DC GFCI [RE-wrenches]

Joel Davidson joeldavidson at earthlink.net
Sun Jan 13 20:48:36 PST 2002


Chris is right (as usual). The few ground faults we have had has been
nicked wires. Pre-wire and test your series-string panels at the shop.
Pull array wires through conduit like your profit depends on it. Megger
every job and keep written records so you can find the nick when you are
called back. Run ground conductors so anyone can trace them back to the
grounding electrode without a wiring diagram. Neatness counts.

Christopher Freitas - OutBack Power wrote:
> 
> I have yet to hear of a PV-GFP tripping in the field due to a problem
> with the modules.  All of the calls I have handled have been related to
> the PV-GFPs tripping upon start-up of a newly installed system and have
> been the result of installer error or a damaged wire in a conduit.
> 
> I don't expect PV-GFPs to be a large problem down the road.  Has anyone
> had one trip due to bad modules?
> 
> Christopher Freitas
> OutBack Power Systems, Inc.
> cfreitas at outbackpower.com  www.outbackpower.com
> Tel 360 435 6030  Arlington WA USA
> 
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