ML17345A793

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Proposed Tech Specs Re ESFAS Instrument Trip Setpoints,Fire Detection Instrumentation,Fire Detection Instruments for Essential Equipment & Fire Hose Stations
ML17345A793
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 04/04/1991
From:
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17345A791 List:
References
NUDOCS 9104150015
Download: ML17345A793 (26)
v • d • e


Text

ATTACHMENT 3 PROPOSED TECHNXCAL SPECIFICATION Marked-up Technical Specifications

Pages, 3-26 3-27 3-47 3-48 3-49 5-03 5-04 7-30 8-08 8-21 8-22 8-23 9104150015 05000250

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PDR ADO PDR P

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ENGINEERED SAFETY FEATURE ACTUATION SYSTEM FUNCTIONAL UNIT 6.

Auxilfary Feedwater (Continued)

TRIP SETPOTNT ALLIABLE VALUES d.

Bus Stripping See Itea 7.

below for all Bus Stripping Setpofnts and A11owable Values.

e.

Trip of All Hafn Feedwater Pump Breakers.

7.

Loss of'ower a.

4. 16 kV Busses A and B

(Loss of Voltage) b.

480V. Load Centers (Instantaneous Relays)

Degraded Voltage Load Center N.A.

N.A.

N.A.

N.A.

3A 3B

'3c',

i+38 V (10 sec t 1 sec delay)

[

KV (10 sec t 1 sec delay)

[

3D 4A av (10 sec KV (10 sec KV (10 sec

%V (10 sec KV (10 sec a I sec delay)

[

4 1 sec delay)

I'.

4 I sec delay) t 1 sec delay) 4 I sec del~)

CoincfAnt Hth:

Safety-In'5ectkon and Diesel Generator Breaker Open KV (10 sec a 1 sec delay)

See Itea 1.

above for all Safety In)ectfon Trfp Setpofnts and Allowable Values.

N.A.

H.h.

TURKEY POINT - UNITS 3 i 4 3/4 3-26 NENNENT NOS)88 AND 133

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TABLE 3. 3-3 (Contfnwd)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEN FUNCTIONAL UNIT 7.

Loss of Power (Continued) c.

480V Load Centers (Inverse Tice Relays)

Degraded Voltage Load Center TRIP SETPOIHT ALLOWABLE VALUH 3A 3B 3C 3D

+AS se 15V(60 sec ~

delay) iSV(60 sec a30 delay)

KV(60 sec ~

delay) i5V(60 sec 130 delay) 40 43o

+8+

+3+

KV(60 sec 130 s

delay) i5V(60 sec &0 sec delay)

KV(60 sec &0 delay) av(60 sec +O delay)

Coincident with:

Diesel Generator Breaker Open 8.

Engineerinl Safety Features Actuation Systoa Interlocks a.

Pressurizer Pressure b.

Tave-UN

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9.

Control Rooa Ventilation Isolation N.A.

<2000 psig

>5314F N.A.

l p<<g 3

a.

Autoaatic Actuation Logic and Actuation Relays b.

Safety In)ection N.A.

N.h.

See Itea 1.

above for all Safety In)ection Trip Setpoints and Al1 owable Values.

TURKEY POINT - UNITS 3 5 4 3/4 3-27 QelDlefT NOS.138 AND l33

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INSTRtNENTATION FIRE DETECTION INSTRUHENTATION LIMITING CONDITION FOR OPERATION 3.3.3.4 As a mfnfmum> the fire detection instrumentation for each fire detection zone shown in Table 3.3-6 shall be OPERABLE.

AppLICABILITY: Nenever equipment protected by the ffre detection instrument is h IIPEINBLL ACTION:

b.

C.

d.

Mfth any, but not more than one-half the total fn any fire zone, Function A fire detection instruments shown in Table 3.3-6 fnoperab1e, restore the inoperable instrument(s) to OPERABLE status within 14 days or within the next 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> establish a fire watch patrol to inspect the zone(s) with the inoperable instrument(s) at least once per hour, unless the instrument(s) is located inside the containment, then inspect that containment zone at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (or monitor the containment air temperature at 1east once per hour at the locations listed fn Spec)ffcatfon 4.6.1.5).

Nth mo'e than one-half of the Function A fire detectfon instruments fn any fire zone shown in Table 3.3"6 fnoperable, or with any Function B fire detection instruments shown fn Table 3.3-6 inoperable, or with any two or r

ad acent fire detection Cu instruments shown fn Table 3.3 11 noperable, n

ur establish a fire watch patrol to nspect the zone{s) with the inoperable instrument(s) at least once per hour, unless the instrument(s) fs located inside the containment, then inspect that containment zone at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (or aonftor the containment afr temperature at least once per hour at the locations listed in Specification 4..6.1.5).

