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Proposed Tech Specs Modify TS Section 15.3.3, Eccs,Auxiliary Cooling Sys,Air Recirculation Fan Coolers, & Containment Spray,To Incorporate Allowed Outage Times
	ML20129F210
Person / Time
Site:	Point Beach
Issue date:	09/30/1996
From:	; WISCONSIN ELECTRIC POWER CO.
To:	;
Shared Package
ML20129F163	List: ML20129F159; ML20129F210;
References
	NUDOCS 9610040075
	Download: ML20129F210 (8)
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ATTACHMENT 5 Edited Technical Specification Pages 15.3.3-3 15.3.3-6 15.3.3-9 15.3.3-10 15.3.7-2 15.3.7-3 15.5.2-2 1

9610040075 960930 PDR ADOCK 05000266 f

PDH

B.

Containment Cooling and Iodine Removal Systems 1.

A reactor shall not be made critical, except for low temperature physics tests, unless the followir:g conditions associated with that reactor are met:

a.

'Ihe spray additive tank contains not less than 2675 gal. of solution with a sodium hydroxide concentration of not less than 30% by weight.

b.

Two containment spray pumps are operable.

c.

Four accident fan-cooler units are operable.

d.

All valves and piping, associated with the above components and required to function during accident conditions, are operable.

2.

During power operation, the requirements of 15.3.3.B-1 may be modified to allow any ONE of the following ::rpr :-': t: 5: !::p:=5b ! imitations (a.. b.. or c.) to be in effect at any one time.

If the system is not restored to meet the requirements of 15.3.3.B-1 within the time period specified, the reactor shall be placed in the hot shutdown condition within six hours and in cold shutdown within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

02: cr!S ' f= =c!r - :y 5::: cf::rek: pr"!&d S:t ::!r b ::::=:d :

a.

p:=55 :"" - *- 5 :=. ":: :Sr :=!&r' f= = Sr a:!! 5: p:=hk befen

' :t!::!:; :! "-- = : 6:! :;rdh er!&r' f= =:!r.

One or two accident fan coolers may be out of service orovided the fan coolers are restored to operable status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . The remaining accident fan coolers shalljm operable.

b.

One containment spray pump may be out of service provided the pump is restored to operable status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . The remaining containment spray pump shall be operable 5:f=: !-%:! g tr! !===

- 6: ! p:=5!: pump.

Unit 1 - Amendment No.469 15.3.3-3 N :mbr 2!, !9"*

Unit 2 - Amendment No -44

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a.

Far-gservice water pumps are operable, !r: frc= r? tren.

b.

All necessary valves, interlocks and piping required for the functioning of the Service Water System during accident conditions are also operable.

2.

During power operation, the requirements of 15.3.3.D-1 may be modified to allow enH4the following== pen =t :: 5: !nep= 5h condition =* : y en: !Sc. If the system is not restored to meet the conditions of 15.3.3.D-1 within the time period specified, both-the affected reactor (s) will be placed in the hot.hutdown condition within six hours and in cold shutdown within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

On: fi: f:r rz !=d =ic: r::= p:=p: =:y b: :: ef =!= provMed : p:=p !:

a.

retta=d :: ep =b!: :!:tu. % 21 h==.

One of the six reauired service water pumos may be out of service orovided a numo is restored to operable status within 7 days. A second service water numn may be out of service l

provided a pumn is restored to operable status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . A third service water numn may be out of service orovided two numns_ ate restored to operablg status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

I b.

One f'h::: !: p '9 he service water ring header continuous flowcath may be out of service for a period of 24 h==7 days Ifless than four seryice water numns are onerable.

service water system flow shall be evaluated within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months of entry into this LCO.,

c.

A-An automatic isolation valve = : r;== ce p :=: reauired during accident conditions may be out of service for un to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months provided up:!= =n 5:==;hed :tP i! h= 2t least four service water numns are operable. This LCO can be exited orovided the line is isolated with a seismically aualified isolation valve or the valve is restored to coerable status.

d.

