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  • Users: TimRo
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  1. TimRo

    Bonding the rebar in any equipment foundation/slab

    Bonding the rebar in any equipment foundation/slab (GSU transformers, HRSG, CTG, etc)to the grounding grid is very clear identified and addressed in IEEE 665 and 142. NEC 2008 is clear in connecting the rebar to the grounding grid. art 250. NESC-2007 is addressing this question in section 9...
  2. TimRo

    FIRE PUMP MAIN SWITCH BOARD

    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...

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