Nth.the fire watch patrol not established at the 18 toot level of the turbine area, restore the fire watch patrol within one hour, or prepare and subaft a Special Report to the Coaaissfon within 30 days.

The provisions of Specifications 3.0.3 are not applicable.

SURVEILLANCE RE IREMENTS 4.3.3.4.1 Each of the above required fire detection fnst~nts whfch are accessible during plant operation shall be demonstrated OPERABLE at least once per 6 months by performance of a TRIP ACTUATING DEVICE OPERATIONAL TEST.

Fire detectors which are not accessible during plant operation shall be demonstrated OPERABLE by the performance of a TRIP ACTUATING DEVICE OPERATIONAL TEST dut fng each COLD SHUTOON exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> unless performed fn the previous 6

months.

4. 3.3.4.2 The NFPA Standard 72D supervised circuits supervision associated with the detector alarms of each of the above required fire detection instruments shall be demonstrated OPERABLE at least once per 6 months.

TURKEY POINT - UNITS 3 4 4 3/4 3-47

+mam NOS.138 AND133

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TABLE 3.3-6 FIRE DETECTION INSTRUHENTS INSTRUHENT LOCATION FIRE ZONE AREA 4

5 a 910-11-12-13-14-15-16-19-20-21-22-25-6-

27-30-40-45 a 47-54-55-58-59-60-61-62-63-67-68-70-71-72-73-74-75-76-79A-81-82-84-2~A Aux. Bldg. Corridor E.

10'hee.

Drain/Laundry/Shower Tank Room Laundry/Chemical Drain Tank Roea Pipeway Unit 3 RHR Heat Exchanger Rooi'HR Pump 3A Rooi RHR Pump 3B Rooa Unit 4'HR Heat Exchanger Roon RHR Pump 4A Rooa RHR Pump 4B Rooo Unit 3 M Elect Penet Rooa Unit 3 S Elect Penet Rooia Instrument Shop Radioactive Laboratory Aux. Bldg. Elect. Equipat.

Room Unit 4 N Elect Penet Rooa Unit 4 M Elect Penet Rooa Unit 4 Piping and Valve Rooa Unit 3 Piping and Valve Rooa Unit 4 Charging P'uap Rooa Unit 4.Component Cooling Mater Area Unit 3 Component Cooling Mater Area Unit 3 Charging Puep Rooa Aux Bldg Corridor, El.

18'nit 4 Containment Electrical Penet.

Area""

Unit 3 Containment Electrical Penet.

Area"~

Reactor Control Rod Eqpat Rooa - Unit 4 Computer Rooe Reactor Control Rod Eqpat Roea - Unit 3 4160V Switchgear 48 4160V Switchgear 4A 4160V Switchgear 38 4160V Switchgear 3A Diesel Generator 38 Diesel Generator 3A Day Tank Rooa 38 Day Tank Rooa 3A Unit 4 Turbine Lube oil Reservoir North-South Breezeway Unit 4 Hain Transforier Unit 4 Aux Transforaer Area Unit 3 and 4 Aux Feedwater Pump Area (DC Enclosure Bl

)

~)AQ,K SA'r'tc v Rc ow KEY POINT - UNITS 3 5 4 3/4 3-48 TOTAL NUNER OF INSTRUHENTS

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(2/0)

(1/0)

(11/0)

(5/0)

(2/0)

(2/0)

(s/o)

(2/0)

(2/o)

(slo)

(Q/0)

(2/0)

(ol4)

(O/4)

(5/2)

(0/4)

(4/2)

(0/4)

(0/3)

(0/3)

I)/1)

(1/0}

(0/6)

(1/0)

(I/O)

(1/0)

(1/0) 8 (6/0)

(4/o)

(4/0)

(3/0)

(3/0)

(18/0)

(10/0)

(16/0)

(4/o)

(11/0)

(4/o)

(10/0)

(6/o)

(10/0)

(6/0)

Io)'4/0)

(3/o)

(Z/a)

AHENDHENT NOS.l 38 AND l33

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INSTRUMENT LOCATION t

TABLE 3. 3-6 Contf nued FIRE DETECTION INSTRNENTS TOTAL NUNER OF INSTRlNENTS

~y)'eHy (1/0)

(1/0)

(1/0)

(1/0)

{1/0)

(1/0)

(5/5)

