ML20092A056
| ML20092A056 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/30/1992 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20092A051 | List: |
| References | |
| B14005, NUDOCS 9202060499 | |
| Download: ML20092A056 (2) | |
Text
- _ - - _ _ - _ _ _ _ _ _.
4 Docket No. 50-336 EliOM h
Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Shutdown Cooling Systi.a Autoclosure Interlock 4
9
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January 1992 JgRo2060499 920130 p
ADOCK 05000336 PDR l
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EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 10.~
Verifying that_the following valves are in the indicated position with power to the valve operator removed:
l Valve Number.
Valve Function Valve Position 2-SI-306 Shutdown Cooling Open Flow Control 2-SI-659 SRAS Rec.irc.
Open*
1 2-SI-660-3 RAS Recirc.
Open*
2-CH-434 Thermal Bypass Closed **
}
b.
By a visual inspection which verifies that no loose debris-(rags, trash, clothing, etc.)'is~present in the containment which could be-transported to the containment sump and cause restriction-of-the pump suctions _during LOCA conditions. This visual inspection shall-be performed:
- 1.
For-all accessible areas of the containment prior to establishing CONTAINMENT INTEGRITY, and 2.
0f the areas affected within containment at-the completion of.
containment entry when CONTAINMENT INTEGRITY is established.
c.
At least'once pe* 18 months by:
1.
Verifying automatic interlock action of the shutdown cooling-system from the reactor coolant system by er.suring that with a simulated reactor _ coolant system pressure signal greater than or-equal to 300 psia the interlock prevents the shutdown cooling systcm suction valvestfrom being opened.
1
-2.-
A visual.--inspectior, of the containment sump and-verifying that the subsystem suction inlets;are not restricted by debris and S
that the sump components (trash racks, screens,-etc.) show no evidenceL of structural-distress or corrosion.-
__o 3.
-Verifying that-a: minimum total of.110 cubic feet of trisodium phosphate dodecahyditte (TSP) is contained within the TSP storage baskets.
p 4.
Verifying that when a representative sample of 0.35 i 0.65:lbs of TSP from a TSP storage basket is submerged, without~
agitation, in 50 5 gallons of 180 i 10*F borated water from
.the RWST, the pH of the' mixed solution is raised to'1 6 within'
~4 hours.
- To be closed prior to recirculation following LOCA.
- 2-CH 434, a manual valve, shall be locked closed a
MILLSTONE - UNIT 2 3/4 5-5 AmendmentNo;7,#,M,/d/
0049.
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