ML20072M921

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Forwards Responses to Chemical Engineering Branch Fire Protection Section,Draft SER Open Review Items 17,20,22,24 & 28.W/12 Oversize Drawings.Aperture Cards Are Available in PDR
ML20072M921
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 07/12/1983
From: Bradley E
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Schwencer A
Office of Nuclear Reactor Regulation
Shared Package
ML20072M924 List:
References
NUDOCS 8307150132
Download: ML20072M921 (27)
v • d • e


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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 EDW ARD G. B AU ER. J R.

no esma AL couwsak EUGENE J. BR ADLEY AssociAve assun A6 coussak DON ALD BLANMEN RUDOLPH A. CHILLEMI E. C. KIR K H ALL T. H. M AMER CORN ELL PAUL AUERBACH Y

)

AssesvAny enman AL counsuk EDW ARD J. CULLEN, JR, THOM AS H. MILLER, JR.

IR ENE A. McMEN N A AssisvANT CoWNsEL Mr.

A.

Schwencer, Chief Docket Nos. 50-352 Licensing Branch No. 2 50-353 Division of Licensing U.

S.

Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Lime ric k Ge ne ra t ir.g Station, Units 162 Draft Safety Evaluation Report Open Review Items From the Fire Protection Section of NRC Chemical Engineering Branch

References:

(1)

Letter, A.

Schwencer to E.

G.

Bauer, Jr.,

Dated April 19, 1983 (2)

Meeting, Philadelphia Electric Company and NRC Fire Protection Section, May 18-19, 1983 File:

GOVT l-1 (NRC)

Dear Mr. Schwencer:

Transmitted herewith are responses to Fire Protection Section open review item numbers 17, 20, 22, 24 and 28, as transmitted by the reference (1) letter and further discussed at the reference (2) meeting.

Any changes to the FPER which are required to maintain consistency with the enclosed information will be made in September, 1983.

1 Sincerel e

(='

n ' *Je Eu ene Bradley Q

g, HDH/gra/99 bp 40 A@M Enclosures Copy to:

See Attached Service List 8307150132 830712 PDR ADOCK 05000352 E

PDR

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Y b

o cc: Judge Lawrence Brenner (w/o enclosure)

Judge Richard F. Cole (w/o enclosure)

Judge Peter A. Morris (w/o enclosure)

Troy B. Conner, Jr., Esq.

(w/o enclosure)

Ann P. Hodgdon (w/o enclosure)

Mr. Frank R. Romano (w/o enclosure)

Mr. Robert L. Anthony (w/o enclosure)

Mr. Marvin I. Lewis (w/o enclosure)

Judith A. Dorsey, Esq.

(w/o enclosure)

Charles W. Elliott, Esq.

(w/o enclosure)

Jacqueline I. Ruttenberg (w/o enclosure)

Thomas Y. Au, Esq.

(w/o enclosure)

Mr. Thomas Gerusky (w/o enclosure)

Director, Pennsylvania Emergency Management Agency (w/o enclosure)

Mr. Steven P. Hershey (w/o enclosure)

Donald S. Bronstein. Esq.

(w/o enclosure)

Mr. Joseph H. White, III (w/o enclosure)

David Wersan, Esq.

(w/o enclosure)

Robert J. Sugarman, Esq.

(w/o enclosure)

Martha W. Bush, Esq.

(w/o enclosure)

Spence W. Perry, Esq.

(w/o enclosure)

Atomic Safety and Licensing Appeal Board (w/o enclosure)

Atomic Safety and Licensing Board Panel (w/o enclosure)

Docket and Service Section (w/o enclosure)

.\\

b NRC Open Item #17:

Fire Det*$ction t

We cannot verify, from the applicant's fire protection report, that detection is provided for adjacent areas which present a hazard to safety related equipment (e.g.,

the refueling floor

' area of the reactor enclosure and the decontamination areas.)

We will require the applicant to verify that detection is provided for all areas that present a hazard to safety related equipment in, accordance with our guidelines in Section C.6.a of BTP CMEB 9.5-1.

The fire and smoke detection system is in compliance with NFPA 72A.

