Pump house wiring

edensnakeJune 21, 2012

I'm wiring a new pump house which has four (H-H-N-G) 8 gauge wires from a main panel double pole breaker (actually the main panel is a subpanel since it comes off a meter pole main disconnect). Besides the 240 for the pump I want a 120 outlet in the well house. A friend advised me to install a double 30Amp fuse box (with pull out disconnect) to feed the pump_ since fuses will blow before a breaker will trip in the event of a lightning strike. I assume I can run a 12 gauge hot wire wire from this fuse box block) to a small subpanel (including the neutral and ground of course) which will have a `20 amp GFCI breaker to feed the outlet. Any problem with this?

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Ron Natalie

Neither fuses nor breakers are really going to do anything in the event of a lightning strike. You'll need a disconnect for everything at the pump house which can be the fused disconnect for the pump and some other kind of disconnect (switch) for the receptacle. You might just put in a small sub panel.

You will need a grounding system (rods) for this structure.

    Bookmark   June 21, 2012 at 9:41PM
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hendricus

I assume I can run a 12 gauge hot wire wire from this fuse box block)

If that fuse block is 30 amp you have to use #10 wire to the sub panel. After the 20 amp GFCI breaker you run 12 gauge.

    Bookmark   June 22, 2012 at 3:44PM
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