ML19317G889
| ML19317G889 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 08/05/1975 |
| From: | SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML19317G887 | List: |
| References | |
| NUDOCS 8004020548 | |
| Download: ML19317G889 (1) | |
Text
n e-RANCHO SECO UNIT I
't TECHNICAL SPECIFICATIONS kF"Y O
Limiting Conditions for Operation 4.
Two core flood tank pressure instrument channels shall be operable (one per tank minimum).
~
5 The electrically operated vent valves from the core flood tanks shall be closed.The breakers shall be open and so tagged.
C.
Reactor Building spray system and Reactor Building emergency cooling system.
The following combination of system components must be operable:
1.
Two Reactor Building spraypumps and.their associated spray headers with a minimum of 32 percent Na0H solution in the spray additive tanks and, 2.
A minimum level of 78 inches of solution shall be available in each spray additive tank.
3.
Four emergency cooling units, two with charcoal fiiter units.
D.
Nucicar service cooling and raw water cooling system.
1.
Two nuclear service cooling water (NSCW) pumps and raw water cooling pumps are operable.
2.
The manual valves in the NSCW suction and discharge of each operable Reactor Building emergency cooling unit and at the suction of each NSCW pump are locked open.
3 The manual valves in the suction and discharge lines of all operable heat exchangers served by the nuclear service raw water system are locked in their throttled or open position.
E.
Safety features valves and interlocks associated with each of the above systems are operable, inoperable valves shall be placed in the safety features position.
332 Maintenance shall be allowed during power operation on any component (s) in the high pressure, low pressure, nuclear service cooling and raw water cooling, Reactor Building spray, or Reactor Building emergency cooling systems, the core flooding system pressure instrument channels or BWST level channels, which will not degrade safety features system A or B below the level of performar.cc with the single subsystem removed from service.
In the context of this specification, a safety features system consists of the following subsystems:
high pressure i nj ec t ion, low pressure injection, Reactor Building emergency air cooling, Reactor Bui ding spray, diesel generator, nuclear service cooling water and nuclear service raw water, if the system being repaired is not restored to meet the requirements of specification 3.3.1 within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the reactor _ shall be placed in a hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If the requirements of specification 3.3.1 are not met within an additional 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the reactor shall be placed in'a cold shutdown condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
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