ML19210B773
| ML19210B773 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 10/31/1979 |
| From: | Naughton W COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19210B774 | List: |
| References | |
| 791030-01, 791030-1, NUDOCS 7911120310 | |
| Download: ML19210B773 (4) | |
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Commonwealth Edison One First National Plaza. Chicago Illinois Address Reply to: Post Office Bcx 767 Chicago. tilinois 60690 October 31, 1979 Dr. Harold R.
Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Zion Station Units 1 and 2 Additional Design Information for Fire Protection NRC Docket Nos. 50-295 and 50-304
Dear Dr. Denton:
In recent discussions with the NRC Staff Fire Prc-tection Review Team for Zion Station, the Review Team indicated a need to review design information for various items contained in the Zion Fire Protection Safety Evaluation Report (SER),
specifically Sections 3.1.3, 3.1.4, 3.1.5 and 3.1.15.
Commonwealth Edison Company is providing the attached design information in response to this NRC request.
The information provided herein is as follows:
1.
SER Item 3.1.3 - Design Information for Gas Suppression Systems a.
Table entitled " Fire Protection Gas Concentration Data" dated October 14, 1979.
The table provides infctmation for the cable spreading areas and fur the diesel-driven containment spray pump area.
b.
Three copies of the following Chemetron drawings for the cable spreading areas.
1, Rev.
E, 3-12-79 Sh.
2, Rev. C, 3-12-79 Sh.
3, Rev. 3, 3-12-79 Sh.
7, Rev. C, 11-6-78 0(p Sh. 15, Rev.
8, 11-6-78 0
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$W 7911120 3/0 svb
Conunonwealth Edison NRC Docket Nos. 50-295/304 Dr. Harold R. Denton: October 31, 1979 Halon System FLR 26435-8 Sh. 4R, Rev.
E, 6-79 Sh. SR, Rev.
D, 6-79 Sh. 6R, Rev.
D, 6-79 Sh. 20R, Rev. B, 2-79 Sh. 11, Rev. C, 11-6-78 Sh. 12, Rev.
D, 2-5-79 Sh. 16, Rev. B, 11-2-78 c.
Three copies of the following Chemetron drawings for the containment spray pump area.
FL 26747-6 Sh. 1, Rev. C, 1-17-79 Sh. 2, Rev.
B, 12-14-78 Sh. 3, Rev.
B, 12-12-78 Sh.
4, Rev. A, 10-31-78 Sh.
7, Rev. A, 10-31-71 2.
SER Item 3.1.4 - Design Information for Water Suppression Systems a.
Three copies of the following Viking drawings for the diesel generator water curtains.
04-78161 FPl dated 5-11 '8 04-78161 FPSA dated 3-14-79 b.
Three copies of the following Viking and Sargent & Lundy drawings for the diesel-driven fire pump and day tank.
04-78161 FP2 dated 5-11-78 Viking B-699 Rev. H dated 9-22-78 S&L 22E-0-3228 Rev. A dated 12-28-78 S&L 22E-0-4840 FP59 Rev. A dated 12-28-78 S&L 3.
SER Item 3.1.5 - Design Information for the Electric Motor-Driven Fire Pump Controller Manufacturer - Square D Catalog #9001 KYC-6 UL Guide #NKCR File E-42259 The controller is UL listed as noted above.
The electric motor-driven fire pump can be started or stopped from the Control Room.
It can also be started or stopped locally at the fire pump location.
7 ft 1
\\b\\z
_s Cocunonwealth Edison NRC Docket Nos. 50-295/304 Dr. Harold R.
Denton: October 31, 1979 4.
SER Item 3.1.15 - resign Information for Protecting the Structural Ste'21 from Fire Damage A fire retardant coating, Pyrocrete 102, supplied by the Carboline Company has been applied to the steel columns and beams in the cable spreading rooms, auxiliary electric equipment rooms and the plenum for the diesel generator air intakes.
The coating, as applied, results in a three-hour fire rating for the covered materials.
Please forward this information to the NRC Fire Pro-tection Review Team for Zion Station.
Very truly yours; dY l NN
/
W. F. Naud ton Nuclear Licensing Adraini-trator Pressurized Water Reactors WFN:mae attachments 1 [t 7
Fire Protecticn Gas Ccncentratien Data Cable Spreading Areas - HAI4N 1301 Ccncentraticn by Volume Initial Discharge F.Itended Discharge Ficed Flocd Unit 1 L3S Time (Sec)
L3S Time (Sec )
Inner 5.59 720 16.1 489 703.3 Outer 5.41 24CO 18.2 1630 621.3 North Vault 5.01 204 15.4 70 330.0 South Vault 5.04 147 20.4 70 329.7 Unit 2 Inner 5.59 720 17.2 489 662.1 Outer 5.38 2400 21.8 1630 662.4 Ncrth Vault 5.04 147 20.8 70 284.9 Scuth Vault 5.01 204 20.8 70 346.5 Cable Streading.a as - CO-2 Ocncentratien 2 Minute Dis-by Volume Initial Discharge F.rtended Discharge Charge (305)
Flood Flood Req.
Calc.
Unit 1 LBS Time (Sec )
L3S Time (Sec )
LES LES Inner 50 2815
.50 700 600 1340 2200 Outer 50
% 08 150 4500 600 4619 7599 North Vault 50 965 135 500 600 419 347 South Vault 50 811 120 500 600 325 811 Unit 2 Inner 50 2873 160 7C0 6CO 1340 1950 Outer 50 9524 165 45CO 6CO 4619 6720 North Vault 50 S27 165 500 6CO 325 550 Scuth Vault 50 973 172 500 600 419 630 Remarks:
1.
HA 5 concentratien starts near end of initial discharge and is fa-tained for a ~#"#
um soak time of 10 cinutes.
2.
The extended discharge overlaps initial discharge and provides addi-ticnal flceding at a rate governed by the anticipated laakage for each area to -mntain a um 5". concentratien level for HA and 5C% for CC-2.
Centainment Spray ?ures A. 3 & C (Total Flced - CC-2)
Ccncentraticn by Vclu=e Discharge Flced rec
+4-o (see) 5 Unit 1 34 (In 1 Min. )
387 52
, 3g Unit 2 34 (In 1 L'in. )
594 56 j,j,i ;
- o i Ccntainment Spray Pu p C Diesel Oil Day Tank (55 Gal. )
-