ML18047A425

From kanterella
Jump to navigation Jump to search
Forwards Addl Info Re Associated Circuits in Fire Areas 1-4, SW Penetration Room & Response to Section IV.1 of Draft SER, in Response to NRC .Request for Exemption from Requirement to Install Fixed Fire Suppression Sys Encl
ML18047A425
Person / Time
Site: Palisades 
Issue date: 07/01/1982
From: Vandewalle D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
NUDOCS 8207090059
Download: ML18047A425 (54)
v • d • e


Text

..,

David J VandeWalle consumers Power company Nuclear Licensing Administrator General Offices: 1945 West Parnall Road, Jackson, Ml 49201 * (517) 788-1636 July 1, 1982 Dennis M Crutchfield, Chief Operating Reactors Branch No 5 Nuclear Reactor Regulation US Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 -

LICENSE DPR PALISADES PLANT - FIRE PROTECTION By letter dated November 24, 1980 the NRC transmitted a revised Section 50.48 and a new Appendix R to 10 CFR 50 regarding Fire Protection features of nuclear power plants.

The new 10 CFR 50.48 defines specific actions to be taken by all licensees and involves a number of specific design requirements as detailed in Appendix R.

For the Palisades Plant, the portions of Appendix R which thereby became applicable are Sections III.G, Fire Protection of Safe Shutdown Capability; III.J, Emergency Lighting; and III.O, Oil Collection System for Reactor Coolant Pump. of the November 24, 1980 letter also defines the Palisades Plant areas for which the Section III.G. requirements are to be addressed, and invoke.s the performance goals for Safe Shutdown Capability as delineated in Section III.L.

Consumers Power Company letter dated March 19, 1981 provided our plans and schedules for achieving compliance with the applicable sections of Appendix R.

Also included was a design description for NRC approval of modifications necessary to satisfy Section III.G.3.

NRC Generic Letter 81-12 dated February 20, 1981 requested additional detailed information to facilitate the NRC's evaluation of the fire protection program at the Palisades Plant.

Because of the extensive scope of the information requested in Generic Letter 81-12, some of the requested information could not be included in our March 19, 1981 submittal and was subsequently submitted on May 19, 1981, which met the NRC's prescribed schedule.

/JooL

..s.,/vo

DMCrutchfield, Chief Palisades Plant Fire Protection July 1, 1982 The requirements of Section III.J, Emergency Lighting and Section III.n, Oil Collection System for Reactor Coolant Pump of Appendix R have been completed as committed to in Consumers Power Company letter dated March 19, 1981.

The only open item of Appendix R for the Palisades Plant is III.G, Fire Protection of Safe Shutdown Capability.

NRC letter dated April 7, 1982 and entitled "Fire Protection Rule -

10 CFR 50.48(c) (5) - Alternative Safe Shutdown - Section III.G.3 of Appendix R to 10 CFR 50 Palisades Plant" requested Consumers Power Company to provide a complete response to items pertaining to associated circuits indicated in Enclosure 1 to that letter within 60 days of receipt.

By our letter dated June 10, 1982, we requested an extension of time until July 1, 1982 in order that we could provide a substantially complete submittal.

NRC letter dated April 7, 1982 is identical to the information requested in Generic Letter 81-12 for associated circuits.

However, the April 7, 1982 NRC letter provided a clarification of Generic Letter 81-12.

In addition, further clarification of the definition of associated circuits was provided.

These clarifications have brought to our attention that the information Consumers Power Company provided in Attachment 2 of our May 19, 1981 letter in regards to associated circuits was incorrect and 2

thus an incomplete response.

Therefore, this submittal supersedes Consumers Power Company's responses addressing associated circuits in our letter of May 19, 1981.

The approach Consumers Power Company used for determining the interaction of associated circuits with shutdown systems is the "Fire Area Approach" which was outlined in the April 7, 1982 NRC letter.

Attachment A of this letter provides an analysis of associated circuits related to systems used for cold shutdown in the event of a fire in the following fire areas:

control room, cable spreading room, engineered safeguards panel room, and the corridor between the charging pump room and switchgear room 1-C-(hereinafter referred to as Areas 1-4). Attachment B provides an analysis of associated circuits related to systems used for hot and cold shutdown in the event of a fire in the auxiliary shutdown control panel area

( S. W. Penetration Room).

Our review of associated circuits in fire.Areas 1-4 and the S.W. Penetration Room did identify a number of potential associated circuits.

The methods by which Consumers Power Company proposes to protect the capability to safely shutdown from fire induced failures of such circuits are identified in Attachments A and B.

The methods proposed are consistent with the guidelines provided in Section B of Enclosure 2 to the April 7, 1982 NRC letter and with the Staff's positions and perspectives as reflected* in the Nuclear Utility Fire Protection Group's letter of"March 16, 1982 to Richard H Vollmer of the NRC.

DMCrutchfield, Chief Palisades Plant Fire Protection July 1, 1982 The associated circuit analysis represents Consumers Power Company's best effort to submit as complete a submittal as possible under the time frame given in the April 7, 1982 NRC letter.

Due to the extreme number of circuits to be checked, Consumers Power Company is continuing the verification of information set forth in Attachments A and B.

If the verification process uncovers needed additions or corrections, they will be submitted in a timely manner.

3 Attachment C is our response to Section IV.l of the draft safety evaluation report included in the NRC letter dated April 7, 1982.

The NRC is request-ing in Section IV.l that Consumers Power Company provide additional instrumentation which will be available in the event of a fire in either of the Areas 1-4.

The last attachment (D) provides an exemption request for the requirement of installing a fixed fire suppression system in the control room.

fJcw/~* ZfwJtML-David J VandeWalle Nuclear Licensing Administrator CC Administrator, Region III, USNRC NRC Resident Inspector - Palisades ATTACHMENTS

ATTACHMENT A Consumers Power Company Palisades Plant ASSOCIATED CIRCUITS FIRE IN AREAS 1-4 July 1, 1982 34 Pages f

  • ASSOCIATED CIRCUITS FIRE IN AREAS 1-4 ATTACHMENT A The following sections provide Consumers Power Company's responses to, Item 1 of NRC letter dated April 7, 1982.

As stated previously, the fire area approach, as outlined in the NRC letter of April 7, 1982, was used for the analysis and the sections which follow are formatted accordingly.

la.

Provide a table that lists all the power cables in Fire Areas i-4 that connect to the same power supply as the dedicated shutdown method and the function of each power cable listed.

Response

None, that are not electrically protected.

lb.

Provide a table that lists all the cables in the Fire Areas that were considered for possible spurious operation which would adversely affect Cold Shutdown and the function of each cable listed.

l.J lb. Continued

RESPONSE

Circuit No.

Cl3-SV0633/l C13-P00633/l C08L-SV0951/l C33L-C08L/3 C33L-C08L/4 C01-EP0729/l Cl3R-SV0767/l C13R-J542/8 Cl3R-SV0768/l C13R-J542/7 C13L-SV0770/l C13L-J543/15" Cl3L-SV0771/l Cl3L-J 543 I,...

C08R-Z221/l C08R-Cl3R/l C08R-C33R/l C08L-Zl21/l C08L-Cl3L/6 C08L-C33L/l C08R-Z221/2 C08R-Cl3R/3 C08R-C33R/3 C08R-Z221/3 C08R-Cl3R/2 C08R-C33R/2 C02-SV2165/l Cl2-'C02/13 Cl2-PT0206/l C02-3-E/P2136/l Cl2-PT0208/l C02-3-E/P2130 C02-J524/l J524-Z221/l Scheme Dwg.

ElS9 E239 E79 E235 E235 E235 E235 E216 E217 E216 E216 E234 E90 E90 E236 Page 2 Function Control Ckt. to SV0633 Steam Condenser Air Ejector.

Service Water Backup for Seal Clg.

Valve Control.

CV0951 Controls to Cond. makeup Valve CV0729 Controls for CV0767 SG ESOA Bottom Blowdown Controls for CV0768 SG ESOB Bottom Blowdown Controls for CV0770 SG ESOB Bottom Blowdown Controls for CV0771 SG ESOA Bottom Blowdown Controls for CV0861 VlA Service Wtr. Inlet Controls for CV0867 V4A Service Wtr. Inlet Controls for CV0873 V3A Service Water Inlet Controls for CV0864 V2A Service Water Inlet i\\

Controls for CV2165 Primary Makeup Valve BA Pump Disch. Pres. Cont.

BA:Pump Disch. Pres. Cont.

Aux. Spray Stop Valve Cont.

'1 lb.

Continued

RESPONSE

Circuit No.

C02-Z221/10 C02-Cl2/4 C02-Z121/7 C02-3-Z243/1 Cl2-E/P2012/1 Cl2-Zl43/7 Cl2-E/P2122/l B02-M17/l B02-C03/1 C03-M17/l C02-Cl2/3 C02-Z221/5 C33L-SV3001/l C33L-C03L/9 C03L-Cl3L/10 C03L-PS320/l C33R-SV3002/l C33R-C03R/8 C03R-Cl3R/11 C03R-PS321/l C01-J544/l C01-J544/7 C01-J544/3 C01-J544/4

E236 E236 E73 E73 E242 E236 E210, E237 E210, E237 Page 3 Function Let Down Orifice Bypass Stop Valve Control Circuit Let Down Line Bypass Valve Cont.

Control for Let Down Flow CV2012 Control for Let Down Flow CV2122 Control and Power for Charging Pump to SI Tank Test MOV M03072 Control for Let Down Orifice Valves CV2003, CV2004, CV2005 Controls for Containment Spray Valves CV3001 Control for Containment Spray Valve CV3002 Aux. F.W. Flow Control to SG E50A (CV0736A)

lb.

Continued

RESPONSE

Circuit No.

Scheme Dwg.

Function C01-J545/l E79 Aux F. \\'J. Flow Control to S.G.

C01-J545/7 E5011 (CV0737A) co1..:.J545/3 C01-J545/4 C01-J545/5 C01-J545/6 C33L-J545/6 C33L-J545/7 C33L-J545/8 C33L-J545/9 J545-J543/2 J545-J543/3 J545-J571/l J545-J571/2 C01-J280/l E238 Controls to Main Steam Dumps C04-C01/10 C01-Cl2/l C01-J281/1 E238 Controls to Main Steam Dumps C04-C01/ll C01-Cl2/l.

C01-J280/3 E238 Controls to Main Steam Dumps C01-J281/3 E238 Controls to Main Steam Dumps C01-PS0766/l Main Stream Bypass Valve CV0511 C01-SV0509/l C02-Z221/17 E256 Power and Control for PORV 1043B C02-C12/28 B02-J539/i

. J539-Z211/1 BOl-Zlll/4 E256 Power and Control C06-C02/1 for PORV 1042B C02-Cl2/27 C02-Zl21/10 B02-Z211/9 E242 Power and Control to PRV Isol.

C02-Z221/ll Valve MO 1043A B01-Zll2/5 E242 Power and Control to PRV Isol.

C02-Zl21/12 Valve MO 1042A Page 4

lb.

Continued

RESPONSE

Circuit No.

B01-Zll2/4 C02-B01/2 C02-C33L/l C02-Cl2/22 B02-Z211/10 C02-B02/4 C02-C33R/l C02-Cl2/23 Cl1A-Zl22/l Cl1A-Z220/l CllA-Zl22/3 Cl1A-Z220/3 C02-Zl21/5 C02-Zl21/5 C02-Zl21/5 C12-3-Z143/2 C13R-A12/4 Cl3R-A12/6 C03R-Al2/4 C03R-Al2/6 Cl3L-All/6 C03L-All/5 A22-Z101/1 A22-Z101/2 AZ1-Zl03/1 A21-Z103/2 C02-A22/l C02-A22/2 A22-Z104/l A22-Zl04/2 C02-A21/l C02-A21/2 C02-Z222/l C02-Z222/2 C02-Z222/3 '

C02-Z222/4 A21-Zl05/l A21-Zl05/2 Scheme Dwg.

E242 E242 E253

. E253 E253 El83 Function Power and Control to S.D. Clg.

MOV M03015 Power and Control to S.D. Clg.

MOV M03016 Power to ijead Vent PRV-1067 Power to Head Vent PRV-1068 Power to Contaiment Vent PRV-1071 Power to Quench Tank PRV-1072 Control for PZR Spray Valve CV1057 Control for PZR Spray Valve CV1059 PZR Hr Controls HPSI Pump Controls PCP Power le.

Provide a table that lists all the Cables in the Fire Area that share a common enclosure with circuits of the redundant shutdown systems and the function of each cable listed.

