ML20072T624
| ML20072T624 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 04/05/1983 |
| From: | Tramm T COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 6254N, NUDOCS 8304080246 | |
| Download: ML20072T624 (2) | |
Text
4 1',7 e ~
Commonwealth Edison C
one First National Plaz2, Chicago, liimois O
Addrtss Reply to: Post Offic) Box 767 x
Chicago. Illinois 60690 April.5, 1983 i
E Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation l
U.S. Nuclear Regulatory Commission Washington, DC 20555 l
Subject:
Byron Generating Station Units 1 and 2 i
Pre-Fire Plans NRC Docket:Nos. 50-454-and 50-455-4 Reference-(a):
March 8, 1983, letter from C. W.
4 I
Schroeder to H. R. Denton.
Dear Mr. Denton:
- l This is to. provide a revision to one of the Byron Station pre-fire plans which was provided in reference (a),
s Enclosed with this letter is a revised plan for the Fuel Handling Building containing specific information on the additional t
fire loading imposed by temporary timber supports associated with Unit 2 construction.
As noted in the Fire Protection Report, this temporary transient. fire loading does not necessitate additional i
fire detection or suppression systems.
It has been provided for, however, in the pre-fire plans.
Please direct any. questions you may have regarding this
-matter to this office.
One signed original and fifteen copies of. this letter and the enclosure are provided for your use.
Very truly-yours, 0 ^Id W,JsIs s
+^- T. R..Tramm.
-Nuclear-Licensing Administrator 1m
.cc:
J. G.;Keppler'
'6254N 830'4080246 830405
.PDR ADOCK 05000454 F
BYRON STATION PRE-FIRE PULNS
,r
' LOCATION: Fuel Handling Building, Elevation 426'-0" and New Fuel Unloading Area at Elevation 411'-0" FIRE ZONE:
12.1-0 (Detection Zone 38)
CSEP CONDITION: ~ Refer to BZP 320-1, " Fire Fighting", and BZP 200-A1, " Byron
-Emergency Action Levels" ENERCENCY LIGHTING: AC Essential Bus, DC Emergency Bus, One self-contained emergency light TYPE OF FIRE / FIRE LOAD: Oil, gasketing, grease, cable insulation--3,600 Btu /ft2 Also, temporary railway support timbers during Unit 2 construction (represents additional estimated 2
44,700 Btu /ft )
PERSONNEL HAZARL. a) Products of combustion b) Area above spent fuel pit may have dose rate > 60 mrem /hr Area above spent fuel cask storage area and decontamination area may have dose rate < 20 mrem /hr COMMUNICATIONS: Portable radios ; telephone (one extension); one sound-powered phone jack; PA (H-114, H-232)
FIRE EQUIPMENT: Detection:
UV Suppression System: None Hose Reels: Three: Nos. 170, 171, 59 Portable Extinguishers: 5 PLANT EQUIPMENT:
~
Safety-Related.
Radioactive BOP Fuel handling crane, aux.
Potentially radioactive bldg. HVAC ductwork due to pressure of spent fuel ACCESS: From the auxiliary building at V/18; From Elevation 401 of-the fuel handling building via stairways WDfTILATION: VA System SMOKE REMOVAL: VA System Use the'following method:
A.1.Open the fire dampers OVA 413Y and OVA 414Y A.2 Smoke will follow the designed flow path.
Smoke from this area will flow through the fuel handling. exhaust filter plenum and auxiliary building exhaust plant vent stack
-as shown in P&ID's referred above.
ADDITIONAL INFORMATION:. 'See FPR Figures:
2.3-19 2.3-22, 2 of 2 Refer to P&ID's: -M-95-1 M-95-2 M-95-3 MW95-12 M-9 5-14 =
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