The containment fan cooler outlet motor coerated valves may be onen for un to 72 hoyn provided at least four service water numos are ooerable. His LCO can be exited orovided the valyes are returned to the closed position or the flowoath is isolated.

I Basis The normal procedure for starting the reactor is, first, to heat the reactor coolant to near operating temperature, by running the reactor coolant pumps. The reactor is then made critical by withdrawing control rods and/or diluting boron in the coolant.m With this mode of start-up, the energy stored in the reactor coolant during the approach to criticality is substantially equal to that during power operation and therefore to be conser" live most engineered safety system components and auxiliary cooling systems, shall be fully operable. D>, ring low temperature physics tests there is a negligible amount of stored energy in the reactor coolant, therefore an accident comparable m severity to the Dr:ign Basis Accident is not possible, and the engineered safety systems are not required.

i Unit 1 - Amendment No.-44 15.3.3-6 02:2b= 12,!995 l

i Unit 2 - Amendment No.4M

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and (4) long term suberiticality is maintained following a steamline break assuming ARI-l and fuel failure is j

precluded.

The containment cooling function is provided by two independent systems: (a) fan coolers and (b) containment j

spray which, with sodium hydroxide addition, provides the iodine removal function.W During normal power operation, only three of the four fan coolers are required to remove heat lost from equipment and piping within the containment.* '- 6: :==: ef: N=; Pr.:.^ r!& t, =y ::: efi: fe!!:r :g ::=b! ::!::: :'"! prr!&

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5:!=::: !!:;::r&r:::::!rm:::prz =: (!) fen: f= :::!:n,(2)::: :::: !rt:..::p=y pump:,(3) w i

f= :: !:n p!= =::= !rrrt ep=y purg.* Sodium hydroxide addition via one spray pump reduces airborne -

i iodine activity sufficiently to limit off-site doses to acceptable values. One efi: four or two fan coolers is-ar.c f

permitted to be inoperable for up to 48-2_2 hours during power operation.

Specification 15.3.3.B.2 allows one of the following limitations (a.. b.. or c.) to be in effect at any one time. This is intended to preclude simultaneous inoperability of the containment accident fan cooling system and the containment sorav system. It is also intended to oreclude inoperability of both traine of either of these systems. It is not intended to oreclude inoperability of components in the same train for either of these systems. For examnle. simultaneous inoperability of the Train A containment sprav nump and the Train A containment soray system valves is allowed.

Specification 15.3.3.B.2.c requires valves that provide the duplicate function be operable prior to initiating repairs on an inoperable valve. For the specific case of the containment spray pump discharge (SI-860) valves, SI-860A and SI-860D provide duplicate functions. Valves SI-860B and SI-860C are not required for system operability.

Hence, prior to removing valve SI-860A from service, valve SI-860D must be operable and vice versa.

The component cooling system is different from the other systems discussed above in that the components are so located in the Auxiliary Building as to be accessible for repair after a loss-of-coolant accident. The component cooling water pump together with one component cooling heat exchanger can accommodate the heat i

Unit 1 - Amendment No.-49 15.3.3-9 De=mbr 2!, ! 9?

Unit 2 - Amendment NoA4

i removal load on one unit either following a loss-of-coolant accident, or during normal plant shutdown. If during the post-accident phase the component cooling water supply is lost, core and containment cooling could be maintained j

until repairs were effected."

A total of six service water pumps are installed, only two-three of which are required to operate during the injection and recirculation phases of a postulated loss-of-coolant accident,* in one unit together with a hot shutdown or normal operation condition in the other unit. For either reactor to 'oe critical, few-gservice water pumps must be operable.-Tit c ef'h: pump: =t be per:md f:cm i: W tmin, end i: cier

xc==t be per:=d frem thW-B' train-SpiciHcations 15.3.3.D.2.c and d reauire four service water pumps to be operable to provide sufficient flow for_accidentmitigation when these speciHcations are in effect Ihe_stryicr_ water ring header continuous flowpath LCO reauirement (TS 15.3.3.D.2.b) applits anytime continuity of the flowpath in the service water ring header is interrupted. This includes isqlation of any header or headers in the_ system. This LCO recognizeilbat one_ aspect of redundancy in the service water systeni is the ability to isolate a break in the system and still maintain ability to provid _ required flow to supported eauipment. This capability is C

impaired anytime the continuous flowpath of the ring header is blocked. The 7 day allowed outace time is based on the fact that a piping failure must occur to cause_a subsequent eroblem with system operability. f2iping failures are not considered as the single failurtfor system fuqctionality during an accident.

