ML20101U332

Proposed Tech Specs Eliminating Cable Spreading Areas from Pressure Boundary & Discontinuing Ventilation of Lower Cable Spreading Rooms by Control Room HVAC Sys

ML20101U332
Person / Time
Site:	Byron
Issue date:	01/28/1985
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20101U326	List: ML20101U324 ML20101U332
References
NUDOCS 8502070254
Download: ML20101U332 (5)

Text

1 ATTACHMENT B REVISED TECHNICAL SPECIFICATIONS PAGE REQUIREMENT REVISION i

3/4 7-17 4.7.6.A Adjust the control room HVAC recircula-tion capacity from 51,000 cfm to 49,500 cfm because air is no longer supplied to lower cable spreading area.

NOTE:

The filter testing requirements proposed in our 1/17/85 letter must also be revised to show this reduced capacity.

3/4-7-18 4.7.6.e.3 Redefine the control room area to be pressurized to 1/8" w.g.

Delete the temporary restriction.

4.7.6.e.4 Add new pressuirzation requirement for upper cable spreading area.

4.7.6.e.5 Renumber existing requirement 4.7.6.e.4.

3/4 7-44 3/4.7.12 Revise Table 3.7-6 to specify correct temperature limit for lower cable spreading rooms without control room HVAC.

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PLANT SYg7 EMS SURVEILLANCE REQUIREMENTS (Continued) 1)

Verifying that the cleanuo system satisfies the in place pene-tration tasting acceptance critaria of less than 0.05% and uses the test procadure guidance in Regulatory Positions C.S.a, C.S.c, and C.5.d of Regulatory Guide 1.52, Revision 2, March

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1978, and the system flow rate is 6000 cfm m 10% for the Emer-gency Makeup Systas;

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Verifying, within 31 days after removal, that a laboratory analysis of a representative caroon sample frem the Emergency Makeup System octained in accordance with Requiatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing critaria of Requiatory Position C.6.a of Ragulatory Guide 1.52, Revision 2, March 1576, for a mennyi iodide penetration of less than 0.175% when tasted at a tempera-ture of 30*C and a relative humidity of 70%; and YtSiOO 3)

Verifying a system f1 rata of 6000 cfm : 10% for the Emergency Makeuo System and 51,000 cfm 210% for' the Recirculation

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System when tastad in accord:nce with ANSI N510-1980.

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After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> -of Emergency Makeuo System operation by verify-(

inq within 31 days after removal, that a laboratory analysis of a representative carcon sample cotained in-accordance with Regulatory

. Position C.6.b of. Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory tasting critaria of Requ!atory Position C.6.4 of Regulatory Guide 1.52, Revision-2. March 1978, for a methyl iodide penetration of less than 0.17EE when tastad at a tamperature of 20*C and a relative humidity of 70%;

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At least onca per 18 months by:

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Verifying that the pressure droo across the combined HE.oA filtars and charcoal adsorcer banks is less than 6.0 inch.=

Water Gauge while coerating the Emergency Makeup System I'

at a flow rate of 6000 cfm 10%;

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-w PLANT SYSTEMS StJRVEILLANCE REQUIREMENTS (C:ntinued) 2)

Verifying that on a Safety Injection or High Radiation-Control Rocm Outside Air Intake test signal, the system automatically 6

switches into a makeup mode of control room ventilation with flow through the Emergency Makeup System HE?A filters and

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Verifying that the Emergency Makeup System maintains the control Jl rocaat a positive nominal pressure of greater than or equal to

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, 1/8 inch Water Gauge relative to ancient pressure in areas adjacent to the control room area phen ocerating an Emergency

{ Makeup Systas at a flowrata of 6, 00 cfm :10%;

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Verifying that the haata m dissipate 27.2 t 2.7 kN when tested in accordance with ANSI N510-1S80.

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After each completa or partial replacement of a HEPA filtar bank, by verifying that the cleanuo system satisfies the in place penetration testing accontanca critaria of less than 0.05% in actoreance with ANSI N510-1580 for a 00P test aerosol while oceratinc the Emergency Nakeup System at a flow. rata of 5000 cfm : 10%; and g.

' After each completa or partial replacement of a charcoal acsorter bank in the Emergency Makeup System by verifying that the cleanuo systas satisfies the in place penetration and bypass leakage testing acceptance critaria of less than 0.05% in accordance with ANSI N510-1980 for a halogenated hydrocarbon refrigerant tast gas while operating the system at a flow rata of 6000 cfm m 10%.

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TABLE 3~.7-6~

AREA TEMPERATURE MONITORING TEMPERATURE

' AREA LIMIT (*F)

'1.

Misc. Electric Equipment and Battery Rooms 108 7

2.

ESF Switchgear Rooms-108 3.

Division 12 Cable Spreading Room-108 4.

Upper :.d '.r

- Cable Spreading Rooms 90

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5.

Diesel-Generator Rooms 132 6.

~ 01esel'011 Storage Rooms 132 7.

Aux. Bui.1 ding Vent Exhaust. Filter ~ Cubicle 122 8.

Centrifugal Charging Pump. Rooms 122.

9.

Containment-Spray Pume Rooms 130 10.

RHR Pump Rooms.

130 7

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11. Safety Injection Pump Room' 130

12. Control Room 90 e =~

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