Page 5

e le. 'Contiriued FIRE IN AREAS l - 4 RESI:'ONSE:

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

Circuit*No.

Scheme Dwg.

Cll-5-Zl41/5 E277,.Sh. 2 Cl5-Zl43/l thru/21 E226 Cl5-Zl46/l thru/24 E226 C06-3-Zl46/l thru/24 E226 Cl2-2-Zl43/l E78 Cl2-2-Zl43/l E78 C03L-Zl22/l E244, Sh. 5 Cl3L-Zl22/l E245 C03L-Zl22/2 E244 CllA-Zl22/l E256, Sh. 4 CllA-Zl22/2 E256, Sh. 4 CllA-Zl22/3 E256, Sh*. 4

13.

BOl-Zlll/l E244

14.

BOl-Zlll/2 E244

15.

B01-Zl12 /1 E244

16.

B01-Zll2/2 E244

17.

B01-Zll2/3 E244

18.

B01-Zll2/4 E242

19.

B01-Zll2/5 E242 Assoc. Ckt.

  • Function No F.H. Area Mon. #1 No Sec. Rod Pos. Ind. Sys.

No Sec. Rod. Pos. Ind. Sys.

NO' Sec. Rod Pos. Ind. Sys.

No Wide Range S.G. Level No Wide Range S. G. L"evel No HPSI Mode Sel. Val. M03081 No.

HPSI Hot Leg L.D. Valve CV3085 No HPSI Mode Sel. Valve M03083 No Head Vent Pwr. Rel. Valve No Pzr Vent Pwr. Rel. Valve No Cont. Vent Pwr. Rel. Valve No S.I.H.P. Valve MO No S.I.L.P. Valve MO No S.I.L.P. Valve MO No S~I.H.P. Valve MO No S.I.H.P. Valve MO No S.D. Cooling Valve MO No PR Rel. Iso. Valve MO Page 6

e e

Circuit No.

Scheme Dwg.

Assoc. Ckt.*

Function lC

20.

B02-Zl12/6 E244 No S. I. HP Valve MO 2L B02-Zlll/l El86 No Prim. Cool. Pump Backstop Pump

22.

Cl21-Zl12/l E258 No Hydrogen Recombiner

23.

Cl21-Zl12/2 E258 No Hydrogen Recombiner Neutral Win

24.

C01-PL0701/l E244 No Feedwater Reg. Vlv. Pas. Ind.

25.

C01-P00742/l E188 No Condensate Vlvs

26.

C01-SV0742/l El88 No Condensate Vlvs

. 27.

co2..:..z121/10 E256 No Pressurizer Pwr. Rel. Vlv.

28.

Cll-LS0538/l E287 No Annunciation

29.

Cl2-5B-PS0711/l E69, Sh. 3 No Fdwtr. Contl Sol Valves

30.

Cl2-5B-SV701A E6"9, Sh. 3 No Fdwtr Contl Sol.Valves

31.

Cl3-3-P00701/l E298, E53, Sh. 1-3 No Events Recorder

32.

Dll-U60/l E8, E-35 No DC to Emergency Personnel Airlod

33.

Cll-Jl08/2 E115 No Turb. Fdwtr Htr Drain & Dump VlvE

34.

Cl2-5B-EP0701/l E69 No E/P 0701 Feedwater Regulator to S.G. E50A

35.

Cl2-8-FT0524/l E76, Sh. 5 No F.W. Pump Turb. Steam Flow

36.

Cl2-8-FT0527/l E76 No F.W. Pump Turb. Steam Flow

37.

C02-Z121/8 E256 No PORV Control Page 7

lC Circuit No.

Scheme Dwg.

38.

C02-Z121/ll E242

39.

C02-Z121/12 E242

40.

C03L-Z121/5 E85, Sh. 1

41.

C03L-Z121/6 E85, Sh. 1

42.

C08-Zl21/2 E240

43.

C08L-Z121/5 E239

44.

Cl2-Z121/1

45.

C3L-Zl21/1 E244

46.

A13-Cll/1 E287

47.

A21-Cll/1 E287

48.

A21-Cll/2 E289

49.

A22-Cll/1 E287

50.

A22-Cll/2 E289

51.

B07-N63/1 E282

52.

B07-M63/l E282

53.

co4L-xo2/1 Ell

54.

Cll-G20/l E289

55.

Cll-G30/1 E289 Assoc. Ckt.

  • Fun.ction No S.D. CLG Valve No Pres. Rel'f. Iso. Vlv.

No Sfty. Inj. Tank Press. Control No Sfty Inj. Tank Press. Control No Comp. & Shield Clg. Surge Tank Vlv's No Comp. Clg. Wtr. Vlvs.

No Spare No S. I. H.P. Vl v

  • MO No Annunciation No Annunciation No Annunciation.

No Annunciation No Annunciation

  • No Swgr. Rm. Recirc. Fan - Control No Swgr. Rm. Recirc. *Fan - Power Yes STA.

PWR~ XFO 1-2 C.T. CIRCUIT No Annunciation No Annunciation Page 8

lC Circuit No.

Scheme Dw8.

56.

Cll-P00733/l El89

57.

Jl4A-Jl4R/l El54

58.

Jl4A-Jl41:l/2 El54

59.

Jl4A-Jl4R/3 E219

60.

Cl06-C150/l E792

61.

C03L-Zl43/l E79

62.

C03L-Zl43/2 E79

63.

C03L-Zl43/3 E85

64.

C03L-Zl43/4 E85

65.

J571-JL264/1 E79

66.

J571-JL264/2

!<E19

67.

C06-3-Zl43/l thru/21 E226

  • 68.

C08L-Zl43/2 E87, Sh. 2

69.

PS2274-C126/1 Not on-Prints

70.

Cl2-Zl43/l N/A (Spare)

71.

Cl2-l-Zl43/l E69

72.

Cl2-3-J215/l E84, Sh. 4

73.

Cl2-3-Zl21/l E84, Sh. 4 Assoc. Ckt.

  • Function Page 9 No MISC. FDWTR & WASTE SYS. VLVS.

No SERVICE WTR PUMP No SERVICE WTR PUMP No SERVICE WATER VALVE CONTROL No ANNUNCIATION No No No No No No No No No No No No No SFTY. INJ. TANK DRAIN SFTY. INJ. TANK DRAIN SFTY INJ. TANK PRES CONTL SFTY INJ. TANK PRES CONTL Aux. F.W. Flow Control Instr.

Aux. 'F.W. Flow Control Instr.

Sec. Rod Pos. Indication REACTOR SHIELD CLG. COIL SURGE TANK LEVEL INSTR.

Annunciation (SPARE)

FDWTR FLOW CONTL STM GEN INSTR REACT. VES. DIFF. PRESS IND.

REACT. VES. DIFF. PRESS IND.

'(

Circuit No.

Scheme Dwg.

lC 74.

Cl2-3-Zl43/l E82, Sh. 1

75.

C12-3-Z143/2 E84, Sh. 1

16.

C12-3-Z143/3 E98, Sh. 1

77.

C12-3-Z143/4 E98, Sh. 2

78.

Cl2-3-Zl43/5 E98, Sh. 2

79.

Cl2-3-Zl43/6 E98, Sh. 2

80.

C12-3-Zl43/7 E98, Sh. 2

81.

C12-3L-Z143/l E96, Sh. 4

82.

Cl2-3L-Z143/2 E96, Sh. 4

83.

C12-3L-Z143/3 E96, Sh. 4

84.

Cl2~3L-Zl43/4 E96, Sh. 4

85.

Cl2-3L-Z143/5 E82, Sh. 4

86.

Cl2-3L-Zl43/7 E84, Sh. 1

87.

Cl2-5B-Zl43/l thru/4 E69

88.

Cl2-7-Zl43/l thru/3 E96, Sh. 2

89.

Cl2-7L-Zl43/l thru/4 E96, Sh. 5

90.

Cl2L-Z143/l E78

91.

Cl2L-Z143/2 E78 Assoc. Ckt.

  • No No No No No No No No No No No No No No No No No No Page 10 Function PRESSURIZER LEVEL CONTL INST.

PRESSURIZER PRES. CONTL & MEAS'MT PRESSURIZER SPRAY LINE TEMP.

RELIEF & SFTY VLV DISCH TEMP.

RELIEF & SFTY VLV DISCH TEMP.

RELIEF & SFTY VLV DISCH TEMP.

RELIEF & SFTY VLV DISCH TEMP.

PRIM. COOLANT FLOW INSTR.

.PRIM. COOLANT FLOW INSTR.

PRIM. COOLANT FLOW INSTR.

PRIM. COOLANT FLOW INSTR.

PRESS LVL. CONTL. INSTR.

PRESSURIZER PRES. SFTY. INJ. CH.

INSTRUMENTATION FDWTR FLOW CONTL STM GEN. INSTR.

PRIM. LOOP TEMP. MEAS. INSTR.

PRIM. COOLANT TEMP.* PROJECTIVE INSTR.

STM. GEN. LO-LEV. INSTR.

STM. GEN. LO-LEV. INSTR.

Circuit No.

Scheme Dwg.

lC 92.

Cl2L-Zl43/3 E83

93.

Cl2L-Zl43/4 E83

94.

Cl3-1L-Zl43/l E87

95.

Cl3-1L-Zl43/2 E92

96.

Cl3-3-Zl43/l E99, Sh. 1

97.

Cl3-3-Zl43/2 E99, Sh. 1

98.

Cl3-3-Zl43/4 E95, Sh. 2

99.

Cl3-3-Zl43/5 E95, Sh. 2 100.

Cl3L-Zl43/l E93 101.

Cl3L-Zl43/2 E93 102.

Cl3L-Zl43/5 E85, Sh *. 2 103.

J572-JL263/1 104.

J572-JL263/2 E79 105.

C06-1L-Zl42/4 thru/7 E59 106.

Cl2-4-Z142/l thru/4 El41 107.

Cl2-4-Zl43/l E87, Sh. 2 108.

C13-3-Zl21/1 E99, Sh. 1 109.

Cl3-3-Zl21/2 E99, Sh. 1 Assoc. Ckt.

No No No No No No No No No No No No No No No No No No Page ll Function STM GEN LO-PRES. INSTR.

STM. GEN. LO-PRES. INSTR.

CONT. SUMP LVL IND. ALARM SFTY INJ. TANK LEVEL IND. ALARM CONT. BLDG. DOME HUMID. INSTR.

CONT. BLDG. STM. GEN. SPACE HUMID INST.

CONT. BLDG. REACTOR CAV. TEMP.

INST.

CONT. BLDG. GEN. SPACE TEMP. INST L.P. SFTY INJ. FLOW & INSTR.

H.P. SFTY INJ. FLOW IND. INSTR.

SFTY INJ. TANK PRES. IND.

AUX. F. W. *FLOW CONTROL INSTR.

AUX. F.W. FLOW CONTROL INSTR.

LOG CHNL INST. LOOP NUCL. INSTF PRIM. COOLANT PUMP VIBR. MONITOR REACTOR VSL. LVL. INSTR.

CONT. BLDG. DOME HUMIDITY INST.

CONT. BLDG. REACT. CAVITY HUMIDI1 INST.

Circuit No.

Scheme Dwg.

lC 110.

CllA-Zl42/lA thru/lE E1015 111.

Cl2L-JL260/l E78 112.

Cl2L-JL261/1 E78 113.

Cl2-3L-JL262/l E82

. 114.

Al3-C01/l El80 115.

Al3-C01/2 El80

. 116.

Al3-C01/3 El80 117.

Al3-C01/4 El80 118.

Al3-C01/5 N/A 119.

Al3-C01/6 N/A 120.

Al3-C02/l El2, E253 121.

Al3-C04/l El2 122.

Al3-C04/2 El2 123.

Al3-C04/3 El2 124.

Al3-C04/4 Ell 125.

Al3-C04/5 Ell 126.

Al3-C04/6 El2, El33 127.

Al3-C04/7 Ell, El31 128.

Al3-C04/8 El2, E253 Page 12 Assoc. Ckt.

  • No Yes Yes Yes No No No No No Yes No Yes No Yes Yes Yes No No Function PORV MONITOR S.G. E50A LEVEL CONTROL S.G. E50B LEVEL CONTROL PL'R. LEVEL HTR DRAIN PUMP HTR DRAIN PUMP HTR DRAIN PUMP HTR DRAIN PUMP SPARE SPARE PZR. HTR TRANSFORMER CT CIRCUIT P.T. CIRCUIT C.T. CIRCUIT P.T. CIRCUIT C.T. CIRCUIT C.T. CIRCUIT STATION PWR. TRANS. FEED BKR.

