channing123
Member
in a regular house panel homeline or qo etc. how many grounds under one individual grounding terminal.and where in nec can I find this in nec 
grounds in panels
- Thread starter channing123
- Start date
- Status
charlie
Senior Member
- Location
- Indianapolis
Re: grounds in panels
110.14(A) gives the manufacturers permission to list the terminal bars for more that one grounding conductor but the manufacturer has to have their panelboard labeled for the number of grounding conductors. You are not permitted more than one grounded conductor but most manufactures have their panelboard labeled for two or three grounding conductor.
Channing, what king of electrician are you?
110.14(A) gives the manufacturers permission to list the terminal bars for more that one grounding conductor but the manufacturer has to have their panelboard labeled for the number of grounding conductors. You are not permitted more than one grounded conductor but most manufactures have their panelboard labeled for two or three grounding conductor.
Channing, what king of electrician are you?
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: grounds in panels
Charlie, thanks for the reference!
You specifically mention grounding conductors, where 110.14 doesn't. Is there something mentioned regarding grounded conductors, can they be that way too? That's been a debate around my shop.
I'm guessing most panels aren't listed for the grounded to be doubled up?
Yeah Channing, where you from, what's your specialty?
Charlie, thanks for the reference!
You specifically mention grounding conductors, where 110.14 doesn't. Is there something mentioned regarding grounded conductors, can they be that way too? That's been a debate around my shop.
I'm guessing most panels aren't listed for the grounded to be doubled up?
Yeah Channing, where you from, what's your specialty?
charlie
Senior Member
- Location
- Indianapolis
Re: grounds in panels
408.21 Grounded Conductor Terminations. Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.
408.21 Grounded Conductor Terminations. Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.
electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
Re: grounds in panels
oooo interesting. usually I land the grounded and grounding conductor from the same NM cable under the same terminal. I think it speeds up installation and looks nice. Apparently i should cease that practice.
oooo interesting. usually I land the grounded and grounding conductor from the same NM cable under the same terminal. I think it speeds up installation and looks nice. Apparently i should cease that practice.
charlie
Senior Member
- Location
- Indianapolis
Re: grounds in panels
One of the great things about this forum is that a lot of practices that we thought were OK are dispelled and we all learn. Inspectors can catch only so much because of the time constraints most are under. There is also a limit to their knowledge just like there are limits to ours. With more knowledge, we all can be more Code compliant. It will save a life.
One of the great things about this forum is that a lot of practices that we thought were OK are dispelled and we all learn. Inspectors can catch only so much because of the time constraints most are under. There is also a limit to their knowledge just like there are limits to ours. With more knowledge, we all can be more Code compliant. It will save a life.
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: grounds in panels
Absolutely, Charlie.
For those of us scratching our heads looking at our 2005's, looking at the big empty hole where 408.21 used to reside, now it's NEC 2005 408.41.
At least I caught myself before I said, Nah-uhh!
[ December 10, 2004, 06:41 PM: Message edited by: georgestolz ]
Absolutely, Charlie.
For those of us scratching our heads looking at our 2005's, looking at the big empty hole where 408.21 used to reside, now it's NEC 2005 408.41.
At least I caught myself before I said, Nah-uhh!
[ December 10, 2004, 06:41 PM: Message edited by: georgestolz ]
- Location
- Illinois
- Occupation
- retired electrician
Re: grounds in panels
clayton,
Don
clayton,
The terminals are listed for only a single grounded conductor per terminal screw. They are listed for multiple grounding conductors. The rule was added in the 2002 code to make enforcement easier. The requirement for only a single grounded conductor per terminal has been a part of the UL standard that covers panels for many years.
Don
- Status