Wiring A Sub Panel - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 01-07-2012, 10:59 PM   #1
Join Date: Sep 2011
Posts: 41
Rewards Points: 25

Wiring a sub panel

I am under the impression that at ANY time after the main panel in a home you must separate your grounds and neutrals. Is this correct? The reason I ask is because I watched a youtube video recently about a guy remodeling a house and running a sub panel to the second story of the home. He said to connect the ground to the neutral lug. I always thought if the panel did not contain a ground bar with it you must buy it separately so you could basically be using a 4 wire feeder cable. The guy in the video stated he was not going to use the bonding screw so it kind of has confused me as to what is correct. Furthermore, what is the exact way to apply this concept in a main panel setting after the meter? Basically I am asking when to use 3 or 4 wire cable and how would you go about grounding in both situation with the ground rod. Thanks for any help!


ZBat910 is offline   Reply With Quote
Old 01-07-2012, 11:02 PM   #2
Join Date: Oct 2009
Posts: 1,046
Rewards Points: 1,014

It was you-tube


Anti-wingnut is offline   Reply With Quote
Old 01-07-2012, 11:09 PM   #3
Join Date: Sep 2011
Posts: 41
Rewards Points: 25

Yes, I am fully aware of the lack of knowledge on youtube but the guy was saying some factual statements and he seemed sure of what he was doing and was prepared to have it inspected so I wanted to double check my own thoughts on the matter.
ZBat910 is offline   Reply With Quote
Old 01-07-2012, 11:11 PM   #4
jproffer's Avatar
Join Date: Mar 2005
Location: Chester, IL
Posts: 1,406
Rewards Points: 716

He only SEEMED sure of what he was doing.....actually maybe HE was sure, but he was also wrong.
jproffer is offline   Reply With Quote
Old 01-08-2012, 08:51 AM   #5
SD515's Avatar
Join Date: Aug 2008
Location: Near Jackson Michigan Area
Posts: 1,452
Rewards Points: 504

You can do a search on this forum for sub-panels and get a wealth of information. It’s probably one of the most previously discussed topics.

To shed some light on your question, the main service disconnect is the ONLY place a connection between neutral and ground is made, barring a few exceptions allowed for existing installations. New installations of sub-panels require 4 wires, and the neutrals and grounds are kept separate. A ground wire in a 4-wire feeder is an equipment grounding conductor, not a grounding electrode conductor.

Ground rods for sub-panels are only required if the sub-panel is installed in a detached building. A sub-panel installed in the same building as the main disconnect doesn’t require additional grounding electrodes.

Just because you can, doesn't always mean you should
SD515 is offline   Reply With Quote
The Following 2 Users Say Thank You to SD515 For This Useful Post:
jbfan (01-08-2012), Jim Port (01-08-2012)
Old 01-08-2012, 12:35 PM   #6
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 7,971
Rewards Points: 1,548

Did someone add a comment to the Youtube video stating that connecting the ground to the neutral was wrong?
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.
AllanJ is offline   Reply With Quote
Old 01-08-2012, 02:00 PM   #7
Semi-Pro Electro-Geek
Join Date: Jul 2009
Location: Arizona, USA
Posts: 3,045
Rewards Points: 2,990

So exactly how did he connect it? He ran a 4-wire feeder, terminating ground and neutral both on the same isolated terminal bar, and without the bonding screw installed? That's definitely not right. That makes the chassis of the panel ungrounded.


mpoulton is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring from panel Rick N. Electrical 6 07-10-2013 04:25 PM
wiring sub panel right next to main panel bill423 Electrical 4 05-14-2011 08:17 PM
Wiring a sub panel to another sub panel Uncle Wayne Electrical 25 02-08-2011 09:50 AM
Sub panel wiring question mntnvew Electrical 13 03-02-2009 11:28 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1