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Revised Tech Specs for 920921 LAR Proposing Changes to Surveillance Test Intervals & Allowed Outage Times for ESF & RPS Instrumentation
	ML20070S239
Person / Time
Site:	Prairie Island
Issue date:	05/17/1994
From:	; NORTHERN STATES POWER CO.
To:	;
Shared Package
ML20070S210	List: ML20070S209; ML20070S226; ML20070S239;
References
	NUDOCS 9405230293
	Download: ML20070S239 (7)
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TABLE TS.3.5-2B (Page 5 of 9) j ON 04 W

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION 04

$o MINIMUM n$

TOTAL NO.

CHANNELS CHANNELS APPLICABLE ONN FUNCTIONAL UNIT OF CHANNELS.

TO TRIP OPERABLE MODES ACTION

a. ItD N

7.

AUXILIARY FEEDWATER a.

Manual 2

1 2

1,2,3 3426 b.

Steam Generator Lo-Lo 3/SG 2/SG in 2/SG in 1,2,3 24 1

Water Level any SG each SG l

1 c.

Undervoltage on 4.16 kV 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 2

2 2

1, 2 26

2. Motor Driven 2

2 2

1, 2 26 t

e.

Safety Injection See Functional Unit I above for all Safety Injection initiating functions and requirements.

i f.

' Automatic Actuation. Logic 2

1 2

'1,'2, 3

30 i

and Actuation Relays EQ$

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TABLE 3.5-2B (Page 8 of 9)

Action Statements i

ACTION 25: With the number of OPERABLE channels ACTION 28: With the number of OPERABLE channels one less than the Total Number of one less than the Total-Number of Channels, restore the inoperable Channels, restore the inoperable channel to OPERABLE status within 6 channel to OPERABLE status within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months or be in at least HOT SHUTDOWN hours or be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . Operation in within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

However, one HOT SHUTDOWN may proceed provided the channel may be bypassed for up to 8 main steam isolation valves are closed, hours for surveillance testing per if not, be in at least INTERMEDIATE Specification 4.1, provided the other SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

channel is OPERABLE.

However, one channel may be bypassed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .for surveillance testing per Specification 4.1, provided ACTION 29: With the number of OPERABLE channels the'other channel is OPERABLE.

less than the Total Number of Channels, operation in the applicable MODE may i

proceed provided the following ACTION 26: With the number of OPERABLE channels conditions are satisfied:

one less than the Total Number of Channels, rectcre the incperable a.

The inoperable channel (s) is placed checcel te OPEPf. ELE ctatuc.rithir 72 in the tripped condition within 6 heurc cr be in at Iccc t MOT E!PRDO'..~"

hours, and, within 6 Feur decla nithe7associhted Auxiliary? feddwa te r [ pump %noperable}ahd b.

The Minimum Channels OPERABLE t'akeltheiaction required y requirement is met; however, one

- Specificatiots13(43 2.

inoperable channel may be bypassed.

at a time for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing of other.

ACTION 27: With the number of OPERABLE channels channels per Specification 4.1

c a.-i one less than the Total Number of S2$

Channels, restore the inoperable 5E channel to OPERABLE status within 48 cc a hours or be in at least HOT SHUTDOWN o."

within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and close the cw associated valve.

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TABLE 3.5-2B (Page 9 of 9)

Action Statements ACTION 30: With the number of OPERABLE channels c.

All of the channels associated with one less than the Total Number of tue redundant 4kV Safeguards Bus Channels, rectcre the incperable are operable.

cFc,nel tc OPEPl. ELE ctatun rithin 72 heurc cr be ir at lecct MOT S"LTDOL*

ACTION 33: If the requirements of ACTIONS 30 or 31 vithin the next S heurc cnd in at lecct cannot be met within the time INTEP"EDIATE S"LTDO"" tithin the specified, or with the number of 4+14eving 6 heurc declare (the OPERABLE channels three less than the

'assbelated?auxiliaryf feedwat'er: pump Total Number of Channels, declare the inoperable?anMtakeith'lactilornrequired associated diesel generator (s) e kN SpediIicfp@nj3MC25 ~However, one inoperable and take the ACTION required channel may be bypassed for up to 8 by Specification 3.7.B.

hours for surveillance testing per Specification 4.1, provided the other ACT-ION M - "ith the n=ber of OPEP1. ELE chcnnels channel is OPERABLE.

ene lecc than the 2t:1 M=b e r o f

~

Channelc, rectrre the incperchic ACTION 31: With the number of OPERABLE channels channel te OPER^. ELE ctatuc cithir 72 one less than the Total Number of heurc cr be ir ct lecct HOT Suu7petm Channels, operation in the applicable uithir 6 heurc cnd ir at lecct MODE may proceed provided the INTEF"EDI^.TE S""TDOL".zithir the inoperable channel is placed in the felleuing 6 heurc.

bypassed condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

ACTION 32: With the number of OPERABLE channels two less than the Total Number of Channels, operation in the applicable MODE may proceed provided the following conditions are satisfied:

o m a tn m >

<: m en a.

