Text

Changes to Tech Specs 3.3 & 4.3 for Instrumentation & Reactor Protective Instrumentation
	ML19345H142
Person / Time
Site:	Maine Yankee, Saint Lucie
Issue date:	06/28/1977
From:	; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML19345H132	List: ML19345H131; ML19345H139; ML19345H142;
References
	NUDOCS 8105010037
	Download: ML19345H142 (12)
	v • d • e

.

ENCLOSURE 3 3/4.3 INSTRUMENTATION

(]}

3/4.3.1 REACTOR PROTECTIVE INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.1.1 As a minimum, the reactor protective instrumentation channels and bypasses of Table 3.3-1 shall be OPERABLE with RESPONSE TIMES as shown in Table 3.3-2.

APPLICABILITY: As shown in Table 3.3-1.

ACTION:

As shown in Table 3.3-1.

SURVEILLANCE REOUIREMENTS Eacn reactor protective instrumentation channel shall be 4.3.1.1.1 demonstrated OPERABLE by the performance of the CHANNEL CHECE. CHANNEL CALIBRATION and CHANNEL FUNCTIONAL TEST operations during the MODES and at the frequene.ies shown in Table 4.3-1.

The logic for the -bypasses shall be' demonstrated OPERABLE 4.3.1.1.2 prior to each reactor startup unless performed during the preceding The total bypass fur.ction shall be demonstrated OPERABLE at 92 days.

least once per 18 montns during CHANNEL CALIBRATION testing of each channel affected by bypass operation.

The REACTOR TRIP SYSTEM RESPONSE TIME of each reactor trip 4.3.1.1.3 function shall be demonstrated to be within its limit at.least once per Each test shall include at least one channel per function 18 months.

such that all channels are tested at least once every N times 18 months where N is the total number of redundant channels in a specific reactor trip function as shown in the " Total No. of Channels" column of Table 3.3-1.

4 i

CALVERT CLIFFS 3/4 3-1

'8'1 eso y o 631

i T Altt i 1.3-1 E.I:.A_C10_R, P R,0lE C1 1 VI,,1 NSI RtIME_N I 1,10N_

A MINIMtH El" TOTAL NO.

CilANNELS CllANHCLS APPLICABLE P

FUNCTIONAL LM1T Of CIIANNELS 101 RIP UPERAlltE MODES

.1CTION j

M5 1.

Manual Reactor Trip 2

1 2

1, 2 and

1 2.

Power Level - Ifigh 4

2 3(f) 1, 2 2#

i I

Reacto: Coolant Flow - Low 4/SG 2(a)/SG 3/SG 1, 2 (e)

?#

3.

4.

Pressurizer Pressure - liigh 4

2 3

1, 2 2f 5.

Containment Pressure - liigh 4

2 3

1, 2

?#

f 2

I 6.

Steam Generator Pressure - Low 4/SG 2(h)/SG 3/SG 1, 2 7.

Steam Generator Water M

Level - Low 4/SG 2/SG 1/SG 1, 2 27 e

Y 8.

Axial flux Offset 4

'(c) i I

28 N

l I

9. ;i.

Ibermal tiargin/ Low Pressurc 4 2(a )

3 1,2 (e) 2r b.

Steam Generator Pressure Dif ference - liigh 4

2(a) 3 1, 2 (c) 28

10. Loss of Turbine--Hydraulic Fluid Pressure - Low 4

2(c) 3 1

2#

l l

t TARLE 3.3-1 (Continued) l g)

'hk REACTOR PROTECTIVE INSTRUMENTATION 4

E MINIMUM k!

OF CilANNELS TO TRIP OPERABLE MODES ACT10h TOTAL NO.

CllANNELS CHANNELS APPLICABLE FUNCTIONAL UNIT i

I

11. Wide Range Logarithm *c Neutron Flux Monitor a.

Startup and Operating--Rate of Change of Power - liigh 4

2(d) 3(f) 1, 2 and

2#

b.

