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21 Cards in this Set
- Front
- Back
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What is PAB Ventilation credited for post accident?
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PAB ventilation is credited for heat removal only, augmented quality for releases to the vent stack.
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What is the power supply to W-23, SSB Supply Fan? - What interlocks are associated with W-23? - What protective devices are provided for W-23? |
W-23 powered from PP-35, controlled from 1C04R. - Starting W-23 SSB Supply Fan, starts W-22 (B21) exhaust fan. - W-23 has a freeze stat if pre-heater temp drops to <35F. |
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What is the power supply to W-29 SSB A/C Fan? - What interlocks are associated with W-29? - What protective devices are provided for W-29? |
W-29 is powered from B-21, controlled from 1C04R. - To start W-29, must have W-27 Exhaust Fan running. Starting W-29 auto starts W-26 and W-24 Exhaust Fans - Trips on freeze stat if preheater temp <35F. |
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What is the power supply to W-27A/B, HP Exhaust Fans? - What interlocks are associated with W-27? |
W-27A/B HP Exhaust Fans powered from B-21. - W-21 PAB Exhaust Stack Fan must be running to start W-27A/B. |
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What is the power supply to W-35 PAB Supply Fan? - What interlocks are associated with W-35? - What protective devices are provided for W-35? |
W-35 PAB Supply Fan is powered from 1B-31, controlled from 1C04R. Maintains temperature via thermostat near the PAB Zurn. -W-32 PAB Exhaust Fan and W-30A/B PAB Filter Fans must be running to start W-35. - W-35 has a freeze stat if pre-heater temp drops to <35F, and will trip if heating steam condensate return temp drops to <200F. |
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What is the power supply to W-30A/B PAB Filter Fans? - What interlocks are associated with W-30A/B? - What protective devices are provided for W-30A/B? |
W-30A and B are powered form 1B-42 and 2B-32, controlled from 1C04R. - Interlocked with W-21A/B PAB Exhaust Stack Fans, respective W-21 must be running to start W30. - Normal flow is through a F-29 with a roughing and a HEAPA filter. Hi Rad on RE-214 will auto swap the filters F-23, with a roughing, HEPA, and a charcoal filter. |
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What is the power supply to W-32 PAB Exhaust Fan? - What interlocks are associated with W-32? |
W-32 PAB Exhaust Fan is powered from B-33 - W-32 is interlocked with W-21A/B Exhaust Stack Fans, W-32 will not start unless a W-21 fan is running. Interlocked with W-35, W-32 must be running to start W-35. |
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What is the power supply for W-21A/B PAB Exhaust Stack Fans? - What fans will be lost if the operating W-21 fan trips? |
W-21A/B PAB Exhaust Stack Fans are powered from 1B-42 and 2B-32, controlled from 1C04R. - If W-21A/B trips, the following will trip: - W-30A/B PAB Exhaust Filter Fans - W-35 PAB Supply Fan - W-27A/B HP Exhaust Fans - W-32 PAB Exhaust Fan - W-23 SSB Supply Fan - W-29 SSB A/C Fan |
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What is the power supply to W-67, RHR area cooling unit? - How is W-67 started? |
W-67 - B-43 - Local Off-Auto-On switch. - W-67 starts based on low duct pressure in the supply ducting for the area. |
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What is the power supply for W-68, SI and Spray Pump Area Cooler? - What auto starts this unit? |
W-68 Spray and Si Cooler is powered from B-43, local Off-Auto-On control switch. - Runs based on SI and Spray Pump room temperature. |
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What will cause a Aux Building Stack or Filter Flow Low alarm on C01?
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Low flow on a running W-30A/B will cause the Aux Building Stack or Filter Flow Low alarm on C01.
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What is the power supply to W-47 Drumming Area Supply Fan? - What interlocks are associated with W-47? - What protective devices are provided for W-47? |
W-47 Drumming Area Supply Fan - B-33 - W-47 shares a control switch and is interlocked with W-36A/B, all start at the same time, W-36A/B trip will trip W-47. - Freeze stat will trip W-47 if preheater temp is <35F, and will trip if heating steam condensate return temp is <200F. |
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What interlock is associated with W-33A/B SFP Surface Fans?
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W-33A/B will not start unless drumming area ventilation is ruinning (W-47 & W-36A/B).
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What is the power supply to W-88 LDGS Bldg Vent Fan? - What is the flow path for BDE Bldg Ventilation? - What protective functions are provided for W-88? |
W-88 BDE Ventilation Fan is powered from B-45. - Draws a suction from the PAB, and returns to the PAB. - Trips on freeze stat if preheater temp is <35F |
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What is the power supply for LDGS Building ventilation? - How are the LDGS Building Ventilation Fans Started? |
LDGS Ventilation is powered from and controlled on B-46. - Start the LDGS Bldg exhaust Fan, and the Supply fan will start. |
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What alarms are associated with LDGS Building Ventilation? - What actions are required for these alarms? |
LDGS Ventilation has a low flow alarm and a High D/P alarm on the LDGS Pane. RE-224 monitors LDGS Building Ventilation and will alarm on PPCS / SS. - If a high alarm is received on RE-224 LDGS Building Ventilation Monitor, the ARB directs shifting the building exhaust to the Unit 2 Purge Exhaust Filters. |
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What is the power supply to W-85.86 PAB Battery and Inverter Room fans? - What is the normal flow path for PAB Battery and Inverter Room Ventilation, and what is the cooling medium? |
W-85 powered form 2B-32 W-86 powered from 2B-42 - Suction is from Unit 2 TH and the rooms exhaust to U-2TH. Cooling units are cooled by SW. |
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How are the PAB Battery and Inverter Room Fans normally operated? - What temperature are we trying to maintain in the PAB Battery and Inverter Rooms? |
Normally W-85 or W-86 are operated with one in slow, the other in Auto. In high lake temperature conditions, both fans may be run in slow. - Maintaining the Battery Pilot Cell temperatures between 69F and 85F. |
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What will happen to W-85 and 86 PAB Battery and Inverter Room Fans on a low flow condition? - On an SI? |
The fan selected to Auto will start in the speed selected if a low flow condition exists. - W-85 and 86 will shift to slow speed if there is a Safety Injection and the Normal 4160V feeder to their respective bus is open for diesel loading concerns, reset locally. |
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What time dependent operator action is associated with PAB Ventilation?
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PAB ventilation must be restored within 30 minutes of establishing containment sump Recirc.
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What are the inputs to the White / Yellow Bus Ventilation Trouble?
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- Standby Fan Running - Low Air Flow - High Room Temperature |
