DC GFCI [RE-wrenches]

[Drake Chamberlin - Electrical Energy]

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Ground faults are a common reason for service calls in standard electrical 
wiring.  Almost always the problem is in a box.  The only times I've found 
it between boxes is when a cable is damaged.  This is pretty rare.

I don't think I've ever pulled a shorted wire out of a healthy conduit 
run.  (Once from rusted  & distorted EMT that was buried in the earth) .

Checking continuity between a disconnected wire and ground tells if the 
wire has a ground fault.  If the wire is bad, and the problem is not in an 
accessible location, replace it.

Drake


  At 09:54 AM 01/12/2002 -0800, you wrote:

>It appears that GFI's tripping may become one of the most common PV
>service calls and that finding the fault location is difficult (time
>consuming).  What we need is a meter or tool that can reliably display
>how many feet from the GFI the fault is located.  I am told that some
>homeowners either defeat bathroom circuit GFI's or replace them with
>standard breakers when service calls become a nuisance.  I wonder what
>percentage of PV homeowners in the future will eliminate GFI's as the
>least expensive remedy for making systems operational.  Does anyone know
>of a device available at this time that helps locate ground faults and
>arc faults?
>
>Graham Owen
>GO Solar
>
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