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#12841 08/18/02 03:46 PM
Joined: Aug 2001
Posts: 7,520
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pauluk Offline OP
Member
This is something I haven't thought to ask before. Obviously the neutral is fed through a GFI breaker, but do American GFIs normally have double-pole contacts which open the neutral, or just single-pole?

#12842 08/18/02 04:12 PM
Joined: May 2002
Posts: 202
J
Member
found this interesting site that shows a gfci taken apart and talks about it.
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/gfi2.html

#12843 08/18/02 04:51 PM
Joined: Apr 2002
Posts: 914
E
Member
Great link with the cool pic of a GFCI. I didn't realise how intricate the circuitry was/is in one. This makes me wonder about the safety of using a cheap off brand GFI. Does anydody know if you "get what you pay for?"

#12844 08/19/02 04:12 AM
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pauluk Offline OP
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Ah, thanks. That pic answers the question -- D.P. contacts.

#12845 08/19/02 05:58 AM
Joined: Oct 2000
Posts: 5,392
S
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GFI performance standards are going to change, see this article

#12846 08/19/02 04:01 PM
Joined: Oct 2000
Posts: 2,749
Member
What about all of the existing GFCI's? Will they have to be replaced?

[Linked Image]

[This message has been edited by Joe Tedesco (edited 08-19-2002).]


Joe Tedesco, NEC Consultant

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