SUMPS AND WASTE COLLECTION SYSTEM Flashcards
(13 cards)
What triggers the operation of WDL-P-2A/B pumps in the Fuel Handling Building sump?
They are automatically operated by level switches.
What is the maximum allowable level for the Aux Building sump, and why?
Do not exceed 3’ or 40% (6,000 gallons remaining) to ensure sufficient operator action time to isolate a leak in systems recirculating post-LOCA RB sump inventory.
Where must the Aux Building sump be aligned before placing the RB sump on recirculation?
It must be aligned to the MWST per EOP-10.
What happens when the WDL-CE-201 combustible vapor monitor alarms?
It alarms on the H&V panel and closes WDL-V-529, 531, and 538.
What must be done with the SBO Diesel Sump before release?
It must be recirculated and sampled prior to release, with its normal discharge to IWTS.
What action should be taken if an oil leak occurs in the Turbine Building sump?
Open SD-P-9A/B breakers to prevent automatic discharge to IWTS.
What is the normal discharge destination for the Turbine Deluge pump (SD-P-5)?
It discharges to the river, with its breaker normally open to meet NPDES limits.
What does LS-284A/B/C detect, and what action does it trigger?
It detects Turbine Building flood conditions (2/3) and automatically opens the roll-up door, triggering the trip of all CW pumps.
What prevents freezing in the Aux Boiler Sump discharge lines?
Solenoid-operated vacuum breaker valves drain the lines when the pump stops.
What is the purpose of SD-P-3A/B and SD-P-4A/B in the Intermediate Building sump?
They protect EFPs, with check valves closing if the Turbine Building floods to prevent backflow into the Intermediate Building.
Why are EDG building drains normally locked closed?
To prevent oil spills from entering the yard and flood water from damaging the EDGs.
What triggers a leak alarm for MU, DH, and BS pump compartments?
A leak rate of 4.53 gpm.
Where does the yard drainage system transfer water, and when is FO-V-74 opened?
It transfers water to the east dike, and FO-V-74 is maintained closed except during draining.
