ML20072K955

Proposed Tech Specs Increasing Max Flow Rate for Centrifugal Charging Pumps

ML20072K955
Person / Time
Site:	Mcguire, McGuire
Issue date:	03/24/1983
From:	DUKE POWER CO.
To:
Shared Package
ML20072K918	List: ML20072K910 ML20072K955
References
TAC-49980, TAC-49981, NUDOCS 8303310062
Download: ML20072K955 (23)

Text

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' Attachment 1 1

McGuire Nuclear Station Units'I and 2 Proposed Revision to Technical Specifications Concerning Maximum Centrifugal Chargf.ng Pumps Flow Rate Included: (a) Technical Specifications page 3/4 5-8 tevised (b) Discussion and Justification for Proposed Revision 4

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• _ ......,._.__--.-.._ , _ , _ _ _ _ _ _ _ _ , _ , _ _ _ _ _ . _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _'?

EMERGENCY CORE COOLING SYSTEMS

' SURVEILLANCE REQUIREMENTS (Continued)

2) At least-once per 18 months.

Boron Injection Safety Injection Throttle Valves Throttle Valves Valve Number Valve Number NI-480 NI-488 NI-481 NI-489 NI-482 -

NI-490 NI-483 NI-491

n. By performing a flow balance test, during shutdown, following completion of modifications to the ECCS subsyttems that alter the subsystem flow characteristics and verifying that:

1) For centrifugal charging pump lines, with a single pump running: ,

a) The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 345 gpm, and b) The total pump flow rate is less than or equal to 565 gpm.

2) For Safety Injection pump lines, with a single pump running:

a) The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 462 gpm, and b) The total pump flow rate is less than or equal to 660 gpm.

3) For RHR pump lines, with a single pump running, the sum of the injection line flow rates is greater than or equal to 3975 gpm.

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McGUIRE - UNITS 1 and 2 3/4 5-8 l

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Discussion and Justification for Proposed Revision l

, During preoperational ECCS flow balance testing for McGuire Unit 2, it was discovered that the requirement of Technical Specification 4.5.2.h.1).a) could only be met by allowing one pump to exceed the 550 gpm limit of Technical Specification 4.5.2.h.1).b). This flow rate was established as the maximum due to the unavailability of data for the Net Positive Suction Head Required (NPSHR) at flow rates greater than 550 gpm. One' pump at McGuire was operated satisfactorily,

however, at about 564 gpm.

To verify the acceptability of the higher flow rate, additional tests were performed by the manufacturer, Pacific Pumps. Using a spare rotating assembly, the NPSHR was determined for flow rates up to 588 gpm. Below about 575 gpm, the NPSHR was 21 feet or less. At about 575 gpm, the NPSHR increased abruptly.

The high flow operating conditions of concern in the Technical Specifications is the requirement to operate the centrifugal charging pump during a large size LOCA.

In such an accident, it is calculated that the reactor coolant pressure will decrease rapidly to near zero allowing all of the operating ECCS pumps to run out to their maximum injection flow rates. If only one charging pump operates under this condition, the pump will run out to the highest flow allowed by the piping flow resistance and backpressure while the available NPSH is a minimum due to the high pressure drop in the suction line caused by all other ECCS pumps operating simultaneously. Calculations show that the minimum available.NPSH is 45 feet for this condition and with the Refueling Water Storage Tank (RWST) at low level.

1 l Based upon the testing described above, Pacific Pumps concluded that the centrifugal charging pumps can run for a limited time (about 3 days) at 565 gpm with a minimum NPSH of 45 feet and 1000F water temperaturc. Under these conditions only a small amount of incipient cavitation would be expected which would not compromise the integrity nor the operability of the pump. The limited time of about 3 days for operation at these conditions is acceptable because operation approaching these conditions would be encountered only while injecting into a depressurized system with all ECCS pumps operating and the RWST at the minimum level. After switchover to recirculation mode, the Residual Heat Removal (RHR) pumps provide suction to the Centrifugal Charging Pumps with an available NPSH of 184 feet.

Three days was chosen as an arbitrary time limit because it is conservative for acceptable pump operation and it clearly bounds any required operating time at the maximum flow.

! This amendment has been reviewed and determined to have no adverse safety or environmental impact.

