ML20199E911

Proposed Changes to Tech Specs 3.5.1 & 4.5.1,revising Automatic Depressurization sys-related Air Sys Per Prior Commitments to Add Extrapolated Pressure Decay Test & Instrument Quality Test

ML20199E911
Person / Time
Site:	Grand Gulf
Issue date:	06/13/1986
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20199E908	List: AECM-86-0188, Application for Amend to License NPF-29,revising Tech Spec 4.5.1 to Change Automatic Depressurization sys-related Air Sys,Per Prior Commitments to Add Extrapolated Pressure Decay Test & Instrument Air Quality Test.Fee Paid ML20199E911
References
TAC-61782, NUDOCS 8606240146
Download: ML20199E911 (3)

Text

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EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 2)

Low pressure setpoint of the:

(a)

LPCI A and B subsystem loop to be 1 38 psig.

(b) LPCI C subsystem loop and LPCS system to be 1 22 psig.

(c) HPCS system to be 1 18 psig.

b)

Header delta P instrumentation and verifying the setpoint of the HPCS system and LPCS system and LPCI subsystems to be 1.2 0.1 psid change from the normal indicated AP.

3.

Verifying that the suction for the HPCS system is automatically transferred from the condensate storage tank to the suppression pool on a condensate storage tank low water level signal and on a suppression pool high water level signal.

d.

For the ADS at least once per 18 months by:

1.

Performing a system functional test which includes simulated automatic actuation of the system throughout its emergency I

operating sequence, but excluding actual valve actuation.

2.

Manually opening each ADS valve when the reactor steam dome pressure is greater than or equal to 100 psig* and observing that either:

a)

The control valve or bypass valve position responds accordingly, or b)

There is a corresponding change in the measured steam flow.

(InseAT) xThe provisions of Specification 4.0.4 are not applicable provided the surveillance is performed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure is adequate to perform the test.

GRAND GULF-UNIT 1 3/4 5-5 A mendrwedt No. -

8606240146 860613 PDR ADOCK 05000416 P

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INSERT TO 4.5.1.d page 3/4 5-5 3.

Performing an extrapolated pressure decay test on the ADS air system to demonstrate system pressure will be maintained for 7 days at a value 2: 110 psig without makeup air available.

4.

Verifying within 31 days after obtaining the representative sample that a laboratory analysis of the instrument air supply to ADS shall be determined to contain:

1.

particle size less than or equal to 50 microns 2.

total hydrocarbon less than 1 ppm 0

3.

moisture content less than or equal to -40 F dew point at 100 psig.

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