Lift pump wiring

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rugrat

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A lift pump (2HP SGVF barns) needs to be installed, but there is no nearby building to mount the control panel, so it will be mounted 150ft away. the datasheet calls for SOW cable (flexible cable), but it can't be directly buried or run on conduit, so how can I wire this pump?
 
rugrat said:
A lift pump (2HP SGVF barns) needs to be installed, but there is no nearby building to mount the control panel, so it will be mounted 150ft away. the datasheet calls for SOW cable (flexible cable), but it can't be directly buried or run on conduit, so how can I wire this pump?
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Move the Control panel is the best way. Make a support.
You will need a disconnect fairly close so use it and/or a jbox to transition to the SOW cable.
(Electrical Inspectors can only see 50'. Some less than that)
 
For a host of reasons the control panel needs to be as close as possible to the actual lift station sump.

Don't forget the explosion proof sealing fittings on the conduits. The conduits for the pumps and floats is basically just a sleeve to protect the cables and to facilitate replacement of same.

A cable tray terminating to meltric receptacles is another option. Adds cost but makes maintenance easy and may allow for less skilled labor to make repair/replacement.
 
ptonsparky said:
Move the Control panel is the best way. Make a support.
You will need a disconnect fairly close so use it and/or a jbox to transition to the SOW cable.
(Electrical Inspectors can only see 50'. Some less than that)
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what kind of support can I make? it's a 10x12-inch control panel. Sorry for the dumb questions.
 
A couple posts of your choice. Unistrut. You will need a disconnecting means and we don't know what your control panel includes.
Are you writing the specs or does this require a structural engineer as well? Sorry, but building a structure to hold that size panel should be pretty basic.
 
ptonsparky said:
A couple posts of your choice. Unistrut. You will need a disconnecting means and we don't know what your control panel includes.
Are you writing the specs or does this require a structural engineer as well? Sorry, but building a structure to hold that size panel should be pretty basic.
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I am designing the electrical system of a small city park, but this is my first ever design as I have been doing arc-flash studies for a couple of years and I just decided to give design a try. the control panel has the circuit breaker and terminal for power and floats. I thought the NEC had rules on mounting control panels but I didn't see much. Capture.PNG
 
rugrat said:
what kind of support can I make? it's a 10x12-inch control panel. Sorry for the dumb questions.
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The possibilities are pretty unlimited. On the quick and simple side of things you could drive a piece of unistrut into the ground or you could build a single room building that serves no other function to put it in and decorate the exterior in some manner that it is disguised within whatever else is around it.
 
ptonsparky said:
I'd be inclined to add an EGC to that feeder.
Equipment ahead of this would typically be a transfer switch suitable for use as service equipment but maybe not needed for a park.

Nothing in the NEC tells us how to support equipment.
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Inclined? The EGC is mandatory! Unless you're thinking the conduit will be used as the EGC.
 
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