(N/A)N (N/A)a F?RE ZONE AREA

~y 87 - Unit 3 Aux Transformer Area 93 - 480V Load Center 4A and 4B

{1/0) 94 - 480V Load Center 4C and 40

{2/0) 95 - 480V Load Center 3A and 3B

{1/0) 96 - 480V Load Center 3C and 3D (2/0) 97 - Hechanfcal Equipment Rooa (1/0) 98 - Cab1e Spreading Rooa

{16/15) 101-RPI Inverter and % Sets (1/0) 102-Battery Rack 48 103-Battery Rack 3A 104-RPI Inverter and HG Sets (2/0) 106-Control Rooa

~/0) 108A-Trafn A Inverters 3/4) 1088-Train 8 Inverters 4/4) 109-Battery Rack 4A 110- Battery Rack 3B 113-Unit 4 Feedwater Platforms (2/0) 116-'nit 3 Feedwater Platfora (2/o 119-Unit 4 Intake Cooling Mater Pump Area (4/0 120- Unit 3 Intake Cooling Mater Pump Area (4/0 132" Control Rooa Electrical Chase 133-Diesel Generator 48 (5/5)

(3/0) 134-4160V Switchgear 30 Rooe 135-Diesel Generator 48 Control Panel Rooa (2/0) 136-ofesel Generator 48 Fuel Transfer Pump

{2/0)

'138-Diesel Generator 4A (3/0)

(5/0) 139-4160V Swftchgear 40 Rooa (2/oy 140- Dies>>l Generator 4A Control Panel Rooo

{2/0) 141-Diesel Generator 4A Fuel Transfer Puap (2/0)

N/A - 18'ev>>l, of th>> Turbfne Area TABLE NOTATIONS

{x/y):

x fi,nuaber of Functfon A (early warning fire dectectfon and notfffcatfon only) instruments.

y fs nuiber of Functfon B (actuation of Ffr>> Suppressfon Systems and early warning fire detection and notfffcatfon) fnstrtaents.

The ffre detection instruments located wfthfn the contafneent are not required to be operable during the perforeance of Type A Contafraent Leakage Rate Test.

A fire watch patrol shall be. established to inspect the 18 foot level of the Turbine Area once each hour.

TURKEY POINT - NITS 3 4 4 3/4 3-49 ANENONENT NOS.l38 ANDl>>

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'EMERGENCY CORE COOLING SYSTEMS 3/4 5 2 ECCS SUBSYSTEMS Tav GREATER THAN OR E)UAL TO 350 F

LIMITING CONDITION FOR OPERATION

3. 5. 2 The following Emergency Core Cooling System (ECCS) equipment and flow paths shall be OPERABLE:

a.

Four OPERABLE Safety Injection (SI) pumps, each capable of being powered from its associated OPERABLE diesel generator

, with discharge aligned to the RCS cold legs,*

b.

Two OPERABLE RHR heat exchangers, c.

Two OPERABLE RHR pumps with discharge align d to the RCS cold legs, d.

An OPERABLE flow path capable of taking suction from the refueling water storage tank as defined in Specification 3.5.4, and e.

Two OPERABLE flow paths capable of taking suction from the containment sump.

APPLICABILITY:

MODES 1, 2, and 3>>>>.

ACTION:

a.

b.

C.

With any one of the required ECCS components or flow paths inoperable, except for inoperable Safety Injection Pump(s), restore the inoperable component or flow path to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

In the event the ECCS is actuated and injects water in the Reactor Coolant System, a Special Report shall be prepared and submitted to the Commission pursuant to Specification 6.9.2 within 90 days describing the circumstances of the actuation and the total accumulated actuation cycles to date since January 1, 1990.

With one of the four required Safety Injection pumps inoperable and the opposite unit in MODE 1, 2, or 3, restore the puap to OPERABLE skcdug within 30 days or be in at least HOT STANDBY within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.>>>>*

"Only three'OpERABLE Safety Injection (SI) pumps (two associated with the unit and one f~'.the opposite unit), each capable of being powered frow its asso-ciated OPERA8LE diesel generator, with discharge aligned to the RCS cold leg are required if the opposite unit is in MODE 4, 5, or 6.

  • "The provisions of Specifications 3.0.4 and 4.0.4 are not applicable for entry into MODE 3 for the Safety Injection flow paths isolated pursuant to Specifica-tion 3.4.9.3 provided that the Safety Injection flow paths are restored to OPERABLE status prior to T exceeding 3804F.

Safety Injection flow paths may avg be isolated when T is less than 3804F.

avg

  • "*The provisions of Specifications 3.0.4 and 4.0.4 are not applicable.

¹Inoperability of the required EDG's does not constitute inoperability of the associated Safety Injection pumps.