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. Attachment 2 McGuire Nuclear Station Units 1 and 2 Proposed Revision to Technical Specifications to Correct Typographical Errors Pages 3/4 8-20 21 24 27 28 34 38 45 49 56 57-59 60 66 l 68 71 72 l

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TABLE 3.8-la

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g UNIT 1 CONTAIDetENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES

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E TRIP SETPOINT OR RESPONSE tl'" CONT. RATING TIME DEVICE Nt2BER & LOCATION (AMPERES) (SECONDS) SYSTEM POWERED g 1. 6900 VAC-Swgr gy I

, m Primary 8kr-RCPIA 5.0 1.4 0 25A Reactor Coolant Pump 1A Backup Brk-1TA-5 5.0 #. 5 -1~, - 1.5 0 20A Primary 8kr-RCP18 5.0 /4'f -14 e 1.4 9 25A Reactor Coolant Pump 18 Backup Brk-1TB-5 5.0 /4. 4 15 1.5 9 20A I

Primary Skr-RCPIC 5.0 /E'/ 14 + 1.4 0 25A Reactor Coolant Pump IC t'

Backup Brk-1TC-5 5.0 /4.s 1.5 9 20A '

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! T Primary 8kr-RCP1D 5.0 /E Y 14 - 1 4 0 25A Reactor Coolant Pump ID l

8 8acku> Brk-1TD-5 5. 0 /4.5 G& ,31.5 9 20A ,

2. 600 VAC-NCC i 1EMXA-2 ID

Primary 8kr 20 45 e 60A NC Pump IC Thermal Barrier Backup Fuse 20 N.A. Dutlet Auto Isol Viv IKC345A

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IEMXA-2 IE Primary 8kr 20 45 9 60A NC Pump 1A Thermal Barrier i

Sackup Fuse 20 N.A. Outlet Auto Isol Viv IKC394A _

IEMMA-2 2A '

Primary Bkr 20 45 9 60A Cont Air Return Fan IA Daaper Backup Fuse 20 . N.A. IRAF-D-2 > '

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,/ TABLE 3.8-la (Continued)

' EI UNIT 1 CONTAINMENT PENETRATION CON 00CTOR OVERCURRENT PROTECTIVE DEVICES t 1

' 'e E TRIP SETPOINT OR RESPONSE 4 CONT. RATING TIME DEVICE NUMBER & LOCATION (AMPERES) (SECON05) SYSTEM POWEREO '

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i [ 2. 600 VAC-MCC (Continued)

'l 1EMMA-2 28 Primary 8kr 20 45 9 60A N2 to Prt Cont Isol Inside ,

Backgn Fuse 20 N.A. Viv INC54A IEMMA-2 2C Primary Skr 20 45 9 60A RCP Mtg Brg 011 Fill Isol Backup Fuse 20 N.A. Viv INC196A ,

on .1EMMA-2 3A

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4 Primary dkr 30 45 9l90A Accumu ator IA Disch Isol

? Backup Fuse 30 N. A. ' Viv 1 4A "

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j Primary Skr 30 45 9 90A Accumulator 1C Disch Isol i

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Backup Fuse 30 N.A. Viv1h6A '

1EMXA-2 3C Primary 8kr 20 45'9 60A Test H r Inside Cont Isol Backup Fuse 20 N.A. Viv 1 SA

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m UNIT 1 CONTAlletENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES j  ;

E TRIP SETPOINT OR RESPONSE

.,' Q CONT. RATING TINE i DEVICE IR8SER & LOCATION (AMPERES) (SECONDS) SYSTEM POWEREO i lil

{ 2.

f 600 VAC-MCC (Continued) j j' " 1EMXA-3 4A i "

Primary 8kr 20 45 9 60A H2 Skimmer Fan 2A Suction Backup Fuse 20 N.A. Isol Viv IVX1A

! 1EMMA-3 58  :

Primary Bkr 20 45 9 60A RCOT Pump Disch Cont Isol j

w Backup Fuse 20 N.A. Viv IWL2A 1

a. IEMXA-3 SC l- 4 Primary Skr 20 RCOT Vent Cont Isol Viv

• Backup Fuse 20 459f0A N.A. 1WL39A IEMXA-3 6A I

Primary Skr 20 45 8 60A R8 Sump Pump Disch Cont Isol Backup Fuse 20 N.A. Viv 1WL64A