TS 15.3.3.D.2.b requires that service water system flow is evaluated within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months of entry into this LCO if less than four service water pumps are op_CIable. This is necessary to ensure that all reauired couipment will receive sufficient flow in this condition. If it is determined that any equipment will not receive sufficient flow. the applicable LCOs for the affected eauipment shall be entered. These LCOs can be exited if system reatienment is completed to achieve the requiIcd flow rates for the affected equipment.

Entry into the applicable LCOs for the affected eauipment is also reauired when any part of the service water ring header is removed from service. For example. if the north header is removed from service. all Technical Specification reauired rouipment reauired for operation should be orJ1 ave already becn switched to the south hrader. The containment accident fan cooler inoperability recuires entry into the applicable LCO for Unit 2 (TS 15.3.3.B.2.a which is 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months sl when the header _iiremoved from service. If Unit 2 is already in a shutdown condition where containment accident fan _c00ler operability is not reauired. no LCO would apply. Unit I would be subjecLto the 7 day allowed outage time for the loss _of the service water ring header continuous flowpath. The 7 day allowed outage time is hased on approximate repair time for system piping and the possibility that a mechanical failure in another part of the system could result in a loss of service water system function.

The containment fatLconltr. service syater outlet motor operated valves consist of two fully redundant valves that are automatically opened in response to a safety iniection signal. Either valYf_iicanable of nassing the full flow reauired for all_four fan cooler units in accident mode. At various times. these valves are opened to allow testine of the containment fan coolers or adiustment of the system flow rates. If one or both of these motor operated _yalves are open in a unit. there may be insu0icient service water flow if an accidentoccurs in the other unit and sinele failurt_eccurs. Therefore. in this case. the other unit is in a limitine condition for ooeration because relaxation of single failure is necessarv. Hat unit _EDuldie considered the "affected unit" and heats _the valves must be closed within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or the affected unit must be shut down. If the valves are open in both units. they would both be considered _"affseted" until such time that the motor operated valves werg_ closed for a unit. at which time the allttted unit would be the unit with the closed valves. The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months allowed time is consistent with the relaxation of single failure and allowed outage time associated with a loss of redundancy for the service water system. For the case of single unit operation. the valves for the_ operating unit may be coen without limitation if the valves for the shutdownunit are in the shut oosition or the flowpath is isolated. He flowpath is considered isolated if total flag would not exceed the expected flowrate in the non-accident unit durine accident conditions.

References FSAR Section 3.2.1 m

FSAR Section 6.3.2 FSAR Section 9.3.2 FSAR Section 6.2 FSAR Section 6.3 FSAR Section 9.6.2 Unit 1 - Amendment No.-4M 15.3.3-1940 0:::mber 2!, !991 Unit 2 - Amendment No.-46

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For ong otboth units to be made critical, the normal power supply and a standby emergency power supply to all the 4160/480 Volt safeguards buses shall be operable and the buses are energized from their normal supply.

j.

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$: '!50/180 Ve!! =f:guri bu=: U " ' ^.0i?03, Un" ' ^.05:301, =d Un" 2 A0ET012:!!

b cp=d!: =d S: bar: r: =rg!=d frc= &:!r :=:! =pp!y.

F:: Un" 2 :: S =26 =!:!=!, i: n = ! pcwn =pply =d : ::=dby :=rg=:y pe== =pp!y ::

6: '!50!180 Ve!! =f:gurt bur: U. :: 2 A05.903, Un : 2 A06:?0 t, =d Un" ' ^.0ET03 da!!

t b eped!: rd i: bur:== =rg!=d frer S:!r n:=2! =pp!y.

