ML042750035

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Technical Specifications, Revisions to Technical Specifications 3.3.1, Reactor Trip System (RTS) Instrumentation and 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation.
ML042750035
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 09/24/2004
From:
NRC/NRR/DLPM
To:
SHUKLA G , NRR/DLPM/PD4, 415-8420
Shared Package
ML042810297 List:
References
TAC MB6762, TAC MB6763
Download: ML042750035 (15)
v • d • e


Text

RTS Instrumentation 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. One channel inoperable. ----------- NOTE------

For functions 6, 7, and 8.b, the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or both the inoperable and the additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. For functions 2.b, 3.a, and 3.b, only the inoperable channel may be bypassed for surveillance testing of other channels. For function 14.a, the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

E.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR E.2 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> F. One Intermediate Range F.1 Reduce THERMAL 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Neutron Flux channel POWER to < P-6.

inoperable. OR F.2 Increase THERMAL 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> POWER to > P-10.

(continued)

DIABLO CANYON: UNITS I & 2 3.3-3 Unit 1 - Amendment No. 435,442,458,173 Unit 2 - Amendment No. 435,442,49,175

RTS Instrumentation 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME G. Two Intermediate Range G bNOTEr--------

Neutron Flux channels Limited boron inoperable. concentration changes associated with RCS inventory control or limited plant temperature changes are allowed.

Suspend operations Immediately involving positive reactivity additions.

AND G.2 Reduce THERMAL 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> POWER to < P-6.

H. Not used

1. One Source Range 1.1 - -----NOTE-----

Neutron Flux channel Limited boron inoperable. concentration changes associated with RCS inventory control or limited plant temperature changes are allowed.

Suspend operations Immediately involving positive reactivity additions.

J. Two Source Range Neutron J.1 Open reactor trip Immediately Flux channels inoperable. breakers (RTBs).

(continued)

DIABLO CANYON - UNITS 1 & 2 3.3-3a Unit 1 - Amendment No. 435 442 458,173 Unit 2- Amendment No. 43544245g,175

RTS Instrumentation 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME K. One Source Range K.1 Restore channel to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> Neutron Flux channel OPERABLE status.

inoperable. OR K.2.1 Initiate action to fully 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> insert all rods.

AND K.2.2 Place the Control Rod 49 hours5.671296e-4 days <br />0.0136 hours <br />8.101852e-5 weeks <br />1.86445e-5 months <br /> System in a condition incapable of rod withdrawal.

L. Required Source Range L.1 -- NOTE--------

Neutron Flux channel Plant temperature inoperable. changes are allowed provided the temperature change is accounted for in the calculated SDM.

Suspend operations Immediately involving positive reactivity additions.

AND L.2 Perform SR 3.1.1.1. 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> AND Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-4 Unit 1 - Amendment No. 435 458,173 Unit 2 - Amendment No. 135 459,175

RTS Instrumentation 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME M. One channel inoperable. - ---------- NOTE-----------------

For function 8.a, the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or both the inoperable and the additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. For functions 9 and 10, the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

For functions 12 and 13, only the inoperable channel may be bypassed for surveillance testing of other channels. This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

M.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR M.2 Reduce THERMAL 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> POWER to < P-7.

N. Not used (continued)

DIABLO CANYON- UNITS I & 2 3.3-4a Unit 1 - Amendment No. -135,48 173 Unit 2 - Amendment No. 45,459,175

RTS Instrumentation 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME X. One or more SG Water ----------------- NOTE------------------

Level Low - Low Trip Time For function 14.b, the inoperable Delay channel(s) TTD channel (processor) and/or inoperable. one additional TTD channel (processor) may be surveillance tested with the affected steam generator low-low water level channels for one TTD channel (processor) in bypass and the affected SG low-low water level channels for the other TTD channel (processor) in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. This note is not intended to allow simultaneous testing of multiple TTD channels (processors) on a routine basis.

X.1 Set the Trip Time Delay to 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> zero seconds.

OR X.2 Place the affected SG 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Water Level Low - Low channel(s) in trip.

OR X.3 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> DIABLO CANYON - UNITS 1 & 2 3.3-7 Unit 1 - Amendment No. 435,173 Unit 2 - Amendment No. 435,175

RTS Instrumentation 3.3.1 Table 3.3.1-1 (page 4 of 7)

Reactor Trip System Instrumentation APPLICABLE MODES OR OTHER NMNIa SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE NOMINAL FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

16. Turbine Trip
a. Low 1a) 3 0 SR 3.3.1.10 246.5psig 50psig Auto-Stop SR 3.3.1.15 Oil Pressure
b. Turbine Stop 10) 4 P SR3.3.1.15 2 1% open 2% open Valve Closure I
17. Safety Injection 1,2 2trains Q SR3.3.1.14 NA NA (SI) Input from Engineered Safety Feature Actuation System (ESFAS)
18. Reactor Trip System Interlocks
a. Intermediate 2(e) 2 S SR 3.3.1.11 Ž8E-1I amp 1E-10 amp Range SR 3.3.1.13 Neutron Flux, P-6 b Low Power 1 1 per train T SR 3.3.1.5 NA NA Reactor Trips Block, P-7
c. Power 1 4 T SR 3.3.1.11 s 36.2% RTP 35% RTP Range SR 3.3.1.13 Neutron Flux, P-8 (continued)

(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.

