ML20010A818
| ML20010A818 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/05/1981 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20010A817 | List: |
| References | |
| NUDOCS 8108120263 | |
| Download: ML20010A818 (3) | |
Text
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SURVEILLANCE REQUIREMENTS 4.6 CONTAINMENT SYSTEMS 4.6.1 PRIMARY CONTAINMENT CONTAINMENT INTEGRITY 4.6.1.1 Primary ^0NTAINMENT INTEGRITY shall be demonstrated:
a.
At least once per 31 days by verifying that:
1.
All accessible (per occupational exposure considerations) penetrations not required to be open per approved orocedures during RECOVERY MODE are closed by valves, blind fianges, or deactivated automatic valves secured in their pocitions.
2.
The equipment hatch is closed and sealed.
b.
By verifying that each containment air lock is OPERABLE per Specification 3.6.1.3.
~
CONTAINMENT AIR LOCKS 4.6.1.3 Each containment air lock shall be demonstrated OPERABLE:
- a.
- After each opening, except when the air lock is being usert for multiple entries, then at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, by verifying less than or equal to 0.01 L seal leakage when the volume between the door seals is stabilize to a pressure to 10 psig.
I b.
At least once per 6 months by conducting an overall air lock leakage l
test at P,L=. is within its limit., 56.2 psig, and by verifying that the overall air lock leakage r.
It1TERNAL PRESSURE 4.6.1.4 The primary containment internal pressure shall be determined to within the limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
l
- Exemption to Appendix "J" of 10 CFR 50.
l THREE MILE ISLAND - UNIT 2 4.6-1 l
0108120263 010aos PDR ADOCK 05000320 P
SURVEILLANCE REQUIREMENTS AIR TEMPERATURE 4.6.1.5 The primary containment average air temperature shall be the arithmetical average of the temperatures at the following locations and shall be determined at least once per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s:
Location RB nominal Elev. 350' (1 temperature indication)
J a.
b.
RB nominal Elev. 330' (1 temperature indication)
RB nominal Elev. 305' (1 temperature indication) c.
l 4.6.4 COMBUSTIBLE GAS CONTROL l
HYDROGEN ANALYZERS 4.6.4.1 The gas partitioner shall be demonstrated OPERABLE at least once per 31 days by perfo. ming a CHANNEL CALIBRATION using sample gases containing:
a.
One volume percent hydrogen; balance air.
1 b.
Four volume percent hydrogen, balance air.
i dYDR0 GEN PURGE CLEANUP SYSTEM The hydrogen purge ci anup system shall be demonstrated OPERABLE:
4.6.4.3 v
At least once per 18 months or (1) after any structural maintenance I
a.
l on the HEPA filter or charcoal adsorber housings, or (C) foilowing l
painting, fire or chemical release in any ventilation zone communi-cating with the system by:
1.
Verifying that the cleanup system satisfies the in place testing acceptance critaria 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 1000 cfm i 10%.
2.
Verifying a system flow rate of 1000 cfm i 10% during system operation when tested -in accordance with ANSI N510-1975.
b.
At least once per 18 months by verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate of 1000 cfm 10%.
THREE f1ILE ISLAND - UNIT 2 4.6-2 Change No. 6
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