ML19345F546
| ML19345F546 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 02/13/1981 |
| From: | Maine Yankee |
| To: | |
| Shared Package | |
| ML19345F544 | List: |
| References | |
| NUDOCS 8102180323 | |
| Download: ML19345F546 (1) | |
Text
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~O 3.19 SAFETY INICTION SYSTEM Aoplicability:
Applies to the condition of safety injection system.
Objective'.
To define the condition of the safety injection system required during reactor operation.
Specification: a) None of the following valves may be closed unless the reactor is subcritical.
1.
Any safety injection tank isolation valve (SIA-M-ll, 21, 31) 2.
Any safety injection header isolation valve (HSI-16, 26, 36) 3.
Any loop isolatica valve RC-M-ll, 12, 21, 22, 31, 32) b)
The reactor shall not be critical unless the following conditions are met:
1.
The safety injection tank isolation valves shall be disabled in the open position.
This shall require the following:
a.
The breakers shall be locked and tagged open, b.
The disconnect switches for each valve power operator shall be locked and tagged open.
2.
The loop isolation valves shall be disabled in the open position.
This shall require the following:
a.
The breakers shall be locked and tagged open.
b.
The disconnect switches for each valve power l
operator shall be locked and tagged open.
Basis:
The position restrictions en the loop isolation vaves, safety injection header isolation valves, and the safety injection tank isolation valves are necessary to assure that plant operation is restricted to conditions considered in the loss of coolant accident analysis.
I 81021g o f i