ML20073B640

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Proposed Tech Specs,Adding Use of Second Level of Undervoltage Protection
ML20073B640
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 04/07/1983
From:
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20073B618 List:
References
NUDOCS 8304120483
Download: ML20073B640 (19)
v • d • e


Text

. , 1 e-  :,- ,

  • 1 i

1 0

h ENCLOSURE -

SEQUOYAH NUCLEAR PLANT PROPOSED TECHNICAL SPECIFICATIONS TVA-SQN-TS-36 CHANGE NO. 5 i

i

~

ADDITION OF SECOND LEVEL OF UNDERVOLTAGE PROTECTION

+

i f

a 4

=

i PDR . _ .

9' v

. = - w- . _ _ . _ _. _ .

.. J,

N TABLE 3.3-3 (Continuedl .. ;q ENGINEERED SAFETY FEATURE ACTUATIGH SYSTEH INSTRifNENTATION

~ '

k,+f .. * . HINIMUH

/

CllANNELS CilANNELS APPLICADLE N TOTAL NO.

OPERABLE H0 DES ACTION OF CHANNELS TO TRIP

$ FUNCTIONAL UNIT I

7.

LOSS OF POWER i ~

E~ a. 6.9 kv Shutdown Board ,

G -Loss of Voltage

  1. 1 loss of 2/ shutdown 1, 2, 3, 4 20*
1. Start Diesel 2/ shutdown Generators' board vcltage on board any shutdown ~

y board . .

Load Shedding 2/shutdowa 1/ shutdown 2/ shutdown 17 2, 3, 4 20* .

2. -

- - board board board A , -

bl 6.9 kv Shutdown Board

. Degraded Voltage ,

w Voltage Sensors 3/ shutdown 2/ shutdown 2/ shutdown 1, 2, 3, 4 20*

il.

1 board board board .

u O 2. Diesel Generator 2/ shutdown 1/ shutdown 1/ shutdown 1,2,3,4 20*

" Start and Load board board board -

Shedding Timer

3. SI/ Degraded' 2/ shutdown 1/ shutdown 1/ shutdown: 1, 2,'3, 4 20*

Voltage Enable board board' board ,

Timer ,

8. ENGINEERED SAFETY FEATURE ACTUATION SYSTEH INTERLOCKS 2 2 1, 2,.3 22a
a. Pressurizer Pressure - 3 Not P 'il .

4 2 3 1,2,3 22b

b. T,yg - P-12 .

3/ loop 2/ loop .1/ loop 1, 2 22c ,

c. Steam _ Generator Level P-14 any loop

-NOTE: This technical- specification to be implemented at-the startup :

  • following'the next refueling outage or following completion of the

4-

, t .

~

E! .

.o '

TABLE 3.3-3 (Continued) g .

5 ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION

!ii HINIMUH y TOTAL NO. CHANNELS CHANNELS APPLICABLE g TO TRIP OPERABLE H0 DES ACTION FUNCTIONAL UNIT OF CHANNELS f

9. AUTOMATIC SWI1CHOVER TO CONTAIHMENT SUHP 2 3 1, 2, 3, 4 18 A. RWST Level - Low 4 u,

COINCIDENT WITH Containment Sump 3:

Level - High 4 2 3 1,2,3,4 18 u, '

L AND

- Safety Injection (See 1 above for Safety Injection Requirements)

ET

, Note: Manual switchover of RHR pump suction from the RWST to containment sump will-

- be employed until containment sump level indicators are returned OPERABLE. '

Automatic.switchover is not required OPERABLE during the interim. This note 18,1982).

'will remain in effect for a period not to exceed 30 days (July ,I

NOTE: This technical specification to be implemented at the startup following the next refueling outage or.following completion of the modification, whichever is earlier.

p-i ~

j TABLE 3.3-4 (Continutd) _

t ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP SETPOINTS -

. FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES E. 6. . AUXILIARY FEEDWATER .

Not Applicable Not Applicable

]' a.

b.

Manual Automatic Actuation Logic Not Applicable Not Applicable

c. Main Steam Generator Water Level-low-low > 21% ef narrow range > 20% of narrow range Tnstrument span each Tnstrument span each steam generator . steam generator
d. S.I. .

