ML19257D555

Proposed Revisions to Tech Specs Re Automatic Initiation of Auxiliary Feedwater

ML19257D555
Person / Time
Site:	Millstone
Issue date:	01/31/1980
From:	NORTHEAST UTILITIES
To:
Shared Package
ML19257D550	List: ML19257D549 ML19257D553 ML19257D555
References
NUDOCS 8002040598
Download: ML19257D555 (7)

Text

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DOCKET NO. 50-336 ATTACHMENT 3 MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 AUTOMATIC INITIATION OF AUXILIARY FEEDWATER - PROPOSED REVISIONS TO TECHNICAL SPECIFICATIONS 1867 239 JANUARY, 1980 econoao 57g

TABLE 3.3-3 (Continued) h ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION Ug MINIMUM M

TOTAL NO.

CHANNELS CHANfdLS APPLICABLE FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION C5 7.

CONTAINMENT PURGE VALVES ISOLATION N

a.

Manual CIAS (Trip Buttons) 2 1

2 1,2,3,4 6

b.

Manual SIAS (Trip Buttons) 2 1

2 1,2,3,4 6

c.

Automatic CIAS Actuation Logic 2

1 2

1,2,3 6

R d.

Containment Radiation -

High Y

Gaseous Monitor 1(d) 1(d) 1 1,2,3,4,6 8

Particulate Monitor 1(d) 1(d) 1 1,2,3,4,6 8

8.

LOSS OF POWER k

a.

4.16ky Emergency Bus

.T."

Undervoltage (Under-v61tage relays) - level 4/ Bus 2/ Bus 3/ Bus 1, 2, 3 7

8 one e

b.

4.16kv Errergency Bus M

13 m

Undervoltage (Under-voltage relays) - level N

two 4/ Bus 2/ Bus S/ Bus 1,2,3 7

ro 9.

AUXILIARY FEEDWATER n

C) a.

Mailual 2

1 1

1,2,3 6

b.

Steam Gei.erator Level - Low 4/SG 2/SG 3/SG 1,2,3 9

August 31, 1976 TABLE 3.3-3 (Continued)

ACTION 8 -

With one or more channels inoperable, operation may continue provide the containment purge valves are main-tained closed.

ACTION 9 -

With the number of OPERABLE channels one less than the Total Number of Channels, operation may proceed provided the following cond'itions are satisfied:

a.

The inoperable channel is placed in the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. '

b.

All functional units receiving an input from the tripped channel are also placed in the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

12 c.

The Minimum Channels OPERABLE requirement is met; however, one additional channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing per Specification 4.3.2.1.

MIt.LSTONE - UNIT 2 3/4 3-17

(

August 30, 1976 TABLE 3.3-4 (Continued) f ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES m

EE ALLOWABLE

['

FUNCTIONAL UNIT TRIP VALUE VALUES 8.

LOSS OF POWER w

n>

a.

4.16 kv Emergency Bus Undervoltage (Undervoltage relays) - level one 3,2912 volts 3.2912 volts b.

4.16 kv Emergency Bus Undervoltage

>-3700 volts with

> 3700 volts with (Undervoltage relays) - level two ih 8.0 + 2.0 second ih 8.0 + 2.0 second time deTay time deTay 9.

AUXILIARY FEEDWATER 4

a.

Manual Not Applicable Not Applicable

?>

b.

Steam Generator Level - Low 2.36%

z.35.2 0

Os N

N

_c-N

May 12, 1979 TABLE 3.3-5 ENGINEERED SAFETY FEATURES RESPONSE TIMES INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS 1.

Manual a.

SIAS Safety Injection (ECCS)

Not Applicable Containment Isolation Not Applicable Enclosure Building Filtration System Not Applicable b.

CSAS Containment Spray Not Applicable c.

CIAS Containment Isolation Not Applicable d.

SRAS i

Containment Sump Recirculation Not Applicable e.

EBFAS Enclosure Building Filtration System Not Applicable f.

Auxiliary Feedwater System Not Applicable l

2.

