ML20085M482

Proposed Tech Spec Table 3.2.B Respecifying Alarm Setpoint of Core Spray Sparger to Reactor Pressure Vessel Delta/Pressure Instruments

ML20085M482
Person / Time
Site:	Browns Ferry
Issue date:	01/18/1974
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20085M471	List: ML20085M478 ML20085M482 ML20085M507
References
NUDOCS 8311080597
Download: ML20085M482 (2)

Text

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TABLE 3.2.8 (Ccntiturd)

Minitun N3. -

Operchie Per Trip Sys (1) Function Trip Level Setting Action Remarks 1

LPCI 3reak Detection Timer - 0 < t < 1 sec. A 1. Below trip setting allows logic to K40 A & 3 determine which recirculation loop

- select for injection.

I'. 3) ADS Timer 120 see 15 A- 1. Above trip setting in conjunction with low reactor water level, high dryvell pressureandLPCIorCSSpupsrunng initiates ADS.

2 Instrument channel - 100 110 psig A 1. Below trip setting defers ADS RHR Discharge Pressure actuation. -

2 Instrument Channel 185 110 psig A 1. Below trip setting defers ADS g CSS Pump Discharge Pressure actuation.

g 2 Instrument Channel - ~< 2 psid A 1. Above trip setting determines pump is 9 o

Recirculation Pump A running. "

Running g R

2. Part of LPCI Break Detection Logic 2 Instrument Channel - _< 2 paid A 1. Above trip setting determines pu p is Recirculation Pump B running.

Running g

2. Part of LPCI Break Detection Logic W 2 Instrument channel - .5_< p < 1.5 paid A 1. Above trip setting determines cump is Recirculation Jet Pump running,

, Riser d/p . .. w.

2. Part of LPCI Break Detection Logic 1(3) Core Spray Sparger to 2 psid + 0.4 paid A 1, Alarm'to detect core spray sparger Reactor Pressure Vessel d/p ( pipe break.

1 RHR (LPCI) Trip System bus N/A C .1. Monitors availability of power to e

power monitor logic systems.

e311080597 740131  ;

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TABk.E3.2.5(Continued) pirimum No. -

)

)per:blo Per

' rip Sy, (1) Function Trip Level Setting Action Remarks 1 Instrument channel - 100 pois ~+ 15

• A 1. Below trf p s' etting in conjunction with  !

Reactor Low Pressure containment isolation signal and both (PS-68-93 & 94 SW #1) suction valves open will close RilR (LPCI) adminulon valves.

2 Instrument Channel -

Reactor Low Pressure 900 psig +_ 15 'A 1. Below teip setting permissive for actuation of LPCI break detection $!

(PS-3-186 A & B)

. circuit.

2 Core Spray Auto Sequencing 6< t < 8 secs.

B 1. With diesel power j l Timers (5) 2. One per motor 4 2 LPCI Auto Sequencing 0 < t < 1 sec. B 1. With diesci power Timers (5)

2. One per motor O 1 RHRSW A1, Bl. Cl, and D1 A 1. With diesel power 13 < t_< 15 sec. j Timers l

2. One per pump  !

t a

2 Core Spray and LPCI Auto O < t < 1 sec. B 1. 'With normal power j Sequencing Timers (6) 6 < t < 8 sec.

12 < c < 16 sec. 2. One per motor g

18 < t < 24 sec.

{

'1 RHRSW A1, B1, Cl, and D1 27 < t < 29 sec. A 1. With normal power Timers

2. One per pump

'1 LPCI Break detection Timer - 0< t< 1 sec.

A 1. Below trip cetting permissive to K28 A & B allow logic to determine whether both recirculation pumps are on. ,

, 1 LPCI Break Detection Timer - 1 < t < 3 sec. A 1. Abwe trip setting permissive for

. K34 A & B . altowing water perturbations to settle.

.., I

• "' ' ~ ~ '

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