any hypothetical question on subpanel

[dogdog]

So if you have a main panel, you run wires to another panel on a different area, it's called a sub panel. A sub panel does not have neutral and ground bonded.

But.
if you have a main panel, the breakers are full, you needed another panel next to it. It is really kind of consider a sub panel.. Do you bond the neutral and ground? or do you consider it as main panel?

No, I don't have any projects that needs to do this... just something off my head.

 

[Crazyjake8493]

If it's being fed from a breaker in your existing main panel, it becomes a sub-panel requiring a 4 wire feed and an isolated neutral.

 

[wyliesdiesels]

CANNOT have more than one bond per system.

There is only one exception which applies to pre2008 installs on detached structures with specific qualifiers.

 

[ForceFed70]

A subpanel is a subpanel. Doesn't matter if it's right next to the main panel or 200' away.

 

[sberry]

I have seen them accepted as a homogenous unit piped real short together, but its been a while and it was on older installs. But as the man said, only 1 bond as this could send neutrals over the pipe. You are to have an insulated wire from neutral bar to the second neutral bar, all connected like 2 neutrals come factory in some panels.

 

[Bert_]

CANNOT have more than one bond per system.

There is only one exception which applies to pre2008 installs on detached structures with specific qualifiers.

This is the issue. Whether or not you want to call it a sub panel really doesn't matter. Not bonding at sub panel is just the result of this rule.

 

[dogdog]

definitely learned something.... thanks folks...