Term
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Definition
| Remove heat from reactor auxiliary equipment |
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Term
| Loads on RBCCW (what does the system cool?) |
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Definition
RWCU NRHX Recirc pump motor and seal water coolers DW air coolers Fuel pool cooling HX CRD pump thrust bearing and gear box oil coolers RHR pump seals (not required for operability) Rx Bldg & Turb Bldg sample coolers PAS system coolers DW equip drain sump HX.
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Term
| Power supplies to RBCCW pumps |
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Definition
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Term
| Pump low pressure setpoint |
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Definition
| 30 psig discharge pressure |
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Term
| Standby pump start sequence |
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Definition
| Standby pump will start when discharge pressure on running pump reaches 30 psig. |
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Term
| Indication that non-running pump is in standby |
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Definition
| White indicating light on C-06 |
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Term
| Purpose of RBCCW surge tank |
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Definition
NPSH for pumps Surge volume for expansion and contraction of system water
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Term
| Surge tank high level alarm |
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Definition
| 6 feet 4 inches (76 inches) |
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Term
| Surge tank low level alarm |
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Definition
| 2 feet 6 inches (30 inches) |
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Term
| RBCCW min flow requirement and basis |
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Definition
| 1100 gpm to prevent overheating of system water |
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Term
| RBCCW min system temperature and basis |
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Definition
| 70 degrees F to meet minimum primary containment relative humidity requirement |
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Term
| Immediate action upon loss of RBCCW cooling |
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Definition
| Secure both Recirc pumps within 60 seconds |
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Term
| Other potential problems with a loss of RBCCW cooling |
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Definition
High drywell temperature, High drywell pressure, High RWCU temperature (alarm at 125 degrees F and isolation at 140 degrees F).
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Term
| Chemical added for corrosion control |
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Definition
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Term
| Chemical added for pH control |
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Definition
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