! IEMXA-3 68 Primary 8kr 20 45'O 60A Cont Vent Unit Condensate Backup Fuse 20 N.A. Cont Isol Viv IWL321A IEMX8-4 18 Primary 8kr 20 45 9 60A NC Pump 18 Thermal Barrier Backup Fuse 20 N.A. Outlet Auto Isol Viv IKC3648 IEMX8-4 1C

• Primary 8kr 20 45 9 60A NC P Thermal Barrier Backup Fuse 20 N.A. Auto Iso Viv IKC4138

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I TA8tE 3.8-la (Continued) g UNIT 1 CONTAll8ENT PENETRATION CONOUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETPOINT 08 RESPCNSE t

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'a CONT. RATING TIld i OEVICE NUMER & LOCATION (AMPERES) (SECONOS) SYSTEM POWEREO

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IEd1A Primary Bkr 20 45 0 60A H2 Purge Exhaust Cont Vessel i

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Primary Skr 20 45 H2 Skimmer Fan 18 Suction Backup Fuse 20 N.A. Isn1 Viv IVX28 ' ' '

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! IEMXC-1A i- Primary kr 200 250 0 600A Lower Containment Cooling i Backup Fuse 200 - N.A. Unit No. lA '

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Primary Skr 256 9 600A Lower Containment Cooling

' 8ackup Fuse N.A. Unit No. IC IEMXC-3C Primary Skr 100 110 0 300A Control Rod Drive Vent fan Backup Fuse @/po N.A. No. 1A

,1EMXC-30 -

Primary Skr 100 110 9 300A Control Rod Drive Vent Fan Backup Fuse 100 N.A. No. IC D.

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, c 5; UNIT 1 CONTAlletENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES l

l , E TRIP SETPOINT OR RESPONSE I  ; Q CONT. RATING TIME i , OEVICE NtseER & LOCATION (AMPERES) (SECON05) SYSTEM POWEREO l ' "

i l 3 2. 600 VAC-MCC (Continued)

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IEMXC-60

, Primary Skr 90 110 0 270A Hydrogen Skimmer Fan

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Primary 8kr I 30 45 9 90A Upper Cont Return Air Fan Backup Fuse 30 N.A. No. IC

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i TABLE 3.8-la (Continued) g UNIT 1 CONTAll#4ENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES I

• e E TRIP SETPOINT OR NESPONSE Q CONT. RATING TIME DEVICE lRBBER & LOCATION (AMPERES) (SECONOS) SYSTEM POWERED

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i g 2. 600 VAC-MCC (Continued)

" 1MXM F4D

Primary Skr 100 110 0 300A Welding Feeder Backup Fuse 100 N.A.

IMXM F5C, -

Primary 8kr Ice cond Floor Cooling i 50 110 8 150A Backup Fuse- 50 N.A. Defrost Heater @

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J, Primary Skr 60 110 ejli,JA - Reactor Coolant Drain Tank

• Backup Fuse 60 N.A.

Pump 1A -

IMXM F7A Primary 8kr 20 45 e 60A Ice Cond AHU 1A9 Blower A Backup Fuse 20 N.A.

l IMXM F78 Primary 8kr 20 45 8 60A Ice Cond AHU 1A10 Blower A Backup Fuse 20 N.A.

IMXM F7C Primary 8kr 30 45 9 90A Lower Cont Aux Charcoal Filter Backup Fuse 30 N.A. Fan IA 1MXM F8A -

Primary Skr 20 45 8 60A Ice Cond AHU 1A11 Blower A Backup Fuse 20 N.A.

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TABLE 3.8-la (Continued) 4 UNIT 1 CONTAIMIENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETPOINT OR RESPONSE Q CONT. RATING TIME .

DEVICE IR88ER & LOCATION (AMPERES) (SECONDS) SYSTEM POWERED

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2. 600 VAC-MCC (Continued) 4 1MXM R78 20 45 9 60A Incore Inst Drive 1A

- PrimarySkr/ 20 N.A.

pa d wp F W Jt. /

IMXM R70 Primary Skr 20 45 9 60A Ice Cond AHU 1812 Backup Fuse 20 N.A.