The system does not comply with the requirements of NFPA 72D in the following areas:

l.

No device is provided for permanently recording incoming signals with the date and ti.me of receipt.

2.

Operation and supervision of the system is not the primary function of the operators.

3.

In lieu of complete reliance on NFPA 72E, smoke and fire detector locations are established by a qualified fire protection engineer.

This does not meet our guidelines in Section C.6.a of BTP CMEB 9.5-1.

We will require the applicant to provide a system which complies with NFPA 72D for a Class A system, with detectors installed in accordance with NFPA 72.E.

CMEB Position 1)

Detection systems should be provided for all areas that contain or present a fire exposure to safety-related equipme nt.

2)

Fire detection systems should comply with the requirements of Class A systems as defined in NFPA 72D, " Standard for the Installation, Maintenance, and Use of Proprietary Protective Signaling Systems," and Class 1 circuits as defined in.NFPA 70, " National Electrical Code."

3)

Fire detectors should be selected and installed in accordance with NFPA 72E, " Automatic Fire Detectors. "

LGS Response Fire detection capability is provided for all areas containing combustible materials that present a hazard, to equipment or i

-70(b)/13

-17/1-T geA *

't cabling that is neededoor achieving and maintaining sa(o Fire detection is not provided for the refueling shutdown.

floor area (fire sone 78A) of the shower and dressing areas (fire zones 78B and 78C) since the combustible loading in these areas is sero and none of the areas contain safe Further discussion of fire shutdown equipment or cabling.

are 78 is provided in Rection 5.4.27 of the FPER.

The fire and smoke detection syst, ems are part Class A and part Class R as defined in the 1975 edition of NFPA 72D./

FPER Section 2.11 has been revised to provide ad/ditions The Limerick design meets the guidelines of information.

Section C.6.a of BTP CMEB 9.5-1 because the fire and smoke detection circuits are supervised and any circuit break or Administrative procedures ground fault will be alarmed.

will require the investigation of all fire alarms andThe restoration of open or faulted detection circuits.

three exceptions noted in Section 2.11 are justified by the following considerations:

The logging of fire events by a device for permanently 1.

recording incoming signals is not required as the standard operating procedures will require the operator on duty in the main Control Room to enter the'date and time of the receipt of an alarm from the fire detection system or initiation of any fire suppression system in the plant log book.

The plant operator's duties include monitoring and i

J 2.

supervision of the fire protection system.

The location of early warning fire and smoke detectors 3.

was determined and performed under the direction of a The location of registered fire protection engineer.

fire and smoke detectors complies -with the guidance of l

NFPA 72E except for the location of ionization detectors in the table below which are located in accordance with subsections 4-3.1 and 4-3.1.1.

These sub-NFPA 72E, sections allow detector location to be determined based on engineering judgement considering ceiling shape, l

ceiling surf aces, ceiling height, configuration of 4

contents, combustible characteristics and ventilation.

Where the intent is to protect from a specific hazard, I

the detectors are installed closer to the hazard in a position where the detector will readily intercept the products of combustion.

locations in areas where composite construction is I

Atused, the diffusion of io6ized particles throughout the compartment volume produced during the incipient stage of the fire will negate the effect of beam depth and result in acceptable levels of detection coverage.

-17/2-P-70(b)/13

..~n

The table below delineates hose areas of the plant where detectors were located based on the considerations given in NFPA-72E subsections 4-3.1 and 4-3.1.1.

Fire Area Bldo.

Eleration Description

~

27 Control 304'-0"

, Control Structure Fan Room 619 39 Reactor 177'-0'"

Sump Room 115 and Passageway 118 41 Reactor 2018-0" RECW Equipment Area 207 42A Reactor 201'-0" Safeguard System Access Area 200 43 Reactor 217'-0" Safeguard System Isolation Valve Area 309 45A Reactor 253'-0" CRD. Hydraulic Equip. Area 402 45B Reactor 253'-0" Neutron Monitoring System Area 406 45C Reactor 253'-0" CRD Repair Room 403 47A Reactor 283'-0" Corridor 506 and General Equip.

