ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Voltag Drop
by gfretwell - 08/18/22 08:16 PM
Back From Retirement
by Bill Addiss - 08/16/22 09:19 AM
Upside Down ThreeWay
by gfretwell - 08/12/22 12:30 AM
Load Calcs for EVs and RVs
by gfretwell - 08/12/22 12:24 AM
Wiring method choice
by HotLine1 - 08/10/22 03:39 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 37 guests, and 14 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#46467 12/22/04 07:42 PM
Joined: Aug 2004
Posts: 69
N
nov Offline OP
Member
I need to install a couple of Iso. gnd. outlets. I was going to use 12/3 and attach the bare conductor to the box, the white to neutral, black to hot, and tape the red green and go to the outlet ground and tape the other end green at the panel for the ground bar. Is the correct? Also wanted to know what is the advantage to using the Iso. gnd. outlets.
thanks

#46468 12/22/04 09:20 PM
Joined: Sep 2004
Posts: 15
R
Member
What the heck are you talking about, tape the red green etc. Where are you trying to install the isolated ground, residential, commerical or industrial. What is the voltage and what type of panelboard/load center to you have. If this is residential and the ground and grounded conductor are bonded you can not do what you want without seperating the ground and grounded conductor. Heavy electronics used to require isolated grounds but todays thinking has changed depending on heavy motor loads and harmonics.

#46469 12/22/04 09:32 PM
Joined: Dec 2003
Posts: 886
H
Member
What is the advantage of an isolated ground receptacle? In most cases none.

You can re-identify the red as the iso ground however you need to consider a few points and what that isolated ground conductor is going to do for you.

First, both receptacles should be individual home runs or at least the isolated grounds need to be run individually back to the panel from each receptacle.

Second, in your case, instead of going to all that trouble just use plastic boxes, a regular receptacle and 12/2 NM home runs from each receptacle back to the panel. You now have your isolated ground without all the agravation.

-Hal

[This message has been edited by hbiss (edited 12-22-2004).]

#46470 12/22/04 11:17 PM
Joined: Dec 2001
Posts: 444
S
Member
Plastic boxes in commercial work? eeesh. It's available in Canada and it's code for us too now, we must use a proper 12-3 BX wire with the black, white, and green coloured conductor along with a bare ground. Taped red's are no longer acceptable!

#46471 12/23/04 02:19 AM
Joined: Sep 2003
Posts: 119
C
Member
Can you instand them without an isolated ground? I like the orange color outlets


Theres always enough room in the junction box.You just need a bigger hammer

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Potseal
Potseal
Saskatchewan
Posts: 264
Joined: February 2013
Top Posters(30 Days)
BigB 6
Popular Topics(Views)
295,186 Are you busy
226,767 Re: Forum
211,914 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5