ML20101C602
| ML20101C602 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 12/14/1984 |
| From: | SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | |
| Shared Package | |
| ML20101C581 | List: |
| References | |
| NUDOCS 8412210137 | |
| Download: ML20101C602 (3) | |
Text
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L-REFUELING OPERATIONS f
f 3/4.9.11 SPENT FUEL P0OL VENTILATION SYSTEM I
LIMITING CONDITION FOR OPERATION I
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3.9.11 Two independent spent fuel pool ventilation sub-systems shall be OPERA 8LE with at least one sub-system in operation.
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-APPLICA8ILITY: Whenever irradiated fuel is in the spent fuel pooland Jan operakon wi4k leads over ihe. pool.
crane ACTION:
With one spent fuel pool ventilation sub-system inoperable, fuel a.
movement within the spent fuel pool or crane operation with loads l
over the spent fuel pool may proceed provided the OPERA 8LE spent fuel pool ventilation sub-system is capable of being powered from an OPERABLE emergency power source and is in operation and d_ischarging l
through at least one train of HEPA filters and charcoal adsorbers.
With no spent fuel pool ventilation sub-system OPERA 8LE, suspend all b.
operations involving movement of fuel within the spent fuel pool or l'
crane operation with loads.over the spent fuel pool.
l The provisions of Specification 3.0.4 are not applicable.
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c.
SURVEILLANCE REQUIREMENTS l
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'4.9.11 The above required spent fuel pool ventilation sub-systems shall be demonstrated OPERA 8LE:
At least once per 31 days on a STAGGERED TEST BASIS by initiating, a.
from the control room, flow through the HEPA filters and charcoal adsorbers and verifying that each sub-system operates for at least 15 minutes.
b.
At least 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:
B412210137 841214 PDR ADOCK 05000395 P
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i SUMER - UNIT 1 3/4 9-12 g
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REFUELING OPERATIONS
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SURVEILLANCE REQUIREMENTS (Continued) 1.
Verifying that the cleanup system satisfies the in place testing acceptance criteria and uses the test procedures of Regulatory Positions C.5.a. C.S.c and C.S d of Regulatory Guide 1.52, Revision 2, March 1978, and the system flow rate is l
30,000 cfm 1 10%.
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 Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978.
3.
Verifying a system flow rate of 30,000 cfm + 10% during system operation when tested in accordance with ANTI N510-1975.
c.
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d.
Atliiast' oncie~'pe'rl8 months b'y:
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1.
Verifying that the pressure drop across the combined HEPA and roughing filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate 3
of 30,000 cfm i 10%.
1 2.
Verifying that on a loss of offsite power test signal, the system automatically starts.
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I 3.
Verifying that the system maintains the spent fuel pool area at a negative pressure greater than or equal to 1/8 inches Water Gauge relative to the outside atmosphere during system operation.
After each complete or partial replacement of a HEPA filter bank by e.
verifying that the HEPA filter banks remove greater than or equal to 99.95% of the DOP when they are tested in place in accordance with i
l ANSI M510-1975 while operating the system at a flow rate of 30,000 cfm 1 10%.
f.
After each complete or partial replacement of a charcoal adsorber bank by verifying that the charcoal adsorbers remove greater than or 3
equal to 99.95% of a halogenated hydrocarbon refrigerant test gas
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when they are tested in place in accordance with ANSI N510-1975 while operating the system at a flow rate of 30,000 cfm 1 10%.
SU M ER - UNIT 1 3/4 9-13
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INSERT A Prior to the movement of fuel or crane operation with loads over the pool by verifying 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 Position C.6.a. of Regulatory Guide 1.52, Revision 2, March 1978.
Subsequent to each initial analysis (which must be completed prior to fuel movement or crane operation with loads over the pool), during the period of time in which there is to be fuel or crane movement with loads over the pool, verify charcoal adsorber operation every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> by obtaining and analyzing a sample as described above.
These subsequent analyses are to be completed within thirty-one (31) days of sample removal.
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