Shutdown 4

0 2

3, 4, 5 3

us

12. Reactor Protection System 6

1 6

1, 2*

4 i

48 Logic Matrices u

l

13. Reactor Protection System 4/ Matrix 3/ Matrix 4/ Matrix 1, 2*

4 Logic Matrix Relays i

14. Reactor Trip Breakers 8

6 8

1, 2*

4 i

e 4

e e

i l

l

TABLE 3.3-1 (Continued)

TABLE NOTATION With the protective system trip breakers in the closed position and the CEA drive system tapable of CEA withdrawal.

The provisions of Specification 3.0.4 are not applicable.

Trip may be bypassed below 10~# of RATED THERMAL POWER; bypass shall (a) be automatically removed when THERMAL POWER is > 10~' of RATED

~

THERMAL POWER.

Trip may be manually bypassed below 685 psia; bypass shall be (b) automatically removed at or above 685 asia.

Trip may be b'ypassed below 155 of RATED THERMAL POWER; bypass

('c )

shall be automatically removed when THERMAL POWER is > 155 of

~

RATED THERMAL POWER.

Trip may be bypassed below 10*#% and above 12", of RATED THERMAL (d)

POWER.

Trip may be bypassed during testing pursuant to Special Test Exceo-(e) tion 3.10.3.

There shall be at.least two decades of overlap between the Wide Range Logarithmic Neutron Flux Monitoring Channels and the Power (f)

Range Neutron Flux Monitoring Channels.

/

ACTION STATEMENTS With the number of channels OPERAB'.E one less than ACTION 1 required by the Minimum Channels OPERASLE requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and/or open the protective system trip breakers.

With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION ACTION 2 may proceed provided the following conditions are satisfied:

The inoperable channel is placed in either the bypassed a.

or tripped condition within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . For the purposes of testing and maintenance, the inoperable channel may be. bypassed for up to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months from time of initial loss of OPERABILITY; however, the inoperable channel shall then be either restored to OPERABLE status or placed in the tripped condition.

I 3/4 3-4 CALVERT CLIFFS

_,y

.-,-,--_,-.,-e,

,,.m.,_-v_,.

_ ~ _,, _ _ -. _,. -.,. _ _ _

~.

TABLE 3.3-1 (Continued)

ACTION STATEMENTS Within one hour, all functional units receiving an b.

input from the inoperable channel are also placed in

~

the same condition (either bypassed or tripped, as applicable) as that required by a. above for the inoperable cha6nel.

The Minimum Channels OPERABLE requirement is met; c.

however, one additional channel may be bypassed for up to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months while perfortning tests and maintenance on that channel provided the other inoperable channel is placed in the tripped condition.

l With the number of channels OPERABLE one itss tham requ' red ACTION 3 by the Minimum Channels OPERABLE requirement, verify compli-ance with the SHUTDOWN MARGIN requirements of Spe:cification 3.1.1.1 or 3.1.1.2, as applicable, witnin 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter.

i With the number of channels OPERABLE one less tha n required l

ACTION 4 by the Minimum Channels OPERABLE requirement, be in HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; however, one channel may.ce

(

bypassed far up to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months for surveillance testin.g per Specificacion 4.3.1.1.

l l

I I

l 4

i 3/4 3-5 CALVERT C1.IFFS

ItgTRUMENT/. TION 3/4.3.2 ENGINEERED SAFETY FEATURE ACTUATIOfi SY5 TEM INSTRUMEtiTATIOri 9

LIMITING CONDITION FOR OPERATION 3.3.2.1 The Engineered Safety Feature Actuation System (ESFAS) instru-mentation channels and bypasses shown in Table 3.3-3 shall be OPERABLE i

l with their trip setpoints set consistent with the values shown in the Trip Setpoint column of Table 3.3-4 and with RESPONSE TIMES as shown in Table 3.3-5.