Pressurizer Pressure-Low Safety Injection (ECCS) a.

1)

High Pressure Safety Injection 1 30.0*/5.0**

2)

Low Pressure Safety Injection 1 50.0*/5.0**

3)

Charging Pumps 1 40.0*/40.0**

en 4)

Containment Air Recirculation System 1 31. 0*/ 31. 0**

b.

Containment Isolation 1 7.5 c.

Enclosure Building Filtration System 1 50.0*/50.0**

lan

}8b7 243 MILLSTONE - UNIT 2 3/4 3-21

~

May 12, 1979 TABLE 3.3-5 (Continued)

ENGINEERED SAFETY FEATURES RESPONSE TIMES RESPONSE TIME IN SECONDS INITIATING SIGNAL AND FUNCTION 3.

Containment Pressure-High Safety Injection (ECCS) a.

1)

High Pressure Safety Injection 1 30.0*/5.0**

2)

Low Pressure Safety Injection 1 50.0*/5.0**

3)

Charging Pumps 1 40.0*/40.0**

1. 0 4)

Containment Air Recirculation System 1 31. 0*/ 31. 0**

b.

Containment Isolation 1 7.5 Enclosure Euilding Filtration System 1 50.0*/50.0**

l4n c.

4.

Containment Pressure--High-High 35.6*I )/35.6**(l) a.

Containment Spray 1

5.

Containment Radiation-High 1 ounting period C

Containment Purge Valves Isolation a.

plus 7.5 6.

Steam Generator Pressure-Low 19 6

Main Steam Isolation a.

b.

Feedwater Isolation 1 60 7.

Refueling Water Storage Tank-Low Containment Sump Recirculation i 120 a.

8.

Steam Generator Level-Low 60*/ 60** ( 2)

Auxiliary Feedwater System 1

1867 24L TABLE NOTATION

• Diesel generator starting and sequence loading delays included.

• • Diesel generator starting and sequence loading delays not included.

Offsite power available.

(1) Header fill time not allowed.

(2)

Excludes three-minute timed delay.

MILLSTONE - UNIT 2 l

3/4 3-22

t

-r" TABLE 4.3-2 (Continued)

P ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION SURVEILLANCE REQUIREMENTS G;

CHANNEL MODES IN WHICH 5

CHANNEI CHANNEL FUNCTIONAL SURVEILLANCE FUNCTIONAL UNIT CHECK CALIBRATION TEST REQUIRED i

C5 6.

CONTAINMENT SUMP RECIRCULATION (SRAS) a.

Manual SRAS (Trip Buttoris)

N.A.

N.A.

R N.A.

b.

Refueling Water Storage Tank - Low S

R M

?,2,3 c.

Automatic Actuation Logic N.A.

N.A.

M(1) 1, 2, 3 7.

CONTAINMENT PURGE VALVES ISOLATION a.

Manual CIAS (Trip Buttons)

N.A.

N.A.

R N.A.

b.

Manual SIAS (Trip Buttons)

N.A.

N.A.

R N.A.

c.

Automatic CIAS Actuation R

Logic N.A.

N.A.

M(1) 1, 2, 3 d.

Containment Radiation - High Y

Gaseous Monitor S

R M

ALL MODES 2"

Particulate Monitor S

R M

ALL MODES

'E N

8.

LOSS OF POWER g

k a.4.16 kv Emergency Bus Undervoltage (Undervoltage g

relays) - level one S

R M

1,2,3 13 g

b. 4.16 kv Emergency Bus Undervoltage(Undervoltage relays) - level two S

R M

1,2, 3 co

~

9.

AUXILIARY FEEDWATER a.

Manual Initiation N.A.

N.A.

M*

l, 2, 3 b.

Steam Generator Level-Low S

R M

1, 2, 3 (JT

• Manual actuation switches shall be tested at least once per 18 months.

All other circuitry associated with manual safeauards actuation shall receive a CHANNEL FUNCTIONAL TEST at least once'per 31 days.

.