Area 500 48A Reactor 313'-0" Laydown Areas 601 and 602, Corridor and RERS Fan Area 605 48B Reactor 313'-0" RWCU Holding Pump Compartment 48C Reactor 313'-0" RWCU Holding Pump Compartment References _

1.

Branch Technical Positions ASB 9.5-1, Appendix A, Section F.13 & P.15.

I 2

Branch Technical Position CMER 9.5-1, Section C.6. A.

(3erHT6L. %wiiwa C.-2Co)

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._______,__________,___.,_______.__,,-n_,.______

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1 NRC Open Item #20:

Branch Connections for Standoionn The sprinkler systems and m nual hose station standpipe con-nections to the looped interior fire protection headers are e

I arranged and valved such that in many cases, branch con-nections to the headers are~provided with approved shutoff l

valves so that groups of sprinkler systems and/or manual hose stations can be isolated without interrupting the supply to other sprinkler systems and manual hose connected to the same header.

I l

This does not meet our guidelines in Section C.6.c(1) of BTP l

CMEB 9.5-1 because a single break i.n the water supply piping

~

could impair both the primary and backup fire suppression systems.

CMEB Position j

i We will require the applicant to modify the design to prevent l

a single break or malfunction from incapacitating multiple l

automatic protection systems and standpipes hose systems.

t LGS Response The standpipes supplying the sprinkler system and the manual hose station were designed to NFPA piping requirements, where the materials and construction are the same as for Power j

Piping Code, ANSI B31.1.

The standpipes were seismically l

analyzed for safe shutdown earthquake (SSE) loads to ensure l

piping integrity, and are considered an extension of the i

yard main system. Each sprinkler and manual hose station j

supplied from the main standpipe are equipped with an j

approved shutoff valve and waterflow alarm.

Safety related j

equipment in the vicinity of the sprinkler water fire pro-l tection is either protected or will not be damaged by l

sprinkler water discharge.

References i

l 1.

Branch Technical Position ASB, Appendix A, 9.5-1, Section l

E.2.b & E.3 2.

Branch Technical Position CMEB 9.5-1, Section C.6.c.1 A field survey has shown that in the unlikely event a standpipe was I to break and cause a loss of sprinkler systens and their associated Y

backup hose stations, all sprinklered areas could be provided with an I

effective hose stream fran a hose staticm attached to the closest

( standpipe to the affected area.

P-70(b)/14

-20/1-l i

l

I s

e NRC Open Item 922:

3" Diameter Standpipes 3-inch piping is used to serve up to two hose stations and of BTP does not meet NRC guidelines in Section C.6.c(4)

CMEB 9. 5-1.

CMEB Position We will require the applicant to either provide 4" diameter the fire protection piping or verify by calculation that system can provide the flow and pressures required in NFPAfor t 14of two hose stations simultaneously with the largest water demand flowing from any automatic suppression systems in the vicinity of the hose stations.

LGS Response Standpipes serving hose stations and sprinkler systems are capable of delivering 250 gpm of which 100 gpm is supplied to the hose stations at not less than 65 psig at the highest The hose stations while the sprinkler system is operating.

largest single sprinkler demand in the Reactor Building is 140 gpm.

The design and installation of the fire protection standpipes.

and hose stations is in accordance with NFPA-14.

References Branch Technical Position ASB 9.5-1, Appendix A, Section 1.

E.3.d Branch Technical Position CMEB 9.5-1, Section C.6.c.4 2.

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10 Pr /0 C y. c. o c 2 /l

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IDc17.2)"

Q = / O f:. : n 13 10

/eny / = 2 GG tt F/. (rrov' 3 I **

7. I i.

)

Eq u ivale n /

h to 16 17 k* S S Y lk 2.5

$. 5$ Y $ $ b 2 I.C l7

G. 0 6 /.f 1D lF r, f

14 c 'D M7 x 12.gi gh40yteco22 18 19 20 7' ' 2 C & 9 x o. c o t 7 4.54 721

=-

21 frorriO?

m 6 ".111.

