ML19323F255

Tech Spec Change Request for Tables 3.3-3,3.3-4,3.3-5 & 4.3-2,for Engineered Safety Features Actuation Sys Instrumentation,Trip Values,Response Times & Surveillance Requirements

ML19323F255
Person / Time
Site:	Millstone
Issue date:	05/20/1980
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML19323F249	List: A00803, Application to Amend License DPR-65,submitted as Proposed Revision to Tech Specs,In Response to NRC . Summarizes Status of Implementation of Automatic Initiation of Auxiliary Feedwater.One Pump Sufficient ML19323F255
References
TAC-42410, TAC-44705, TAC-44746, NUDOCS 8005280702
Download: ML19323F255 (7)

Text

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DOCKET NO. 50-336 ATTACIBIENT 2 MILLSTONE NUCLEAR POWER STATION, UNIT No. 2 AUTOMATIC INITIATION OF AUXILIARY FEEDWATER PROPOSED REVISIONS TO TECIINICAL SPECIFICATIONS i

)

MAY, 1980 80 052807p g

TABLE 3.3-3 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION h

MINIMUM TOTAL NO.

CHANNELS CHANNELS APPLICABLE M

MODES _

ACTION _

FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE _

7.

CONTAINMENT PURGE d

VALVES ISOLATION a.

Manual CIAS (Trip Buttons) 2 1

2 1,2,3,4 6

b.

Mariual 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 1d 1d 1

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

1,2,3,4,6 8 8.

LOSS OF POWER a.

4.16ky Emergency Bus 4/ Bus 2/Bos 3/ Bus 1, 2, 3 7

Undervoltage (Under-vb1tage relays) - level one b.

4.16kw Erergency Bus Undervoltage (Under-voltage relays) - level 4/ Bus 2/ Bus 3/ Bus 1, 2, 3 7

two 9.

AUXILIARY FEEDWATER a.

Manual 2

1 2

1,2,3 9

1,2,3 9

b.

Steam Generator Lbvel - Low 2(f) 1(f).

2

TABLE 3.3-3 (Continued)

TABLE NOTATION (a) Trip function may bs bypassed when pressurizer pressure is

< 1750 psia; bypass shall be automatically removed when pressurizer pressure is y,1750 psia.

(b) An SIAS signal is first necessary to enable CSAS logic.

(c) Trip function may be bypassed below 600 psia; bypass shall be automatically removed at or above 600 psia.

(d) Each char.nel has two sensors, high radiation level on either sensor will initiate containment purge valve isolation.

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

(f) Each channel has four (4) sensors, low steam generator water level

~

on any two (2) sensors will inithte a channel trip.

~

ACTION STATEI1ENTS ACTION 6 With the number of OPERABLE channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

ACTION 7 With the number of OPERABLE channels one less than the Total Number of Channels and with the pressurizer pressure:

a.

< 1750 psia; imediately place the inoperable channel in the bypassed condition; restore the in-operable channel to OPERABLE status prior to increasing the pressurizer pressure above 1750 psia.

b.

> 1750 psia, operation may continue with the in-

.,operable channel in the bypassed condition, provided the following conditions are satisfied:

1.

All functional units receiving an input from the bypassed channel are also placed in the bypassed condition.

2.

The liinimum Channels OPERABLE requirement is met; however, one additional channel may be removed from service 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 provided one of the inoperable channels is placed in the tripped condition.

illLLSTONE - UNIT 2 3/4 3-16

TABLE 3.3-3 (Continued)

With one or ms e channels inoperable, operation may v

i ACTION 8 continue provios the containment purge valves are main-l tained closed.

With the numbar of OPERABLE channels one less than the ACTION 9 Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, or place the inoperable component in the tripped condition, or be J

i in COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

J

(

l i

t MILLSTONE - UNIT 2 3/4 3-17 t

1

TABLE 3.3-4 (Continued)_

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION Trip VALUES G

--e

'E All.0WABLE 7

FUNCTIONAL UNIT TRIP VALUE VALUrS__

E, 8.

LOSS OF POWER m

a.

4.16 kv Emergency Bus Undervoltage (Undervoltage relays) - level one

> 2912 volts

> 2912 volts b.

4.16 ky Emergency Bus Undervoltage

> 1700 volts with

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

AUXILIARY FEEDWATER a.

Manual Not Applicable Not Applicable g

y b.

Steam Generator Level - Low

> 12%

> 10%

E$

i 9

^

TABLE 3.3-5 (Continued)

ENGINEERED SAFETY FEATURES RESPONSE TIMES INITIATING SIGNAL AND FUNCTION p.SPONSETIMEINSECONDS 3.

Containment Pressure-High a.

Safety Injection (ECCS) 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**

4)

Containment Air Recirculation System 1 31.0*/31.0**

b.

Containment Isolation 1 7.5 c.

Enclosure Building Filtration System 1 E5.0*/50.0**

4.

Containtrent Pressure--High-High 35.6*III/35.6**(I) a.

Containment Spray 1

5.

Containment Radiction-High a.

Containment Purge Valves Isolation 1 ounting period -

C plus 7.5 6.

Steam Generator Pressure-Low a.

Main Steam Isolation 6

19 b.

Feedwater Isolation 1 60 7.

Refueling Water Storage Tank-Low a.

Containment Sump Recirculation 1 120 8.

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

Auxiliary Feedwater System 1

TABLE NOTAT10fi

• 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 j

3/4 3-22 l

~

~

TABLE 4.3-2 (Continued)

ENGINEERED SAFETY FEATUPE ACTUATION SYSTEM INSTRUMENTATION SURVEILLANCE REQUIREMENTS b

CHANNEL MODES IN WHICH 5

CHANNEL CHANNEL FUNCTIONAL SURVEILLANCE i

FUNCTIONAL UNIT CHECK CALIBRATION TEST REQUIRED C5 6.

CONTAINMENT SUMP RECIRCULATION (SRAS) a.

Manual SRAS (Trip Buttons)

N.A.

.M.A.

R N.A.

b.

Refueling Water Storage Tank - Low S

R M

1. 2, 3 c.

Automatic Actuation logic N.A.

N.A.

M(1) 1, 2, 3 7.

CONTAINMENT PURGE VALVES ISOLATION a.

ManualCIAS(Tr'oButtons)

N.A.

M.A.

R N.A.

b.

Manual SIAS (",p Buttons)

N.A.

N.A.

R M.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 Particulate Monitor S

R M

ALL MODES 8.

LOSS OF POWER a.4.16 ky Emergency Bus Undervoltage (Undervoltage relays) - level one S

R M-1.2,3

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

R M

1,2, 3 9.

AUXILIARY FEEDWATER a.

Manual Initiation N.A.

N.A.

R 1, 2, 3 l

b.

Steam Generator Level-Low S

R M

1, 2, 3 s

i

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

All other circuitry associated with manual safeguards actuatim shall receive a CHANNEL FUNCTIONAL TEST at least once per 31 days.