See 1 above (all SI Setpoints)

e. Station Blackout 0 volts with a 5.0 second 0 volt's with a 5.0 1 1.0 second w time delay ~t ime delay s
  • T' Pumps

" g. Auxiliary Feedwater Suction 1 2 psig (motor driven pump) 1 1 psig (mptor driven pump)-

Pressure-Low 1 6.5 psig (turbine driven 3 5.5 psig (turbine driven

. . . . pump) pump) .

7. LOSS OF POWER-
a. 6.9 kv Shutdown Board Undervoltage-Loss of Voltage
1. Start of Diesel Generators
j. a. Nominal Voltage Setpoint 4860 volts 4860 volts +.97.2 volts
b. Relay Response Time for 0 volts with a 1.5 second 0 volts with a 1.5'10.5 Loss of Voltage time delay second time delay
2. Load Shedding
a. Nominal-Voltage'Setpoint 4860 volts 4860 volts i 97.2 volts
b. Relay Response Time for 0 volts with a 5.0 second 0 volts with a 5.0 11.0 Loss of Voltage. time delay second time delay NOTE: This technical specification to be implemente'd at the startup

- following the next ' refueling outage or following completion of the

, modification, whichever is earlier.

9

- ., . - -. - . . . - - - - - . . . . . = ~ - - - - . - .

t t

  • TABLE 3.3-4 (Continued) m d, -

j '

ENGINEERED SAFETY FEATURE ACTUATION* SYSTEM INSTRUMENTATION TRIP SE1 POINTS Y< .

TRIP SETPOINT ALLOWABLE VALUES FUNCTIONAL UNIT 7 ..-. ..

E G -

w

b. 6.9 kv Shutdown Board- Degraded ,

Voltage 6560 volts 6560 volts + 33 volts

1. Voltage Sensors 2.' Diesel Generator Start and 300 seconds 300 seconds + 15 s,econds .

Load Shed Timer -

~,

' v~, - ~ .

/ /_

3. SI/ Degraded Voltage Logic / '.

' 10 seconds 10 seconds +;005 seconds .

R Enable Timer ,i

  • \

T .

!3 ,

o . .

8. ENGINEERED. SAFETY FEATURE-ACTUATION SYSTEM INTERLOCKS .
a. Pressurizer Pressure $ 1980 psig Manual Block of Safety Injection P-11 5 1970 psig P

NOTE: This technical specification to be implemented at the startup following the next refueling outage or following completion of the modification, whichever is earlier. '

g _.. .

I 4

. . o TABLE 3.3-S (Continued)

ENGINEERED SAFETY FEATURES RESPONSE TIMES ('

INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS-

10. Station Blackout
a. Auxiliary Feedwater Pumps -

1 60

11. Trip of Main Feedwater Pumos a Auxiliary Feedwater Pumps 5 60
12. Loss of Power
a. 6.9 kv Shutdown Board - Degraded 5 10(10)

Voltage or Loss of Voltage l

13. RWST Level-Low Coincident with Containment Sump Level-Hich and Safety In_iection
a. Automatic Switchover to Containment Sump 5 250
14. Containment Purge Air Exhaust -

Radioactivity - High  ;

a. Containment Ventilation Isolation 5 10(6)
15. Containment Gas Monitor ,

Radioactivity High

a. Containment Ventilation Isolation i 10(6)
16. Containment Particulate Activity High
a. Containment Ventilation Isolation i 10(6) i SEQUOYAH - UNIT 1 ,

3/4 3 - - -

l I

NOTE: This technical specification to be implemented at the startup following the next-refueling outage or following completion of the modification, whichever is earlier.

..z..:...... .--

4 INSTRUMENTATION TABLE 3.3-5 (Continued)

TABLE NOTATION (1) Diesel generator starting and requence loading delays included. Response time limit includes opening of valves to estabif sh SI path and attainment of discharge pressure for centrifugal charging pumps, SI and RHR pumps.

(2) Using air operated valve i .

i (3) Valve FCV-70-143.is an. exception to the respon'se time shown in the table and will have the following values in seconds for the initiating signal a

and function indicated. ,

2.d.

