ML20150E824

Proposed Tech Specs 3/4.7.6 Increasing Allowed Flow Variations of Control Room Emergency Ventilation Sys

ML20150E824
Person / Time
Site:	Callaway
Issue date:	03/25/1988
From:	UNION ELECTRIC CO.
To:
Shared Package
ML20150E822	List: ML20150E818 ML20150E824
References
NUDOCS 8804040121
Download: ML20150E824 (3)

Text

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i Attachment 3 to ULNRC-17 4 7 l

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l PROPOSED TECHNICAL SPECIFICATION CHANGE 9 Specification 3/4.7.6 l

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l 8804040121 800325 PDR ADOCK 05000403 p PDR i

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! PLANT SYSTEMS 2 SURVE!LLANCE REQUIREMENTS (Continued) t l I

c. At least once per 18 months, or (1) after any structural maintenance .

J on the HEPA filter or charcoal adsorber housings, or (2) following i

painting, fire or cheatcal release in any ventilation zone communicating with the system by:

1) Verifying that the Control Room Emergency Ventilation System satisfies the in place penetration and bypass leakage testing acceptance criteria of less than 1% and uses the test procedure guidance in Regulatory Positions C.5.a. C.5.c and C.S.d of g

[^ Reculatory Guide 1.52, Revision 2, March 1978, and the system flow rate is ."00 cf: 3404 for the Filtration System and L2. coo ek l$1 Sm delYj 5 .

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2000cbn 4 for the Pressurization System with - -.- . .

going through the Pressurization System filter adsorber unit; .

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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 "h

Position C.6.a of Regulatory Guide 1.52 Revision 2. March zceo den- +4cob -I 1978, for a methyl iodide penetration of less than 1%; and (2 \ eco c 4 3 *d

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Sco d'n . co Verifying a syhtem flow rate of 2000 ;f: g 1^" for the Filtration System and 200 ef. 1." for the PressurTzation System with.

going through the Pressurization System filter

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adsorber unit during system operation when tested in accordance with ANSI H510-1975.

d. 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 1,aboratory analysis of a represen-tative 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, for a methyl iodide penetration l of less than 1%; . I

e. At least once per 18 months by: l

1) Verifying that the pr' essure drop arross th4 combined HEPA filters and charcoal adsorber banks is less than 5.4 inches su ch + Gm 1

'l zoco d.n~* HN Water Gauge while operating the system at a flow rate of. - 5*

.... ,, .. for the Fil tration System and ... .. _ .., a

) v the Pressurization System filter cdsorber unit;

2) Verifying that on a Centrol Room Ventilation Isolation or High 4

Gaseous Radioactivity test signal, the system automatically -

i switches into a recirculation mode of operation with flow l through the HEPA filters and charcoal adsorber banks; i .

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3) Verifying that the system maintains the control com at a  ;

j positive pressure of greater than or equal to inch Water Gauge relative to the outside atmosphere during system i

operation; and 1

4) Verifying that the Pressurization System filter adsorber unit heaters dissipate 15 1 2 kW in the Pressurization System when tested in accordance with ANSI N510-1975.

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CALLAWAY - UNIT 1 3/4 7-15 1

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PLANT SY51 EMS

$11RVL!LLANCE REQ'J1REMENTS (Continued) '\

f. After each complete or partial replacement of a HEPA filter bank, by

.- - verifying that the cleanup system satisfies the in place penetration

/ and bypass leakage testing criteria of less than 1% in accordance 2cco dm '_h with ANSI Nb10-1975 fog a 00P test aerosol while operating the system

_s ny mw um a ee om 3 at a flow rate of 0000 cf; ' 1 5 for the Filtration System and w., for the Pressurization System filter adsorber unit; and

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g. Af ter each complete or partial replacement of a charcoal adsorber bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing criteria of less than 1%

( g' rv in accordance with ANSI NE10-1975 for a halogenated hydrocarbon j 2 cce dm +6m refrigerant test gas while operating the system at a flow rate of

- "O for the Filtration System and 500 -f; : 1 5 for the Pressurization System filter adsorber unit, jw (k5 eo d rn +_ 5,c o f

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CALLAWAY - UNIT 1 3/4 7-16

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