B13630, Proposed Tech Specs Re Containment Spray Interlock
| ML20059J157 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/11/1990 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20059J155 | List: |
| References | |
| B13630, NUDOCS 9009190198 | |
| Download: ML20059J157 (2) | |
Text
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Docket No. 50-245 B13630 I
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i Attachment No. l Millstone Nuclear Power Station Unit No. 1 Emergency Technical Specification Change Request Containment Spray Interlock 7
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September 1990 9009190198 900911 POR ADOCK 05000245 P
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TABLE 3.2.2 (Continued)
INSTRUMENTATION THAT INITIATES AND CONTROLS THE EMERGENCY CORE COOLING SYSTEMS Minimum Number of Operable Inst.
Trip Function Trip Level Setting Remarks Channels Per Trip System (1) 1 Timer, Isolation
< 15 seconds 1-In conjunction with Conder tr high reactor pressure, initiates Isolation Condenser.
1 Timer Auto Blowdown
< 120 seconds 1-In conjunction with low low reactor water level and high drywell pressure and LP core cooling pump interlock.
2 Containment Spray 3 2/3 Core Height i.e.,
1-Prevent inadvertent Interlock
-175 inches operation of containment 9.0 $ P g 10.0 psig spray.
2 APR LP Core Cooling 90 < P < 110 Psig 1-Defer APR actuation Pump. Interlock pending confirmation of LP core coolinq system operation.
2 se+s of 2 Power Available on Normal for 120 Volt 1-Permissive for auto-(Total)
Emergency Buses undervoltage relays close of emergency (Monitor Buses 5 and 6) power source on buses.
2-Persmissive to start core spray and LPCI pumps.
Millstone Unit 1 3/4 2-5 L
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