CT CIRCUIT 2400 V. BUS INCOMING BKR.

P.T. CIRCUIT

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • lC 129.

Al3-C04/12 Ell, E132 No 130.

A13-C04/13 E117 No 131.

Al3-C04/14 E137 No 132.

A13-C04/15 E12, E133 No 133~ Al3-Cl3/1 N/A (SPARE)

No 134.

Al3-Cl3/2 N/A (SPARE)

No 135.

Al3-Cl3-3/l E53, Sh. 14 & 15 No 136.

A21-C01/1 E182 No 137.

A21-C01/2 E182 Yes 138.

A21-C02 /1.

E183 No 139.

A21-C02/2 El83 No 140.

A21-C02/3 El85 No 141.

A21-C04/2 Ell7 No 142.

A21-C04/3 ElO No 143.

A21-C04/4 ElO No 144.

A21-C04/5 ElO Yes 145.

A21-C04/6 ElO Yes 146.

A21-C04/7 ElO Yes Page 13 Function 2400 V. BUS STARTUP TRANSF. INCOME BRKR.

SWYD & PWR PLT. INTERPOSING RELAYS 2400 V. BUS UNDERVOLT RELAYS STATION PWR TRANSF. FEED BRKR.

SPARE SPARE EVENTS RECORDER CONDENSATE PUMP CONTROL CONDENSATE PUMP AMMETER (C.T.)

PRIM. COOLANT PUMP PRIM. COOLANT PUMP OIL LIFT PUMP SWYD & PWR PLANT INTERPOSING RELAYS P.T. CIRCUIT P.T. CIRCUIT C.T. CIRCUIT C.T. CIRCUIT C.T. CIRCUIT

e e

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 147.

A21-C04L/l El36 No START UP TRANSF. UNDER VOLT CKT

  • 148.. A21-C04L/2 E137 No 4160 V. BUS UNDERVOLT. RELAYS 149.

A21-C04L/3 ElO; E131 No 4160 V. BUS INCOMING BRKR 150.

A21-C04L/4 ElO, El32 No 4160 v. BUS STARTUP TRANSF. INC.

BRKR.

151.

A21-C04L/6 ElO No P.T. CIRCUIT 152.

A21-Cl2/l

ElO, E183 Yes C.T. CIRCUIT 153.

A21-Cl2/2 ElO, E183 Yes C.T. CIRCUIT 154.

Az1.:..c12/3 E291 No ANNUNCIATOR 155.

A21-Cl3-3/l E298, E53, Sh. 1-3 No EVENTS RECORDER 156.

A22-C01/l ElO, E182 No CONDENSATE PUMP 157.

A22-C01/2 ElO, E182 Yes C.T. CIRCUIT 158.

A22-C02/1 ElO, E183 No PRIM. COOLANT PUMP 159.

A22-C02/2 ElO, E183 No PRIM. COOLANT PUMP 160.

A22-C02/3 E185 No PRIM. COOLANT PUMP OIL LIFT PUMP 161.

A22-C04/1 ElO, E132 Yes C.T. CIRCUIT 162.

A22-C04/2 ElO, E132 No P.T. CIRCUIT 163.

A22-C04/3 ElO, E131 No 4160 V. BUS INC. BRKR.

164.

A22-C04/4 ElO, E132 No 4160 V BUS S.V. TRANSF. INC. BRKR 165.

A22-C04/5 ElO Yes C.T. CIRCUIT Page 14

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • lC 166.

A22-C04/6 E707.

Yes 167.

A22-C04/7 Ell7 No 168.

A22-C04/8 E137 No 169.* A22-C04/9 E137 No 170.

A22-C04/10 ElO No 171.

A21-C04/ll ElO No 172.

A22-Cl2/1 ElO, E183 Yes 173.

A22-Cl2/2 ElO, E183 Yes 174.

A22-Cl2/3 E291 No 175.

A22-Cl3-3/l E298, E53, Sh. 1-3 No 176.

B01-Tl2/l El OS No 177.

B01-Tl2/2 El OS No 178.

B02-C21/l ElOl No 179.

B02-Gl2/1 El OS No 180.

B02-Tll/1 E107 No 181.

B02-Tll/2 E107 Yes 182.

B02-Tll/3 E107 No 183.

B02-Tll/4 E108 No 184.

B02-Tl2/1 ElOS No Page 15 Function C.T. CIRCUIT SWYD & PWR PLT INTERPOSING RELAYS 4160 V. BUS UNDERVOLTAGE RELAYS 4160 V. BUS UNDERVOLTAGE RELAYS P.T. CIRCUIT P.T. CIRCUIT C.T. CIRCUIT C.T. CIRCUIT ANNUNCIATOR EVENTS RECORDER EMER BRG. OIL PUMP HP SEAL OIL BACKUP PUMP HYDROGEN SYS. ANNUN.

T.G. EMERG. AIR SIDE SEAL OIL BACr UP PUMP T.G. DRIVE MTR -

PWR CKT.

T.G. DRIVE MTR - C/T CKT.

T.G. DRIVE MTR - CONTL/INDIC.

T.G. DRIVE MTR - AUTO ENG. CONTL.

TURN GEAR OIL PUMP

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 185.

B04-Xl0/l E148-No MAIN TRANSF. COOLING 186.

COl-EOl/l E9 No DC AMMETER 187.

COl-EOl/2 E9 No DC AMMETER 188.

COl-EOl/3 E9 No VOLTAGE INPUT TO VOLTAGE REGULATOR 189.

COl-EOl/4 E125 No TURB. GEN. EXCITER FLD. BRKR CONTl 190.

COl-EOl/5 El24 No T.G. MTR. OPERATED BASE ADJUSTER 191.

COl-EOl/6 El26 No T.G. VOLT. REG. CONTL.

192.

COl-EOl/7 E9 No P.T. CIRCUIT 193.

COl-EOl/8 E9 No VOLT. INPUT TO VOLTAGE REGULATOR 194.

COl-EOl/9 E9 No P.T. CIRCUIT 195.

COl-EOl/10 E9.

No P.T. CIRCUIT 196.

C01-P00742/l El88 No CONDENSATE VLVS.

Page 16

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 197. C0l-SV0742/l El88 No Condensate Valve 198. COl-Tll/l El06 No Bearing Lift Oil Pump 199. COl-Tll/2 El OS No T.G. Auto Engaging Cont'l 200. COl-Tll/3 E107 No T.G. Drive Mtr.

201. C01-Tl2/l El07 No T.G. Drive Mtr.

202. C02-Ulll/l E169 No Evac. Siren Ckt.

203. C04-E01/l E118 No Turb. Gen. Prot-Prim.

204. C04-G07/l E9

.Yes Generator Grounding Metering 205. C04L-E01/l El36 No 4160 V. Bus Transfer.

  • 206. C04R-E01/1 El26 No Turb. Gen. Volt Reg. Contl.

207. Cll-N21/l E288 No Annunciation 208. Cl2-5B-SV701A E69, Sh. 3 No SV'S FOR F.W. FLOW CONTROL 209. C13-3-P00539/1 E298 No Events Recorder 210. C50-Xl0/l E552, E519 Yes Main Transformer C/T's

  • 211. Dll-U60/l ES, E35 No Emer.. Airlock 212. Cll-JlOS/2 Ell5 No Turb. Fdwtr, Htr Drain & Dump Vlv:

213. J210-RE2311/l E29, E227 No Area Radiation Monitoring Sys.

214. Cl3-3-P00603/l E298 No Events Recorder 215. C50-X04/l E552, E519 Yes S.U. Transformer 1-1 C/T's Page 17

Circuit No.

Scheme Dwg.

lC 216. Cl3-3-P00607 /1 E29~.

217. TT0706-Y01/1 E29 218. BOS-COl/1 E102 219. BOS-COl/ 2 E102 220. BOS-Cll/l E288 221. BOS-Cll/ 2 El03 222. B05-C13/3 El59 223. BOS-C13/ 4 El59 224. B06-Cll/l E103 225. B06-Cll/2 E288 226. Bl0-TS184 7 /l E272 227. Bl0-TS1848/l E272 228. COl-JOl/l E9 229. C01-Jl04/l E112 230. C01-Jl04/2 EllS 231. COl-JlOS/l E112 232. COl-JlOS/2 EllS

  • 233. C01-P00521/l E238 234. C01-P00670/l E188 Assoc. Ckt.
  • No No No No No No No No No No No No Yes No No No No No No Page 18 Function Events Recorder 110 Power to TT0706 Turb. Gen. Hydrogen Side Seal Oil Pump Aux.

Turb. Gen. Hydrogen Side Seal Oil Pump Aux.

Annunciator - Generator Lube Oil Reservoir Vapor Extractor Well Pump Well Pump Lube Oil Res. Vapor Extractor Annunciation Turb. Bldg. Exhauster Turb. Bldg. Exhauster Gen. Meter'g & Sync. (C/T's)

Turb. Fdwtr. Htr. Bldr. Trip Vlvs Turb. Fdwtr Htr Drain & Dump Vlvs Turb. Fdwtr Htr Bldr. Trip Vlvs Turb. Fdwtr Htr Drain & Dump Vlvs Main Stm Iso. Vlv.

Condensate Vlvs.

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 235. C01-P00730/l El88 No Condensate Vlvs.

236. C01-P00783/l El88 No (Deleted) 237. C01-PS0730/l El88 No Cond. Recirc. Valve Control 238. C01-PS0741/l El2, El96 No Mtr Driven Aux Fdwtr Pump 239. C01-PS0766/l E238 No Main Stm. Iso. Vlv.

240. C01-PS0783/l El88 No (Deleted) 241. C01-SV0670/l El88 No Condensate Vlvs.

242. C01-SV0730/l El88 No Condensate Vlvs.

243. C01-SV0783/l N/A No Spare 244. C01-T22/l thru/6 El23 No Turb. Indication 245. C11A-Z143/1 E88, Sh. 3 No Signal From PT1066 246. C01L-PS0741/2 E238 No Aux. F.W. Pump *steam Vlv Contl.

247. C02-Ull2/l El69 No Evac. Siren Ckt.

248. C04-C23/l El21 No Interlock Gen. ACB 249. C04-J01/l E9 Yes Generator Relaying (C/T) 250. C04-J01/2 E9 Yes Generator Differential (C/T) 251. C04-J01/3 E9 Yes Generator Differential (C/T) 252. C04-J01/4 E9 Yes

  • Unit Differential (C/T) 253. C04-T01/l El21 No Turb. Prot.

Page 19*

Circuit No.

lC 254. C04-T22/l 255. C04-T60/l 256. C04L-T01/l 2'57. C06-T05/1 258. C06-1-T04/1 259. Cll-C23/3 260. Cll-G03/1 261. Cll-G03/2 262. Cll-J104/l 263. Cll-Jl04/2 264. Cll-J104/3 265. Cll-JlOS/1 266. Cll-JlOS/2 267. Cll-JlOS/3 268. Cll-LSOSSS/1 269. Cll-LS5217/l 270. Cll-LS5218/1 271. Cll-N23/1 272. Cll-N27/1 Scheme Dwg.

El21 E121

  • E136 N/A E121, Sh. 2 E287 E123 El22 E112 EllS E287 E112 EllS E287 E287 E287 E287 EllO

. EllO Assoc. Ckt.

  • Function No Turb. Prot.

No Turb. Prot.

No 2400 V. Bus Transfer No Spare No Turb.

Runback Circuit No Annunciation No Turb, Gen. &*Transf. Temp Rcdr.

Yes Tach. Generator No Turb. Fdwtr Htr Bldr Trip Vlvs No Turb. Fdwtr Htr Drain & Dump Vlvs No Annunciation No Turb. Fdwtr Htr Bldr Trip Vlvs No Turb. Fdwtr Htr Drain & Dump Vlvs No Annunciation No Annunciation No Annunciation No Annunciation No Gland Stm, Condenser Exhauster No Gland Stm. Condenser Exhauster Page 20

Circuit No.

lC 273. Cll-P00733/l 274. Cll-PS0632/1 275. Cll-PS0742/1 276. Cll-PS0764/l 277. Cll-PS0765/1 278. Cll-SV0521/1 279. Cll-TOl/l 280. Cll-TOl/2 281. Cll-TOl/S 282. Cll-T02/1

. 283. Cll-T04/l 284. Cll-T05/.1 285. Cll-T05/3 286. Cll-TOS/4 287. Cll-T60/1 288. Cll-4-JL182/2 289. Cl3-C36/l 290. C13-C37/l 291. C13-C47 /1

.e Scheme Dwg.