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c. Primary Bkr 20 45 9 60A Ice Cond AHU 1813 Blower A O Backup Fuse 20 N.A. l IMXM 7 Primary 8kr 20 45 @ 69A Backup Fuse 20 N.A.

IncoreInstDriveJ( 78 IMXM R80 . . b Primary 8kr 20 45q)60A Ice Cond AHU 1814 Blower A Backup Fuse 20 HJA.

IMXM R8E -

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I TABLE 3.8-la (Continued)

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% UNIT 1 CONTAlle4ENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETP0 INT OR RESPONSE Q

• CONT. RATING TINE i DEVICE NISBER & LOCATION (ANPERES) (SECONOS) SYSTEM POWERED i

2. 600 VAC-MCC (Continued)

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1MXN-R3A

Primary 8kr 20 45 9 60A Ice Cond AHU 183 Blower 8 Backup Fuse 20 N.A. .

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{m TABLE 3.8-la (Continued) i E UNIT 1 CONTAINMENT PENETRATION CONDUCTOR OVERCUR9ENT PROTECTIVE DEVICES E TRIP SETPOINT OR RESPONSE U CONT. RATING TIME

, DEVICE NUMBER & LOCATION (AMPERES) (SECONOS) SYSTEM POWERED

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2. 600 VAC-MCC (Continued) ,

MXN-R58 Primary Skr 20 45 9 60A Control Room Area Duct

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Primary Bkr 20 45 9 60A NC Pump Motor Drain Tank Backup Fuse 20 N.A. Pump No. 1 I INXNA-3D Primary Bkr 20 45 9 60A Ice Cond Equip Access Door IB

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Primary 8kr 15 45 0 45A Unit 1 Personnel Lock Backup Fuse 15 N.A.

SMMA-F4A Primary Bkr 15 45 0 45A Unit 1 Emergency Personnel Lock Backup Fuse 15 N.A.

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1. TABLE 3.8-la (Contiriued) -

8 g UNIT 1 CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETPOINT OR RESPONSE

Q CONT. RATING TIME

• ^ DEVICE NimBER & LOCATION (AMPERES) (SECON05) SYSTEM POWERED H .

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, j .. g 4. 120 VAC-Pane 1 boards (Continued)

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'l ** IKM-2 Primary 8kr 30 45 8 90A RCP IC Space Htr

i Backup Fuse 30 N.A.

IKM-28 Primary Skr 20 36 9 60A Cont Spray Sys Rh Trans w Backup Fuse 20 'N. A. INSMT 5400 I

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. 1KM-30 J, Primary 8kr 20 36 9 60A Cont Spray Sys Rh Trans

• Backup Fuse 20 N.A. INSHT 5410 ,

IKN-1 Primary Bkr 30 45 9 90A RCP 18 Space Heater Backup Fuse 30 N.A.

IKN-2

, Primary Bkr 30 . 45 9 90A RCP 10 Space Heater Backup Fuse 30 N.A. ,

1KN-25 BEA* #/ l*

Primary 8kr 20 36 8 60A Incore Inst 9:!! r. 1  :

Backup Fuse 20 N.A. , jj IKN-27 "

Primary 8kr 20 36 @ 60A Fuel Handling Control Backup Fuse 20 N.A. Console ,-

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TABLE 3.8-la (Continued)

! U UNIT 1 CONTAlletENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES

e E TRIP SETPOINT OR RESPONSE

U CONT. RATING TINE DEVICE NUDSER & LOCATION (ANPERES) (SECONDS) SYSTEM POWERED

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4. 120 VAC-Pane 1 boards (Continued)

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IKN-29 Pe/;um, # A Primary Skr 20 36 9 60A Incore Inst h!!= 2

! Backup Fuse 20 N. 'A.

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. 5. 250 VDC-Lighting w R8 Deadlight Pn1bd

)* IDLD #1 Primary Skr 20 40 9 60A Ltg Pn1 Nos. ILR1 & ILR2 ce i Backup Fuse 20 N.A.

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R8 Deadlight Pnibd IDLD #3 Primary Bkr 20 40 9 60A Ltg Pal Nos. ILR4, ILRS, &

Backup Fuse 20 N.A. ILR6 R8 Deadlight Pnibd IDLD #4

, Primary 8kr 20 40 0 60A Ltg Pn1 Nos. ILR7, ILR8, l Backup Fuse 20 N.A. & ILR9 l l .

l R8 Dead 11ght Pnibd .!

