CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet

Posted by Tony Smith
on 2012-11-07 18:39:46 UTC
> Because GFCI is intended primarily to protect against short-circuits
within hand-
> held devices. It was never intended, and is not recommended, for properly
> grounded appliances and equipment. If you feel more comfortable putting
> everything on GFCI sockets or breakers, go for it.
> It's just not necessary, and is prone to cause spurious faults just as Don
has
> described.


Newer versions (with AFCI) also trip if loose connections are arcing -
grounding won't stop a fire caused by that. In this case perhaps the
brushes aren't seating properly.

I've seen a few cases of this happening. One was an old powerboard where
the contacts on one socket were a bit loose, I threw that out. Another was
a microwave oven with a blown bulb. The bulb was actually fine, it just
wasn't making contact properly in the socket. A bit of head scratching
occurred while trying to figure out why the breaker kept tripping.

Tony

Discussion Thread

Don 2012-11-06 09:01:16 UTC Mill Motor trips GFI outlet Jon Elson 2012-11-06 16:51:59 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet FocusKnobs 2012-11-06 18:05:40 UTC RE: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Larry Hedeen 2012-11-06 21:32:19 UTC Re: Mill Motor trips GFI outlet elko_dude 2012-11-07 07:26:51 UTC Re: Mill Motor trips GFI outlet Stephen Muscato 2012-11-07 07:52:37 UTC Re: [CAD_CAM_EDM_DRO] Re: Mill Motor trips GFI outlet Scott A Tovey 2012-11-07 07:52:41 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Gary Click 2012-11-07 07:57:02 UTC Re: [CAD_CAM_EDM_DRO] Re: Mill Motor trips GFI outlet Roland Jollivet 2012-11-07 08:02:46 UTC [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet jeremy youngs 2012-11-07 08:31:12 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Roland Jollivet 2012-11-07 09:09:32 UTC [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet FocusKnobs 2012-11-07 10:17:51 UTC RE: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Gary Click 2012-11-07 10:24:48 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Roland Jollivet 2012-11-07 10:41:48 UTC [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet smik8153 2012-11-07 11:14:30 UTC Re: Mill Motor trips GFI outlet Jon Elson 2012-11-07 18:07:05 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Tony Smith 2012-11-07 18:39:46 UTC RE: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Nelson Collar 2012-11-07 20:05:18 UTC Re: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet Randy 2012-11-08 05:18:28 UTC RE: [CAD_CAM_EDM_DRO] Mill Motor trips GFI outlet