3~d 6261((8)f7)(9)

)

i 4.d. 61(8)/71(9) 9)

5.d. 64(8)f74((9) 6.d. 61(8)f7)

(4) On 2/3 any Steam Generator

(5) On 2/3 in 2/4 Steam Generator (6) Radiation detectors for Containment Ventilation Isolation may be excluded from Response Time. Testing.

(7) Diesel generator starting and sequence loading delays not included.

Offsite power available. Response time limit includes opening of valves to establish SI path and attainment of discharge pressure for centr'ifugal q charging pumps. .

(8) Diesel generator starting and sequence loading delays not included.

Response time limit includes operating time of valves.

'(9) Diesel generator starting and sequence loading delays included. Response time limit includes operating time of valves.

(10) The response time for loss of voltage is measured from the time voltage is lost until the time full voltage is restored by the diesel. The response time for degraded voltage is measured from the time the. load shedding signal is generated, either from the degraded voltage or the SI enable timer, to the' time full voltage is restored by the diesel.

The response time of the timers are covered by the requirements on their setpoints.

W l

SEQUOYAH - UNIT 1 3/4 3-33 NOTE: This technical specification- Eo be imp'lemented"at' the startup following the next refueling outage or following completion of the

. modification, whichever is. earlier.' -

TABLE 4.3-2 (dontinuedl . .

~E ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION

-c - ,

- SURVEILLANCE REQUIREllEllIS

$'hx . ..

' CHANNEL H0 DES IN WHICH FUNCTIONAL SURVEILLANCE CHANNEL CHANNEL

.E' CHECK Call 8 RATION TEST .

REQUIRED ,

Z FUNCTIONAL UNIT w .

H 1, 2, .i

c. Main Steam Generator Water S, .R Level-Low-Low
d. S.I. See 1 above (all SI surveillance reoufrements)

N.A. R N.A. 1, 2, '3 e.' Station Blackout .

^'

  • N.A. H;A.

R ', 1, 2

f. Trip of-Main Feedwater -

Pumps M 1, 2, 3 .

.g. Auxiliary Feedwater Suction N.A. R .

Pressure - Low .

7. LOSS OF POWER ,

R.

  • i., a. 6.9 kv Shutdown Board - ,

Loss of Voltage ,

1, 2, 3, 4 Start Diesel Genera. ors S R .H .

-- 1.

R N.A. 1, 2, 3, 4

2. Load Shedding, S . . ' '
b. 6.9 kv Shutdown Boar'd -

Degraded Voltage S R M 1, 2, 3, 4

-1. Voltage sensors N.A. R N.A. 1,2,3,4

2. Diesel Generators Start and Load Shedding Timer
3. SI/ Degraded Voltage' N.A. R N.A. 1, 2, 3, 4 Logic Timer

-NOTE: This technical specification to be implemented at-the startup ,

following the next. refueling outage or following completion of the modification, whichever is earlier.

i .

l~ TABLE 4.3-2 (Continuedl .

M ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTA jl

- SURVEILLAllCE REQUIREMENIS E .

CHANNEL H00ES IN WHICH

' SURVEILLANCE CHANNEL FUNCTIONAL CHANNEL REQUIRED TEST E CHECK _ CALIBRATION Z FUNCTIONAL UNIT

~ , .

8. ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INTERLOCKS R (4) N.A. 1, 2, 3 Pressurizer Pressure, N.A.
a. '

P-11 N.A. 1, 2, ~ 3 N.A. .

R (4)

b. T,yg, P-12 N.A. 1, 2 i N.A. R (4)

,, c. Steam Generator -

' ;: Level, P-14 .

  • i; .
9. AUTOMATIC 'SWITCHOVER,To ,
  • CONTAINHENT SUHP ./ '

H 1 , 2 , 3 , 4 ."

S 'R

a. RSVT Level - Low ' .

COINCIDENT WITH ' R H 1,2,3,4 Containment Sump Level - High 5 AND .(See l' above for all Safety Injection Surveillance Requirements) .

Safety Injection.

1 NOTE: This technical specification to be implemented at the startup following the next refueling outage or following completion of the modification, whichever is earlier. ~

Note: ~ be employed until containment sump levei_ This note indicators are returr.ed O Automatic switchover is not required OPERABLE during the interim. 18,1982).

will remain in effect for a period not to exceed 30 days (July

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4

d. At least once per 18 months by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test.
e. At least once Der 60 months by verifying that the battery capacity is at least 82t of the manufacturer's rating when subjected to a performance discharge test. Once per 60 month interval, this perfo'mance r discharge test may be performed in lieu of the battery service test.
f. Annual performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance ' tests, or is below 90% of the manufacturer's rating.