TURKEY POINT - UNITS 3 5 4 3/4 5-3 AMENDMENT NOS. 138AND 133

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EHERGENCY CORE COOLING STEHS 3/4.5.2 ECCS SUBSYSTEMS - T GREATER THAN OR EQUAL TO 3504F LIHITING CONDITION FOR OPERATION d.

With two of the four required Safety Injection pumps inoperable and the opposite unit in MODE 1, 2, or 3, restore one of the two inoperable pumps to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the'ext 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

This ACTION applies to both units simultaneously.

e.

With one of the three required Safety Injection pumps inoperable and the opposite unit in MODE 4, 5, or 6, restore the pump to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

f.

With a required Safety Injection pum LE but not capable of being powered from its associate iesel generator, restore the capability within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or sn a least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

TURKEY POINT - UNITS 3 5 4 3/4 5-4 AMENDMENT NOS.13BAND1 33

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TABLE 3. 7-4 FIRE HOSE STATIONS IDENTIFICATION HS-03-01 HS-03-02 HS-03-03 HS-03-04 HS-03-05 HS-03-06 HS"03-07 HS-03-08 EL.

18'L.

18'L.

18'L.

30'L, 30'L.

42'L.

42'L.

42'OCATION East of 4160Y SWGR Room on Column West of 3A Condensate Pump on Pedestal Passageway South of SG Feed Pump Room East of 480V Load Center on Column South End of Mezzanine Deck NW End of Turbine Deck North of 6A HPFW Heater NW Corner of Entrance to Elevator FIRE ZONE 88 87 83 105 105 117 117 79 HS-04-01 HS-04-02 HS-04-03 HS-04-04 HS-04-05 HS-04-06 HS-04"07 HS-04-08 HS-AB-01 HS-AB-02 HS-AB"03 HS"AB-04 HS"AB-05 EL. 18' South of 4160V SWGR Room on Column EL. 18' Passageway South of SG Feed Pump Room EL. 30' East of 480V Load Center at Stairway EL. 30' South End of Mezzanine Deck EL. 42' West End of Turbine Deck EL. 42' East Side of Turbine Deck and North of 6A FW Heater EL. 42' East Side of Turbine Deck and North of 6B FW Heater EL. 42' Southwest Corner of Turbine Deck EL. 18' East-West Passageway at West End EL. 18' East-West Passageway at East End EL. 18' North-South Passageway Outside Unit 3 Charging Pump Room EL. 50' Roof of Unit 3 New Fuel Storage Area EL. 50' Roof of Unit 4 New Fuel Storage Area 82 78 105 105 117 117 117 117 58 58 58 118 118 S-o+-oq E'~ t'-

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~<4Ckpcc a Svi40t<4 TURKEY POINT - UNITS 3 8 4 3/4 7-30 AMENDMENT NDS237 AND 132

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, ELECTRICAL POWER SYST SURVEILLANCE RE UIREMENTS Continued h.

shall be maintained within these limits during this test.

Within 5 minutes after completing this 24-hour test, per fom Specification 4.8. l. 1.2.g.4)b);~<

8) 'erifying that the auto-connected loads to each diesel generator do not exceed 2500 kW {Unit 3), 2874 kW {Unit 4);

9)

Verifying the diesel generator's capability to:

a)

Synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated restoration of offsite power, b)

Transfer its loads to the offsite power source, and c)

Be restored to its standby status.

10)

Verifying that the diesel generator operating in a test

mode, connected to its bus, a simulated Safety Infection signal overrides the test mode by:

(1) returning the diesel generator to standby operation, and (2) automatically energizing the emergency loads with offsite power; ll) Verifying that the fuel transfer pump transfers fuel froi the fuel storage tank {Unit 3), fuel storage tanks (Unit 4) to the day tanks of each diesel associated with the unit via the installed cross-connection lines; 12)

Verifying that the automatic load sequence timer is OPERABLE with the interval between each load block within t 10K of its design interval; 13)

Verifying that the diesel generator lockout relay prevents the diesel generator from starting; At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting all required diesel generators simultaneously and verifying that all required diesel generators provide 60 a 1.2 Hz frequency and 4160 4 420 volts in less than or equal to 15 seconds; and At least once per 10 years by:

1)

Oraining each fuel oil storage tank, reaoving the accumulated sediment and cleaning the tank.

2)

For Unit 4 only, performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection No of the ASIDE Code in accordance with Section XI of the ASIDE Boiler and Pressure Vessel Code and applicable Addenda.

"~If Specification 4.8.1.1.2.g.4)b) is not satisfactorily completed, it is not necessary re eat the 24-h test.