APPLICABILITY: As'shown in Table 3.3-3.

i ACTIGN:

With an ESFAS instrumentation channel trip setpoint less a.

conservative than the value shown in the Allowable Yalues column of Table 3.3-4, declare the channel inoperable and apply the applicable ACTION requirement of Table 3.3-3 until the channel is restored to OPERABLE status with the trip set-point adjusted consistent with the Trip Setpoint value.

b.

With an ESFAS instrumentation channel inoperable, take the ACTION shown in Table 3.3-3.

SURVEILLANCE REQUIREMENTS 4.3.2.1.1 Each ESFAS instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL CALIBRATION l

(

and CHANNEL FUNCTIONAL TEST operations darir.g the MODES and at the l

frequencies shown in Table 4.3-2.

4.3.2.1.2 The logic for the bypasses shall be demonstrated OPERABLE during the at power CHANNEL FUNCTIONAL TEST of channels affected by bypass operation. The total bypass function shall be demonstrated OPERABLE at least r,nce per 18 months during CHANNEL CALIBRATION testing of each channel affected by bypass operation.

4.3.2.1.3 The ENGINEERED SAFETY FEATURES RESPONSE TIME of each ESFAS function shall be demonstrated to be within the limit at least once per 18 months. Each test shall include at least one channel per function such that all channels are tested at least once every N times 18 months where N is the total number of redundant channels in a specific ESFAS function as shown in the " Total No. of Channels" Column of Table 3.3-3.

CALVERT CLIFFS 3/4 3-10

- ~

i,

(

TABLE 3.3-3 l,

51 G

'}

ENGINEERED SAFETY FEATURF,. ACTUATION SYSTEM INSTRUMENTATION HINIMUM r-4*

TOTAL NO.

CHANNELS CilANNELS APPLICABLE 31 FUNCTIONAL UNIT OF CHANNELS TO 1 RIP OPERABLE MODfS ACTION 1.

SAFETY INJECTION (SIAS) a.

Manual (Trip Buttons) 2 1

2 1,2,3,4 6

b.

Containment Pressure -

High 4

2 3

1, 2, 3 7*

c.

Pressurizer Pressure -

Low 4

2 3

1,2,3(a) 7*

1 l

2.

CONTAINMENT SPRAY (CSAS) a.

Manual (Trip Buttons) 2 1

2 1, 2, 3, 4 6

i i

5d b.

Containment Pressure --

l High 4

2 3

1,2,3 11 Y'd 3.

CONTAINMENT ISOLATION (CIS) a.

Manual CIS (Trip 1

Buttons) 2 1

2 1,2,3,4 6

1 i

b.

Containment Pressure -

l High 4

2 3

1,2,3 7*

j l

TABLE 3.3-3 (Continued) l f2 ENGINEEREO SAFETY FEATURE ACTUATION SYSTEM INSTRtJHrNTATION sin~'

HINIMUM r

TOTAL NO.

CHANNELS CllANNELS APPLICABLE '

2 j

FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION i

4.

MAIN STEAM LINE ISOLATION a.

Manual (MSIV i

Hand Switches i

and Feed Head Isolation Hand Switches) 1/ valve 1/ valve 1/ valve 1, 2, 3, 4 6

b.

Steam Generator 4/ steam 2/ steam 3/ steam 1,2,3(c) 7*

Pressure - Low generator generator generator 1

5.

CONTAINMENT SUMP RECIRCULATION (RAS) i Id a.

Manual RAS (Trip

[l Buttons) 2 1

2 1, 2, 3, 4 6

E$

b.

Refueling Water Tank - Low 4

2 3

1, 2, 3 7*

l e

e l

I l

l l

l g

P TABLE 3.3-3 (Cnntinued) g G

ENGINEERED SAFETY FEATURE ACTUATION SYSILM _INSTRIMINTATI0tt "i

M MINIMM i

p TOTAL NO.