4 U

NOTE: This technical specification to be implemented at-the startup following the next refueling outage or following completion of the modification, whichever is earlier.

1 SEQUOYAH - UNIT 1 3/4 8-13

.a

- . , r, e ,

' s O

e4 TABLE 3.3-3 (ContinucJ), ,

.9 Qp EllGIllEERED SAFETY FEATURE ACTUATIO!! SYSTEH IllSTituNEllTATION 14 e .

n HillIMUH ,

EE CilAllllELS APPLICABLE E TOTAi.110. CilANNELS TO TRIP OPERABLE H0 DES ACTION EE

    • E $ FUNCTIONAL UNIT OF CHANilELS o 0 -<

h[

ne

7. LOSS OF' POWER n' N E a. 6.9 kv Shutdown Board .

-Loss of Voltage E[**Z 1 loss of 2/ shutdown 1, 2, 3, 4 20" iO N 1. Start Diesel 2/ shutdown board voltage on board 5h na Generators any shutdown board 1/ shutdown 2/ shutdown 1, 2, 3, 4 20*

.5

  • 2. Load Shedding - 2/ shutdown board board board

[8 I-E cr o" b .- 6.9 kv Shutdown Board

. Degraded Voltage 5g'

% ". 2/ shutdown 2/ shutdown 1, 2, 3, 4 20*

F$w 1. Voltage Sensors 3/ shutdown.

board board board

$. A Ew Diesel Generator 2/ shutdown 1/ shutdown 1/ shutdown 1,2,3,4 20*

" A "

2.

board board Start and Load board

% Shedding Timer

5. 3. SI/ Degraded 2/ shutdown 1/ shutdown 1/ shutdown 1, 2, 3, 4 20*

y Voltage Enable -board board board f,

Timer -

8. ENGINEERED SAFETY FEATURE-ACTUATION SYSTEH INTERLOCKS 3 2 2 1, 2, '3 22a
a. Pressurizer Pressure -

Not P-11 ..

4 2 3 1,2,3 22b

b. T,,g - P-12 3/ loop 2/ loop 3/ loop 1. 2 22c

. c. Steam Generator Level P any' loop

. .__.m . . _ . _ . _ _ _ . . _ _ _ _ _ . . _ _ . _ _ . _ . _ _ _ _ . _ . _ _ _ _ . _ . _ . . . . . . . _ _ _ . _ . _ . ._ .. _ _ _ . . . . _ . _

E

.g y 4 c yg o

  • TABLE 3.3-3 (Cohtinued) 4" 8 - *8 .

.m E P E. N ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION VQ E~

E HINIMUM

- # .0 . tj CllANNELS CilANilELS APPLICABLE y TOTAL NO.

y y OF CHANNELS TO TRIP OPERABLE H0 DES ' ACTION gg FUNCTIONAL UNIT

- m R-nn g%

EE ~ 9. AUTOMATIC SWITCHOVER TO

- I "p g CONTAlliHENT.SUHP a '

1, 2, 3, 4 18 2 3 "E A. RWST Level - Low 4 cr w COINCIDENT WITH E4 1- Containment Sump .

j (h w-4, Alto Level - High 4 2 3 1,2,3,4 18 .

"n Safety Injection (See 1 above for Safety Injection Requirements)

E s ,

a -

E i g.

M E

u Note: Manual switchover of RHR pump suction from the RWST to containment sump will be employed until containment sump level indicators are returned OPERABLE.

Automatic switchover is not required OPERABLE during the interim. This note

'will remain in effect for a period not to exceed 30 days (July 18,1982). ,.

.Il-'

d

- __O

1 TABLE 3.3-4 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP SETPOINTS -

    • . TRIP SETPO NIT ALLOWABLE VALUES ,

FUNCTIONAL UNIT E 6. AUXILIARY FEEDWATER

a. Manual Not Applicable Not Applicable
b. Automatic Actuation Logic Not Applicable Not Appifcable
c. Main Steam Generator > 20% of narrow range Water Level-low-low > 21% of narrow range Tnstrument span each Instrument span each steam generator . steam generator
d. S.I. .

