ML20071F702

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Forwards Summary of Fire Loading to Satisfy Item 3.2.9 of Fire Protection SER
ML20071F702
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 11/01/1978
From: Herbein J
METROPOLITAN EDISON CO.
To: Reid R
Office of Nuclear Reactor Regulation
References
GQL-1791, NUDOCS 7811070101
Download: ML20071F702 (14)
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, METROPOLITAN EDISON COMPANY =:::1 r := arn w. n::.;c urz:,s:::ncn:v. ,.

POST OFFICE BOX 542 REA0 LNG, PENNSYLVANI A 19603 TELEPHONE 215 - 929 *.401 November 1, 1978

GOI 1791 Director of Nuclear Reactor Regulation Attn: R. *4. Reid, Chief Operating Reactors Branch No. h U. S. Nuclear Regulatory Co= mission Washington, D. C. 20555

Dear Sir:

Three Mile Island Nuclear.Stati~cn, Unit 1 (3fI-1)

Operating License No. DPR-50 i Docket No.50-289 /

. Fire Protecti T.o' l

~

l '

i Attached is a su m ry of the fire loading for DtI-1. Fire areas are identified as described in the D1I-l Fire Ha::ards Analysis. The second column of the table indicates the total fire loading nor= ally prgserit in each area. . The last two co4umns show the fire leading in BTU /ft and in pounds (vood equivalent)/ft" assuming a 55 gallon drum of oil or 1000 pounds of Class A combustibles were present in each area in addition to the leading normally present.

As can be seen frem the table, the fire barriers that will he provided upcn ec=pletion of the Fire Barrier Penetration Sealing Program can contain the additional loading as described ahoye, vith.the exception of the A Makeup Pu=p cubicle. The fire loading in that cubicle may be increased by 30 gallons of oil or 575 pounds of Class A combustibles before exceeding the barrier rating. However, the cubicle is normally kept free of all ,

transient =aterial and it is therefore felt that no additional modificaticas are necessary.

Based en the results of the study, Met-Ed feels that Iten 3.2 9 of the Fire Protection Safety 2 valuation Report has been adequately addressed.

Per October 31, 1978 telecon with Mr. G 3. 2 vet::ig of your staff and in accordance vith paragraph 2.c.(h) of the Facility Cperating License DPR-50, this letter is submitted cne da'y late due to an administrative error which <

I resulted in illegible copies of the table.

Sincerely, 781107eiol p4 3[ M g r

I

/ J. G. Herbein Vice President-Generatien 1

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AEAClOR #d1LDING 1/2 110UR1 , TOTAL FIRE LOADING PLUS AN ADDITipNAL TOTA. ILOURLY TRANSIENT PERMANENT TRANS!ENT LOAD FIRE TOTAL RATING RATING FIRE FIRE FIRE LOAD ( A 55 gal drum of oil or 1000 lbs o:

FIRE ' REQUIRED PROVIDED AREA LOADING WOOD Class A combus tibles) , j LOADING LOADING 2 BTU'S/FT2 Wood Equivalent

  • g BTU' S/17 BTU'S/FT2 EQUIVALE}iT 2 LBS/FT BTU'S /FT Lb2/FT 2 .  !

(Rounded Off)

.62 None - Limited - 6,205 *78 Reactor Building 4,925 Amount of Outside Secondary Con.bustibles Shield, North at FB-la Elevation 2 281' 6550 ft .

None - Limited - 4,920 *62

k. .ic t o r Building NOME Amount of  ;

mitsidu Secondary Combustables Combustibles

$hield, Southeast at are negligible '

Rb-lb Elevati<m 281' I/00 ft2 1.16 None - Limited - 14,220 1.78 9,300 2,060 7.2 30 kuactor hui! Jing T Amount of l outside Secondary Combustibles Shicid, Southwest at I' Rb-Ic Elevation 281' .

1700 ft2 2 16,813 2.19 None - Limited .. 18,350 2.29 17,500 670 Heactor Building Amount of.

