ML20086T644

Proposed Tech Spec 3.4.7.2, Control Room Ventilation Sys

ML20086T644
Person / Time
Site:	Clinton
Issue date:	12/27/1991
From:	ILLINOIS POWER CO.
To:
Shared Package
ML20086T642	List: JSP-772-91, Application for Amend to License NPF-62,changing Tech Spec 3/4.7.2, Control Room Ventilation Sys to Provide Means for Reducing Amount of Time Sys Required to Be Operated in High Radiation Mode ML20086T644
References
NUDOCS 9201070005
Download: ML20086T644 (4)

Text

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Attachment 2, to U-601916 LS-91-007

, Page o of 9 PLANT SYSTEMS 3/4. 7.2 CONTROL RDOM VENTILATION SYSTEM LIMITING CONDITION FOR OPERATION 3.7.2 Two independent Control Room Veatilation Systems shall be OPERABLE.1 APPLICABIllTY: All OPERATIONAL CONDITIONS'and *.

ACTION:

a. In OPERATIONAL CONDITION 1, 2 or 3 with one Control Room Ventilation System inoperable, restore the inoperable system to OPERABLE status within 7 days or be in at least HOT SHUTDOWN within'the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b. In OPERATIONAL CONDITION 4, 5, or *: d

1. With one Control Room Ventilation System inoperable, estore the inoperable system to OPERABLE status within 7 days.+e nitiate and maintain operation oLth QPERABLE,srst3mJ,the,b1 J t mo.31e_Ef,[uMs nf npergio(for -M Cse /k7xn.471ces, har haL eadiatio of irrdto.t ed cuerA c,w w.% c- W 4 - drain,nn Ae h

2. the Wt sacrdL o c<numen+f'Ottfon' Systems ~inops-o tYol^R6BiM/ent r e, Utp *n CORE Q j

, y ALTERATIONS.. handling of irradiated fuel in the secondary containmen and operations with a potential for draining the reactor vessel. Qh>j

c. The provisions of Specification 3.0.3 are not applicable in OPERATIONAL CONDITION *.,

SURVEILLANCE RE0VIREMENTS 4.7.2 Each Control Room Ventilation System shall be demonstrated OPERABLE:t

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 tempera-ture is less than or equal to 86 F.

b. At least once per 31 days on' a STAGGERED TEST BASIS by initiating, from .

the control room, flow through the HEPA filters and charcoal adsorbers and verifying that the makeup filter system operates continuously 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; and with flow through the recircula-tion charcoal adsorber for at least 15 minutes,

• When irradiated fuel is being handled in the secondary containment.

, TAutomatic transfer to the chlorine mode is not required when chlorine containers I

having a capacity of 150 pounds or less are stored 100 meters or more from the control room or its fresh air inlets.

CLINTON - UNIT 1 3/4 7-3

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'URVEllt.ANCE REOUIREMENTS (Continued) 4.7.2 (Continued)

c. At least once per 18 months or (1) af ter any structural maintenance on the makeup or recirculation HEPA filters or charcoal adsorbar housings, or (2) following painting, fire or chemical release in any ventilation zone communicating with the makeup or recirculaticn filter system by:

1. Verifying that the makeup filter s'ystem satisfies the in place penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses the test 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 3000 cfm i 10%.

2. Verifying that the recirculation filter system satisfies bypass leakage testing acceptance criteria of less than 2% total bypass and

. uses test procedure guidance in Regulatory Positions C.5.a and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978*, and the system flow rate is 64,000 cfm 10%.

3. . Verifying, within 31 days after removal, that a laboratory analysis of a representativo carbon sample obtained in accordance with Regula-tory 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 3

• Regulatory Guide 1.52, Revision 2, March 1978*, for a methyl iodide penetration of less tht.) 0.175% for makeup filter system carbon ad- 1+

so'rber and 6% for recirculation filter system carbon adsorber when

, tested; in accordance with ASTM D3803-79 methods, with the following parameters: _

Make Up Filter System a) Bed Ocpth -

4 inches b) Velocity -

40'fpm .

c)' Temperature -

30 C d)- Relative Humidity - 70%

Recirculation Filter System a) Bed Depth -

2 inches b) Velocity -

80 fpm c)' Temperature . -

30 C d) Relative Humidity -

70%

4. Verifying flow rate of 3000 cfm i 10% for the makeup fil~ter system and 64,000 cfm i 10% for the recirculation filter system during opera-.

tion when tnted in accordance with ANSI N510-1980.

