ML20094B374

Proposed Tech Spec SRs 4.7.6.c,d & E,Reflecting Proposed Design Change to Output Rating of Charcoal Filter Adsorber Unit Heater in Pressurization Sys Portion of CR Emergency Ventilation Sys

ML20094B374
Person / Time
Site:	Wolf Creek
Issue date:	10/24/1995
From:	WOLF CREEK NUCLEAR OPERATING CORP.
To:
Shared Package
ML20094B371	List: ML20094B366 ML20094B374
References
NUDOCS 9511010003
Download: ML20094B374 (3)

Text

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Attcchment IV. to ET .95-0094 ' '

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ATTACHMENT IV PROPOSED TECHNICAL SPECIFICATION CHANGE 4

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. . Attschment IV to ET 95-0094.

Page 2 of 3

. PLANT SYST. EMS SURVEILLANCE REQUIREMENTS (Continued) i

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

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1) Verifying that the Control Room Emergency Ventilation System satisfies the in-place penetration and bypass leakage testing acceptance criteria; of less than 1% for HEPA filters and 0.05%

for charcoal adsorbers and uses the tect procedure guidance in Regulatory Positions C.S.a. C.S.c, and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978, and the system flow rate is 4 2000 cim i10% for the Filtration System and 2200 cfm 10% for the Pressurization System with 750 cfm i10% going through the Pressurization System filter adsorber unit;

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 R z 9 t^^/ P 95 C.S.: Of Rz9?c / GuW 1.52, Revi9n 2, '.ierch 1978, f r e meth'/' MW pnetrM^^ Of ' :: then 4% rend ASTM D 38031989 when tested at 30*C and 70% relative humidity,

! fer 9 methyl lodido penetration of less than 2%, and i 3) Verifying system flow rate of 2000 cfm 10% at greater than or equal to 6.6 inches W.G. (dirty filter) for the Filtration

-1 System and 2200 cfm 110% at greater than or equal to 3.6 inches W.G. (dirty filter) for the Pressurization System with 750 cfm +10% going through the Pressurization System filter adsorber unit during system operation when tested in accordance 1

with ANSI N510-1980.

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 laboratory analysis of a represen-l 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 Pg9t^^/ Pe e t C.S.: OfRze!ea/

Gr51.52, R:v!9n 2, '.12:$ 1978, f : methy! MW pnetret!:n of4ess4han4%i ASTM D 38031989 when tested at 30*C and 70% relative humidity, for a methyl lofde penetration of less than 2%;

e. At least once per 18 months by:

1) Verifying that the pressure drop across the (ombined HEPA filters and charcoal adsorber banks is less than 6.6 inches Water Gauge while operating the syster.1 et a flow rate of 2000 cfm 110% for the Filtration System and less than 3.6 inches Water Gauge while operating the system at a flow rate of 750 cfmi10%

for the Pressurization System filter adsorber unit,

2) Verifying that on a Control Room Ventilation Isolation or High

' Gaseous Radioactivity test signal, the system automatically switches into a recirculation mode of operation with flow through the HEPA filters and charcoal adsorber banks, WOLF CREEK - UNIT 1 3/4715 Amendment No. 22 4

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I Attrchment IV to ET 95-0094 Page 3 of 3 I I

.' PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

3) Verifying that the system maintains the control room at a positive pressure of greater than or equal to 1/4 inch Water Gauge relative to the outside atmosphere during system operation, and

4) Verifying that the Pressurization System filter adsorber unit i heaters dissipate 46-t-2 5 i 1 kW in the Pressurization System when I tested in accordance with ANSI N510-1975. ,

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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 with ANSI N510-1975 (however Prerequisite Testing, Sections 8 and 9 shall be in accordance with ANSI N510-1980) for a DOP test aerosol while operating the system at a flow rate of 2000 cfm 110% for the Filtra-tion System and 750 cfm 10% for the Pressurization System filter adsorber unit; and

g. After 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 ofless than 0.05% in accordance with ANSI N510-1975 (however Prerequisite Testing, Sections 8 and G shall be in accordance with ANSI N510-1980) for a halogenated hydrocarbon refrigerant test gas while operating the system at a flow rate of 2000 cfm 110% for the Filtration System and 750 cfm 110% for the Pressurization System filter adsorber unit.

WOLF CREEK - UNIT 1 3/4 7 10 Amendment No. 23,66 4