ML19327A949
| ML19327A949 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 10/18/1989 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML19327A950 | List: |
| References | |
| NUDOCS 8910240028 | |
| Download: ML19327A949 (3) | |
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CORRKCTE) PAGES FACILITY Or ' KAT 4,UR
.IGER3L NO. OPR-77 PJGKt' NO. 50-327 i
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L' Revise the Appendix A Technical Specifications by removing the pages -
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identified below and inserting.the enclosed pages.' The revised pages are i
identified by the captioned amendment number and contain marginal lines l
indicating the area of change.
j REMOVE INSERT 3/4 6-15 3/4 6-15 l
3/4 9-13 3/4 9-13 5
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8910240028 Si1016ADC.C.K O$000327 FDR FDC P
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C0'NTAINMENT SYSTEJM F
CONTAINMENT VENTILATION SYSTEM i
' LIMITING CONDITION FOR OPERATION
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3.6.1.9 One pair (one purge supply line and one purge exhaust line) of l
containment purge system lines may be open; the containment purge supply and exhaust isolation valves in all.other containment purge lines shall be closed.
y Operation with purge supply or exhaust isolation valves open for either purging or venting shall be limited to less than or equal to 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> per 365 days.
The 365 day cumulative time period will begin every January 1.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With a purge supply or exhaust isolatinn valve open in excess of the a.
above cumulative limit or with more than one pair of containment purge system lines open,, close the isolation valve (s) in the purge L
line(s) within one hour or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
b.
With a containment purge supply and/or exhaust isolation valve having a measured leakage rate in excess of 0.05 L,, restore the inoperable valve to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, otherwise be in i
i at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS 4.6.1.9.1 The position of the containment purge supply and exhaust isolation valves shall be determined at least once per 31 days.
4.6.1.9.2 The cumulative time that the purge supply and exhaust isolation valves are open over a 365 day period shall be determined at least once per 7 days.
4.6.1.9.3 At least once per 3 months, each containment purge supply and exhaust isolation valve shall be demonstrated OPERABLE by verifying that the measured leakage rate is less than or equal to 0.05 L, and by verifying that when the measured leakage rate is added to the leakage rates determined pursuant to Specification 4.6.1.2.d for all other type B and C penetrations, the combined leakage rate is less than or equal to 0.60 L,.
SEQUOYAH - UNIT 1 3/4 6-15 Amendment No. 18, 120
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-Ry0ELINGOPERATIONS
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SURVEILLANCE REQUIRCMENTS (Continued)
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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 charcoal adsorber operation by verifying c.
within 31 days after removal that a laboratory analysis of representa-tive carbon sample obtained in accordance with Regulatory Position l
C.6.b of Regulatory Guide 1.52, Revision 2 March 1978 meets the l
Guide 1.57 Revision 2, March 1978. laboratory testing criteria of R d.
At least once per 18 months by:
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Verifying that the pressure drop across the combined HEFA filters and charcoal adsorber banks is less thf.a 3 inches Water i
Gauge while operating the filter train at a flow rate of 9000 cfm 1 10%.
2.
Verifying that the filter train starts on a high radiation signal from the fuel pool radiation monitoring system.
3.
Verifying that the heaters dissipate 3213.2 kw when tested in
.I accordance with ANSI N510-1975.
After eacn complete or partial replacaent of a HEPA filter bank by
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verif ing that the HEPA filter banks remove greater than or equal to i
99.95 of the 00P when they are tested in place in accordance with ANSI N510-1975 t 10%.
while operating the system at a flow rate of 9000 cfm f.
After each complete or partial replacement of a charcoal adsorber i
bank by verifying that the charcoal adsorbers remove greater than or equal to 99.95% of a halogenated hydrocarbon refrigerant test gas when they are-tested in place in accordance with ANSI N510-1975 while operating the system at a flow rate of 9000 cfm i 10%.
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SEQUOYAH - UNIT 1 2/4 9-13 Amendment No. G8, 122
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