ML20065J704

Proposed Tech Specs Reducing Inplace Penetration & Bypass Leakage Limit Requirement to Less than 0.05%

ML20065J704
Person / Time
Site:	Mcguire, McGuire
Issue date:	10/24/1990
From:	DUKE POWER CO.
To:
Shared Package
ML20065J702	List: ML20065J700 ML20065J704
References
NUDOCS 9011140142
Download: ML20065J704 (4)

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. . 1 PLANT SYSTEMS- f. 1^

l 3/4.7.6 CONTROL AREA VENTILATION SYSTEM. .k___ er ew toA A LIMITING CONDITION FOR OPERATION t

1 3.7.6 Two independent Control Area Ventilation Systems shall be OPERABLE.

l APPLICABILITY: ALL MODES ACTION:. (Units 1 and 2)

MODES 1, 2, 3 and 4:

~ With one Control Area Ventilation. System inoperable, restore the inoperable, system to OPERABLE status within 7 days'or be in.at least-HOT STANDBY:within. l ~g the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the'fo11owing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />..

MODES 5 and 6:

a. With one Control Area Ventilation System inoperable, restore t'he inoperable system to OPERABLE status within 7-days or-initiate.and l  !

maintain operation of the remaining OPERABLE Control Area-Ventilation System in the recirculation mode; and' '

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b. .With both Control Area Ventilation Systems. inoperable, or with ths OPERABLE Control Area Ventilation System,stequired to be-in_the: "

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recirculation mode by ACTION a. , not capable of being. powered by an OPERABLE emergency power source, suspend all operations 11nvolving-CORE ALTERATIONS or positive reactivity changes,

c. The provisions. of Specification. 3.0.4 are not; applicable. '

SURVEILLANCE REQUIREMENTS 4.7.6. Each Controit Area' Ventilation System shall be; demonstrated OPERABLE: -

a. At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, by verifying that' the control room .

air temperature is less than'or equal to.90*F;: I:  !

b. At least once per 31 days on a STAGGERED TEST BASIS .by initiating, 3 from the control room, flow through the HEPA filters and charcoal j adsorbers and verifying the the- system operates for at least '

10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> with the heaters operating; g McGUIRE - UNITS 1 and 2 3/4.7-13

, Amendment No.108 '(Unit 1)

Amendment No. 90 (Unit 2) _

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-. .- , j PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) ,

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c. - At' leMt 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 system,:by: - ggf 70 s '

1)- Verifying that the system satisfies the in place' penetration [

and bypass leakage testing acceptance criteria of less:thanC '

and uses the< test procedure guidance of= Regulatory Positions C.5.a. C.S.ci and C.5.d of Regulatory Guide 1.52, Revision 2,; j, March 1978, and the-system flow rate is 2000 cfm

• 10%;. .

L 2) Verifying, .within; 31 ' days af ter removal, 'that a laborat'o ry-L analysis of a-representative carbon sample obtained-in accordance with- Regulat ory Position C.6.b of Regulatory Guide 1.52, Revision 2, Marcl.1978, meets the laboratory testing i criteria of Regulatory Position C.6.a of' Regulatory Guide 1.52, i Revision 2,' March 1973,sfor a. methyl ~ iodide penetration of:less than 0.175%; and I

3) Verifying e .s tem flow rate of 2000 cfe t 10% during system-operation wheti tested in accordance with ANSI'N510-1975. ,

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d. After every 720_ hours of charcoal' adsorber operation, by verifying - '

within 31 days 'after removal, that a IQoratory analysis of; a.

representative carbon sample obtained in accordance with Regulatory.

Position C.6.b of Regulatory Guide 1._52,. Revision '2, March 197d, a meets the laboratory testing criteria'of; Regulatory Position C.6.a '

of Regulatory Guide 1.52, Revision 2, March 1978, for.a methyl '

iodide penetration of.less'than 0.175%;

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e. At least once per 18 months, by:

1) Verifying that the pressure drop across. tho' combined pre-filters, HEPA filters _and charcoal.adsorber banks is less than 5. inches Water Gauge while' operating the1 system at a flow rate-of 2000~cfm i 10%;

2) Verifying that upon> actuation of a diesel generator sequencer; the system automatically switches into a mode of operation with-flow through the HEPA filters and charcoal'adsorber banks;- '

3) Verifying that the system maintains = the control room at'a. '

positive pressure of greater than or equal,to'1/8 inch W.G.

relative to the outside atmosphere during. system operation; and.

4) Verifying that the heaters dissipate.10 t 1.0_kW when tested!in' s accordance-with ANSI N510-1975.

l i

~McGUIRE - UNITS 1 and 2 3/4 7 Amendment No.JO nit'1)-

Amendment No. .J0'(Unit 2) a

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$LANTSYSTEMS SURVEILLANCE' REQUIREMENTS,(Continued)

. d.0 5 0

f. After each complete or partial' replacement of a HEPA' filter ank, by vertfying that-the HEPA filter bank sattsfies the in place netration "

and bypass leakage testing acceptance criteria of:less than n- , '

accordance with. ANSI N510-1975- for a 00P test' aerosol, while operating the system at'a flow rate of 2000 cfm + 10%;-;and-

g. After each complete or. partial replacement'of a' charcoal adsorber'-

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I bank, by verifying that the charcoal adsorber satisfies the;in placei penetration.and bypass-leakage testing' acceptance criteria of'less tha c #n-W'in accordance with ANSI N510-1975 forya halogenated hydro--

on refrigerant test gas while operating the system.at a flow ate of 2000 cfm + 10%. -

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