Instead, the diesel generator Nay be o erat a4 %89 kW Unit 3, SN%

kW (Unit 4) for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or until operating tempera ure as stabilized an en within 5 minutes repeat Specification 4.8.1.1.2.g. 4)b).

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be%~eew ZBou-Z,rc o TURKEY POINT - UNITS 3 4 4 3/4 8-8 AMENDMENT NOS I 38 AND133

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v TABLE 3.8-1 APPLICABLE TO UNIT 3 BASED ON UNIT 4 LOAD CENTERS AND HOTOR CONTROL CENTERS INOPERABLE ALLOWABLE OUTAGE TIMES Unit 4 Load Centers and Motor Control Centers Inoperable (Any MODE)

A'llowable Outage Times ( hc v its )

Unit 3 -

MODES I-, 2, 3 or With AC Trains 3A, 3B, 4A, 5 4B OPERABLE With AC Trains 3A, 3B, dc 4A OPERABLE With AC Trains 3A, 3B, 4 4B OPERABLE LC 4A MCC 4A LC 4C and/or HCC 4C LC-4H and/or HCC 4D LC 4B and/or HCC 4B LC 4D N/A N/A 2*

2 N/A 72 N/A 2A N/A N/A N/A N/A N/A 2*%'2 "If the battery charger powered from the out-of-service LC and/or HCC is not required by LCO 3.8.2.1, the out-of-service time is not applicable (N/A).

>>If neither of the battery chargers powered from the out-of-service LC and/or HCC is required by LCO 3.8.2.1, the out-of-service tiae is 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

TURKEY POINT - UNITS 3 Ec 4 3/4 8-21 AHENDHENT NOS.l'Q AND 133

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v 0 TABLE 3.8-2 APPLICABLE TO UNIT 4 BASED ON UNIT 3 LOAD CENTERS AND MOTOR CONTROL CENTERS INOPERABLE ALLOWABLE OUTAGE TIMES Unit 3 Load Centers and Motor Control Centers Inoperable (Any MODE)

Al'Iowable Outage Times

( kowas)

Unit 4 -

MODES 1, 2, 3 or With AC Trains 4A, 48, 3A, 8L 38 OPERABLE With AC Trains 4A, 48, 8L 3A OPERABLE With AC Trains 4A, 48, 4 38 OPERABLE LC 3A LC 3C and/or MCC 3C LC 3H and/or HCC 30 LC 38 and/or HCC 38 LC 30 N/A 2

N/A 72 N/A N/A N/A N/A 2k*

72 "If the battery charger powered froe the out-of-ser ce LC and/m HCC is not required by LCO 3.8.2.1, the out-of-service time ~ is not applicable (N/A).

~"If neither of the battery chargers powered frol t out-of-service LC and/or MCC is required by LCO 3.8.2.1, the out-of-service tiae is 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

TURKEY POINT - UNITS 3 4 4 3/4 9-22 AMENDMENT NOS.138 AND 133

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)Q ONSITE POWER DISTRIBUTION SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.3,2 As a minimum,'he following electrical busses shall be energized in the specified manner:

a ~

One train of A.C. emergency busses associated with the unit (3.8.3.1a.

or b.) consisting of one 4160-volt and three 480-volt A.C.

emergency busses load centers" and three (four for Unit 4 Train A) vital sections of motor control center busses, b.

Two 120-volt A.C.. vital busses for the unit energized from their associated inverters"" connected to their respective O.C.

busses, and c.

Three 125-volt O.C.

busses energized from their associated battery banks.

APPLICABILITY MOpES 5>>~ and 6""".

ACTION:

With any of the above required electrical busses not energized in the required

manner, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, or movement of irradfated fuel, initiate corrective action to energize the required electrical busses in the specified manner as soon as
possible, and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, depressurize and vent the RCS through at least a 2.2 square inch vent.

SURVEILLANCE RE UIREMENTS 4.8.3.2 The specified busses shall be determfned energized in the required manner at 1 ast once per 7 days by verifying correct breaker alignment and indicated voltage on the busses.

"With the opposite unit in MODE 1, 2, 3, or 4, the 480-volt load centers can only be cross-tftd upon issuance of an engineering evaluation to prevent exceeding required eltctrfcal components maximutI design ratings and to ensure availability of the minimum required equipment.

""A backup inverter may be used to replace the normal inverter provided the normal inverter A the opposite unit is not replaced at the same time.

>>"CAUTION - If the opposite unit is in MODES 1, 2, 3, or 4, see the corresponding Limiting Condition for Operation 3.8.3,1.

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