ML20207B852

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Proposed Tech Spec 3/4.3.10, App R Alternative Shutdown Instrumentation & Controls, Incorporating More Restrictive Action Statement in Event of Combustion Turbine Generator Inoperability
ML20207B852
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 07/15/1986
From:
DETROIT EDISON CO.
To:
Shared Package
ML20207B841 List:
References
NUDOCS 8607180271
Download: ML20207B852 (9)
v • d • e


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Attachment 1 3/4.3 INSTRUtiENTATION 3/4.3.10 APPEUDIX R ALTERNATIVE SHUTDOUN INSTRUf1ENTATION AMD CONTROLS LIriITING CONDITION FOR OPERATION 3.3.10 The alternative shutdown system transfer switches, power, controls and monitoring instrumentation channels shown in Table 3.3.10 shall be OPERABLE.

APPLICABILITY: OPERATIONAL CONDITIONS 1 and 2.

ACTION:

a. Uith the number of OPERABLE alternative shutdown monitoring instrumentation channels less than required by Table 3.3.10 restore the inoperable channel to OPERABLE status within 7 days or be in at least HOT SHUTDOUM within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
b. Uith one or more alternative shutdown system transfer switches, power or control circuits inoperable, restore the inoperable switches / circuits to OPERABLE status within 7 days, or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
c. The provisions of Specification 3.0.4 are not applicable.

SURVEILLANCE REOUIkE!1EMTS 4.3.10.1 Each alternative shutdown monitoring instrumentation channel shall be demonstrated OPERABLE by. performance of the CHANNEL CHECK and CHANNEL CALIBRATION operations at the frequencies shown in Table 4.3.10.

4.3.10.2 Each alternative shutdown system transfer switch, power supply and control circuit shall be de.nonstrated OPERABLE by verifying its capability to perform its intended function (s) at least once per 18 months.

8607180271 860715 PDR ADOCK 05000341 p PDR 3

TABLE 3.3.10 APPENDIX R ALTERNATIVE SHUTDOWN INSTRUf1ENTATION AND CONTROLS

!!IIIIMUM READOUT CHANNELS INSTRUl1ENT LOCATION OPERABLE

1. CTG Unit 1 - Volts H21-P623 1
2. CTG Unit 1 - Frequency 1
3. CTG Unit 1 - Hatts 1
4. CTG Unit 1 - Vars 1
5. Condensate Storage Tank Level 1
6. Standby Pecdwater Flow 1
7. Reactor Uater Level 1
8. Reactor Pressure 1
9. Torus Water Temperature 1
10. Torus Water Level 1
11. Primary Containment Temperature 1 CONTROL CIRCUITS SWITCH LOCATION TRANSFER (T), CONTROL (C), Cf1C (CtfC) ,

PUSHBUTTON (PB), SELECTOR (S)

(T) EFl Eupv. Control H21-P623 (T) EF2 System Transfer (C) Voltage Control (C) Governor Control (Cf!C) CTG 11 Unit 1 Control / Status (C) 120 KV Pos Gil Bkr Control (C) 120 KV Pos GK Bkr Control (C) 120 KV Pos GH Bkr Control (C) 120 KV Pos GD Bkr Control (C!!C) CTG 11 Pos A2 Bkr Control i (CMC) 13.2 KV Pos A7 Outbuilding - TSC Pd Bkr Control (CIIC) 13.2 KV Pos A6 SS64 Alt Pd Ekr Control (CIIC) SS64 Pri Pos D Bkr Control (Cl!C) SS66 Pri Pos C Bkr Control (CI!C) GS67 Pri Pos B Bkr Control (CMC) Trcns 1 Sec Pot A Bkr Control (Cl!C) SBFU Pump A Bkr Control (Cl!C) SDFW Pump B Ekr Control (CIIC) 4160V Por, V1 Bkr Control (C:1C) 4160V nos V3 Bkr Control (Cf!C) 4160V Pos US Bkt- Control (PB) SBFU Flow Control N21-F002 (PB) SDFW Plov Control N21-F003 (PB) SBFU Iso Valve ll21-F001 (PB) SRV Line B B21-F013 G l

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TABLE 3.3.10 (Continued)

APPENDIX R ALTERMATIVE SMUTDOUM INSTRUMENTATIOM AND COMTROLS CONTROL CIRCUITS SMITCH LOCATION (T) 4160V Pos C9 Tie Breaker Control (Cutoff Switch) H21-P624 (T) 4160V Circuit Breaker Pos C10 Core Spray Pump C Control (Cut-off Switch)