(e) Below the P-6 (Intermediate Range Neutron Flux) interlocks.

U) Above the P-9 (Power Range Neutron Flux) interlock.

DIABLO CANYON - UNITS 1 & 2 3.3-15 Unit 1 - Amendment No. 435,442,173 Unit 2 - Amendment No. 435,44-2,175

RTS Instrumentation 3.3.1 Table 3.3.1-1 (page 5 of 7)

Reactor Trip System Instrumentation APPLICABLE MODES OR OTHERNOIA(a SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE NOMINAL FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

18. Reactor Trip System Interlocks (cont)
d. Power Range 1 4 T SR 3.3.1.11
e. Power Range 1,2 4 S SR 3.3.1.11 2 8.8% RTP 10% RTP Neutron SR3.3.1.13 and< 11.2%

Flux, P-10 RTP

f. Turbine 1 2 T SR 3.3.1.10
  • 10.2% 10% turbine Impulse SR 3.3.1.13 turbine power power I Chamber Pressure, P-13
19. Reactor Trip 1,2 2 trains R SR 3.3.1.4 NA NA Breakers(k)

(RTBs) 3 (b) 4 (b) 5 (b) 2 trains C SR 3.3.1.4 NA NA

20. Reactor Trip 1,2 1 each per U SR 3.3.1.4 NA NA Breaker RTB Undervoltage and Shunt Trip 3 (b) 4 (b), 5 (b) 1 each per C SR 3.3.1.4 NA NA Mechanisms k RTB
21. Automatic 1,2 2 trains Q SR 3.3.1.5 NA NA Trip Logic 3(b). 4(b). 5(b) 2 trains C SR 3.3.1.5 NA NA
22. Seismic Trip 1,2 3 directions w SR 3.3.1.5
  • 0.43g 0.35g (x,y,z) in 3 SR 3.3.1.12 locations SR 3.3.1.14 (a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.

(b) With Rod Control System capable of rod withdrawal or one or more rods not fully inserted.

(k) Including any reactor trip bypass breakers that are racked in and closed for bypassing an RTB.

DIABLO CANYON - UNITS 1 & 2 3.3-16 Unit 1 - Amendment No. 135,442,173 Unit 2 - Amendment No. 435,442,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. One channel inoperable. ------------- NOTE-----------------

For function 1.d, the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or both the inoperable and the additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. For functions 1.e(1), 4.d(1), 4.d(2), and 6.d(1),

the inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

D.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR D.2.1 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND D.2.2 Be in MODE 4. 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-20 Unit 1 - Amendment No. 4, 173 Unit 2 - Amendment No. 435,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. One Containment Pressure ------------------NOTE----------------

channel inoperable. The inoperable channel and one additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> only if any function 1.c channel associated with the inoperable channel is in trip. This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

E.1 Place channel in bypass. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR E.2.1 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND E.2.2 Be in MODE 4. 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-20a Unit 1 - Amendment No. 435,173 l Unit 2 - Amendment No. 435,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME I. One channel inoperable. ------------------NOTE-----------------

The inoperable channel may be bypassed for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for surveillance testing of other channels.

1.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR 1.2. Be in MODE 2. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> J. One channel inoperable ------------------NOTE-----------------

The inoperable channel and/or one additional channel may be surveillance tested with one channel in bypass and one channel in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

J.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR J.2. Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> K. One channel inoperable K.1.1 Place the channel in cut- 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> out.

AND K.1.2 Return the inoperable 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> channel to an OPERABLE status OR K.2.1 Be in MODE 3. 54 hours6.25e-4 days <br />0.015 hours <br />8.928571e-5 weeks <br />2.0547e-5 months <br /> AND K.2.2 Be in MODE 5 84 hours9.722222e-4 days <br />0.0233 hours <br />1.388889e-4 weeks <br />3.1962e-5 months <br /> (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-22 Unit 1 - Amendment No. 435, 173 Unit 2 - Amendment No. 435,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME L. One or more channels or L.1 Verify interlock is in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> trains inoperable. required state for existing unit condition.

OR L.2.1 Be in MODE 3. 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> AND L.2.2 Be in MODE 4. 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br /> M. One or more SG Water ------------------NOTE-----------------

Level - Low Low Trip Time The inoperable TTD channel Delay channel(s) (processor) and/or one additional inoperable. TTD channel (processor) may be surveillance tested with the affected steam generator low-low water level channels for one TTD channel (processor) in bypass and the affected SG low-low water level channels for the other TTD channel (processor) in trip for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. This note is not intended to allow simultaneous testing of multiple TTD channels (processors) on a routine basis.