Assoc. Ckt.

  • Function El89 E287 E287 E287 E287 E238 E122 E122.

E287 E122 E122 E122 E287 E287 E287 E229 E12, E163, M32-l E164, M32-14 E292 Page 21 No Misc. Fdwtr & Waste Sys Vlvs.

No Annunciation No Annunciation No Annunciation No Annunciation No Main Stm. Iso. Vlv.

No Casing & Diff. Exp. Gov End No Rotor Eccentricity No Annunciation No Casing & Diff. Expansion No Casing & Diff, Expansion No Turb. Steam Valve Position Potentiometers

  • No Annunciation No Annunciation No Annunciation No.

Liquid Disch'g. Sampler Mtr.

Yes Mtr. Driven Fire Pump Contl.

No Diesel Fire Pump No Annunciator

Circuit No.

lC 292. Cl3-LS2009/l 293. Cl3-LS2019/l 294. Cl3-LS2020/l

. 295. Cl3-LS2022/l 296. C13-N07/l 297. Cl3-P02008/l 298. Cl3-P02010/l 299. Cl3-P02011/l 300. Cl3-SV2008/l 301. Cl3-SV2010/l 302. Cl3-SV2011/l 303~ Cl3-3-T04/2 304. C47-j4700/l thru /3 305. Jl09-Y01/l 306. T22-Y01/l 307. C01-PT0510/l 308. C01-EP0729/l 309. B06-Cll/l 310. B06-Cll/2 e

Scheme Dwg.

Assoc. Ckt.

  • Function El59 El75*

El59 El59 E292 El59 El59 El59 El59 El59 El59 N/A E296 El71 E29 E75, M206, Sh. 9 E79 E103 E288 Page 22 No Well Pump Cont'ls No Pri. Sys. M. U. Xfer Pumps Contl No Well Pump Cont'ls No Well Pump Cont'ls No Annunciator No

  • Well Pump Cont' ls No Well Pump Cont'ls No Well Pump Cont'ls No Well Pump Cont'ls No No No No No No No No No No Well Pump Cont'ls Well Pump Cont 1ls Spare Annunciators: F.A. Pnl.

Chem. Inj. Tanks Low Lvl Alarm Turb. Superv. Instr.

Main Steam Hdr. Press.

Cond. Fill. M.U. &.Max Blowdown Control Gen. L.O. Vapor Extractor Annunciator

e e

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 311.. Cll-Jl21/l E287, E35 No Annunciator 312. Cl3-JL182/l E292, E35 No Annunciator 313. C13-N06/l E292, E35 No

. Annunciator 314. Cl3-3-P00610/1 E298 No Events Recorder 315. C13-3-P00611/l E298 No Events Recorder 316. C13-3-P00614/1 E298 No Events Recorder 317. C13-3-P00617/1 E298 No Events Recorder 318. C13-3-P00618/l

.E298 No Events Recorder 319. D21-Jl21/l E8 No Turbine Misc. Cont'l 320. C01-Jl04/l Ell2 No Turb. Fdwtr. Htr. Bldr. Trip Vlvs 321. Cll-Jl04/l El12 No Turb. Fdwtr Htr Bldr Trip Vlvs 322. Cl2-IPOi13/l E68 No F.W. Flow Totalization 3 23

328. B03-C08/2 E218 No Cont. Cooler Recirc. Fan 329. B03-C08/3 E218 No Cont Cooler Recirc. Fan Page *23

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function lC 330. B03-X22/l ElOO No Inst. A.C. Transf. No. 2 331. C02-Ul20/l El69 No Evac. Siren Ckt.

332. Cl3-3-P00603/l E298 No Events Recorder 333. Cl3-3-P00607/l E298 No Events Recorder 334. C50-X04/l E552 Yes S.U. Transformer #1 C/T's 335. TT0706-Y01/l E29 No 110 V Pwr to TT0706 336. Cl2-Zl43 E84, Sh. 6 No Prim. Coolant Overpressurization 337. Cl2L-Zl43/l

  • E78 No Stm. Gen. Lo Lvl Inst.

338. Cl2L-Zl43/2 E78 No Stm. Gen Lo Lvl Inst.

339. Cl2L-Zl43/3 E83 No Stm. Gen Lo Pres. Inst.

340. Cl2L-Zl43/4 E83 No Stm. Gen Lo Pres. Inst.

341. Cl2-.2L-Zl43./6.

E82, Sh. 4 No Pressurizer Lvl Chnl "C" 342. Cl3L-Zl43/3 E93 No*

L.P. Sfty. Inj. Flow Ind.

343. Cl3L-Zl43/4 E93 No H.P. Sfty. Inj. Flow Ind.

344. Cl3L-Zl43/6 E85, Sh. 2 No Sfty. Inj. Tank Press. Ind.

345. C03L-Zl43/5 E85, Sh. 1 No Sfty. Inj. Tank Press. Cont'l In£ 346. C03L-Z143/6 E85, Sh. 1 No Sfty Inj Tank Press Cont'l Instr.

347. J545-Zl43/16 E93 No HPSI Hot Leg Flow Msm't 348. J545-Zl43/17 E86 No HPSI Hot Leg Pres. Ind.

Page 24

le.

-~49.

350.

e e

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function Z143-C12/1 E78 No WRSGL Zl43-C12/1 E78 No WRSGL Circuits listed as YES under Assoc. Ckt. are addressed in part 3 or Section ld.

Circuits listed as NO under bssoc. Ckt. are electrically protected and therefore not considered as associated circuits.

Page 25

ld.

Show that fire-induced failures of each* of the cables listed in la, lb and le will not prevent or cause maloperation of the dedicated shutdown system.

Responses:

I.

Cables listed in la:

N/A since no cables are listed.

II. *Cables listed in lb:

Circuit Function Cl3-SV0633/1 C13-P00633/1 Control Circuit to SV0633 - Steam Condenser Air Ejector Control Valves - CV0633 and CV0634 If the hogging air injector is in use, these valves will be partially open.

These valves require air to close.

Loss of DC power would cause CV0634 to open.

CV0633 is pneumatically controlled only, with no electrical connection.

If the main steam isolation valves were open, the spurious operation or indication of CV0633 or CV0634 would merely cause an increase in the cooldown rate.

There would be no adverse effect. If the main steam isolation valves were closed, spurious opening or indication of these CV's would have no affect on plant operation.

Therefore, no further action is required.

Circuit C13R-SV0767/1 C13R-J542/1 C13R-SV0768/1 C13R-J542/1 C13L-SV0770/1 C13L-J543/

Cl3L-SV0771/1 C13L-JS43/

C02-Z221/10 C02-C12/4 C02-Z121/7 C02-Z221/17 C02-Z221/17 C02-Cl2/2B B02-J539/1 J539-Z211/l BOl-Zlll/4 C06-C02/l C02-C12/27 C02-Zl21/10 Function Controls for CV0767, SG ESOA Bottom Blowdown Controls for CV0768, SG ESOB Bottom Blowdown Controls for SV0768, SG ESOB Bottom Blowdown Controls for CV0771, SG ESOA Bottom Blowdown Controls for CV2002, Letdown Orifice Bypass Stop Valve Control to PORV-1042B and 1043B

  • Control to PORV-1042B and 1043B PCS Power-Operated Relief Valves nu0682-0583a-43-142 Page 26

ld.

(Contd)

Circul.t CllA-Zl22/l CllA-Z220/l CllA-Zl22/3 CllA-Z220/3 C02-3-Z243/l B02-Z211/9 C02-Z221/ll B01-Zll2/5 C02-Zl21/12 Function Power to Head Vent PRV-1067 Power to Head Vent PRV-1068 Power to Containment Vent PRV-1071 Power to Quench Tank PRV-1072 Control for CV2202, Letdown Line Bypass Valve Power and Control M01042A and M01043A, PRV Isolation Valves Hot shorts could cause the above valves to open, but there would be no impact unless the in-series normally-closed valves were to get a concurrent hot short also(ie, there would have to be two concurrent hot shorts which operied these series valves).

One method of preventipg spurious opening of these valves is to remove the DC power system (DlO and/or Dll) on the station batteries.

This will cause these valves to fail in the safe position.

Procedures will be developed to instruct the operators to take appropriate action to control selectively s.uch malfunctioning valves, or as a last resort to remove DC power.

C08L-SV0951/l C033L-C08L/3 C33L-C08L/4 Service Water Backup for Seal Clg Valve Control Spurious operation of this valve could result in loss of CCW inventory, if the Engineered Safeguard Pumps were in use.

CP Co. is considering installing a key operated switch to electrically lock this valve closed.

C02-JS24/l J524-Z221/1 C02-Cl2/3 C02-Z221/5 Cl2-E/P2012/l Cl2-Zl43/7 Cl2-E/P 2122/1 C02-Zl21/5 Controls for CV2117; Auxiliary Spray Stop Valve Controls for CV2003, CV2004 and CV2005, Letdown Orifice Valves Control for CV2012 and CV2122, Letdown Flow Control Valves Control for E/P 1057 (CV1057) and E/P 1059 (CV1059)

Pressurizer Spray Valves Spurious operation of these valves would cause a perturbation in primary coolant system pressure control.

Corrective action would be to start another charging pump or to isolate letdown.

One method of preventing the nu0682-0583a-43-142 Page 27

ld.

(Contd)

Circuit Function spurious operation of these valves is to remove the appropriate DC power system (DlO and/or Dll) from the station batteries.

This will cause the valves to fail in a safe position.

Procedures will be developed to

  • instruct the operators to take appropriate action or to remove DC power.

COI-J280/1 C04-COI/10 COI-C12/1 COI-J281/1 co4:..co1/11 C01-C12/1 C01-J280/3 C01-J281/3 C01-PS0766/1 C01-SV0509/1 Controls for CV077_~, CV0780, CV0781 and CV0782, Main Stream Dumps Controls for CV0511, Main Steam Bypass to Condenser These valves are used to control secondary pressure and/or cooldown rate.

Spurious operation of these valves would be readily detectable by a several decade increase in background noise level in the vicinity of the Auxiliary Shutdown Panel.

Corrective action would be to close the manual isolation valve in series with each of these CV's.

Therefore, no further action is required.

C08R-J14A/1 J14A-J14R/1 C08R-Z221/1 C08R-C13R/1 C08R-C33R/1 C08L-Z121/1 C08L-C13L/6 CO~L-C33L/1 C08R-Z221/2 C08R-C13R/3 C08R-C33R/3 Control for CV1359~ Service Water to Noncritical Header

.Control for CV0861, Containment Air Cooler VIA.Service Water Inlet Control for CV0867, Containment Air Cooler V4A Service Water Inlet.

Control for CV0873, Containment Air Cooler V3A Service* Water Inlet nu0682-0583a-43-142 Page 28

ld.

(Contd)

Circuit COSR-2221/3 C08R-C13R/2 C08R-C33R/2 Function Controls for CV0864, Containment Air Cooler V2A Service Water Inlet Spurious opening of these valves would cause an increase of service water flow.

Since there is sufficient reserve to accommodate this increased flow, there would be no adverse plant impact.

Spurious closing of these valves could cause the loss of service water cooling to the noncritical side of the plant or to one of the four containment air coolers.

Consumers Power Company does not consider it credible that all four containment air coolers would be affected at once.

Therefore, no further action is being considered.

C02-SV2165/1 Control for CV2165, Primary System Makeup Valve c12~co2;13 This valve provides demineralized water to the blender for ultimate use in volume control tank make-up.

There is a series valve (CV2155) that is closed and is not affected by any hot-short transient.

Therefore, no further action is required with regard to this valve.

Cl2-PT0206/1 C02-3-E/P2136/l Cl2-PT0208/1 C02-3-E/P2130/1 Controls for CV2130 and CV2136, Boric Acid Discharge Pressure Control The spurious opening of these valves would change the boric acid pump discharge pressure which affects the charging pump suction pressure.

The boric pumps are redundant to*the gravity feed path between the concentrated boric acid tanks and the charging pumps.

Since this redundant path is not affected by hot-short potentials, there would be no.adverse plant impact.

Therefore, no further action is required.

B02-Ml7/l B02-C03/1

  • C03/M17/1 Control and Power for M03072.

MOV in Line From Charging Puinps to SI Tank Test Line This MOV is used to test the safety injection check valve during power operation.

The spurious operation of this valve would cause part of the charging pump discharge to enter the high pressure safety injection lines rather than through the letdown lines.

Also, it would eliminate use of the auxiliary spray line for pressurizer cooldown.

