ML20141G173

Proposed Tech Specs,Changing Surveillance Requirement 4.6.6.3.d.5 to Reflect Heat Dissipation Requirement of 48 Plus/Minus 5 Kw for Standby Gas Treatment Sys Heaters

ML20141G173
Person / Time
Site:	Grand Gulf
Issue date:	02/17/1986
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20141G088	List: AECM-86-0052, Application for Amend to License NPF-29,changing Tech Specs to Lower Requirement for Standby Gas Treatment Sys Heaters in Surveillance 4.6.6.3.d.5 to 50 Plus/Minus 5 Kw L-86-002, Forwards Application for Amend to License NPF-29,changing Tech Specs to Lower Requirement for Standby Gas Treatment Sys Heaters in Surveillance 4.6.6.3.d.5 Per NUREG-0588.Fee Paid ML20141G084 ML20141G173
References
TAC-60700, NUDOCS 8602260176
Download: ML20141G173 (1)

Text

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CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) ,

b. At least once per 18 months ~or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire or chemical release in any ventilation zone communicating with the subsystem by:

1. Verifying that the subsystem satisfies the in place testing acceptance criteria and uses the test procedures of. Regulatory Positions C.5.a, C.5.c and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978, and the system flow rate is 4000 cfm i 10L

2. Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978.

3. Verifying a subsysten flow rate of 4000 cfm i 10% during system~

operation when tested in accordance with ANSI N510-1975.

c. After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by verifying within 31 days after removal that a laboratory analysis of a repre-sentative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, P,evision 2, March 1978.

d. At least once per 18 months by:

1. Performing a system functional test which includes simulated automatic actuation of the system throughout its emergency operating sequence for the:

a) LOCA, and b) Fuel handling accident.

2. Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 9.2 inches Water Gauge while operating the filter train at a flow rate of 4000 cfm i 10L

3. Verifying that the filter train and isolation dampers receive the

appropriate actuation signal by each of the following test

+ conditions. For at least one of these test conditions, verify 45 that the filter train starts and isolation dampers open on 5' receipt of the actuation signal.

C 4

a. Drywell pressure - high,

b. Reactor vessel water level - low low, level 2,

$ c. Fuel handling area ventilation exhaust radiation - high high, gg d. Fuel handling area pool sweep exhaust radiation - high high, a and Q e. Manual initiation from the Control Room.

o$ 4. Verifying that the fan can be manuall started.

m o.a.

5. Verifying that the heaters dissipate i 5.0 kW when tested l .

in accordance with ANSI N510-1975 (except for the phase balance criteria stated in Section 14.2.3).

GRAND GULF-UNIT 1 3/4 6-56 Awbe# O- l

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