M.1 Set the Trip Time Delay to 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> zero seconds.

OR M.2 Place the affected SG 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Water Level - Low Low channel(s) in trip.

OR M.3.1 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND M.3.2 Be in MODE 4. 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-23 Unit 1 - Amendment No. 435,173 Unit 2 - Amendment No. 435,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME N. One channel inoperable. N.1 Restore channel to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> OPERABLE status.

OR N.2 Declare the associated Immediately AFW pump or MSIV inoperable.

0. One channel inoperable ------------------NOTE-----------------

The inoperable channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or with the inoperable channel in trip, one additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

0.1 Place channel in trip. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR 0.2.1 Be in MODE 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND 0.2.2 Be in MODE 5. 42 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-5 months <br /> (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-24 Unit 1 - Amendment No. 435,442, 173 Unit 2 - Amendment No. 435,442,175

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME P. One channel inoperable. ------------------ NOTE-----------------

The inoperable channel and one additional channel may be surveillance tested in bypass for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> only if any function 1.c channel associated with the inoperable channel is in trip. This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

P.1 Place channel in bypass. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> OR P.2.1 Be in MODE 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND P.2.2 Be in MODE 5. 42 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-5 months <br /> DIABLO CANYON - UNITS 1 & 2 3.3-24a Unit 1 - Amendment No. 135,442,173 Unit 2 - Amendment No. 435,442,175

ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 4 of 7)

Engineered Safety feature Actuation System Instrumentation APPLICABLE MODES OR OTHER NOMINAL (a)

SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE TRIP FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

4. Steam Line Isolation (continued)
d. Steam Line Pressure (1) Low 1,2(), 3(b)(i) 3 per steam D SR 3.3.2.1 2 597.6(c) 600(c) psig line SR 3.3.2.5 psig SR 3.3.2.9 SR 3.3.2.10 (2) Negative 3 (g)(1) 3 per steam D SR 3.3.2.1 s 102.4(h) 100 (h)

Rate-High line SR 3.3.2.5 psi/sec psi/sec SR 3.3.2.9 SR 3.3.2.10

e. Not used.
f. Not used
g. Not used
h. Not used
5. Feedwater Isolation
a. Automatic 1,2() 2 trains H SR 3.3.2.2 NA NA Actuation SR 3.3.2.4 Logic and SR 3.3.2.6 Actuation Relays (continued)

(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.

(b) Above the P-1 1 (Pressurizer Pressure) interlock and below the P-1I interlock unless the Function is blocked.

(c) Time constants used in the lead/Jag compensator are to = 50 seconds and t2 =5 seconds (9) Below the P-11 (Pressurizer Pressure). However, may be blocked below P-11 when Safety Injection on Steam Line Pressure-Low is not blocked.

(h) Time constant utilized in the rate/lag compensator are t3 = 50 sec and t4 = 50 sec.

(i) Except when all MSIVs are closed and de-activated.

a) Except when all MFIVs, MFRVs, and associated bypass valves are closed and de-activated or isolated by a closed manual valve.

DIABLO CANYON - UNITS 1 & 2 3.3-30 Unit 1 - Amendment No. 4I5, 173 Unit 2 - Amendment No. 4-35, 175

ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 5 of 7)

Engineered Safety feature Actuation System Instrumentation APPLICABLE MODES OR OTHER NOMINAL (a)

SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE TRIP FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

5. Feedwater 'I Isolation (continued)
b. SGWater 1,20) 3 perSG J SR 3.3.2.1
  • 75.2% 75%

Level-High SR 3.3.2.5 High (P-14) SR 3.3.2.9 SR 3.3.2.10

c. Safety Refer to Function 1 (Safety Injection) for all initiation functions and requirements.

Injection

6. Auxiliary Feedwater
a. Manual 1,2,3 1 sw/pp N SR 3.3.2.13 NA NA
b. Automatic 1,2,3 2 trains G SR 3.3.2.2 NA NA Actuation SR 3.3.2.4 Logic and SR 3.3.2.6 Actuation Relays (Solid State Protection System)
c. Not used d.1SG Water 1,2,3 3 perSG D SR 3.3.2.1 2 7.0% 7.2%

Level-Low Low SR 3.3.2.5 SR 3.3.2.9 SR 3.3.2.10 (continued)

(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.

() Except when all MFIVs, MFRVs, and associated bypass valves are closed and de-activated or isolated by a closed manual valve.

DIABLO CANYON - UNITS 1 & 2 3.3-31 Unit 1 - Amendment No. 435,173 Unit 2 - Amendment No. 135,175

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