ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,885 Are you busy
169,683 Re: Forum
162,919 Need opinion
Who's Online Now
1 registered members (George Little), 56 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#6178 - 12/25/01 02:25 PM 12/3 kitchen  
Cindy  Offline
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
Will GFCI receptacles work in the 2 small appliance branch circuits if they share a 12/3 neutral?
C


Work Gear for Electricians and the Trades

#6179 - 12/26/01 12:58 AM Re: 12/3 kitchen  
amp-man  Offline
Member
Joined: Jun 2001
Posts: 141
Sacto, California US of A
Cindy,

They'll work if you pigtail them off the hot & neutral, but not if you try to protect downstream receptacle outlets off of the load side of one GFI. So for a multi-wire circuit, it's a chicken in every pot, er, no, I mean a GFI at every outlet.

Hope your Christmas was Merry.

Cliff


#6180 - 12/26/01 01:32 AM Re: 12/3 kitchen  
The Watt Doctor  Offline
Member
Joined: Dec 2001
Posts: 435
Mont Belvieu, TX
I'm not sure what amp-man means by his reply, but I think I understand his intent. I would like to add the following. If I can, draw a picture in your mind of what I would do, and hopefully that will help you. A GFCI "monitors" the difference between current flow on the hot and neutral, and when the difference becomes more than a few milliamps it will trip.
Given the above, I would take your 12/3 nm cable (black, red, white, bare), and land it in 2 gang box. Pigtail the neutral with (2) pigtails, and land one on each of the line sides of (2) GFCI receptacles. Then land the black on the line side of one GFCI, and the red on the line side of the other GFCI. Now, feed the other small appliance outlets from the load sides of those 2 GFCI's. This will give GF protection to every outlet on the load side of those receptacles. Hope it helps Cindy.
HMEL #688


The Watt Doctor
Altura Cogen
Channelview, TX

#6181 - 12/26/01 08:39 AM Re: 12/3 kitchen  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
And I think they both mean a 12/2 to the downstream recps. Use the 12/3 only as a homerun.


#6182 - 12/26/01 11:25 AM Re: 12/3 kitchen  
Cindy  Offline
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
I haven't done this before and don't recall others doing it either. Why not? Seems like sharing the neutral is a good idea.


#6183 - 12/26/01 12:01 PM Re: 12/3 kitchen  
motor-T  Offline
Member
Joined: Nov 2001
Posts: 280
Girard, Ohio, USA
Cindy
A 12/3 to gfci is possible as amp-man pointed out, but I would be more inclined to use a 20 amp 2 pole gfci breaker, that way you would have the two required 20 amp small appliance circuits and they are gfcci protected, and you can run your 12-3.


#6184 - 12/26/01 02:37 PM Re: 12/3 kitchen  
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
To reiterate: 12-3 on the homeruns, downstream of GFCI's must be 12-2 or the GFCI's will perpetually nuisance trip...

The wirenut on the shared neutrals must be very well installed or the ol' "240V series" may wipe out some appliances.


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

#6185 - 12/26/01 07:55 PM Re: 12/3 kitchen  
The Watt Doctor  Offline
Member
Joined: Dec 2001
Posts: 435
Mont Belvieu, TX
Cindy,
Electure managed to say in one sentence what didn't say in several sentences. If I had it to say over again, I would say exactly what he said. Have a nice day.
HMEL #688


The Watt Doctor
Altura Cogen
Channelview, TX


Member Spotlight
Posts: 362
Joined: April 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.014s Queries: 14 (0.003s) Memory: 0.7916 MB (Peak: 0.9506 MB) Zlib enabled. Server Time: 2017-04-28 19:46:01 UTC