See 1 above (all SI Setpoints) ,

e. Station Blackout 0 volts with a 5.0 second 0 volts with a 5.0 1 1.0 second time delay time delay g N.A.
  • 1 Y Pumps

" g. Auxiliary Feedwater Suction 1 2 psig (motor driven pump) 1 1 psig (mptor driven pump)

Pressure-Low 1 6.5 psig (turbine driven 1 5.5 psig (turbine driven pump) pump)

7. LOSS OF POWER .,
a. 6.9 kv Shutdown Board

. Loss of Voltage

1. Start of Diesel Generators
a. _ Nominal Voltage Setpoint 4860 volts 4860 volts g 97.2 volts
b. Relay Response Time for 0 volts with a 1.5 second 0 volts with a 1.5 10.5 Loss of Voltage time delay- second time delay
2. Load Shedding
a. Nominal Voltage Setpoint 4860 volts 4860 volts i 97.2 volts b ~. Relay Response Time for . O volts with a 5.0 second 0 volts with a 5.0 11.0 -

Loss of Voltage time delay second time delay ,

NOTE: This technical specification is to be implemented during the startup following the next refueling outage.

% '(

TABLE 3.3-4 (Continued) en j$ ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP SETPOINTS -

g. .

7 FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES g

.z i

N

b. 6.9 kv Shutdown Board- Degraded Voltage
1. Voltage Sensors 6560 volts 6560 volts + 33 volts 2.~ Diesel Generator Start and Load Shed Timer 300 seconds 300 seconds + 15 seconds
3. SI/ Degraded Voltage Logic /

Enable Timer ' s, 10 seconds 10. seconds + 0.5. seconds s

Y N. s .'

t:

  • O
8. ENGINEERED SAFETY FEATURE -

ACTUATION SYSTEM INTERLOCKS ,

a. Pressurizer Pressure i 1980 psig Manual. Block of Safety Injection P-1151970 psig NOTE:

This' technical specification-is to be implemented during the

-startup following the next refueling outage.

S 5

l TABLE 3.3-5 (Continued)

' ENGINEERED SAFETY FEATURES RESPONSE TIMES (

INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS

10. Station-Blackout .

4

a. Auxiliary Feedwater Pumps -

1 60

11. Trio of Main Feedwater Pumos a Auxiliary Feedwater Pumps 1 60
12. Loss of Power i a. 6.9 kv Shutdown Board - Degraded i 10(10) i Voltage or Loss of Volta'ge

,. /

I

13. RWST Level-Low Coincident with Containment Sumo Level-High and Safety Injection
a. Automatic Switchover to '

Containment Sump i 250

14. Containment Purge Air Exhaust
  • 4 Radioactivity - High -
a. Containment Ventilation Isolation i 10(6)
15. Containment' Gas Monitor Radioactivity High
a. Containment Ventilation Isolation i 10(6)
16. Containment Particulate Activity High
a. Containment Ventilation Isolation i 10(6)

SEQUOYAH - UNIT 2, 3/4 3-32 --

NOTE: .This technical specification is to be implemented during'the startup following the next refueling outage.

f . - - . >

F s

^*~

INSTRUMENTATION TABLE 3.3-5 (continued)

TABLE NOTATION (1) Diesel generator starting and requence loading delays included. Response time limit includes opening of valves to establish SI path and attainment.

3- of discharge pressure for centrifugal charging pumps, SI and RHR pumps.

(2) Using air operated valve (3) Valve 'FCV-70-143 is an exception to the respon'se time shown in the table and will have the following values in seconds for the initiating signal and function indicated.

2.d. 61(0)/71(0) 3.d. 62 50) 4.d. 61(8)j7)((9) 5.d. 6458)/74 9) 6.d. 6150)/71 C)

(4) On 2/3 any Steam Generator -

, (5) On 2/3 in 2/4 Steam Generator (6) Radiation detectors for Containment Ventilation Isolation may be excluded from Response Time Testing.

(7) Diesel generator starting and sequence loading delays not included.