CilANNELS CilANNELS APPLICA6LE i

j y

l'imCTIONAL (MIT OF CllANNELS TO TRIP OPERAllLE_

tt00I5 ACTION 6.

CONTAllMENT PUHGE VALVES ISOLATION a.

Hamsal (Purge Valve 2/ Penetration 1, 2, 3, 4 6

Control Switches) 2/ Penetration 1/ Penetration I

h.

Containment Radiation -

liigh Area Monitor 4

2 3

6 a

7.

LOSS OF POWER m2 a.

4.16 kw Emergency Bus lindervoltage (Loss of

.L Voltage) 4/ Bus 2/ Bus 3/ Bus 1, 2, 3 7*

m I

]

b.

4.16 kw Emergency Bus Undervoltage (0egraded Voltage) 4/ Bus 2/ Bus 3/ Bus I, 2, 3 7*

i 4

I W

^

o TARLE 3.3-3 (Continucil)

C G

ENCilNEERED SAFETY FEATURE ACTUAT10tl SYSTEN INSTRilHEllTAT10tl fy i

-i i

HINitVt i

l3 TOTAL NO.

Cl8.ANNELS CllAtlNELS Al'PLIEABLE 4

O I

3 FUNC1n0NAL UNIT OF CilANNELS TO 1 RIP _

OP[RAllLE 1100E5__

ACTION _

1 l

R.

CVCS ISOLATION l

a.

Manual (CVCS 1/ Valve 1/ Valve 1/ Valve 1.2.3.4 6

c Isolation Valve Control Switches) l b.

West Penetraf,lon 4

2 3

1.2,3.4 7

i l

Room /Letdownlleat Fxchanger Room

)

Pressure - liigh M.

i:

i 1

a 1

l l

l

l TABLE 3.3 3 (Continuedi TABLE NOTATION Trip function may be bypassed in this it00E when pressurizer (a) pressure is < 1700 psia; bypass shall be automatically removed when pressurizer pressure is 1 1700 psia.

Trip function may be bypassed in this MODE below 685 psia; bypass (c) shall be autcmatically removed at or above 685 psia.

The provisions of Specification 3.0.4 are not applicable.

ACTION STATEMENTS With the number of OPERABiE channels one less than the ACTION 6 Total humoer of Channels, restore tne inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in at least l

HOT STANDSY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUT 00WN witnin the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

With tne number of OPERABLE channels one less than the ACTION 7 Total Number of Channels, operation may proceed provided the following conditicns are satisfied:

The inoperable channel is placed in either the bypassed a.

or tripped condition within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

For the purposes

^

of testing and maintenance, the inoperable channel may be bypassed for up to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months from time of initial loss of OPERA 3ILITY; however, the inoperable channel shall then be either restored to OPrRASLE status or placed in the tripped condition.

Within one hour, all functional units receiving an input b.

from the inoperable channel are also placed in the sane condition (either bypassed or tripped. as applicab1e) as that required by a. above for the inoperable crannel, The Minimum Channels OPERABLE requirement is met; c.

however, one additional channel may be bypassed for up to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months while performing tests and maintenance on that channel provided the other inoperable channel is placed in tne tripped condition.

4 CALVERT CLIFFS 3/4 3-15

-_,y_

~...

TABLE 3.3-3 (Continued)

With less than the Minimum Channels OPERABLE, operation ACTION S may continue provide the containment purge valves are maintainid closed.

With the number of OPERABLE Channels one less than the ACTION 11 -

Total Number of Channels, operation may proceed provided the inoperable channel is placed in the bypassed condition and the Minimum Channels OPERABLE requirement is demonstrated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ; one additional channel may be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing per Specification 4. 3. 2.1.

e e

\\

1 l

CALVERT CLIFFS 3/4 3-16

.. ~

_

ML19345H142

Text

Navigation menu

Search