ML20217C586

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Proposed Tech Specs Changes to TS 3.4.B to Change Minimum Conditions for AFW & Permit Startup Operations to Continue W/Inoperable Turbine Driven AFW Pump or Associated Sys Valves Due to Inability to Complete IST Requirements
ML20217C586
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 09/26/1997
From:
NORTHERN STATES POWER CO.
To:
Shared Package
ML20217C583 List:
References
NUDOCS 9710010439
Download: ML20217C586 (6)
v • d • e


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Exhibit B Prairie Island Nuclear Generating Plant License Amendment Request September 26,1997 Proposed Changes Marked Up on Existing Technical Specification Pages Exhibit B consists of an existing Technical Specification page with the proposed changes highlighted on that page, The page affected by this License Amendment Request is listed below:

TS.3.4-2 TABLE TS.3.5-2B (Page 5 of 9)

I 9710010439 970926 DR ADOCK0500g2

TS.3.4-2 d.

3.4.B.l. A minimum of 100,000 gallons of water is available in the condensate storage tanks and a backup supply of river water is available through the cooling water system.

e. Motor operated valves MV-32242 and MV-32243 (Unit 2 valves MV-32248 and MV 32249) shall have valve position monitor lights OPFRABLE and shall be locked in the open position by having th motor control center supply breakers physically locked in the off position,
f. Manual valves in the above systems that could (if one is im-properly positioned) reduce flow below that assumed for accident analysis shall be locked in the proper position for emergency use. During POWER OPERATION, changes in valve l position will be under direct administrative control,
g. The condensate supply cross connect valve C-41-2, to the auxil'ary feedwater pumps shall be blocked and tagged open.

Any changes in position of this valve shall be under direct administrative control.

2. During STARTUP OPERATION or POWEP. OPERATION, any one of the following conditions of inoperability may exist for each unit provided STARTUP OPERATION is discontinued l(exceptiaa notedlin l 374'.B12 fa); until OPERABILITY is restored. If OPERABILITY 'is~nct Fest'ored^Githin the time specified, place the affected unit (or either unit in the case of a motor driven AFW pump inoperability) in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce reactor coolant system average temperature below 350'F within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />,
a. A Turbine Driven AFW pump, systen valves and, piping may be inoperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.3 STARTUP OPERATION mayfcontinue With?a2 Turbine' Driven?AFW, Pump 1and/or associated; system valvesLinoperable basedLaolely onLthe: In-ServiceTtesting' requirements (of:TSisection14.2jA.2fand= flow verification having notibeen met? providedialliother; requirements for operability'are" satisfied. JThe pump:and/or?

e associated systemt valves must;bentested and operablefpriorito exceeding 10( reactor powerfor 72(hoursifromiincreasing;RCS temperature;aboveM50*F y

b. A motor driven AFW pump, system valves and piping may be inoperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />,
c. The condensate storage tanks may be inoperable for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided the cooling water system is available as a backup supply of water to tne auxiliary feedwater pumps,
d. The backup supply of river water provided by the cooling water system may be inoperable for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided a minimum of 100,000 gallons of water is available in the condensate storage tanks,
e. The valve position monitor lights for motor operated valves MV-32242 and MV-32243 (Unit 2 valves MV-32248 and MV-32249) may be inoperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> provided the associated valves' positions are verified to be open once each shift.

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Table TS.3.5-2B (Page 5 of 9)

ENGTNEERED SAFETY FEATURE ACTUATION TABLE INSTRUMENTATION MINIMUM FUNCTIONAL UNIT TOTAL NO. CHANNELS CHAN?ELS APPLICABLE OF CHANNELS TO TRIP OPERABLE MODES ACTION

7. AUXILIARY FEEDWATER
a. Manual 2 1 2 1, 2, 3 26
b. Steam Generator Lo-Lo 3/SG 2/SG in 2/SG in 1, 2, 3 24 Water Level any SG each S/G
c. Undervoltage on 4.16kV Buses 2/ bus 1/ bus on 2 on one 1, 2 29 11 and 12 (Unit 2: 21 and 22) both bus (Start Turbine Driven Pump buses only)
d. Trip of Both Main Feedwater Puaps
1. Turbine Driven 2 2 2 1, 2* 26
2. Motor Driven 2 2 2 1, 2* 26
e. Safety Injection see F co-w orm i m.= er en saray n,.co , nern a -
f. Automatic Actuation Logic 2 1 2 1, 2, 3 30 and Actuation Relays

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  • ^ j;;The ? AuxiliaifL Feedwatsfautc stast"ofdhe f Tdrbine and? t Motor"Drivelii AFW : pumps"cau' sed' byl the Trip"of ^Both" Main Feedwater! Pumps:maybe bypassed during Startup.land Shutdown Operations whcn,thel: Main Feedwater. Pumps are not .

required;tolsupplyLfeedwater tolthe Steam Generators.

