Term
Rad Waste
Describe the containment isolation valves and what happens on signal. |
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Definition
-The drywell equipment drain sum and drywell floor drain sump pump suction valves are containment isolation valves.
-Shut on group II.
-This will also trip the pumps. |
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Term
Rad Waste
Describe the pumps with essential power supplies. |
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Definition
-Rx building floor drain sump pumps: MCC-133/143.
-RHR room ECCS pumps: MCC-133/143. |
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Term
Rad Waste
Describe the drywell equipment drain sump recirc. |
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Definition
-If temp gets to 140F pump starts and recircs through a heat exchanger.
-HX cooled by RBCCW. |
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Term
Rad Waste
Describe the drywell floor drain sump and equipment drain sump level alarms. |
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Definition
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Term
Rad Waste
Describe where the condensate drip tank discharges to. |
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Definition
-Goes to the condenser if < or equal to 1umho conductivity and discharge pressure >10#.
-If not it goes to rad waste. |
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Term
Rad Waste
Describe the ECCS area sump pumps alarm and starts. |
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Definition
-Alarm at 4".
-2 pumps start at 6" and stops at 4".
-Other 2 pumps start at 8" and stops at 4". |
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