B.1 During power operation of one or both reactors, the requirements of 15.3.7.A.1 may be modified to allow i

the following arrangements of systems and components:

If the 345 KV lines are reduced to only one, any operating reactor (s) must be promptly reduced to, a.

and limited to,50% power. If all 345 KV lines are lost, any operating reactor (s) will be reduced to supplying its auxiliary load, until one or more 345 KV transmission lines are again available.

b.

If both 345/13.8 KV auxiliary transformers are out of service and only the gas turbine is operating, only one reactor will remain operating and it will be limited to 50% power. The second reactor will be placed in the hot shutdown condition.

c.

If the 13.8/4.16 KV auxiliary transformers are reduced to only one, the reactor associated with the out of service transformer must be placed in the hot shutdown condition.

d.

With a unit in cold or refueling shutdown or defueled, B03 and B04, for that shutdown unit, may be tied together through their common tie breaker for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months provided the required redundant decay heat removal in the shutdown unir and the required redundant shared engineered safety features for the other unit are operable. If the tie breaker cannot be opened or the conditions of 15.3.7.B.I.e met within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , the operating unit shall be placed in the hot shut-down condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in cold shutdown within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Unit 1 - Amendment No.461 15.3.7-2 M r d 5,1995 Unit 2 - Amendment No. MS

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With a unit defueled, B03 and B04, for that shutdown unit, mey be tied together through their e.

common tie-breaker in excess of 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months provided:

1)

An evaluation is performed to show that the loads that remain or can be energized by the t

buses will not cause a potential overload of the associated diesel generator. The

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applicable Limiting Conditions for Operation of the equipment removed from service j

shall be entered for the operating unit.

2)

A single train of spent fuel coolbg is adequate to cool the spent fuel pool.

3)

The required redundant shared engineered safety features for the other unit are operable.

f.

The normal power supply or standby emergency power supply to Unit 1 A05/B03 or Unit 2 A06/B04 may be out of service for a period not exceeding 7 days provided the required redundant engineered safety features are operable and the required redundant standby emergency power supplies are started within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months before or aRer entry into this LCO and every 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months f

thereaner. If the normal power supply is out of service, an operable emergency diesel generator is supplying the affected 4160/480 Volt buses. Aner 7 days, both units will be placed in hot shutdown within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and cold shutdown within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

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The normal power supply or standby emergency power supply to Unit 1 A06/B04 or Unit 2 l

A05/B03 or both may be out of service for a period not exceeding 7 days provided the required redundant engineered safety features are operable and the required redundant standby emergency power supplies are started within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months before or aAer entry into this LCO and every 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months thercaRer. If the normal power supply is out of service, an operable emergency diesel generator is supplying the affected 4160/480 Volt buses. AAer 7 days,i: :"r'6:S er halh. units will be f

placed in hot shutdown within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and cold shutdown within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

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Unit 1 - Amendment No.-M4 15.3.7-3 Mrd 5, !"5 Unit 2 - Amendment No. 45 i

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De automatically actuated containment isolation valves are designed to close upon high pressure j

in the containment (set-point no higher than 6 psig) and on a safety injection signal. The actuation l

system is designed such that no single component failure will prevent containment isolation if 1

required.

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C.

Containment Systemt i

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The containment vessel has an internal spray system which is capable of providing a distributed borated water spray of at least 1200 gpm. During the initial period of spray operation, sodium l

I hydroxide would be added to the spray water to increase the removal ofiodine from the

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containment atmosphere.*

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The containment vessel has an intemal air recirculation system which consists of four ventilation fans t.nd air coulers capable of a total heat removal capability of 66,60G41.700 Btu /sec under conditions following a loss-of-coolant accident.*

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References:

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(1) FSAR Section 5.1.2.2

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l (2) FSAR Section 5.1.2.6 (3) FSAR Section 6.4 (4) FSAR Section 6.3 i

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Unit 1 - Amendment No.

15.5.2-2 Unit 2 - Amendment No.

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ML20129F210

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References:

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