IL = f Ib '

Q ~ C Th Gp "

[0 Yrh e

.61 : C 33 23 s

E uivo/cn/ /eng h I 2 3 2.. G r/.

( rr o n,

s,.

7.

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~ r/

2s b:

r-4',

27 f.ef O '

y, d. l.$

0Lk D Y, (0 kle k 28 29

?'Eb?.b YO.0l2

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Y 30 31 32 33 34

, 35 SFP-23768 Rev. (6/76) 8E D-69 (G/ 76)

L 1

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R EY. NO.

CALC. NO.

I ~ ' '-' -

CHECKED DATE

[*

DATE f

ORIGINATOR 2 d' S I y

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72C SUBJECT SHEET NO-1

_6_7slEn.'

PR - 12.

2 3

~

F~rc en G

fo H'

Pi

=4"S.,

1: = 4. 0 4 5,

9 r-i 75 t,.

St2C pc 5

Eg u iva le n l

/e rry h.l. :- 15 2 F/

(fro rri sli!.

7. I C j

,s 7

C E ' # "

4. 52 x 17l4 7?. 4 f = 4 52 y

= 0. C 17 Psi /r/

  • 8 12 0 ^ & S y g. o cd'i ?

7022Ay.CA'Jz g

10

> /hI Y d. O / 7 ~ 2. 5 2 F.r. r,_

11 12 fron, (II,' la b Tijo c

.c ic e - 4 ".C., c = 4. 0 : C ', 4

-17:

13 11 h/ = E Fl

( Fr orri.s /i /.

7. I c

')

? ulva /c n! le ng to E

16 17

'f. b' h 't 4 75 4.5 E y R S b l ii.

/<

.- O. c., c..

/., # ' '/

7 _ / E c " y. 4.c26.a7 70 2.2.4 x 5 5.12. C

.e 4

18 19 20 T-3 2 7 0,o c!.i <= 0.L 2 Fet.

21 r

22 fr o rr; J ~ f c-Q2 Pip e 4 r 2 r *.3 S ID=5.34h Q*.r.

i 2:

7Y 7=

4?

51 c ' E li: c..>.

s u

Tc c ( Flo w a/ 9 0 ' ') ~~

l y I7 l7

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u

= 6, 2 5 T,s i, r t.

e

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3?

Su m m a ry : 0. 0 4 + 0.4C

  • 6. 4 2 + 0. 2 5+ 4. 54* 2. 7 9 4 2. 5M + 0. 62 + 2 7.L ' ~5 9. I 7~

as SF P-2 2768 Rev. (6/76)

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l I-/ ~db bNb DATE CHECKED DATE ORIGIN ATOR IO 3I PROJECT JOB NO.

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3 rei c /i o n

/cc s e s - 5 9.1 rs t a

I 5

co o lo'n g Tc w er Eusm

= 2 6 2. 75 '

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= 2 0 4. <f 7 '

e

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9 10

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11 12 h 13 19 v o i/a 6 le h ea d fre,rn { fo h - 25. ib - 59. /

= - J 5 '3 5 P.s i.

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2 8 5 rl'.

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17 18

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'9

20 I; 21 22 23 24 25

, 26

, 27

' 28

' 29 30 31 37 33 34 135 I36 SFP.21768 Rev. (6/76)

E D.69 (G/76)

CALCULATION SHEET i

'2b R EV. NO.

CA LC. NO.

b*

~d3 b

DATE CHECKED DATE ORIGINATOR 2O5I PROJECT JOB NO.

,7' 5 a SUBJECT SHEET NO-1 Wea c /o r E / d. E*y u ijmc ni Coi..p. n !/ a s.

jy s /e m a

y 3

o Flo w

/20

=

s fire Hyc/ran/ f/c W.

750

=

6 Two //c.s e R e e /s F/c w 200

=

7 To f a /

Flo w 1 J 3 0 Gja rr:.