(T) 4160V Pos C5 Circuit Breaker Control (T) 4160V Pos C6 Circuit Breaker Control (T) 4160V Pos C8 Circuit Breaker Control (T) 4160V C11 Circuit Breaker Control (CMC) Residual Heat Removal Pump C (CMC) 4160V Pos C6 Incoming Breaker Control (CMC) 4160V Diesel Gen Bus #12 EB Breaker Control (CMC) ESS Bus 72C Transf R1400S023A Primary Control (T) 43S-5B Transfer Sw Vlv. Ell-F004C H21-P625 (T) 43S-6D Transfer SW Vlv. Ell-F048A (T) 43S-5A Transfer Sw Vlv. Ell-F003A (T) 435-5C Transfer Sw Vlv. Ell-F006C (T) 43S-6A Transfer SW Vlv. Ell-F047A i (T) 43S-6B Transfer Sw Vlv. Ell-F068A (T) 43S-7A Transfer Sw Vlv. P44-F602A (T) 43S-4D Transfer Sw Vlv. P44-F607A (T) 43S-5D Transfer Sw Vlv. Ell-F016A (T) 43S-9C Transfer Sw Fan T47-C002 (T) 43S-4C Transfer Sw Vlv. P44-F606A (T) 43S-3C Transfer Sw Vlv. Ell-F009

< (T) 43S-3A Transfer Su Fan T41-B018 (S) 43S-TW TR SU Valve T50-F412A, E41-F400 (PB) Suppr Pool to Punp C Vlv. Ell-F004C (PB) RHR Heat Exch A Byp Vlv. Ell-PO48A (PB) RUR HX A Outlet Ell-F003A (PB) SDC Suction to RHR Pump C Ell-F006C (PB) RHR Heat Exch A Inl Vlv. Ell-F047A (PB) RUR SW Control Vlv. Ell-F068A (FB) EECW Div I HX Inlet Iso P44-F602A (PB) EECU to Drywl Isolation P44-F607A (PB) Contm Spray Otbd Iso Vlv. Ell-F016A (CMC) Drywell Cooling Fan 2 (PB) EECU from Drywell P44-F606A (FB) RdR Suction Cooling Inbd Vlv. Ell-F009 (S) Drywell Cooling Fan 2 (Low, High speed)

(CMC) RHR Emergency Equipment Cooler 1 (PB) Torus Water Level Isolation Valve E41-F400 (PB) Torus Water Level Isolation Valve T50-F412A l

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TABLE 3.3.10 [ Continued)

APPENDIX R ALTERNATIVE SHUTDOWN INSTRUMENTATION AND CONTROLS CONTROL CIRCUITS SUITCH LOCATION (T) 43S-5A Transfer Switch Vlv. Ell-F024A H21-P626 (T) 43S-2A Transfer Switch Vlv. Ell-F028A (T) 43S-1AR Transfer Switch Fan T47-C001 (T) 43S-3AR Transfer Switch Vlv. Ell-F004A (T) 42S-SDR Transfer Switch Vlv. Ell-F611A (PB) Suppr Pool Cooling Test Ell-F024A H21-P626 (PB) Suppr Chmb Sp Otbd Iso Vlv. Ell-F028A (CHC)Dryvell Cooling Fan 1 (PB) Suppr Pool to Pump A Ell-F004A (S) Drywell Cooling Fan 1 (Low, High Speed)

(PB) RHR Recirc. Otbd Dypass Ell 50-F611A (T) 43S-1B Transfer Switch Vlv. B31-F031A H21-P627 (T) 43S-2B Transfer Switch Vlv. Ell 50-F010 (T) 43S-2C Transfer Switch Vlv. E1150-F015A (T) 43S-3A Transfer Switch Vlv. Ell 50-F017A (PB) Recirc Pump A Disch Vlv. B31-F031A (PB) Crosstie Header Vlv. Ell-F010 (PB) RUR to Recirc. Inbd Iso Vlv. Ell-F015A (PB) RHR Recirc Otdb Iso Vlv. Ell-F017A (T) 43S-4B Transfer Suitch Vlv. P44-F616 H21-P628 (S) EECU from Dryvell Inbd Iso P44-F616 (PB) Dedicated Shutdown System Hll-P811

