ML20149E887

Proposed Tech Specs,Modifying Tables 3.3-2,3.3-3 & 4.3-2 to Require 18-month Functional Test of First Level Undervoltage Protection for Each of Three 480-volt Emergency Buses

ML20149E887
Person / Time
Site:	Yankee Rowe
Issue date:	01/05/1988
From:	YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML20149E882	List: ML20149E877 ML20149E887
References
NUDOCS 8801140039
Download: ML20149E887 (4)

Text

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TABLE 3.3-2 (CONTINUED)

ENGINEERING S gEGUARDS SYSTEM INSTRUMENTATION en S- TOTAL NUFBER CHANNELS MINIMUM CHANNELS

$ OF CHANNELS AND SENSORS AND SENSORS . APPLICABLE

. . :o ' FUNCTIONAL UNIT AND SENSCRS- TO TRIP OPERABLE MODES ACTION E

2. CONTAINMENT ISOLATION (Continued)

c. Actuation Channel B 1 1 1 1,2,3,4,5(1) 10 (1) High Containment 1 1 1 1,2,3,4,5(1) 10 Pressure Sensor (2) Safety Injection (All Safety Injection Initiating Functions and Requirements) v D 3. MAIN STEAM ISOLATION v

- .L a. Low Steam Line Pressure 3/ Steam Line 2/ Steam Line 3/ Steam Line 1, 2, 3(2) 6**

b.. Automatic Trip Logic 2 1 2 1, 2, 3(2) 8 i

c. Manual Initiation 2 1 2 1, 2 8

d. High Containment 2 1 2 1, 2 8 Pressure 3

Trip Containment Isolation 4

S 4. LOSS OF POWER

8. 480 VOLT EMERGENCY BUS 2

S a. Loss of Voltage (First Level) 1/ Bus 1/ Bus 1/ Bus 1, 2, 3 23

b. Degraded Voltage (Second Level) 2/ Bus 2/ Bus 2/ Bus 1, 2, 3. 22**

i b 8801140039 880105 W

• PDR ADOCK 05000029 P PDR n

ACTION STATEMENTS (continued)

23. With the number of OPERABLE channels or sensors one less than the total l number of channels or sensors, restore the inoperable bus to operable '

status within eight hours or be in at least HOT STANDBY within the next six hours and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

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YANKEE R0WE 3/4 3-13A Amendment No.

i' TABLE 3.3-3 (Continued)

ENGINEERED SAFECUARDS SYSTEM INSTRUMENTATION TRIP SETPOINTS FUNCTIONAL UNIT TRIP SETPOINT

4. LOSS OF POWER 480 Volt Emergency Bus (a) Loss of Voltage (First Level) 1.8 1 0.20 seconds after Emergency Bus No. 1, 2, 3 voltage drops to ZERO volts from >420 volts 3.0 0.33 seconds after

'Ioltage decreases to 276 volts (b) Degraded Voltage (Second Level)

1. 480 V Bus 4-1, Bus 5-2, Bus 6-3 429 4.5 Volts Time Delay 10 il Seconds

2. 480 V Emergency Bus No. 1, Emergency 421 14 5 Volts Bus No. 2, Emergency Bus No. 3 Time Delay 10 il Seconds i

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l YANKEE R0WE 3/4 3-14A Amendment No.JP6 I

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TABLE 4.3-2 (CONTINUED)

Y ENGINEERED SAFEGUARDS SYSTEM INSTRUMENTATION 5- SURVEILLANCE REQUIREMENTS U

n CHANNEL MODES IN MIICII E CIIANNEL CHANNEL FUNCTIONAL SURVEILLANCE

" FUNCTIONAL UNIT CIIECK CALIBRATION TEST REQUIRED

2. CONTAINMENT ISOLATION (Continued)

c. Actuation Channel B S NA M(4) 1, 2, 3, 4, 5*

(1) liigh Containment S R(3) M(3) 1, 2, 3, 4, 5*

Pressure Sensor (2) Safety Injection (All Safety Injection Surveillance Requirements)

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1. 3. MAIN STEAM ISOLATION Y

(n a. Low Steam Line Pressure S R(3) M(3) 1, 2

b. Automatic Trip Logic NA NA Q 1, 2

c. Manual Initiation NA NA R 1, 2

d. liigh Containment NA NA R 1, 2 Pressure E 4. LOSS OF POWER 9 430 VOLT EMERGENCY BUS

a. Loss of Voltage (First Level) NA R R 1, 2, 3 f b. Degraded Voltage (Second Level) NA R M 1,2,3 s

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