The auxiliary pressurizer spray is a backup to the normal sprays and will be used only if primary coolant pumps B and C are both unavailable.

Pressurizer spray is not a requirement for attaining cold shutdown since the pressu~izer can be cooled by alternate filling and draining.

Procedures will be developed to instruct the operators to take appropriate action to selectively control such malfunctioning equipment or as a last resort to. remoye normal DC power.

nu0682-0583a-43-142 Page 29

Id.

(Contd)

Circuit Function

.C33L-SV3001/1 C33L-C03L/9 C03L-C13L/10 C03L-PS320/1 C33R-SV3002/1 C33R-C03R/8 C03R-C13R/11 C03R-PS321/l Control for CV3001 and CV3002, Containment Spray Valves If the normal de is de-energized, these valves will fail open.

However, this will not be a problem until an LPSI pump is started for shutdown cooling.

A procedure will be written to close the Containment Spray Manual Isolation Valves prior to commencing shutdown cooling.

B01-Zl12/4 C02-B01/2 C02-C33L/1 C02-C12/22 B02-Z211/10 C02-B02/4 C02-C33R/1 C02-C12/23 Power and Control to M03015 and M03016, Shutdown Cooling MOVs It was previously committed to the NRC to check valves closed and disconnect operating power from both valves prior to pressurizing the PCS above 260 psig (reference letter from Consumers Power Company to the NRC dated March 19, 1981).

CV0736, CV0737 Auxiliary Feedwater Control Valves Electrical operators are disabled and the CVs are mechanically locked closed.

CV0731 Cond Rejection to Cond Tank All Pneumatic Controls (No Electrical)

CV0732 Normal Cond Makeup All Pneumatic Controls (No Electrical) nu0682-0583a-43-142 Page 30

ld.

(Contd)

Circuit C01-J544/1 C01-J544/7 C01-J544/3 C01-J544/4 co1'...Js44/s C33R-J544/6 C33R-J544/7 C33R-J544/8 C33R-J544/9 J542-J544/4 J542-J544/5 J544-J572/1 J544-J572/2 C01-J545/1 C01-J545/7 C01-J545/3 C01-J545/4 C01-J545/5 C331-J545/6 C331-J545/7 C331-J545/8 C331-J545/9 J545-J543/2 J545-J543/3 J545-J5 71/1 J545-J571/2 Function Control for CV0736A, Auxiliary Feedwater Flow Control to SG ESOA Control for CV0737A, Auxiliary Feedwater Flow Control to SG ESOB Valve controls will be isolated by isolation switches and relays designed into the Auxiliary Hot Shutdown Panel.(reference letter from Consumers Power Company to the NRC dated March 19, 1981 for details).

C12-3-Z143/2 C02-Z121/5 Control for Backup and Proportional Heater Banks*

If some of the pressurizer heaters came on due to hot short, there would be no immediate adverse affect. If this went uncorrected for many hours and the pressure became high enough, it would be relieved throug the code safety valves. If the heaters came on during cooldown, the cooldown would be delayed, but there would. be no adverse affect.

Therefore, no further action is required.

C13R-A12/4 C13R-A12/6 C03R-A12/4 C03R-A12/6 C131-All/6 C031-All/5 Power and Control to PC Pumps and HPSI Pumps nu0682-0583a-43-142 Page 31

ld.

(Contd)

Circuit Function Spurious operation of a high-pressure safety injection pump is only a problem if it initiates a low-temperature over-pressurization event~ The Auxiliary Shutdown Panel procedurewill include a step to open the feeder breakers and pull the control fuses on these pumps.

A22-Zl01/l A22-Zl01/2 C02-A22/l C02-A22/2 A21-Zl03/1 A21°-Zl03/2 A22-Z104/l A22-Z104/2 A21-Zl05/l A21-Zl05/2 C02-A21/l C02-A21/2.

C02-Z222/1 C02-Z222/2 C02-Z222/3 C02-Z222/4 Spurious operation of a primary coolant pump is not.conceivable for the following reasons:

a) extremely low impedance would be required in the hot-short, b) the need for concurrent oil lift pressure, and c) the large amount of balanced three-phase power required to start the pump.

COl-E/P 0729/1

  • Control for CV0729, Makeup for Cond Fill and Max Blowdown Thi.s valve is used for condensate make-up to the hot well from the condensate storage tank.

Spurious operation of this valve has the potential of reducing or eliminating the water supply to the auxiliary feedwater pumps.

The auxiliary feedwater shutdown panel procedure will have a step that requires manual isolation of this valve; or, the circuitry will be modified such that loss of DC power will cause this valve to close.

In this case, a step will be placed in the procedures to remove DC power from circuitry.

III.

Cables listed in le:

Circuit Function C12L-JL260/1 C12L-JL261/1 CI2-3L-JL262/1 E78 E78 E82 nu0682-0583a-43-142 SG ESOA Level Control SG ESOB Level Control PZR 'Level Page32

. Id.

(Contd)

The circuits are presently isolated by switches and relays installed or con-trolled from the new auxiliary hot shutdown panel (C150). _These were de-scribed in previous correspondence to NRC.

C04-G07/I E9 Generator Grounding Metering During normal operation, there is no neutral current flowing in the generator neutral overvoltage relay.

This would only be during fault conditions; in which case, the unit would be tripped by protective relaying.

The only time a short in this cable could be a problem is if there was a fire causing a short in this cable at the same time the unit faulted.

This is a highly improbable situation; therefore, no isolation device should be required.

C11-G03/2 E112 Tach Generator Circuit The worst case is a short to ground caused by a fire in the cable spreading room.

The maximum fault current in this case would be I7.3 amps, with the length of No I4 cable in the circuit being 720 feet minimum, and with the maximum tachometer output of 32 volts.

Also, upon control room notification of a fire, the turbine would immediately be tripped, causing the tach output voltage and fault current valves to drop to near zero in a fairly short period of time.

The maximum fault current is well within the current carrying capacity of the circuit for the time periods involved and will not cause any subsequent damage outside of the fire area.

Therefore, the circuit is impedance protected, and no fusing is required to protect the circuit.

CI3-C36/I EI63 M32-I Motor-Driven Fire Pump Control,

Spurious starting of this pump does not create a problem since the Fire Header Pressure Control Valve has sufficient capacity for the pump's flow.

Failure of the pump to start on demand is not a problem since the diesel-driven fire pumps have sufficient capacity to supply the entire plant.

C04L-X02/1 Ell CT Circuit Al3-C02/I EI2 CT Circuit A13-C04/2 E12 CT Circuit A13-C04/4 Ell CT Circuit A13-C04/5 Ell CT Circuit

.A13-C04/6 E12 CT Circuit A2I-COI/2 E182 CT Circuit A2I-C04/5 ElO CT Circuit A2I-C04/6 ElO CT Circuit A21-C04/7 ElO CT Circuit A2I-C12/I ElO CT Circuit A2I-CI2/2 ElO CT Circuit A22-COI/2 EID CT Circuit A22-C04/I ElO CT Circuit A22-C04/5 ElO CT Circuit A22-C04/6 E707 CT Circuit A22-CI2/I ElO CT Circuit nu0682-0583a-43-142 Page 33

ld.

(Contd)

Circuit Function A22-C12/2 ElO CT Circuit B02-Tll/2 E107 CT Circuit COl-JOl/1 E9 CT Circuit CSO-Xl0/1 E519 CT Circuit CSO-X04/1 E519 CT Circuit C04-J01/1 E9 CT Circuit C04-J01/2 E9 CT Circuit C04-J01/3 E9 CT Circuit C04-J01/4 E9 CT Circuit CSO-X04/1 E552 CT Circuit The conductor size of the above circuits is 9 AWG minimum.

The circuits listed above are feeding metering and relaying from current transformer secondaries.

These circuits are not and should not be electri-cally protected by fuses or circuit breakers.

Any of these circuits will function satisfactorily (no overheating of cable) with a short circuit placed anywhere from the CT secondary terminals to the terminals of the instruments they feed.

If any of these circuits burned open, the secondary voltage of the CT would rise (if the primary of the CT was still sensing current; that is, the equip-ment being monitored was still energized), this voltage could rise to a point that it would break down the insulation at some point or destroy the CT from the electrostatic forces.* The most probable location for the insulation breakdown to occur would be at the location of the fire where there would be a very conductive atmosphere.

Therefore, it is highly unlikely that the con-ductor insulation would break down and possibly cause another fire elsewhere in the plant.

/

nu0682-0583a-43-142 Page 34

ATTACHMENT B Consumers Power Company

.Palisades Plant ASSOCIATED CIRCUITS FIRE IN S.W. PENETRATION ROOM July 1, 1982 10 Pages

1.
2.
3.
4.
5.
6.
7.
8.

AT'I'ACill-!LHT B ASSOCIATED CIRCUITS FIRE IN S.W. PENETRATION ROOM The following sections provide Consumers Power Company's responses to Enclosure 1, Item 2 of NRC letter dated April 7, 1982.

As stated previously, the fire area approach, as outlined in the NRC letter of April 7, 1982, was used for the analysis and the sections which follow are formatted accordingly.

la.

Provide a table that lists all the power cables in the S.W. Penetration Room that connect to the same power supply as the dedicated shutdown equipment.

RESPONSE

None, that are not electrically protected.

lb.

Provide a table that lists all cables in the S.W. Penetration Room that were considered for possible spurious operation which would adversely effect Hot or Cold Shutdown and the function of each cable.

RESPONSE

C08L-Z121/1 C02,-Z121/7 C12-Z143/7 B01-Z111/4 C02-Z121/10 B01-Z112/5, C02-Zl21/12 BOl-2112/4 C11A-Z122/1 C11A-Z122/3 C02-Z121/5 Cl2-3-Z143/2, C02-Z121/5 A22-Z101/1 A22-Z101/2 A21-Z103/1 A21-Z103/2 A22-Z104/1 A22-Z104/2 A21-Z105/1 A21-Z105/2 C150-JL263/1 C150-JL264/1

.I Control for CV0867 V4A Service Water Inlet Letdown Orifice Bypass Stop Valve CV2002 Cont. Crt Control for Letdown Flow CV2012 Power & Control for PORV 1042B Power & Control for PORV 1042B Power & Control to PRY. !sol. Valve M0-1042A Power to S. D. CLGMOV M03015 Power to Hd. Vent PRV-1067 Power to Cont. Vent PRV-1071 Control for PZR Spray CV's CV1057 & 1059 &

PZR Heaters PCP Power Feeds E79 E79 Control for XFER Relay R0736C that isolates controls for Aux.

F.W. Flow Control Cont~ol for XFER Relay R0737C that isolates controls for Aux. F.W.

Flow Control.

le.

Provide a table that lists all Cables in the Fire Area that share a common enclosure with circuits of the redundant shutdown systems and function of cables listed.

P~l~SPOIJSE :

--*circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function C12-1Z143/1 E69 No F.W. Flow Cont.

C12-3-Z143/1 E82 No Press Level C12-3-Z143/2 E84 No Press Pres. Cont.&MSMT C12-3-Zl43/3 E98 No Press Spray Line Temp.

C12-3-Z143/4 E98 No PCS RV Disch. Temp.

C12-3-Z143/5 E98 No PCS RV Disch. Temp.