Offsite power available. Response time limit includes opening of' valves

' to establish SI path and attainment of discharge pressure for centrifugal charging pumps.

(8) Diesel generator starting and sequence loading delays not included.

Response time limit includes operating time of valves.

(9) Diesel generator starting and sequence loading delays included. Response

. time limit includes operating time, of valves.

(10) The response time for loss of voltage is measured from the time voltage is lost until the time full voltage is restored by the diesel. -The response time for degraded voltage is measured from'the time the load

}

shedding signal-is generated, either from the degraded voltage or the SI enable timer, to the time full voltage is restored by the dicuel.

The response time of the timers are covered by the requirements on their setpoints.

l SEQUOYAH - UNIT 2 3/4 3-33 NOTE: This technical specification is to be implemented during the startup following the next-refueling outage. 4 1

, e- .

a r -

c e-- ., -

U -

TABLE 4.3-2(Continuedl I M E-

  1. ENGINEERED SAFETY FEATURE ACTUATION SYSTEH INSTRUMENTATION

- SURVEILLAtlCE REQUIREllENTS

$.hx .

  • CHANNEL H0 DES IN WHICH FUNCTIONAL. SURVEILLANCE E' CHANNEL CHANNEL TEST REQUIRED U FUNCTIONAL UNIT CHECK CALIBRATION . .

n -

1, 2,~3

c. Main Steam Generator Water S., R H Level-Low-Low
d. S. I. See 1 above (all SI surveillance requirements)
e. Station Blackout H.A. li N.A. .

1, 2, 3

  • ^*
f. ,

Pumps ,

Auxiliary Feedwater Suction N.A. R M 1, 2, 3 .

g. . ,

Pressure - Low R 7. LOSS OF POWER- .

b

a. 6.9 kv. Shutdown Board - ,

O w

. Loss of Voltage

1. -start Diesel cenera. tors S R H 1,2,3,4
2. Load Shedding, S . R N.A. ,

1, 2, 3, 4

~~

b. 6.9 kv Shutdown Board -

Degraded Voltage

1. Voltage sensors' S R M. 1,2,3,4
2. Diesel Generators N.A. R N.A. 1, 2, 3, 4 Start and Load Shedding Timer
3. SI/ Degraded Voltage N.A. R N.A. 1,2,3,4 Logic Timer

-NOTE: This technical specification is to be implemented during the startup following the next refueling outage, j

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

t TABLE 4.3-2 (Continued)

N E ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATI0li -

- SURVEILLAllCE REQUIREllfNTS 1 .

CHANNEL H0 DES IN WHICli CilANNEL FUllCTIONAL SURVEILLANCE CHANNEL E CALIBRATION TEST .

REQUIRED C- FUNCTIONAL UNIT CllECK _

r n

- 8. ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INTERLOCKS H.A. R (4) H.A. 1, 2, 3

a. Pressurizer Pressure, ,

t P-11 N.A. R (4) N.A. 1,2,3

b. T,yg, P-12 ,

N.A. R (4) H.A. 1, 2 .

m c. Steam Generator -

3 Level, P-14 -

y . .

1 t 9. AUTOMATIC SWITCHOVER* TO .

./

a. RSVT Level - Low S ,

'R H 1, 2, 3, 4 COINCIDENT WITH '

Containment Sump Level .High S R H 1, 2, 3, 4 AND Safety Injection (See 1 above for all Safety Injection Surveillance Requirements)

NOTE:

This technical specification is to be implemented during the startup following the ne::t refueling outage. ..

~

Note: Manual switchover of RHR pump siuction from the RWST to containment sisnp will '

be employed until contaimient sump level indicators.are returned OPERABLE.

Automatic switchover is not required OPERABLE during the interim. This note will reraain in effect for a period not to exceed 30 days-(July 18,1982). [

4 m _ _ _ .

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) l

d. At -least once per 18 months by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test,
e. At least once per 60 months by verifying that the battery capacity is at least 82% of the manufacturer's rating when subjected to a performance discharge test. Once per 60 month interval, this performance discharge test may be performed'in lieu of the battery service test.

i f. Annual parformance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.

l

[

NOTE: This technical specification is to be implemented during the startup following the next refueling outage.

SEQUOYAH - UNIT _2 3/4.8-13 t ; s_ -

.

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