8 g

9 6 u cllc n 7/p c }.^tt.!.y

/ 0,9 S * [ P = 0. 5 lQ

~~~ ' O. *

^ Y ~*.? E !

/

2 9 i

~

+

10 C. O 2 72f it

=

12

  • 0 5 'Y J E d 4E
  • l

lE ' o'3 s-.

?if f rt } frott*?

'3 buc ICn J

Q = // 5 a {?n..

'O 1G 7,,} g op / (y;)'-

lg y, p h l-5 ) 7 ff 4, fy (, m g, ), l, f, l g

)

16 '

f s

a 17

f. M~

f: =

f,b] y )lSO s

4,52gg4gg3l 18 e.

' =

- = 0. 0 0 6 9 2 7.c y. /f/

/2 c"" x 13.2E " '

702 2.4 y 29l 2 7/

20 P = 3 0 7 y 6. 0 00 e 2 = 0. 3 P.s i.

aa 2 fo D'

Pipe s i z e = 12 ".S.

ir : ::"

23 buchari Pipi n o frorn Q =1/30 Gy m 2"

2s f fro m

.5 li l.

J. i n

)

Eg uivo /e n f }eng u/ = 173 l'f.

l 26 27

4. 5 2 x lt3 0. E~r 4.52 x 444 231 t

28

- 0. 00 /G F.s tlff 0

9 * / 2 o  % i a * * "

70 2 2.4 x 1Ec 14l 2e l*

13' P = 173 x 0.colc = 0.22 P.sa.

l l32 l33 l

l34

35 N

SFD.20768 pov. (6/76) 30 69 (G/76)

L

A CALCULATION SHEET E

N'2 O

S' CAL.C. NO.

REV.h0.

S'! 'db J. 6 B R.D Y OATE CHECKED

. DATE ORIGINATOR O!

PROJECT JOB NO.

7* 8 b' SUBJECT SHEET P/O.

1 g 6 [ C c/i 2

3 F r o r:i 0 l o & P Q a e 12 "C., m ' 12 , G = l i l 6

size

=

s 5

6

[

u N V Q.lC.* :.l^

f f n j l7 h * / O S f l. (Yr 7: >.G!!

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=

r..

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/e n o h l.

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7. !.6

)

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f)

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-y 12.21

3540f.196C22 I 4 D

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21 r"r o m f fo Pip e s i : e - C

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q 3 2 c Gr, m.

23 9 a i va le n /

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f fro rn s hl.

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J. 6ARrY I~

~83 CHECKED DATE DATE ORIGINATOR b

PROJECT JOB NO.

7' b C SUBJECT SHEET NO.

1 49 s } e rn 2

3 2 2 0

4.52 x 5e 2 3 2

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e 12 0,' g 5. C. OGE

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t= = 4 02C '. q r / 2 C Gy >.-

e Frcen lo Io Go

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  • Ci b o w Cx 10

=-

n lx 5

12 4b' Elb o w g

=-

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=

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Valve

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=

C/

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'6 17, 120 4.52

  • IA2C2

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=

12 0,, gg y 4. 024 'g7 70 2 2.4 x 8 2 2. 5 4

20

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=

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O k & r' E G 3 4 ri 55 E. N '

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30 Sfafic h ead v

31 32

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33 34 35 36 SFP-23768 Rev. (6/76)

E D-69 (C/76)

'r$

CALCULATION SHEET

' E E' O

l CALC. NO.

R EV. NO.

R S~

b CHECKED DATE ORIGINATOR DATE O3/'

PROJECT JOB NO.

7' SUBJECT SHEET NO-1

_43 s /-e en 2

3 hier 0 =

A va s'la h /e li e a el from le 4

5 6

$2,77 - @,28= k2,0[ P6 fnraa

~

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= 2 2 k Ff.

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9

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12