• ANSI H510-1980 shall be used in place of ANSI N510-1975 as referenced in (

Regulatory Guide 1.52, Revision 2, March 1978.

CLINTON - UNIT 1 3/4 7-4

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<m m ~ v-.- -- + - - - s-I'"E" 8 I9 PLANT SYSTEMS CONTROL ROOM VERTILAi!ON SYSTEM SURVEILLANCE REOUIREMENTS (Continued) 4.7.2 (Continued)

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 af ter 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 test-ing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revi-sion 2, March 1978*, for a methyl iodide penetration of less than 0.175%

for the cateup filter system carbon adsorber and 6% for the recirculation filter system carbon adsorber when tested; in accordance with ASTM D3803-79 eethods, with the following parameters: ,

Make U:> Filter System a)' Bed Depth - 4 inches-

6) Velocity -

40 fpm c) Temperature -

30 C-d) Relative Humidity - 70% -

Recirculation Filter System a).BedDepth - 2 inches b) Velocity ~ -- 80 fpm c) Temperature -

30*C d) Relative Humidity 70%

e. At least once per 18 conths by: -

1. Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Vater Gauge while operating the makeup filter system at a flow rate of 3000 cfm t 10%.-

2. Verifying that on a high chlorine actuation ** and a manual initia-tion test signal, the system automatically ** switches to the chlorine -

mode of operation and the dampers c1,ose within 2 seconds.*** l

3. Verifying that the control room leak rate is limited to < 4000 cfm 10% at > 1/8-inch Water Gauge (W.G.) with respect to a3facent areas.

4. Verifying that on a smoke mode actuation test signal, the system automatically switches-to the smoke mode of- operation at a flow rate less than or equal to 64,000 cfm i10% .

L 5. Verifying that on a high radiation actuation test signal, the system automatically switches to the high radiation mode of operation and

' ANSI H510-1980 shall be used in place of ANSI.N510-1975 as referenced in Regulatory Guide 1.52/ Revision 2, March 1978.

• • Automatic triasfer to 'the chlorine mode.is not required when chlorine containers having a capacity of 150 pounds or less are stored 100 meters fror. the control room or its fresh air inlets.

• • • Thh specification is not appitcable after all chlorine containers having a capacity of 100 pounds or greater are removed from the site including the chlorine containers located at the site sewage treatment plant.

CLINTON - UNIT 1 3/4 7-5 Amendment No. 12

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Attachment 2 to U-601916 LS-91-007 Page 9 of 9 PLAT 1T SYSTEMS CONTROL ROOM VEf4TILAT10N SiSTEM SURVEILLANCE REQUIREMENTS (Continued)

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4.7.2 (Continued) . dh r'2gpec3 -/o Odpcenf CW(;b )

- w .- a the control rcom is maintainec' a 've ressure of at least 1/8-inch W.G. Q 4 K M i E 11'Je-atmos during system operation at a flow ratDess t'han or equal tcI'30 fm.

6. Verifying that the makeup filters heaters dissipate at least 14.4 LW when tested in accordance with ANSI H510-1980.

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

makeup filter system, by verifying that the HEPA filter bank satisfies the in place penetration and bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1980 while operating the system at a flow rate of 3000 cfm i 10%.

g. Af ter each complete or partial replacement of a charcoal adsorber bank in the makeup or recirculation filter systems, by verifying that the char-coal adsorber bank satisfies the in place penetration and bypass leakage testing acceptance criteria of less than 0.05% for the makeup filter system and 2% total bypass leakage for the recirculation filter system in accordance with ANSI H510-1980 for a halogenated hydrocarbon refrigerant test gas while operating the makeup system at a flow rate of 3000 cfm 1 10%

and the recircul? tion filter system at a flow rate of 64,000 1 10%.

h. At least once per 18 months by verifying that the air inleakage rate into the negative pressure portions of the Main Control Room Ventilation System ductwork located outside the Main Control Room habitability boundary between fan OVC04CA(8) and isolation dampers OVC03YA(B) inclusive, and fire dampers OVC042YA(E), 0VC042Y8(F), OVC042YC(G) and OVC042YO(H) to be

< 650 cfm when tested in accordance with an NRC-aporoved test method. In addition, visually verify the integrity of the Recirculation filter Housing flexible connection to fan OVC03CA(B).

CLINTON - UNIT 1 3/4 7-6

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