ML19340E817
| ML19340E817 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 12/18/1980 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19340E753 | List: |
| References | |
| NUDOCS 8101150875 | |
| Download: ML19340E817 (1) | |
Text
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CONTAINMENT SYSTEMS 3/4.6.2 DEPRESSURi2ATION AND COOLING SYSTEMS CONTAINMENT SPRAY SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.1 Two -independent containment spray systems shall be OPERABLE with each spray system capable of taking suction from the RWT on a Containment Spray Actuation Signal and Safety Injection Actuation Signal and automatically transferring suction to the containment sump on a Recirculation Actuation Signal. Each spray system flow path from the containment sump shall be via an OPERABLE shutdown cooling heat exchanger.
APPLICABILITY: MODES 1, 2, and 3*.
ACTION:
With one containment spray system inoperable, restore the inoperable spray system to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY vithin 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 />.**
l SURVEILLANCE REOUIREMENTS 4.6.2.1 Each containment spray system shall be demonstrated OPERABLE:
a.
At least once per 31 days by:
1.
Verifying that upon a Recirculation Actuation Test Signal, the containment sump isolation valves open and that a recirculation mode flow path via an OPERABLE shutdown cooling heat exchanger is established.
Verifying)that each valve (manual, power operated orin the f 2.
automatic from the RWT on a Containment Pressure-High test signal.
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i "With pressurizer pressure > 1750 psia.
- During Cycle 5 operation, the No.1 loop containment spray sub-system is considered operable with total primary stress for DBE conditions less is the allowable hot stress as defined in ASME B&PV than 2.4S, where Sh Codt.SectkonIII,SubsectionNC.-
CALVERT CLIFFS - UNIT 1 3/4 6-10 Amendment No. 49 8101150 } 7 {
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