IDLD #6 il Primary 8kr 20 , ,

40 9 60A Ltg Pn1 Hos. ILR12 Backup Fuse 20 N.A.

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TABLE 3.8-Ib E UNIT 2 CONTAINMENT PENETRATION CON 00CTOR OVERCURRENT PROTEC

RESPONSE

TRIP SETPOINT OR I E CONT. RATING -

TIME SYSTEM POWERED l U (AMPERES) (SECONOS)

! DEVICE NUleER & LOCATION

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{ 1. 6900 VAC-Swgr Primary 8kr-RCP2A 5. 0 / C F 44

//,.# 45 1.4 9 25A 1.0 9 20A Reactor Coolant Pump 2A to Backup Brk-2TA-5 5.0 '

i' Reactor Coolant Pump 28 Primary Skr-RCP28 5.0 /I 9 14 : 1.4 9 25A Backup Brk-2TS-5 _

5.0 /4.5 1.5 9 20A j Reactor Coolant Pump 2C i 5.0 /IP 44 1.4 9 25A Primary 8kr-RCP2C 1.5 9 20A l , 5.0 /4. 5- -15 Backup Brk-2TC-5 l

g Reactor Coolant Pump 2D 5.0 /I. '/ 14 + 1.4 9 25A T Primary 8kr-RCP2D /4.E 15 : 1.5 9 20A Backup 8rk-2TD-5 5.0 l,

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2. 600 VAC-MCC 2ENXA-2 ID NC Pump 2C Thermal Barrier 20 45 9 60A Primary 8kr -

N.A. Outlet Auto Isol Viv 2KC345A Backup Fuse 20 2EMMA-2 IE NC Pump 2A Thermal Barrier  ;

20 45 9 60A Primary Bkr . N.A. Outlet Auto Isol Viv 2KC394A ,

I Backup Fuse 20 i

2EMMA-2 2A Cont Air Return Fan 2A Damper 20 45 9 60A Primary 8kr -

H.A. 2RAF-D-2 Backup Fuse 20

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.l TABLE 3.8-Ib (Continued)

E UNIT 2 CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETPOINT OR RESPONSE Q

CONT. RATING TIME

, DEVICE NLASER & LOCATION (AMPERES) (SECONDS) SYSTEM POWERED 3 2. 600 VAC-MCC (Continued) i i

• • 2EMXA-2 28 Primary 8kr 20 45 0 60A N2 to Prt cont Isol Inside Backup Fuse N.A. Viv 2NC54A 20

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2EMXA-2 2C Primary 8kr 20 45 9 60A RCP Mtg Brg 011 F111 Isol w Backup Fuse 20 N.A. Viv 2NC196A i N

. 2EMXA-2 3A l A Primary 8kr 30 45 0 90A Accumulator 2A Disch Isol l

Backup Fuse 30 N.A. Viv2p4A _

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2EMXA-2 38 Primary Bkr 30 45 9 90A Accumulator 2C Disch Isol Backup Fuse 30 N.A. Viv2$6A ,

T 2EMXA-2 3C Primary 8kr 20 45 e 60A Test Hdr Inside Cont Isol Backup Fuse 20 N.A. Viv2$5A ,

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,  ! 2EMXA-2 4A 4

Primary 8kr 20 45 0 60A UHI Check Viv 7est Line Isol Backup Fuse 20 N.A. Vis 2NI266A l .

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TABLE 3.8-1b (Continued)

E m

UNIT 2 CONTAlfetENT PENETRATION CONOUCTGR OVERCURRENT PROTECTIVE DEVICES i .

l

• i: E TRIP SETPOINI OR RESPONSE j Q CONT. RATING TIME  :

" OEVICE NUBSER & LOCATION (SECONOS) SYSTEM POWEREO

!! , (AMPERES) e

$ 2. 600 VAC-MCC (Continued)

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" 2EMX8-4 7C

), Primary 8kr 20 45 0 60A SG 20 Blowdown Line Sample Cont Isol Viv 2NM2208 1! Backup Fuse 20 N.A.