TABLE 4.3.10 APPEt! DIX R ALTERNATIVE SITUTDOUN INSTRUMENTATIOff Al'D CONTROLS SURVEILLANCE REQUIREMENTS CHANNEL CHANNEL INSTRUI1ENT CHECI' CALIBRATION

1. CTG Unit 1 - Volts f1 R
2. CTG Unit 1 - Frequency 11 R
3. CTG Unit 1 - Hatts  !! 'R
4. CTG Unit 1 - Vars M R
5. Condensate Stora;a Tank Level  !! R
6. Standby Feedvater Flow  !! R
7. Reactor Water Level  !! R
8. Reactor Pressure  !! R
9. Torus Water Temperature  !! R
10. Torus Water Level  !! R
11. Primary Containment Temperature M R i

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INSTRUtlENTATION DASES B3/4.3/10 APPENDIX R ALTERNATIVE SHUTDOUN INSTRUTIENTATION AMD CONTROLS The OPERABILITY of the alternative shutdown system ensures that a fire will not preclude achieving safe shutdown. The alternative shutdoun system instrumentation, control circuits, power circuits and transfer switches are independent of areas where a fire could damage systems normally used to shutdoun the reactor. Thus, capability is consistent with General Design Criterion 3 Appendix R to 10 CFR 50.

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3/4.7 PLANT SYSTEllS 3/4.7.9 APPENDIX R ALTERNATIVE SHUTDOUM AUXILIARY SYSTEMS LIMITING COUDITION FOR OPERATION 3.7.9 The Appendix R Alternative Shutdoun auxiliary systems shall be OPERABLE as described below:

a. A Standby Feedvater (SBFW) System consisting of one OPERABLE SBFW pump and a flow path from the condensate storage tank to the reactor vessel.
b. An OPERABLE CTG Unit 1 and power train capable of supplying

! power to the 64C Bus via its Peaker Bus.

c. An OPERABLE Drywell Cooling Unit (either B001 or B002) consisting of a fan and cooling coil capable of being fed from EECU system.
d. The provisions of specification 3.0.4 are not applicable.

APPLICABILITY: OPERATIONAL CONDITIOUS 1 and 2 ACTION:

l a. Uith the SDFW system inoperable, restore the system to l OPERABLE status within 7 days or be in at least HOT SHUTDOUM 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 COLD SHUTDOUU within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b. With an inoperable CTG Unit 1, verify the 120 KV bus is available by performing surveillance 4.8.1.1.1 and
1. Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, establish a roving fire watch for all the l fire zones where Appendix R Alternative Shutdown is utilized.

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2. Within 7 days, restore CTG Unit 1 to OPERABLE status or within 14 days provide an alternate source of power to the Alternate Shutdown bus.

Otherwise be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 4 and in COLD SUUTDOUD uithln tho following 24 5.ours.

c. With both drywell cooler units B001 and B002 inoperable, restore at least one to OPERABLE status within 7 days or be in at least HOT SHUTDOUU 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 COLD SHUTDOPU within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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PLAT!T SYSTEMS SURVEILLANCE REOUIREMENTS 4.7.9.1 The SBFU system shall be demonstrated OPERABLE by conducti,1g a flow test every 31 days on a staggered test basis.

4.7.9.2 The CTG Unit 1 system shall be demonstrated OPERABLE by starting and supplying load to the Peaker Bus at least once every 31 days.

4.7.9.3 Either one of the Dryuell Cooling Units B001 and B002 shall be verified to be capable of performing its intended function at least once every 31 days.

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PLAT;T SYSTE!!S BASES B3/4.7.9 APPENDIX R ALTERNATIVE SHUTDOHU AUXILIARY SYSTEf1S The systems identified in this section are those utilized for Appendix R Alternate Shutdown but not included in other sections of the Technical Specifications. The action statements assure that the auxiliary systems will be OPERADLE or that acceptable alternative means are established to achieve the same objective.

There are four independent combustion Turbine-Generator units onsite. Unit 1 has a diesel engine starter and thus can be started independently from offsite power. CTG Units 2, 3, and 4 have AC-motor starters and rely on a 480-volt AC feed. The phrase " alternate source of power", as used in Specification 3.7.9, action statement b.2, is defined as a source of power that is not reliant on offsite power for starting (if required) or operating (if already running) and capable of supplying the required loads on the 4160-volt busses associated with the Alternative Shutdown System.

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