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Exhibit C -

Prairie Island Nuclear Generating Plant License Amendment Request September 26,1997 I

Revised Technical Specification Page Exhibit C consists of a revised page for the Prairie Island Nuclear Generating Plani Technical Specifications with the proposed changes incorporated. The revised page is L listed bolow:

TS.3.4-2 TABLE TS.3.5-2B (Page 5 of 9)

C S TS.3.4-2' 13.4.B.1. :d.- A minimum of 100,000 gallons of water is available in the condensate storage tanks and a backup supply of river water is available through the cooling water system.

e. Motor operated-valves MV-32242 and MV-32243 (Unit 2 valves MV-32248 and MV-32249) shall have valve position monitor lights OPERABLE and shall be locked in the open position by having the motor control center supply breakers physically locked in the off position,
f. Manual valves in the above systems that could (if one is im-properly positioned) reduce flow below that assumed for accident analysis shall be locked in the proper position for '

emergency use. During POWER OPERATION, changes in valve position will be under direct administrative control.

g. The condensate supply cross connect val /e C-41 '., to the ,

auxiliary feedwater pumps shall.be blocked and tagged-open, Any changes in position of this valve shall be under direct administrative control.

2. During STARTUP OPERATION or POWER OPERATION, any one of the following conditions of inoperability may exist for each unit provided STARTUP OPERATION is discontinued (except as noted in 3.4.B.2.a) until OPERABILITY is restored. If OPERABILITY is not l restored within the time specified, place the affected unit-(or either unit in the case of a motor driven AFW pump inoperability) in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce reactor coolant system average temperature below 350*F within the -

following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. ,

a. A Turbine Driven AFW pump, system valves and piping may be iicperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. STARTUP OPERATION may continue with a Turbine Driven AFW Pump and/or associated system-valves inoperable based solely on the In-Service testing requirements of TS section 4.2.A.2 and flow verification having not been met, provided all other requirements for operability are satisfied. The pump and/or associated - '

system valves must be tested and operable prior to exceeding 10% reactor power or 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from increasing RCS temperature above 350'F .

4 -b. A motor driven AFW pump, system valves and piping may be y inoperable'for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

i I c. The condensate storage tanks may be inoperable for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />

i. provided the cooling water system is available as a backup

. supply of water to the auxiliary feedwater pumps.-

d. The backap supply of river water provided by the cooling

{ ' water-system may be inoperable for.48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided u

minimum of 100,000 gallons.of water is available in tne condensate storage tanks.

l e. The valve position monitor lights for motor operated valves MV-32242 and.MV-32243 (Unit 2 valves MV-32248 and MV-32249) may be inoperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> provided the associated

valves' positions are verified to be open once each shift.

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Table TS.3.5-2B (Page 5 of 9)

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ENGINEERED SAFETY FEATURE ACTUATION TABLE INSTRUMEhTATION MINIMLH FUNCTIONAL UNIT TOTAL NO. . CHANNELS CHANNEL _S APPLICABLE OF CHANNELS TO TRIP OPERABLE MODES ACTION

7. AUXILIARY FEEDWATER
a. Manual 2 1 2 1, 2, 3 26
b. Steam Generator Lo-Lo 3/9G 2/SG in 2/SG in 1, 2, 3 24 Water Level any SG each S/G
c. Undervoltage on 4.16kV Buses 2/ bus 1/ bus on 2 on one 1, 2 29 11 and 12 (Unit 2: 21 and 22) both bus (Start Turbine Driven Pump buses only)
d. Trip of Both Main Feedwater Pumps
1. Turbine Driven 1 2 2 1, 2* 26
2. Motor Driven 2 2 2 1, 2* 26
e. Safety Injection s= r=== i tw a nime an an s.n , % noamss en .w mp-i .
f. Automatic Actuation Logic 2 1 2 1, 2, 3 30 and Actuation Relays

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