C12-3-Z143/6 E98 No

~~~ ~~ Bi~g~: t~Wi\\$:

C12-3-Z143/7 E98 No Ch.

e e

le.

Continued

RESPONSE

Circuit No.

Sche::i.e Dvg.

Assoc. Ckt.

  • Function
9.

C12-3L-Z143/l E96-4 No*

Pri. Coolant F'low

10.

Cl2-3L-Z143/2 E96-4 No Pri. Coolant Flow

11.

Cl2-3L-Zl43/3 E96-4 No Pri. Coolant Flow

12.

Cl2-3L-Zl43/4 E96-4 No Pri. Coolant Flow

13.

Cl2-3L-Zl43/5 E82-4 No Press. Lvl. Control

14.

Cl2-Zl43/1 E78-2 No W.R.S.G.L.

15.

C12-Z143/l E78-2 No W.R.S.G.L.

16.

C12-Zl43/7 E84-2 No Press Pres. Cont. & Msm't

17.

Cl2-5B-Zl43/l E69 No Fdwtr Flow Control

18.

Cl2-5B-Z14J/2 E69 No Fdwtr Flow Control

19.

Cl2-5B-Zl4J/3 E69 No Fdwtr Flow Control

20.

Cl2-5B-Zl4J/4 E69 No Fdwtr Flow Control

21.

c12-1:....z143/1 E96-2 No PSC Loop Temp.

22.

Cl2-7-Zl43/2 E96-2 No PSC Loop Temp.

23.

C12-7-Zl43/3 E96-2 No PSC Loop Temp.

24.

Cl2L-Zl43/l E78 No S.G. Level

25.

C12L-Zl43/2 E78 No S.G. Level

26.

Cl2L-Zl43/3 E83 No

s. G. Pres.
27.

Cl2L-Zl43/4 E83 No S.G. Pres.

28.

C02-Zl21/1 E254 No B.U. Htr Bank Control

29.

C02-Zl21/2 E154 No Press. Htr Control

30.

C02-Zl21/3 E254 No B.U. Htr Bank Control

31.

C02-Zl21/4 E236 No S.D.C. Charging & L.D. Val*

32.

C02-Zl21/5 E253-E84 No Per Htr SCR Cont.

33.

C02-Zl21/6 E253-2 No Press Spray Vlv. Ind. Circ*

34.

C02-Zl21/7 E236 No L.D. Orifice Bypass *stop V

35.

C03L-Z121/1 E244 No S.I. MOV

36.

C03L-Z121/2 E244 No s.I. MOV

37.

C03L-Z121/3 E244 No S.I. MOV

38.

C03L-Z121/4 E244 No S.I. MOV

39.

C03L-Z12l/9 E245 No S.I. & Shutdown CLG. Valve

40.

C03L-?121/11 E244 No S.I. MOV

41.

C03L-Z121/12 E245 No S.I. & Shutdown CLG. Valve*

42.

C03L-Z121/15 E244 No S.I. MOV

43.

C03L-Z121/16 E245 No

.S. I. & Shutdown CLG Valves

44.

C03L-Z143/1 E79 No S.I. Tank T8Z,B Drain

45.

C03L-Zl43/2 E79 No S.I. Tank T82A Drain

46.

C03L-Z143/3 E85-1 No S.I. Tank T82A Pres. Con tr

47.

C03L-Z143/4 E85-1.

No s.r. Tank T82A Pres. Con tr

48.

C08L-Z143/2 E87-2 No Reactor Shd. Cl~. Coil Sur

49.

C12-7L-Z143/1 E96-5 No P. C

  • Temp. 'P:cotecti ve-CHA
50.

C12-7L-Z143/2 E96-5 No P.C. Temp. Protective CHA

51.

Cl2-7L.:...Z143/3 E96-5 No P.C. Temp. Protective CHA

52.

C12-7L-Z143/4 E96-5 No P.C. Temp. Protective CHA

53.

C13-1L-Z143/l E87 No Cont. Sump. Level

54.

Cl3-3-Z143/1 E99 No Cont. Dome Humidity

55.

Cl3-3-Z143/2 E99 No.

Cont. S/G Space Humidity

56.

C 13-3-Z 143/ 4 E95-2 No Cont. Reactor Cav. Temp.

57.

C13-3-Zl43/5 E95-2 No Cont. S/G Space Temp.

58.

Cl3L-Zl43/l E93 No LPSI Flow Ind. Loop lA

59.

C13L-Zl43/2 E93 No HPSI Flow Ind. Loop lA

60.

C13L-Zl43/5 E85-2 No S.I. Tank T82A Press.

61.

Bll-Zl21/1 E228-3 No Cont. Gas Rad. Sample SV's

62.

C08L-Zl21/2 E217 No Cont. Clr. Recirc. Fan

63.

C08L-Z121/3 E217 No Cont. Clr. Recirc. Fan

64.

C02-Zl21/8 E256 No PORV 10428

65.

C02-Z121/ll

. E242 No S.D.C. MO 3015 Page 2

le.

Continued

RESPONSE

66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98.
99.

100.

101.

102.

103.

104.

105.

106.

107.

108.

109.

110.

111.

112.

113.

114.

115.

116.

117.

118.

119.

120.

Circuit No.

C02-Z121/12 C03L-Z121/5 C03L-Z121/6 C08-Z121/2 C08L-Zl21/5 C33L-Z121/1 Cll-5-2141/1 Cll-5-2141/4 Cll-5L-2141/2 C12-2143/1 C12-3-J215/1 C12-3-Z121/1 C12-3L-2141/1 C12-4-2143/1 C13-1L-2143/2 C13-3-2121/1 C13-3-2121/2 B06-U110/1 C02-2121/9 C03L-2121/10 C03L-2121/13 C03L-2121/14 C08L-2121/1 C08L-Z121/4 C03L-Z143/5 C03L-Zl43/6 C03L-2121/11 C03L-Z121/12 C03L-2121/15 C03L-2121/16 C08-2121/2 C08L-Z121/1 C08L-Z121/2 C08L-Z121/3 C08L-Z121/4 C08L-Z121/5 C33L-2121/1 010-Zlll/1 010-Zlll/2 010-Zlll/3 010-2111/4 N47-Z14l/1 Cll-5-2141/5 010-Zlll/1 010-Zll,1/2 010-Zlll/3 010-2111/4 N47-Z141/1 A21-Zlll/2 A22-Z111/1 A22-Zlll/2 BOl-Zlll/1 BOl-2111/2 B02-Zll1/1 B03-2111/1 Scheme Dwt; *.

E~42 E85 E85 E217 E239 E217 E227, Sht. 2 E227, Sht. 2 E227, Sht. 2 E78 E84, Sht. 4 E84, Sht. 4 E59 E87, Sht. 2 E92 E84, Sht. 4 E99 El71 E245 E245 E245 E245 E217 E239 E85 E85 E244 E245 E244 E245 E240 E12 & E217 E12 & E217 E12 & E217 E239 E239 E12 & E217 E184 E184 E184 & E609 E184 & E609 E292 E227, Sht. 2 E184 E184 E184, E609 E184, E609 E292 E10 & E183 ElO & E183 E10 & E183 E244 E244 E186 E218 Page 3 Assoc. Ckt.

  • No No No No No No No No No No No No No No No No No No No No No No No No No No No
  • No No No No No No No No No No No No No No No No No No No No No No No No No No No No Function Press. Relief Isac.MO 1042/

S.I. Tank T82A Press.

S.I. Tank T82B Press.

Cont. Clr. Recirc. Fan V4A Sh. Clg. Wtr. Valve Cont. Clr Recirc Fan V4A Personal Air Lock Rad Mon Air Rm. Rad Mon.

Cont.

Isol~ Rad Mon.

WRSGL R.V. Diff. Pres.

Reactor Vessel Diff. Pres.

Power CH #5 Instr. Cont.

RX Vessel Level S.I. Tank T82A Level R.V. Oiff.

Pres.

RX Cavity Humidity Welding Outlets S.I. Tank T82A Valves S.I. Tank T82B Valves S.I. Tank T82B Valves S.I. Tank T82B Valves Cont. Clr Recirc Fan V4A Shld. Clg. Wtr. Vlv. Ind.

S.I. Tank T82B Pres. Cont.

S.I. Tank T82B Pres. Cont.

S.I. HP Vlv MO 3013 S.I. TK T82A Valves S.I. HP Vlv MO 3013 S.I. TK T82A Valves Shld. Clg. Surge Tk.M.U. Vl Cont. Clr. Recirc. Fan V4A Cont. Clr. Recirc. Fan V4A Cont. Clr. Recirc. Fan V4A Comp. Clg. S.O. Hx Valves Comp. Clg. S.D. Hx Valves Cont. Clr. Recirc. Fan V4A O.C. Oil Lift Pump P81A O.C. Oil Lift Pump P81A D.C. Oil Lift Pump P81C O.C. Oil Lift Pump P81C Annunciation F.H. Area Rad. Mon.

PCP DC Oil Lift Pump PCP DC Oil Lift Pump PCP DC Oil Lift Pump PCP DC Oil Lift Pump Annunciation PCP P50A PCP P50B CT. Circuit PCP P50B S~I. LP Valve MO 3007 S.I. LP Valve MO 3008 PCP Backstop Pump Cont. Clr. Recirc. Fan VlB

le., Continued e

e

RESPONSE

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function 121.

B03-Zl11/2 E218 No Cont. Clr. Recirc. Fan V3B 122.

B03-Zl11/3 E185 No PCP Oil Lift Pump 123.

B04-Z111/l E185 No PCP Oil Lift Pump 124.

B05-Z112/1 E283 No CRDM Clg. Fan V49A 125.

B10-Zl11/1 E283 No CRDM Clg. Fan V49B 126.

Bll-Zl21/1 E228, Sht. 3 No Cont. Gas. Rad. Sample SV' 127.

C02-Z121/1

.E254 No Pzr. B.U. Htr. Bank Cont.

128.

C02-Zl21/2 E254 No Pzr. Proper Htr. Control 129.

C02-Zl21/3 E254 No Pzr. B.U. Htr. Bank Cont.

130.

C02-Zl21/4 E236 No Chrg. Dist. Line Stop Valv 131.

C02-Z121/5 E85, Sht. 1 No S.I. Tank T82A Pres. Cont.

132.

C02-Z121/6 E253, Sht. 2 No Pzr. Spray Vlv. Ind.

133.

C02-Z121/7 E236 No Letdown Orifice Bypass Sto 134.

C02-Z121/9 El69 No Evac. Siren 135.

C02-Z121/10 E256 No Pzr. Pwr. R.V.

136.

C02-Z121/11 E242 No S.D. Clg. Vlv. MO 3015 137.

C02-Z121/12 E242 No Pzr. Relief Isol. Vl.M0104 138.

C03L-Z121/1 E244 No s.I. LP Valve MO 3007 139.

C03L-Z121/2 E244 No s.I. LP Valve MO 3008 140.

C03L-Z121/3 E244 No S.I. LP Valve MO 3010 141.

C03L-Z121/4 E244 No S.I. HP Valve MO 3009 142.

C03L-Z121/5 E85, Sht. 1 No S.I. Tank T82A Pres. Cont.

143.

C03L-Z121/6 E85, Sht. 1 No s.I. Tank T82B Pres. Cont.

144.

C03L-Z121/7 9E24 No S.I. Tank T82A Disch.M0304 145.

C03L-Z121/8 9E24 No s.I. Tank T82B Disch.M0304.

146.

C03L-Z121/9 E245 No SITK T82A Valves 147.

A21-Z103/l ElO &. E183 No Primary Coolant Pump P50C 148.

A21-Z103/2 ElO &. E183 No Primary Coolant Pump P50C 149.

A21-Z105/1 ElO &. E183 No Primary Coolant Pump P50A 150.

A21-Z.105/2 ElO &. E183 No Primary Coolant Pump P50A 151.

A12-Z108/1 E12 &. E253 No Pzr Htr XFP FDR 152. *A13-Z107/1 E12 &. E253 No Pzr Htr XFO FDR 153.

B01-Zl11/l E244 No S.I. HP Vlv MO 3007 154.

B01-Z111/2 E244 No s.I. LP Vlv MO 3008 155.

B01-Z112/l E244 No S.I. LP Vlv MO 3010 156.

B01-Z112/2 E244 No s.I. HP Vlv MO 3009.

157.

B01-Zll2/3 E244

.No S.I. HP Vlv MO 30H 158.

B01-Z112/4 E242 No S.D. Clg. Vlv. MO 301&

159.

B01-Zl12/5 E242 No Pzr. Relief Iso. Vl. M0104:

160.

B01-Z112/6 E244 No s.I. HP Vlv MO 3013 161.

B03-Z111/1 E218 No Cont. Clr. Recir. Fan VlB 162.

B03-Zlll/2 E218 No Cont. Clr. Recir. Fan V3B 163.

B03-Z111/3 E185 No Oil Lift Pump P80A 164.. B03-Z112/1 E218 No Cont. Clr. Recir. Fan V2B 165.

B03-Z112/3 E185 No Oil Lift Pump P80B 166.

B04-Zlll/1 E185 No Oil Lift Pump P80C 167.

so4:..z112/1

  • E185

. No Oil Lift Pump P80D 168.

B04-Z112/2 E218 No Cont. Clr. Recir. Fan V4B 169.

B07-Z112/1 E186 No Back Stop Pump P84A 170.

Bll-Zll0/1 E12 &. E217 No Cont. Clr. Recir. Fan V4A 171.

Bl3-Z109/l

.El2 &. E134 No M.C.C. #9 FDR 172.

B1304A-Z109/1 E134, E1014 No MCC #9 FDR 173.

DlO-Zlll/1 E184 No Oil Lift Pump P81A 174.

DlO-Zlll/2 E184 No Oil Lift Pump P81A 175.

DlO-Zlll/3 El84 &. E609 No Oil Lift Pump P81C 176.

Dl0-2111/4 E184 &. E609 No Oil Lift Pump P81C 177.

Dl0-2121/1 E184 No Oil Lift Pump P81A 178.

Dl0-2121/2 E184 &. E609 No Oil Lift Pump P81C Page 4

e le.

Continued

RESPONSE

Circuit No.

Scheme Dwg.

Assoc. Ckt.

Function 179.

D20-Z112/1 E184 No Oil Lift Pump P81B 180.

D20-Zl12/2 E184 No Oil Lift *Pump P81B 181.

D20-Z112/3 E184 No Oil Lift Pump P81D 182.

D20-Z112/4 E184 No Oil Lift Pump P81D 183.

D20-Z121/1 E184 No Oil Lift Pump P81B 184.

D20-Z121/2 E184 No Oil Lift Pump P81D 185.

C11A-Z142/1A E1015 No PRV Monitor 186.

C11A-Z142/1B E1015 No PRV Monitor 187.

CllA-Zl42/1C E1015 No PRV Monitor 188.

C11A-:-Z142/1D El015 No PRV Monitor 189.

C11A-Zl42/1E El015

. No PRV Monitor 190.

Z143-C12/8 E84, Sht. 6 No Pzr Pres. Ms mt & Cont CHA 191.

C12-4-Z142/1 E141 No PCP Vibration Mon. P50A 192.

C12-4-Z142/2 E141 No PCP Vibration Mon. P50A 193.

C12-4-Z142/3 E141 No PCP Vibration Mon. P50B 194.

C12-4-Zl42/4 E141 No PCP Vibration Mon. P50B 195.

A22-Zl01/l ElO & E183 No PCP P50B 196.

A22-Zl01/2 ElO & E183 No PCP P50B

'197.

A22-Z104/1 ElO & E183 No PCP P50D 198.

A22-Zl04/2 ElO & E183 No PCP P50D 199.

Cll-5L-Z141/3 E227, Sht. 2 No Cont. Isol. Rad. Mon 200.

C12-2L-J523/l E84-2 No Per Pres. s.I. Ch 3 201.

C12-2L-Z143/6 E82, Sht. 4 No Press Level Channel C 202.

C12-2L-Z146/1 E96, Sht. 4 No Pri. Coolant Flw Chan

