactor Regulation

, Docket No. 50-461 - Distnbution

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Docket File! PUBLIC

.'cc: See next page . ACRS PD33 R/F

~EGA1 GGrant, Rill RBellamy OGC RJenkins - AKugler

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0FFICE PM:PDIII-3 4E LA:PDIII-3 lE NAME- JHopkins ~ h EBarnhill & ,

DATE- r1/ - / /98 6 7/l/98- '

I OFFICIAL RECORD. COPY

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July 1, 1998 y

[* Mr. Joseph V. Sipek i Director- Licensing Clinton Power Station P.O. Box 678 Mail Code V920 Clinton,IL 61727 l

l

SUBJECT:

GENERIC LElTER 92-08, THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR CLINTON POWEft STATION (TAC NO. M85535)

Dear Mr. Sipek:

By s. Commitments Made by Util,Listed|letter dated May 18,1998]], you responded to our request for additional inforrnation dated March 27,1998, conceming Thermo-Lag related ampacity derating issues for the Clinton Power Station (CPS). Two commitments were contained in your letter regarding (1) ensuring a minimum 41.4 percent ampacity derate factor applied to 3-hour Thermo-Lag cable tray installations, and (2) verification that Thermo-Lag enclosed raceways are installed and constructed in a manner representative of the applicable tested fire barrier configurations.

The NRC staff has reviewed the information provided and finds that it adequately addresses the staff's request for additional information of March 27,1998. Therefore, the staff has no further questions regarding Thermo-Lag related ampacity derating issues for CPS.

Sincerely, Original signed by:

Jon B. Hopkins, Senior Project Manager Project Directorate 111-3 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation Docket No. 50-461 Distribution:

Docket File PUBLIC cc: See next page ACRS PD33 R/F EGA1 GGrant, Rlli RBellamy OGC RJenkins . AKugler Document Name: G:\CLINTON%MPAC.LTR 0FFICE PM:PDIII-3 ,

E LA:PDIII-3 lE _

NAME JHopkins [V EBarnhill[/p-DATE rJ / / /98 5 7 / / /98 0FFICIAL RECORD COPY

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NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20556 0001

%...../ July 1, 1998 Mr. Joseph V. Sipek l Director- Licensing Clinton Power Station P.O. Box 678 Mail Code V920 Clinton,IL 61727

SUBJECT:

GENERIC LETTER 92-08, THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR CLINTON POWER STATION (TAC N". M85535)

Dear Mr. Sipek:

By s. Commitments Made by Util,Listed|letter dated May 18,1998]], you responded to our requert for additional information dated March 27,1998, concerning Thermo-Lag related ampacity derating issues for the Clinton Power Station (CPS). Two commitments were contained in your letter regarding (1) ensuring a minimum 41.4 percent ampacity derate factor applied to 3-hour Thermo-Lag cable tray installations, and (2) verification that Thermo-Lag enclosed raceways are installed and constructed in a manner representative of the applicable tested fire barrier configurations.

The NRC staff has reviewed the information provided and finds that it adequately addresses the staff's request for additionalinformation of March 27,1998. Therefore, the staff has no further questions regarding Thermo-Lag related ampacity derating issues for CPS.

Sincerely, c -

Jon B. Hopkins, Senior Project Manager Project Directorate ill-3 Division of Reactor Projects Ill/IV Office of Nuclear Reactor Regulation Docket No. 50-461 cc: See next page

I r.

t Joseph V. Sipek Clinton Power Station, Unit 1 i Illinois Power Company {

l l cc: )

l Walter G. MacFarland IV lilinois Department of Nuclear Safety Senior Vice President Office of Nuclear Facility Safety Clinton Power Station ATTN: Mr. Frank Nizidlek P.O. Box 678 1035 Outer Park Drive Clinton,IL 61727 Springfield,IL 62704 Wayne Romberg Leah Manning Stetzner Manager Nuclear Station VP, General Counsal & Corp. Secretary Engineering Department 500 South 27th Street Clinton Power Station Decatur,IL 62525 P.O. Box 678 Clinton,IL 61727 l

Resident inspector l U.S. Nuclear Regulatory Commission RR#3,' Box 229 A l

'Clinton,IL 61727

[ R. T. Hill l Licensing Services Manager l General Electric Company 1 175 Curtner Avenue, M/C 481 San Jose, CA 95125 Regional Administrator, Region ll!

U.S. Nuclear Regulatory Commission i

801 Warrenville Road Lisle, IL' 60532-4351 Chairman of DeWitt County clo County Clerk's Office l DeWitt County Courthouse Clinton,IL 61727 J. W. Blattner Project Manager l

Sargent & Lundy Engineers 55 East Monroe Street Chicago,IL 60603 ,

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