1

! 2EMX8-5 1A

Primary 8kr 20 45 0 60A H2 Purge Exhaust Cont Vessel 1

w Backup Fuse 20 N.A. Isol Viv 2VE6B I k ai 2EMX8-5 $

l A Primary Bkr 20 45 9 60A -

H2 Skimmer Fan 28 Suction i

Backup Fuse 20 N.A. Isol Viv 2VX28 .

t 2EMXC-1A i Primary Skr 200 250 0 600A Lower Containment Cooling

! Backup Fuse 200 N.A. Unit No. 2A i 2EMXC-2A i: Primary Bkr 200 .

250 0 600A . Lower Containment Cooling li Backup Fuse 200 N.A. Unit No. 2C ,

, f I 2EMXC-3C i l Primary Skr 100 110 0 300A Control Rod Orive Vent Fan  !

Backup Fuse 100 N.A. No. 2A &q 2EMXC-30 Primary 8kr 100 110 9 300A Control Rod Orive Vent Fan .

Backup Fuse 100 'N.A. No. 2C Y i

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1 TABLE 3.8-Ib (Continued) g UNIT 2 CONTAINMENT PENETRATION CONDUCTOR DVERCURRENT PROTECTIVE DEVICES E TRIP SETPOINT OR RESPONSE Q CONT. RATING TIME .

'a SYSTEM POWERED

! DEVICE NLDBEP & LOCATION (AMPERES (SECONOS) l

{" 2. 600 VAC-MCC (Continued) 2EMXC-7D Primary Bkr 20 45 @ 60A Pzr Pwr Oper Relief

Backup Fuse 20 N.A. Isol Viv 2NC33A i

2EMXC-8C Primary Bkr 20 45 @ 60A Incore Instrumentation Re 4

w Backup Fuse 20 N.A. Air Hdig Unit 2A N

. 2EMXC-78 a Primary Bkr 20 45 9 60A Upper Containment Return -

• Backup Fuse 20 N.A. Air Fan No. 2A .

2EMXA-4 3C Primary Bkr 30 45 0 90A NC Loop 2C Discharge to ND Backup Fuse 30 H.A. System Cont Isol Viv 2ND 2AC j 2EMXD-4h l

Primary Bkr 200 250 @ 600A Lower Containment Cooling Unit ,

N.A. No. 2B Backup Fuse 200  :,

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2EMXD-2A (

Lower Containment Cooling Unit Primary Bkr 200 250 @ 600A Backup Fuse 200 N.A. No. 2D ,

2EMXD-3B . .-

Primary Bkr 40 45 0 120A ContainmentPipeTunne1hoster Backup Fuse 40 Fan CPT-BF-2B

, N.A. j 0 '

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-I j [ TABLE 3.8-la (Continued)

. C y UNIT 1 CONTAllMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES l

i !E TRIP SETPOINT OR - RESPONSE ,

I U CONT. RATING- TIME

,[ DEVICE Nt#WER & LOCATION (AMPERES) '. (SECONDS) SYSTEM POWERED

[

2. 600 VAC-MCC (Continued) - .

i 2MXN F2B Primary Bkr 40 45 9 120A Lighting Pnibd 2LR15 Backup Fuse 40 N.A.

l 2MMM F20

! Primary Bkr 20 45 9 60A Ice Cond'AHU 2Al Blower A

], g Backup Fuse 20 N.A.

. 2MMM F2E

j Primary Bkr 20 45 9 60A Ice Cond AHU 2A2 diower A

': Backup Fuse 20 N.A.

2MXM F3A /4 Primary Skr

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40 45 9 120A Lighting Pnibd 2LR K Backup Fuse 40 N.A. ,;

2MXM F3B Primary Bkr 40 45 9 120A Lighting Pnibd 2LR17 Backup Fuse 40 N.A.

2MXM F3C Primary Bkr 25 45 9 75A Reactor B1dg Equip Hdig 5 Ton Backup Fuse 25 N.A. Jib Crane 2MXM F7 Primary Bkr 20 45 0 60A Ice Cond AHU 2A3 Blower A Backup Fuse 20 N.A.

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TABLE 3.8-1b (Continued)

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e E

m UNIT 2 CONTAlletENT PENETRATION CONOUCTOR OVERCURRENT PROTECTIVE DEVICES o

E TRIP SETPOINT OR RESPONSE Q CONT. RATING TIME (AMPERES) (SECONOS) SYSTEM POWERED DEVICE NLDSER & LOCATION g 2. 600 VAC-MCC (Continued) 2MXM F3E Primary Bkr 20 45 9 60A Ice Cond AHU 2A4 Blower A Backup Fuse 20 N.A.