=

13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 SFi*-2176B Rev. (6/76)

E D-69 (5/76)

I CALCULATION SHEET O

CA LC. NO.

~

~

REV.NO.

ORIGINATOR bMND DATE

~O

~

CHECKED DATE e

PROJECT Slbe'UICN GESI STATIO55 USIE T l 5

$ 0 5'l JOB NO.

r/R[ PROT. f'lFING PRCCS L C C L E &. SHEET NO.

l. I en.

SUBJECT 1

S 96 /em. PR-l Tu r6]nc 2s id. Loo c/ ten /er f A c c e s r.P a z, 9

3 1997

( Frc rei su bmr lla l M 4? l )

c flo w

='

s Fs're H cdro ni flou -

75C

{ 70 PS! )

3 s

Two Hos e Reels Flow =

200 7

To la / Flo s J

=2947 GPN.

8 9

S u c lio n Pipe En /rcy lo t s : AF-O.Efi5.2G)6.85 1

A C '1 D DX

47i.

^~~

g--

g g y

10

0. / 6 F.s t 11

=

12

'3 buc ht O n ?tf I n } frC fTi bc

?'l o t.flEt lk l EJ l 5. 2 5 i

14

{@ f 7 g m

'G 90* E*/h e w 2* 23. S

-17

=

7<c ( now of of )

t y 71 7/

r 17 jg9 p,

(

jm* " g a

/

Tolol

- 507 fi.

19

^F 4 ~L 2 y 2947

4. 5 2 3 2 G2 0 313.6 _ o, o c58 Ps:// r?-

A2 =

2,

/

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/=

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!'=

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gy jQ 27 G(C f f )., r. jg 72

=

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=

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G G

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=

/.fr 33 4.5212947 4.52 x 2tec SI3.5 a0094 Psi /:l'

.pn

=

l 2 0 Ux /2 70 22.4 A /26, J4)

A'E l 3"

35 P = }73 x 0.0094c l.63 Psi SFP.20768 Rev. (6/76)

E D 69 (C/76) k_

j

'I cal.CUl.ATION SHEET M-22 0

CALC. NO.

a gy, No, J.bANb

  • 'b2~b ORIGINATOR DATE CHECKED DATE l

PROJECTl/MERIC/t GEN. S TATioN () HIT I <$ 2.

JOB No.

2 0.3 l l* lN SUBJECT fir E 'PR OT. 'PtPtN G T'E'E S S. L o S SE G '

SHEET NO.

1 29 s he rn.

PR-I 2

3 fro m la Pipe s t z e 12 ",* lD =/2" Q = 2 ? 4 7 Gy tr.

4 5

12 l Je /N 6

SO' Elb o w

=

=

7 7~e e ( Flo w ol 90 * ) =

l/ CO 60' 6'

a G o le Value

//

C

=

=-

22'

'Ps'p e 9

=

To lo l IOC F/.

to

=

11 1.25 f = 4.52 x 29 4 7 4 52 y 262 0313.6 12

= 0. 6 0 94 'Fs i Fi.

=

i.p~.-

  1. ' g

'3

/20 x 12 7022.=1 A /80141 14

's P = JOC x 0 00 94 = I. 00 Ps i.

It Fr o m lo Fi v e S z e = 12 " c l.,

I.D = / 2. 2. I

~

j

'8 c

2 9 4 7 Gp u.

c

'S 90* E /h o w 3 x 27x'.32

/67

=

c 2

46* E/6o w 8x 13 x l. 2 2 -

137

=

Te e ( Flo w of 30* ) = c x 60 x l. 3 2 4 75~

+

& c. le va/ve

/ 5 x < 3e t..s 2

ll9 7'ipe Soce 23

=

2<

To t a l

.5 9 0 7 f/.

2s

_ 4.5 2 x 2 9 4 7

4 5 2 X 2C203l5.5 ze g,gg p.

14 0 #'x 12, 21 #E 9 340 x 1960 2 2 27 28 29 P = 3 9 0 7 x o. o c c5 # 2 5~. 4 0 Psi 30 31 32 33 34 35 36 SFP 20768 Rev. (6/76)

ED 69 (G/76) h4+

4.m..

</90 CALCULATION SHEET i

'QSe p)

CA LC. NO.

REV. NO.

J. 6sR DV 5~

~

DATE CHECKED DATE ORIGINATOR O-*

PROJECT JOB NO.

SUBJECT SHEET NO-1

-3 s l e ni PR - /I.

S 2

3

< 12 ".S.,

J.D ' / 2 ",

q - //E 6.v, a

7'ro rn lo Pi,c e

.s ? : t 7

5

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f.' O U i All.

l. lb 6

7 f, - - 4. E 2 y l l S G

4. 5 2 Y A b9 h C.5s e

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10 P

lO 6 A

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11 n

f~rctra & fc &

Pear

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I D ' 12. 21 ", Q ' ll5 0 Cf1:

~

'3 j

