ML18004A343
| ML18004A343 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 07/22/1986 |
| From: | Cutter A CAROLINA POWER & LIGHT CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML18004A344 | List: |
| References | |
| NLS-86-230, NUDOCS 8607300149 | |
| Download: ML18004A343 (8) | |
Text
REGULA 2Y INFORNATION DISTR IBUTI SYSTEN
('R IDS)
ACCESSIQN NBR: 8607300149 DOC. DATE: 86/07/22 NOTARIZED:
YES DOCKET FACIL:50-400 Shearon Harris Nuclear Poiijer Plant>
Unit 1. Carolina 05000400 AUTH. NANE AUTHOR AFFILIATION CUTTER> A. B.
Carolina" Poiiier Zc Light Co.
RECIP NAii1E RECIPIENT AFFILIATION DENTQN> H. R.
Office of Nuclear Reactor Regulation>
Director (post 851125
SUBJECT:
Forwards addi info re change of auxiliary control panel room from fire area to fire zone 0 Rev 31 to FS*R> amending Section
- 9. 5.
1 to support removing Tech Specs on fire protection.
DIETRIDVTIDN CODE:
ADDED CDPIEE RECEIVED: LTR Q ENCL~ SIZE:
TITLE: QR/Licensing Submittal: Fire Prutection NOTES: Application for permit reneiiial +iled.
05000400 RECIPIENT ID CODE/NANE PWR-A PD2 LA BUCKLEY B INTERNAL: ADN/LFNB IE WHITNEY>L NRR WERNEIL. J06.,
RGN2 COPIES LTTR ENCL 1
0 1
1 0
1 1
1 0
1 1
REC IPIENT ID CODE/MANE PWR-A PD2 PD 01 PWR-A PSB ELD/HDS1 N
G> J 07 REG FILE 04 COPIES LTTR ENCL 5
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2 2
1 EXTERNAL: LPDR NSIC 03 05 1
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1 NRC PDR 02, TOTAL NUNBER OF COPIES REQUIRED:
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Carolina Power 8 Light Company JUL ~~
1SSe SERIAL: NLS-86-230 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO.
1 - DOCKET NO.50-000
'IRE PROTECTION
Dear Mr. Denton:
Following discussions with your staff, Carolina Power 2 Light Company was requested to provide additional information concerning the following:
1)
Changing the AuxiliaryControl Panel room from a fire area (I-A-ACP) to a fire zone and including this zone within Switchgear Room B fire area (I-A-SWGRB).
2)
Additional FSAR revisions to Section 9.5.1 to support removing that portion of the Shearon Harris Technical Specifications dealing with fire protection.
Attachment 1 provides the technical details necessary to review the reclassification of fire area 1-A-ACP. Also included is a revised page to our response to Question 280.1 which was last submitted on May 7, 1986. This change willnecessitate a revision to the Shearon Harris Safety Evaluation Report, Section 9.5.1.6, Fire Protection of Specific Plant Areas. includes the revised FSAR pages to Section 9.5.1 and these changes have been incorporated in the Shearon Harris FSAR as Amendment 31.
Each page bears the amendment number, and technical changes are marked by vertical lines in the page margin. Instructions for entering the pages are included.
PDR ADOCg 7~~
8607300149 0S000eoO PDR J
411 Fayetteville Street o P. O. Box 1551
~ Raleigh, N. C. 27602
s
~ Mr. Harold R. Denton NLS-86-230/Page 2
Should you have any questions concerning this letter, please contact Mr. Patrick P.
Carier at (919) 836-8165.
Yours very tr 1
ABC/PS/crs (3982PSA)
Attachments
. Cutter Vice Pr ident Nuclear Engineering R Licensing cc:
Mr. B. C. Buckley (NRC)
Mr. G. F. Maxwell (NRC-SHNPP)
Dr. 3. Nelson Grace (NRC-Rll)
Wake County Public Library A. B. Cutter, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power R Light Company.
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ATTACHMENT 1 TO NLS-86-230 CPRL's revised response to NRC Question 280.1 (NLS-86-137 dated May 7, 1986) identified in Section C.7.f that the panels providing remote shutdown capability are remote from the Control Room and separated from other plant areas by barriers having a fire resistance rating of three hours.
The NRC Guideline for Section C.7.f only requires that the remote shutdown panels be separated from the Control Room complex by barriers having a minimum fire rating of three hours.
CPRL proposes to revise our 280.1 response as shown in the page that follows, to comply with the NRC Guidelines.
FSAR Figure 9.5A-13 reflects that Fire Areas 1-A-ACP, 1-A-CSRA and 1-A-CSRB (which contain remote shutdown panels) are separated from Fire Areas 12-A-CR and 12-A-CRC (Control Room Complex) by barriers having a fire resistance rating of three hours.
FSAR Figure 9.5A-9 reflects the change to combine Fire Areas l-A-,ACP R 1-A-SWGRB into one fire area, therefore eliminating the need for the fire wall which previously separated them.
CPdcL feels the changes described above still comply with the NRC Guidelines specified in NUREG 800 9.5-1 Section C.7.f.
(3982PSA/crs)
the control room complex by barriers having a minimum fire rating of 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.
Panels providing remote shutdown capability should be electrically isolated from the control room complex so that a fire in either area will not affect shutdown capability from the other area.
The general area housing remote safety-related panels should be provided with automatic fire detectors that alarm locally and alarm and annunciate in the control room.
Combustible materials should be controlled and limited to those required for operation.
Portable extinguishers and manual hose stations should be readily available in the general area.
PROJECT CONFORMANCE:
C. POSITION (Cont'd)
C.7.f.
Remote Safet -Related Panels Areas remote from the control room, containing safety-related
- panels, are provided with detectors which alarm locally and alarm and annunciate in the Control Room.
Panels providing.remote shutdown capability are remote from the Control Room complex and separated by barriers having a fire resistance rating of 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.
Panels providing remote shutdown and those in the Control Room are electrically isolated and are connected to redundant transfer panels each of which are located in separate fire areas.
Ionization detectors alarm locally and alarm and annunciate in the Control Room.
Portable extinguishers and manual hose stations are available in the area.
Redundant safety-related panels required for Safe Shutdown are separated as described in the Safe Shutdown Analysis in Case of Fire.
NRC GUIDELINES:
C.
POSITION (Cont'd)
C.7.g.
Safet -Related Batter Rooms 4
Safety-related battery rooms should be protected against fires and explosions.
Battery rooms should be separated from each other and other areas of the plant by barriers having a minimum fire rating of 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> inclusive of all penetrations and openings.
DC switchgear and inverters should not be located in these battery rooms.
Automatic fire detection should be provided to alarm and annunciate in the control room and alarm locally.
Ventilation systems in the battery rooms should be capable of maintaining the hydrogen concentration well below 2 vol-X.
Loss of ventilation should be alarmed in the control room.
Standpipe and hose and portable extinguishers should be readily available outside the room.
PROJECT CONFORMANCE:
C.
POSITION (Cont'd)
C.7.g.
Safet -Related Batter Rooms The battery rooms are separated from each other and other plant areas by barriers having a minimum fire resistance rating of three hours including all penetrations and openings.
DC switchgear and inverters are not located in the battery rooms.
They are located in the switchgear rooms.
Automatic ionization type smoke detection is provided inside battery 89 (3276PPC)
ATTACHMENT 2 TO NLS-86-230