ML20082F178

Application for Amend to License NPF-12,changing Tech Spec Table 3.8-1 to Add Eddy Current Brake to Nonsafety Reactor Bldg Cooling Unit Fan Motors

ML20082F178
Person / Time
Site:	Summer
Issue date:	11/16/1983
From:	Dixon O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20082F179	List: ML20082F178 ML20082F193
References
NUDOCS 8311280458
Download: ML20082F178 (3)

Text

"

N.,

SOUTH CAROLINA ELECTRIC & GAS COMPANY Post OFFICE 764 COLUMBIA. SOUTH CAROLINA 29218 O. W. DIXON, JR.

VICE PRESIDENT NUCLEAR OPER ATioNS November 16, 1983 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Technical Specifications Table 3.8-1, Containment Penetration Conductor Overcurrent Protective Device Test Setpoint Criteria

Dear Mr. Denton:

South Carolina Electric and Gas Company (SCE&G) requests that Table 3.8-1 of the Virgil C. Summer Nuclear Station Technical Specifications be revised to add containment penetration conductor overcurrent protection devices for an eddy current brake to be added to the non-safety reactor buil. ding cooling unit fan motors.

See attachment 1 and 2 for the additions to Table 3.8-1. ,

Additionally, SCE&G requests that two administrative corrections be made to Table 3.8-1, items 6 and 71. See attachment 3 and 4 l for these item corrections on Table 3.8-1.

I SCE&G has determined that a finding of no significant hazards is j justified based on responses provided in the attached significant hazards consideration.

l

8311280458 831116 $ggd h PDR ADOCK 05000395 EmuW l

! P PDR y pad ' I

~

e.

Mr.' Harold R.'Denton November 16, 1983

-Page #2 The attached Technical Specification change has been reviewed and approved by both the Plant Safety Review Committee.and the Nuclear Safety Review Committee. A check in the amount of four thousand dollars ($4000.00) is provided to process this Technical Specification change.

If you have any questions, please advise.

Ver tru yours O. W. ixo r.

DOH:OWD/rh

Attachment:

cc: V. C. Summer

'T. C.'Nichols,.Jr./O. W. Dixon, Jr.

E. H. Crews, Jr.

E. C. Roberts W..A.. Williams, Jr.

D. A. Nauman J. P. O'Reilly Group Managers O. S. Bradham N. E. Clark R. B. Clary C. A. Price A. R. Koon C. L. Ligon (NSRC)

G. J. Braddick D. J. Richards NRC Resident Inspector J. B. Knotts, Jr.

NPCF File (Lic./Eng.)

+

10 CFR 50.92 SIGNIFICANT HAZARDS CONSIDERATION

1. Would the proposed amendment involve a significant increase ~1n the probability vr consequences of an accident previously evaluated?

Answer: No. Addition of items 167, 168, 169 and 170 to Table 3.8-1, " Containment Penetration Conductor Overcurrent Protective Device Test Setpoint Criteria", provides assurance of breaker and fuse reliability by testing these devices against.the proper setpoint criteria.

2. -Would the proposed amendment create the possibility of a new kind of accident different from any accident previously evaluated?

Answer: No. Containment electrical penetration and penetration conductors are protected by demonstrating the operability of primary and backup overcurrent protection devices.

3. Would the proposed amendment involve a significant reduction in the margin of safety?

Answer: No. The breaker and fuse provide redundant protection against damaging overcurrents. There will be no impact on the margin of safety.

l k