Outside Secondary Con.bustibles Shield at RB-2

, Elev.at ion 308' f' 9850 ft2 2,594 .41 Nune - Limi t ed _ 4,100 ,$g 3,250 - 670 kcactor Building Amount of amtside Secondary Combustibles Shield at RB-3 .

Elevation M6' 2

9h50 it 4

~ " ' - -.- - w-N

- . , . . . . . . ~ . - .._

f .

. w . 1 6.1. ... . t. . t..e s i a j .

4 FIRE I.OADING SUPtMARY PERMANENT TOTAL HOURLY HOURLY TOTAL FIRE LOADING PLUS AN ADDITIONAL  :

FIRE TOTAL TRANSIENT '

FIRE FIRE LOAD RATING RATING TRANSIENT LOAD , l A REA FIRE FIRE i UOOD REQUIRED PROVIDED (A 55 gal. drum of oil or 1000 lbs, of LOADING LOADING LOADING '

2 BTU'S/FT2 BTU'S/FT2 EQUIVALEpT Class A combustibles) .

BTU'S/FT i (Rounded Off) LBS/IT 2 WoodEqujvalent '

BTU'S/FT IE2/FT 3,614 .45 1/2 3 12,890 1.61 Decay Heat kcuniva l 3.600 Pit A (Elev. 261')

900 ft2 1 t

3,350 3,352 .42 1/2 3 11,710 1.46 Ikcay lleat Run. ova l l Pit B (Elev. 261') ,

1000 fa2 n,

Il 2,700 1,260 1,430 .34 Hane - Limited - 3,900 .49 t' Heat Ext.hauser Vault II (Elevation 271') Amount of 1000 fa2 - Combustibles ,

ii l

Hale-tip and Purification }l Pumps A B, and C ll Cubicles (Elev. 281')  ;

210 ft2/ cubicle t.

A 58,500 - 58,410 7.31 l' I 80,000* 12.06 1

B 15,200 - 15,120 1.90 1 1 53,200 6.65 C 14,000 - 13,820 1.25 1 1 52,000 6.50 3,600 3,600 .45 None - Limited -

31,470 3.93 Valve C llery (Elev.ation 281' 295') Amount of 300 ft2 Coahustibles

  • 30 gal, of oli or 575 lbs. of .

class A combustibles i

nLX11.t AkY culLDING 2 /1 I'"' ' " " ' ' d h- g PERMANENT TOTAL 110URLY HOURLY TOTAL FIRE IDADING PLUS AN ADDITIONAL FI RE TOTAL TRANSIENT FIhE FIRE FIRE LOAD RATING RATING TRANSIENT LOAD A REA FIRE LOADING WOOD REQUIRED P ROVI DED (A 55 gal. drum of oil or 1000 lbs.

LOADING LOADING BTU *S/FT 2 BTU'S/FT2 BTU'S/FT2 EQUIVALEjlT of Class A cumbuktibles) ,

W (Rounded of f) LBS/FT 2 dEqgivalent 2

HTU'S/FT 1.B /FT None - l.imi t ed 52,450 6.56 Penetration Area 41,300 4,000 37,300 5.16 -

Amount of (Llevation 281') Combustibles 750 ft2

~

None - 1.imi t ed 21,100 2.64 Lcu.4inder of 20,500 3,855 16.245 2.56 -

Amount of

1. l ev at i on.,2 81' 14,m)O tt' Combustibles None - Limited 23,860 2.98 Dcmineralizers and Motor 22,000 666 21,700 2.75 -

Control Centers Amount of Contu s t ibles (1:le vat ion 305') ,

E 4 '>Ot) iL None - Limited 15,970 2.00 tecay lleat Hemoval and 9,000 2,500 6,472 1.13 -

Nuclear Service Closed Amount of Cvrie Cooling Pump Area Combustibles (Elevation 305') /

1200 ft2 None - Limi ted - 0=800 1.1 Gas becay Tanks NONE '

(Elev.atisn 305') Amount of 9',0 tt2 Combus t ibles 1,770 2.96 None - Limited - 24,630 3.08 Rcmainde r of 23,700 21,930 Llev.ition 305' Amount of Combustibles 90co g g 2 p.

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