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1. 3 2 lo ?

=

=

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=2x l3 x /. 3 2 -

34

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$y (O y,

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8 Ca /c Va/re

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x /. 22 7/

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=

To la /

2 C C 9 F~/.

=

21

// 5 C ' S~f' 4.5 2 x 459 565. 6

/

f = 4. 52 x 22

0. 00 ll P s i /; r

=

/40 '"X 12. 2 / 4'd 7 9 540 x /9(o 2 2

/

23 24 T= 2 C[9 x 0. Col / = 2.S4 Pci.

2s 26 f

Ic G Pth e S.I c = d".DI.,

ID = C.lE ", G = A 0 0 5, -.

27 F*r o n o 2s 45

  • El b o '.J 2x 2x 1.32
21. 12 29

=

=

30 7~e e (I'/c w o I S C ' )

=

l 4 35 xJ,52 44.20 1 31 Volve

Iy 4 x 1. 32

E. 2L i c o. ct y;p e 32 33 Tolal

=232.C FI l

34

35 36 SFP-22768 Rev. (6/76) y D 69 (G/73)

L.

CALCULATION SHEET M-22 o

CA LC. NO.

REv.NO, NNb 6 * /b E b DATE CHECKED DATE ORIGIN ATOR obi PROJECT JOB NO.

7* I C SUBJECT SHEET NO-1

_ S y.s / c m PR - il.

2 3

4. 5 2 x 4 0 0 N
4. 52 y G 5 t h A. 5 = 0. 0 0 4:.

=

> 1s o : r r.

o

.p =

/4 0 "~x C !E *

  • EG4 D
  • GC 4 7. 4 s

6

  • E E*$N 0'ODk$* l.05 ?hl 7

8 CC~ $.$.,

ID ~ [. OSS "

A l' ' Nj' '

9 fr o r? )

lC Pafi'.C 10 2 0

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=

=

u C A c c h vn /v e 40

/ x 40

=

=

12 b$

13 Y/ m (

=

Tola/

15 2. n.

s n

15 p _ 4 52 x 4 x '*

= 0. c o s E T..ln.

d E' E Y-CSI54 5

,a

'I 70 2 ?. '$

tT5 0 Y 17 f 2C '

y.$.Q((

V 18 19

?c f f _*? % 0,CQ$5c O, @ @

~/~'3 /.

20 2'

F*ro er a lo Pip e s o z e - 4 ".s.,

J.D = 4. D 2 C 9 = 2 G G Gp tri.

22 23 Ya ! L C l

'l b*

.3 E

P ip t

=

21 2 F/.

2s Tolaf

=

2s

!NC 4.52 y 200

4. 5 7. y / 2 O C L' 27

= 0. 6 s,o_. 7 a t s y;

=

=

  1. U I 8 0 U. y.4.026 70 2 2.4 x. 8 2 2. 5 28 29 3o F=

8 x D. o/ 5

  • C. /O P.c /.

31 32 33 34 35 36 SFP 227G8 Rev. (6/76)

ED 69 (5/76)

SEE l'

l APERTURE l

CARDS I

{

APERTURE CARD N0f

~*

i AVAILIBILITY CF HOLD v

NUMBERS OF PAGES.

F

./

nf;r.n open I t enn WC2(2,4 "Tonir.ntion amnke detectn'rn have boon installod in thb control

(

room, but not inside the individual cabinets and consolos wathis.

the control room.

This does not moet our guidelinec in Section C.7.b of BTP CMEn 9.5-1.

We require the applicant to provide cabinet detectors in accordance with Soction C.7.b of DTP CMen 9.5-1."

BTP CMEB 9.5-1, Section C.7.b:

C.7.b.

Control Room Complex Smoke detectors should be provided,in the control room, cebinets, and consoles.

If redundant safe shutdown equipment is located in the same control room cabinet or console, additional fire protection measuren should be provided. Alarm and local indiention should be provided in the control room.

14s Response:

The provision of smoke detoctors in the Control Room cabinets is.

/(,

not needed to provide adequato protection of redundant systems from the effects of internal panel fires for.the following reasons:

1.

Because the panels are closed except when personnel are performing interior panel maintenance, an undetected exposare fire originating in the panel is not a credible event.

2.

The design basis firo for. control room panels is an electrical.

failure-inducsd ignition of panel internal wiring.

