FIRE PUMP MAIN SWITCH BOARD
FIRE PUMP MAIN SWITCH BOARD
(OP)
I have to connect a 150hp fire pump from the utillity transformer.(150ft).
The MSB,(and feeder) should be dimensioned at LRA(LOCKED ROTOR AMPERAGE)or at 1.25 FLA?
I Now that i need only a disconnect and a overcurrent device in this circuit.(NEC)
Can i use only a unfussed disconnect in Fire Pump room, and a CB at the MSB(for the overcurrent(shortcircuit) purposses)?
The MSB,(and feeder) should be dimensioned at LRA(LOCKED ROTOR AMPERAGE)or at 1.25 FLA?
I Now that i need only a disconnect and a overcurrent device in this circuit.(NEC)
Can i use only a unfussed disconnect in Fire Pump room, and a CB at the MSB(for the overcurrent(shortcircuit) purposses)?






RE: FIRE PUMP MAIN SWITCH BOARD
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