One inoperable channel is placed in the bypassed condition within 6 ee hours, and, o."

m.u b.

The other inoperable channel is

Y' placed in the tripped condition M

within-6 hours, and,

.+.

h Attaciunent 2 Revised Technical Specification Pages l

1 l

1 i

I h

1 1

j 1..

f' j:

[:-

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

I

-ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION MINIMUM TOTAL NO.

CHANNELS CHANNELS APPLICABLE f

FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION.

7.

AUXILIARY FEEDiJATER l

a.

Manual 2

1 2

1,2,3 26 l

b.

Steam Generator Lo-Lo 3/SG 2/SG in 2/SG in 1, 2, 3 24 Water Level any SG each SG c.

Undervoltage on 4.16 kV Buses 2/ bus 1/ bus on 2 on one 1, 2 29 L

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 2

2 2

1, 2 26 2.. Motor Driven 2

2 2

1, 2 26 e.

Safety Injection See Functional Unit I above for all Safety Injection initiating functions and requirements.

f.

Automatic Actuation' Logic 2

1

'2 1,2,3 30 and Actuation Relays om

,L k.

,. w

TABLE 3.5-2B (Page 8 of 9)

Action Statements t

I ACTION 25: With the number of OPERABLE channels ACTION 28: With the number of OPERABLE channels-one less than the Total Number of one less than the Total Number of Channels, restore the inoperable Channels, restore the inoperable channel to OPERABLE status within 6 channel to OPERABLE status within 6

- hours or be in at least HOT SHUTDOWN hours or be'in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , Operation in within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . However, one HOT. SHUTDOWN may proceed.provided the channel may be bypassed for up to b main steam isolation valves are closed, hours for surveillance testing per if not, be in at least INTERMEDIATE Specification 4.1, provided the other SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

channel is OPERABLE.

3 However, one channel may be bypassed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months for surveillance j

testing per Specification 4.1, provided ACTION 29: With the number of OPERABLE channels thc other channel-is OPERABLE.

less than the Total Number of Channels, operation in the applicable MODE may proceed provided the following ACTION 26: With the number of OPERABLE channels conditions are satisfied:

one less than the Total Number of Channels, declare the associated a.

The inoperable channel (s) is placed auxiliary feedwater pump' inoperable and in the tripped condition within 6-take the action required by hours, and, Specification 3.4.2.

b.

The Minimum Channels OPERABLE requirement is met;.however, one ACTION 27: With the number of OPERABLE channels

, inoperable. channel may be bypassed

. one less than the Total Number of

'at a time for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for Channels', restore the inoperable surveillance testing of other channel to OPERABLE status within 48 channels per Specification 4.1

n e.-a t

hours or be in at least HOT SHUTDOWN E2$

- within the next.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and close the 3 M' l

associated valve.

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TABLE 3.5-2B (Page 9 of 9)

Action Statements j

ACTION 30: With the number of OPERABLE channels ACTION 33: If the requirements of ACTIONS 30 or 31 one less than the Total Number of cannot be met within the time Channels, declare the associated specified, or with the number of auxiliary.feedwater pump inoperable and OPERABLE channels three less than the take the action required by Total Number of Channels, declare the Specification 3.4.2.

However, one associated diesel generator (s) channel may be bypassed for up to 8 inoperable and take the ACTION required hours for surveillance testing per by Specification 3.7.B.

Specification 4.1, provided the other channel is OPERABLE.

i ACTION 31: With the number of OPERABLE chanr.els one less than the Total Number of Channels, operation in the applicable

. MODE may proceed provided the inoperable channel is placed in the bypassed condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

ACTION 32: With the number of OPERABLE channels l

two less than the Total Number of Channels, operation in the applicable MODE may proceed provided the following conditions ~are satisfied;

~

a.

One inoperable channel is placed in the bypassed condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and,

. pe -s s b.

The other inoperable channel is E 2 $i placed in the' tripped condition 55 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and, es oP c.

All of_the channels associated with

"'M the redundant 4kV Safeguards Bus 2?

are operable.

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ML20070S239

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