2MXM F4A Primary 8kr 20 45 0 60A Ice Cond AHU 2A5 Blower .i ,

w Backup Fuse 20 N.A. l l

N

e. 2MXM F48 l 4 Primary Bkr 20 45 9 60A Ice Cond AHU 2A6 Blower A

'* Backup Fuse 20 H.A. .

. M F4C rimary 8kr 20 45 9 60A Incore Inst Room Sump Pump l

i Backup Fusa 20 N.A. l l

! 2MXM F4D l frimary 8kr 100 110 0 300A Upper Cont Welding Recpt I Backup Fuse 100 N.A. l l

2MXM .F5A i Primary 8kr 20 45 0 60A Ice Cond AHU 2A7 Blower A , l Backup Fuse 20 N.A. tj 'l t'i

" i 2MXM F58 <

Primary Skr 20 45 9 60A Ice Cond AHU 2A8 Blower A I Backup Fuse 20 N.A. , l 1

J O t.y ..

{c TABLE 3.8-1b (Continued)

, g UNIT 2 CONTAINNENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES 8

E TRIP SETPOINT Oit RESPONSE Q . CONT. RATING TIME i

" (SECONDS) SYSTEM POWERED OEVICE NUDBER & LOCATION (ANPERES)

F 9 2. 600 VAC-MCC (Continued)

" 2EMXC-4C l Primary 8kr 90 -

110 9 270A Containment Air R6 turn Fan

~

Backup Fuse 90 N.1- . No. 2A 2ENXC-40 Primary BLr 90 110 9 270A Hydrogen Recombiner w Backup Fuse 90 N.A. No. 2A k

cm 2EMXC-6A l A Primary 8kr 40 45 9 120A Containment Pipe Tunnel

" Backup Fuse 40 N.A. p @osterFanCPT-BF-2A ,

2ENXC-68 ,

Primary 8kr 30 45 0 90A Upper Containment Air Handling Backup Fuse 30 N.A. Unit 2A 2ENXC-6C .

Primary 8kr 30 45 9 90A Upper Containment Air HdIg Backup Fuse 30 N.A. Unit 2C No. 2C ,

2EMXC-6D .i '

Primary 8kr 90 110 9 270A Hydrogen Skimmer Fan .;'

Backup Fuse 90 N.A. .

2EMXC-7C .  ;

Primary Skr 20 45 9 60A Upper Cont Return Air Fan Backup Fuse 20 N.A. f:o. 2C .

?

i F ,

~

.i U t> T# -

TABLE 3.8-la (Continued) y UNIT 1 CONTAINNENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES E TRIP SETP0 INT OR RESPONSE }. '

U CONT. RATING TINE '

DEVICE NUpWER & LOCATION (ANPERES (SECOISS) SYSTEM POWERED

[

j

{

2. 600 VAC-MCC (Continued) 1ENXC-70 Primary 8kr 20 45 8 60A Pzr Pwr Oper Relief

• • Backup Fuse 20 N.A. Isol Viv INC33A IEHXC-8C

~

Primary 8k'r 20 45 0 60A Incore Instrumentation Rm Backisp Fuse 20 N.A. Air Hdig Unit IA em 1ENXC-80

$ Primary Bkr 20 45 @ E0A Upper Containment Return .

. Backup Fuse -

20 N.A. Air Fan No. lA -

IENXA-4 3C Primary Bkr 30 45 6 90A NC Loop IC Olscharge to NO I Backup Fuse 30 H.A. System Cont Isol Viv INO 2AC j 1

1EMX0-1A 4 Primary Bkr 200 250 0 600A Lower Containment Cooling Backqa Fuse 200 N.A. Unit No. IB 1ENXD-2A g(

Primary 8kr 200 250 9 600A Lower Containment Cooling e Backup Fuse 200 N.A. Ualt No. 10 f.

E

! IENX0-38 , .I:

Primary Bkr 40 45 9120A ontainment Pipe Tunnel Backup Fuse 40 N.A. B oster Fan CPT-8F-1B .  ;,

f

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