ML20235B059

Responds to K Jabbour 870522 Request for Addl Info Re Containment Penetration Overcurrent Protective Devices.Four New Overcurrent Protective Devices Added to Accommodate Decontamination Pressure Washers & Welding Machines

ML20235B059
Person / Time
Site:	Catawba
Issue date:	07/01/1987
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8707080621
Download: ML20235B059 (2)

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' DuxE POWER Godn%NY P.O. nox 33180 CItARLOTTE, N.O. 28241-  ;

HALB. TUCKER TELEPHOftE vwnemenmere (704)073-453s WUt; LEAR ruppt'tfrgON July 1, 1987 i

i U. S. F ,_ ear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 .

J Re: Catawba Nuclear Station, Units 1 and 2 .

Docket Nos. 50-413 and 50-414 Containment Penetration Overcurrent Protective Devices

Dear Sir:

4 i

This letter is in response to the request for additional information contained in the May 22, 1987 letter from Dr. K. Jabbour, NRC/NRR. j i

In response to question I., no new penetrations were added es a result of this change. Four new overcurrent protective devices (two outlets per unit) were added {

to accommodate Decontamination Pressure Washers and welding machines. The pressure l' washers are to be used for decontamination purposes during outage periods. The machines will save person-hours and exposure during the decontamination process of lower containment areas and the refueling cavity. The 50.59 review also concluded that this modification did not involve an unreviewed safety question since no safety systems would be degraded and no functional changes would be made to any system.

I The overcurrent protective devices are similar in all respects to other devices of the same class already installed at Catawba.

In response to question 2., the applicable Penetration Type / Voltage Class as identified in FSAR Table Q430.11-1 are Type F/ Low Voltage. Figure Q430.11-6 is the applicable figure for these devices.

Please advise if any further information is required.

Very truly yours, FL Hal B. Tucker RWO/83/sbn 8707080621 870701 o/

yDR ADDCK 05000413 "R

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1 U. S. Nuclasr Regulatory Commission July 1, 1937 Page Two 1

xc: Dr. J. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 i Atlanta, Georgia 30323 Mr. Heyward Shealy, Chief Bureau of Radiological Health South Carolina Department of Health &

Environmental Control l 2600 Bull Street i Columbia, South Carolina 29201 I American Nuclear Insurers i c/o Dottie Sherman, ANI Library The Exchange, Suite 245 270 Farmington Avenue Farmington, CT 06032 1

M&M Nuclear Consultants {

1221 Avenue of the Americas New York, New York 10020 INPO Records Center Suite 1500 I 1100 Circle 75 Parkway Atlanta, Georgia 30339 l

Mr. P. K. Van Doorn NRC Resident Inspector Catawba Nuclear Station