  1. 3 203.

C12-2L-Z146/2 E96, Sht. 4 No Pri. Coolant Flw Chan

  1. 3 204.

C12-2L-Z146/3 E96, Sht. 4 No Pri. Coolant Flw Chan*

  1. 3 205.

C12-2L-Z146/4 E96, Sht. 4 No Pri. Coolant Flw Chan

  1. 3 206.

C12-7L-Z146/1 E96, Sht. 5 No Pri. Sys. Temp. Prot. Chan<

207.

C12-7L-Z146/2 E96, Sht. 5 No Pri. Sys. Temp. Prot. Chant 208.

C12-7L-Z146/3 E96, Sht. 5 No Pri. Sys. Temp. Prot. Chant 209.

C12-7L-Z146/4 E96, Sht. 5 No Pri. Sys. Temp. Prot. Chant 210.

C12L-Z146/1 E78 No Steam Gen. E-50A Lo. Level 211.

C12L-Z146/2 E78 No Stearn Gen. E-50B Lo. Level 212.

Cl2L-Z146/3 E83 No Steam Gen. E-50A Lo. Press 213.

C12L-Z146/4 E83 No Steam Gen. E-50B Lo. Press 214.

C13-1L-Z146/1 E92 No Saf. Inj. Tk T82B Lev. Ind.

215.

C13L-Z143/3 E93 No LP Saf. Inj. Flw Ind. Lp lE 216.

C13L-Z143/4 E93 No HP Saf. Inj. Flw Ind. Lp 1E 217.

C13L-Z143.6 E85, Sht. 2 No Saf. Inj. Tk T82B Press Ind 218.

C06-1L-Z141/1 E59 No Pwr. Ch;#l Nuclear Inst.

219.

C06-1L-Z141/2 E59 No Pwr. Ch.#1 Nuclear Inst.

220.

C06-1L-Z141/3 E59 No Pwr. Ch.#1.Nuclear Inst.

221.

C06-1L-Z141/4 E59 No s.u. Ch. #1 Nuclear Instr.

222.

C06-1L-Z 141 /5 E59 No s.u. Ch. #1 Nuclear Instr.

223.

C06-1L-Zl41/6 E59 No s.u. Ch. #1 Nuclear Instr.

224.

C06-3-Z143/1

  • E226 No.

Sec. Rod Pos. Sys.

225.

C06-3-Z143/2 E226 No Sec. Rod Pos. Sys.

226.

C06-3-Zl43/3 E226 No Sec. Rod Pos. Sys.

227.

C06-3-Z143/4 E226 No Sec. Rod Pos. Sys.

228.

C06-3-Z143/5 E226 No Sec. Rod Pos. Sys.

229.

C06-3-Zl43/6 E226 No Sec. Rod Pos. Sys.

230.

C06-3-Z 143 /7 E226 No Sec. Rod Pos. Sys.

231.

C06-3-Z143/8 E226 No Sec. Rod Pos. Sys.

232.

C06-3-Z143/9 E226 No Sec. Rod Pos. Sys.

233.. C06-3-Z143/10 E226 No Sec. Rod Pos. Sys.

234.

C06-3-Z143/ll E226 No Sec. Rod Pos. Sys.

Page 5

e e

... le.

Continued

RESPONSE

Circuit No.

Schene Dwg.

Assoc. Ckt.

  • Function 235.

C06-3-Z143/12 E226 No Sec. Rod Pos. Sys.

236.

C06-3-Z143/13 E226 No Sec. Rod Pos. Sys.

237.

C06-3-Z143/14 E226 No Sec. Rod Pos. Sys.

238.

C06-3-Z143/15 E226 No Sec. Rod Pos. Sys.

239.

C06-3-Z143/16 E226 No Sec. Rod Pos. Sys*.

240.

C06-3-Z143/17 E226 No Sec. Rod Pos. Sys.

241.

C06;...3-Z143/18 E226 No Sec. Rod Pos. Sys.

242.

C06-3-Z143/19 E226 No Sec. Rod Pos. Sys.

243.

C06-3-Z143/20 E226 No Sec. Rod Pos. Sys.

244.

C06-3-Z143/21 E226 No Sec. Rod Pos. Sys.

245.

C15-Z143/1 E226 No RDM.Reed Limit Switches 246.

C15-Z143/2 E226 No RDM Reed Limit Switches 247.

C15-Z143/3 E226 No RDM Reed Limit Switches 248.

C15-Z143/4 E226 No RDM Reed Limit Switches 249.

C15-Z143/5 E226 No RDM Reed Limit Switches 250.

C15-Z143/6 E226 No RDM Reed Limit Switches 251.

C15-Z143/7 E226 No RDM Reed Limit switches 252.

C15-Z143/8 E226 No RDM Reed Limit Switches 253.

C15-Z143/9 E226 No RDM Reed Limit Switches 254.

C15-Z143/10 E226 No RDM Reed Limit Switches 255.

C15-Z143/11 E226 No RDM Reed Limit Switches 256.

C15-Z143/12 E226 No RDM Reed Limit Switches 257.

C15-Z143/13 E226 No RDM Reed Limit Switches 258.

C15-Z143/14 E226 No RDM Reed Limit Switches 259.

C15-Z143/15 E226 No RDM Reed Limit Switches 260.

C06-3-Z146/1 E226 No Sec. ~od Pos. Sys.

261.

C06-3-Z146/2 E226 No Sec. Rod Pos. Sys.

262.

C06-3-Z146/3 E226 No Sec. Rod Pos. Sys.

263.

C06-3-Z146/4 E226 No Sec. Rod Pos. Sys.

264.

C06-3-Z146/5 E226 No Sec. Rod Pos. Sys.

265.

C06-3-Z146/6 E226 No Sec. Rod Pos. Sys.

266.

C06-3-Z146/7 E226 No Sec. Rod Pas. Sys.

267.

C06-3-Z146/8 E226 No Sec. Rod.Pos. Sys.

268.

C06-3-Z146/9 E226 No Sec. Rod Pas. Sys.

269.

C06-3-Z 146/10 E226 No Sec. Rod Pas. Sys.

270.

C06-3-Z146/11 E226 No Sec. Rod Pos. Sys.

271.

C06-3-Z146/12 E226 No*

Sec. Rod Pos. Sys.

272.

C06-3-Z146/13 E226 No Sec. Rod Pos. Sys.

273.

C06-3-Z146/14 E226 No Sec. Rod Pos. Sys.

274.

C06-3-Z146/15 E226 No Sec. Rod Pos. Sys.

275.

C06-3-Z146/16 E226 No Sec. Rod Pos. Sys.

276.

C06-3-Z146/17 E226 No Sec. Rod Pos. Sys.

277.

C06-3-Z146/18 E226 No Sec. Rod Pos. Sys.

278.

C06-3-Z146/19 E226 No Sec. Rod.Pas. Sys.

279.

C06-3-Z146/20 E226 No Sec. Rod Pos. Sys.

280.

C06-3-Z146/21 E226 No Sec. Rod Pos. Sys.

281.

C06-3-Z146/22 E226 No Sec. Rod Pos. Sys.

282.

C06-3-Z146/23 E226 No Sec. Rod Pos. Sys.

283.

C06-3-Z146/24 E226 No Sec. Rod Pos. Sys.

284.

C06-1L-Z142/1 E59 No Saf. Ch.#3 Nuclear Instr.

285.

C06-1L-Z142/2 E59 No Saf. Ch.#3 Nuclear Instr.

286.

C06-1L-Z142/3 E59 No Saf. Ch.#3 Nuclear Instr.

287.

C06-1L-Z142/4 E59 No Log Ch. #1 Nuclear Instr.

288.

C06-1L-Z142/5 E59 No Log Ch. #1 Nuclear Instr.

289.

C06-1L-Z142/6 E59 No Log ch. #1 Nuclear Instr.

290.

C06-1L-Zl42/7 E59 No Log Ch. #1 Nuclear Instr.

291.

C15-Z143/16 E226 No RDM Reed Limit Switches Page 6

e le.

Continued

RESPONSE

Circuit No.

Scheme Dwg.

Assoc. Ckt.

  • Function 292.

C15-Z143/17 E226 No RDM Reed Limit Switches 293.

C15-Z143/18 E226 No RDM Reed Limit Switches 294.

C15-Z 143/ 19 E226 No RDM Reed Limit Switch~s 295.

C15-Z143/20 E226 No RDM Reed Limit Switches 296.

C15-Z143/21 E226 No RDM Reed Limit Switches 297.

C15-Z146/1 E226 No RDM Reed Limit Switches 298.

C15-Z146/2 E226 No RDM Reed Limit Switches 299.

C15-Z146/3 E226 No RDM Reed Limit Switches 300.

C15-Z146/4 E226 No RDM Reed Limit Switches*

301.

C15-Z146/5 E226 No RDM Reed Limit Switches 302.

C15-Z146/6 E226 No RDM Reed Limit Switches 303.

C15-Z146/7 E226 No RDM Reed Limit Switches 304.

C15-Zl46/8 E226 No RDM Reed Limit Switches 305.

C15-Z146/9 E226 No RDM Reed Limit Switches 306.

C15-Z146/10 E226 No RDM Reed Limit Switches 307.

C15-Z146/11 E226 No RDM Reed Limit Switches 308.

C15-Z146/12 E226 No RDM Reed Limit Switches 309.

C15-Z146/13 E226 No RDM Reed Limit Swtiches 310.

C15-Z146/14 E226 No RDM Reed Limit Switches 311.

C15-Z146/15 E226 No RDM Reed Limit Switches 312.

C15-Zl46/16 E226 No RDM Reed Limit Switches 313.

C15-Z146/17 E226 No RDM Reed Limit Switches 314.

C15-Z146/18 E226 No RDM Reed Limit Switches 315.

C15-Z146/19 E226 No RDM Reed Limit Switches 316.

C15-Z146/20 E226 No RDM Reed Limit Switches 317.

C15-Z146/21 E226 No RDM Reed Limit Switches*

318.

C15-Z146/22 E226 No RDM Reed Limit Switches, 319.

C15-Z146/23 E226 No RDM Reed Limit Switches 320; C15-Z146/24 E226 No RDM Reed Limit Switches 321.

1304A-Z109/1 E12 & E134 No MCC #9 322.

A21-Zlll/1 ElO & E183

  • No Pri. Cool. Pmp. P50A C.T.

323.

A21-Z112/1 ElO & E183 No.

Pri. Cool. Pmp. P50C C.T.

324.

A21-Z112/2 ElO & E183 No Pri. Cool. Pmp. P50C 325.

A21-Zl21/1 E186 No Back Stop Pump P83A 326.

A21-Z121/2 E186 No Back Stop Pump P83C 327.

A21-Z121/3 El86 No Back Stop Pump P84A 328.

A21-Z121/4 E186 No Back Stop Pump P84C 329.

A22-Zlll/2 ElO & E183 No Pri. Cool.Pump P50B 330.

A22-Zl12/1 E10 & E183 No Pri. Cool.Pump P50D C.T.

331.

A22-Z112/2 ElO & E183 No Pri. Cool.Pump P50D 332.

A22-Z121/1 E186 No Back Stop Pump P83B 333.

A22-Z121/2 E186 No Back Stop Pump P83D 334.

A22-Zl21/3 E186 No Back Stop Pump P84B 335.

A22-Zl21/4 E186 No Back Stop Pump P84D 336.

BOl-Zlll/l E244 No SI. HP Valve M03007 337.

BOl-Zlll/2 E244 No SI. LP Valve M03008 338.

BOl-2112/1 E244 No SI. LP Valve M03010 339.

B01-Zl12/2 E244 No SI. HP Valve M03009 340.

B01-Z112/3 E244 No sr. HP Valve M03013orM03011 341.

B01-Zl12/4 E242 No Cool.S.D. Mtr Opr M03015 Page 7

RESPONSE

342.

343.

344.

345.

346.

347.

348.

349.

350.

351.

352.

353.

354.

le.

Continued Circuit No.

BOl-2112/5 BOl-2112/6 B02-2111/1 B04-M69/1 B04-N69/1 B05-2112/1 Bl0-2111/1 B10-Z112/2 C121-Z112/1 C121-Z112/2 N47-2141/1 C33L-Z121/1 C150-C126/1 Sche:o.e DwG.

E242 E244 E186.

E282 E282 E283 E283 E283 E258 E258 E292 E12 & E217 Assoc. Ckt.

  • No No No No No No No No
  • No No No No No Function Press. Relief ISOL V.l\\101042 SI HP Valve M03013 Back Stop Pump P83A S.W. Pen. Exh. Fan S.W. Pen. Exh. Fan CRPM Clg Fan V49A CRDM Coolirtg Fan V49B Press. Shed Cool. Fn V61C Hyd. Recomb. M69B Hud. Recomb. M69B Annunciation Cont. Cooler Recirc. FnV4A Annunciation
  • All circuits listed under Section le. are electrically protected by existing fuses, circuit breakers or similiar devices and as such are not classified as associated circuits.

Page 8

ld.

Show that Fire induced failure of each of the cables listed in la, lb, le will not prevent or cause malfunction of the dedicated Shutdown System.

RESPONSE

I. Cables listed II. Cables listed Circuit C02-Zl2l/7 BOl-Zlll/4 C02-Zl21/10 CllA-Zl22/l CllA-Zl22/3 B0l-Zll2/5 C02-Zl21/12 in la:

in lb:

N/A since no cables are listed.

Function Control for CV2002 Letdown Orifice Bypass Stop Valve Power & Control to PORV-1024B & 1043B PCS Power Operated Relief Valves Power to Head Vent PRV-1067 Power to Containment Vent PRV-1071>

Power & Control M01-42A, PVC Isolation Valve Hot shorts could cause the above valves to open, but there would be no impact unless the in-series normally-closed valves were to get a concurrent hot short also (i.e., there would have to be two concurrent hot shorts which opened these series valves).

One method of preventing spurious opening of these valves is to remove the DC power system (DlO and/or Dll) on the station batteries.

This will cause these valves to fail in the safe position.

Procedures will be developed to instruct the operators to take appropriate action to control selectively such malfunctioning valves, or as a last resort to remove DC power.

C02-Zl2l/5 C12-Zl43/7 Control for E/P1057.(cv1057) & E/P1059 (cv1059)

Pressurizer Spray Valves Control for *cv2012 & CV2122.

Letdown Flow Control Valves Spurious operation of these valves would cause a perturbation in primary coolant system pressure control.

Corrective action would be to start another charging pump or to isolate letdown.

One method of preventing the spurious operation of these valves is to remove the appropriate DC power system (PlO and/or Dll) from the station batteries.