Tho effects of electrical failures of control panel wirjeg and components was thoroughly investigated by PECO during our separation test program..It was shown by test that the separation criteria.used in the LOS panels will prevent the effects of any electrical failure from propagating to a redundant division of wiring. This was proven by demonstrating and analysing worst case effects of electrical failures on the types of wires used in the control panels.

All wire types are qualified to the IEEE 383 flame test requirements.

It is our position that through the use of the panel ipternal wiring separation criteria, an electrical fire in any control panel will not result in the loss of safe shutdown capability as only one ' division of one system would be affecte'd.

3.

The PECO test program demonstrated that prior to the ignition of any wire, copious quantities of smoke were first generated.

This smoke has an acrid odor.

A single six foot conductor generated enough smoke to completely fill a Ig4 x 104 ft.

Prom the tost program it is evident that this failure room.

mode will generate enough smoke to be detected by the ceiling ionisation detectors in the room as well as an odor that will be detected by the operator. We there' fore believe that no

(

further enhancement of plant safety or safe shutdown capability will be achieved by adding smoke detectors in the control cabinets.

f QNf

B.

Paoom er ahnw de.W.wi witt be revemo e A 4ae.e e,< a 6 w M ou e.abia m en.r=

i.,u tive op w n o-io m f.c os.r, L ;,i m 2, too.

% tc, r <. b

,;.u.

n e

References PECO Test Report 848503, dated September 3, 1982.

Drawinas Hone a

0 9

9 O

e t

=

e a

9 0

8 e

w I

  • g.

e, 0

e e

e 0

e t

e 6

%'.N *

/

NRC (PEN ITEM # 242 COMPARISON DBLE,

?

00MELDIICE ON LDEitICK NEDO 10446-A FIRE PflDIBCrION REQUIREBENIS

^

Iles,, No

. or -

~==iudert 1*=ik of Camp %

r-

. M inn h+irei

~3es Field unika==t confinns N 6.2.2.1 ne mystension armie==t in thiis plart consist of IEED commitment.

piping and crevia= in the finne==r+irms widch allous the ----

A to be supplied at the piping ir*=rf=ce-Dis is the snee as BIEt16 Figmte 3-9.

l 1

l Errata ans nam-wn. m.1 of Jime 1978 l

lies Field==1h&= cor#4== the ne TA: eer in==%s are made of 3/16 in:ta thir* s5 eel ~

3.3.1 e

sulco e--it==+.

plate welded to V8 inda steel corner angles.

Field unika==i cr=di== the

~ Des d

Bach T/C is divided into fiour boys.

~

i

. Ems When respired for separatien.

, Swing barriers are used between Boys A and B and e

between Boys C and D to proride better are

= fior 1

wiring.

k Perew+= cf 9J- " *r de metvwn are at the See mangonse to IIIC Open e

top of endi =-instion ruhinet which <=*=ia

?-

Item #28.

t res= dent so5ety cahla divisions to sense==rd=

- i in any boy.

^

N.'

- 1 Hase deter +r== proride an alana siqpel for Wer!

-ale-See response to sgIC open Itmo 428.

a fire within the ter-tr=*iewi cabinet.

De m1=rm siqpal...is to be conner +=d to the main.

Des Desigt is lar==a1=te at this time but will cor#rwm to m

control race fire 7-A-3 *v. ans=M=*nr panel.

IEIDO czandtzest.

" 6**1tmed) 4 n

prilaos the ruhigets are inr= tad in a "messedfarea" N/A Mot man 14,=hla.

...where local almv= is sufficient.

. ~17-P-62(a)/4

.

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