This will cause the valves to fail in a safe position.

Procedures will o.e developed to instruct the operators to take appropriate action or to remove DC power.

C08L-Zl21/1 Control for CV0867 Cont. Air Cooler V4A Service Water Inlet Spurious opening of this valve would cause an increase in service water flow.

This increase would be well within the capacity of the service water system and would not affect plant operation.

Spurious closing of this valve would reduce the heat removal from containment air.

Since there are four similar Page 9

ld.

Continued Circuit Function air coolers, Consumers :Pow.er Company does not believe that there would be four

Therefore, no corrective action is required.

B01-Z112/4 Power to M03015.

Shutdown Cooling MOVS.

It was previously committed to the NRC to check valves closed and disconnect operating power prior to pressurizing the PCS above 260 PSIG (Ref. letter from Consumers Power Company to NRC dated March 19, 1981}.

Cl2-3-Z143/2 C02-Z121/5 Control for Backup and Proportional Heater Banks If some of the pressurizer heaters came on due to hot shorts, there would be no immediate adverse affect. If this went uncorrect~d for many hours and the pressure became high enough, it would be relieved through the code safety valves.

If the heaters came on during cooldown, the cooldown would be delayed, but there would be no adverse affect.

Therefore, further action is required.

A22-Zl01/1 A22-Zl01/2 A21-Zl03/1 A2l-Zl03/2 A22-Zl04/l A22-Zl04/2 A2l-Zl05/1 A21-Z105/2 Power to PC Pumps It is not conceivable to have a hot-short with an impedance low enough to start a primary coolant pump.

A pump start requires concurrent oil lift pressure and a large amount of balanced three-phase power, neither of which would be available.

Therefore, no further action required.

Cl50-JL263/l Cl50-JL263/l E79 R79 Control for XFER Relay R0736C that isolates controls for Aux. F.W. Flow Control Control for XFER Relay R0737C that isolates controls for Aux. F.W. Flow Control In the event of damage to this equipment and the resulting inability to aper.ate the original auxiliary feedwater system from the control room, the redundant auxiliary feedwater system would be utilized.

The redundant auxiliary feedwater system utilizes the former 3rd HPSI pump.

This modification is not yet complete.

III.

Cables listed in le:

All circuits listed under Section le are electrically protected by existing fuses, circuit breakers or similar devices and as such are not classified as associated circuits.

Page 10

Ii ATTACHMENT C Consumers Power Company Palisades Plant RESPONSE TO SECTION IV.l OF ENCLOSURE 4 NRC LETTER DATED APRIL 7, 1982 July 1, 1982 2 Pages

ATTACHMENT C The following sections provide Consumers Power Company's response to Section IV.l of Enclosure 4 of NRC letter dated April 7, 1982.

Section IV.l of this enclosure addresses instrumentation that must be provided in. the event of a fire in Areas l - 4.

A.

Source Range Flux Monitor - A drawer with a power supply will be installed in the auxiliary shutdown panel, such that in the event of a fire in areas 1-4, the control room startup channel will be dis-connected in the penetration room from the detector and the auxiliary shutdown panel instrument connected to become operable.

B.

Steam Generator Pressure -

As stated in the letter from Consumers Power Company to NRC dated February l6, 1982, we feel thatusing PCS cold leg temperature to infer steam generator temperature and hence pressure is adequate to meet the requirements of Appendix R.. Steam generator pressure is not a process variable necessary to be monitored or controlled to remove heat as opposed to steam generator level which is a variable that directly affects the ability of the steam generators to remove heat.

With regard to detecting disturbances to the steam generators due to the fire, this will first be detected by the operators audibly and visually.

C.

Pump Flow Rates:

i.

Charging Pumps - The flow instrument, FI-02l2, for charging has a local indicator that does not require power and will be operable in the event of a fire.

The indicator is located in the hallway outside of the charging pump rooms.

Likewise, there is a local pressure indicator in the hallway, PI-02l2, that indicates the charging pump discharge pressure.

ii. Service Water Pumps-There are presently no flow indicators for service water pump flow.

Pump performance is measured by using local indicators to record the discharge pressure and comparing this to a graph that gives discharge pressure limits vs the inlet temperature.

It is proposed that the procedures for operator guidance in the event of a fire give limits for service water

  • pump discharge pressure as indicated at the pumps that would verify adequate flow and pump performance.

iii.

Component Cooling Pumps -

Component cooling pump flow is not measured at Palisades.

Pump differential pressure is used for surveillance testing to deteriil.ine pump performance.

Since the requirement to provide instruments for component cooling pump flow is to assure flow to the shutdown cooling heat exchangers, monitoring the component cooling flow through the shutdown heat exchangers would meet this requirement.

The local instrument FI-0938, which is a bypass Rotameter that will operate in event of a fire in areas 1-4, measures the flow through the shutdown cooling heat exchangers.

This can be put into service by opening the two manual isolation valves.

This meets the requirements of Appendix R.

r ATTACH:MENT C (Continued) 2 D.

Tanks Levels:

i.

BAT (concentrated Boric Acid Tanks)- In correspondence from Consumers Power Company t'o the NRC dated February 16, 1982, a response was made as to why a BAT level was not necessary.

In summary, a Boric Acid Tank Level is not necessary s*ince both tanks are always kept full and the contents of one tank is more than adequate to provide the shutdown margin necessary to go to cold shutdown.

The entire contents would be injected within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of reactor shutdown and verified by boron sample.

The instrument to fulfill the Appendix R requirement to monitor and control reactivity is the source range flux monitor.

Also, as the NRC noted, either the Boric Acid Tanks of the SIRW tank (see next item) can be used to provide the required margin to criticality.

ii.

SIRW Tank -

An instrument indicating SIRW level will be installed at the auxiliary shutdown panel.

iii.

Component Cooling System Surge Tank - A local indicator, LG-0916 is available at the tank to provide tank level.

It is realized that the indicators for the Charging Pumps, Service Water Pumps, Component Cooling Flow, Boric Acid Tanks and the Component Cooling Surge Tank are local indicators and will. require extra operator effort to use as opposed to instruments located at the auxiliary shutdown panel.

This is believed to be acceptable because all the above, except charging flow, are not immediately used during a fire.

The Boric Acid injection is not necessary until.cooldown starts, and the others are not necessary until the reactor cooling is transferred to the shutdown cooling system.

Thus, these local gauges are not an additional burden to the operators during the time immediately after the fire is discovered when the plant is being put in the stable condition.

/

I

ATTACHMENT D Consumers Power Company Palisades Plant EXEMPTION REQUEST July 1, 1982 1 Page

,II 't""". p;'

.e ATTACHMENT D EXEMPTION REQUEST 10 CFR 50 Appendix R Section III G.3 contains the requirement that a fire detection and a fixed fire suppression system be installed in fire areas requiring alternative or dedicated shutdown capabilities.

Consumers Power Company has concluded that the requirement for a fixed fire suppression system for the Palisades Plant control room, a designated fire area, is unnecessary for the following reasons:

l.

Control Room Staffing.

The Palisades Plant control room is manned continuously by a minimum crew of at least two licensed operators 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> a day during-normal Plant operations.

Each of these operators is_ trained in dealing with possible control room fires.

2.

Fire Suppression and Detection Equipment.

The Palisades Plant control room contains eight (8) smoke detectors, distributed throughout the control room and adjacent offices. It also contains one fire hose in the viewing galYery, one portable water fire extinguisher and two portable co2 fire extinguishers.

Consumers Power Company believes that these fire safety features coupled with the minimum control room crew of two licensed operators are sufficient to safely contain a control room fire.

3.

Previous SER Approval.

NRC letter dated September 1, 1978 provided a Safety Evaluation Report (SER) which summarized the results of the NRC's evaluation of the fire protection program at the Palisades Plant.

Section 5.1.6 of this SER contained a description of modifications to be made to the Palisades control room, a designated fire area, in order for it to conform to the provisions of Appendix A to Branch Technical Position 9.5-1.

The aforementioned modifications were implemented, thus bringing the Palisades control room up to the required fire protection standards.

Based on the hereinbefore stated reasons, Consumers Power Company does not consider a fixed fire suppression system necessary for the Palisades Plant control room and hereby requests an exemption from such a requirement.

Retrieved from "https://kanterella.com/w/index.php?title=ML18047A425&oldid=5023941"