EMT Ground question

[ShinobiofLegends]

Question... I’m running THHN inside of EMT for my garage workshop with a dedicated green ground wire per circuit. Do I need to run grounding jumper wires in each of the boxes? I have not been able to find a particularly clear answer...

 

[alfredeneuman]

Yes
If you have a grounding wire you have to bond it at each box

 

[acer66]

Can circuits not share a ground?

 

[Jim greengo]

Can circuits not share a ground?

Yes,sized for largest circuit fed in pipe.

 

[wyliesdiesels]

You can forgo the ground wire and use the EMT instead as long as its complete all the way to panel.

 

[alfredeneuman]

You can forgo the ground wire and use the EMT instead as long as its complete all the way to panel.

It doesn't have to complete to the panel.
You might have NM to a metal box, bond the ground wire to it, and use EMT the rest of the way without a ground wire.

 

[ShinobiofLegends]

Yes
If you have a grounding wire you have to bond it at each box

Even though the EMT continuously run to the breaker? I’ll be transitioning to NM to run part of it inside the wall.

 

[ShinobiofLegends]

So I’ve currently pulled a green wire to each circuit (3 circuits, outlets alternating) and ran it all the way to a transition box and switches to NM to run in the wall. The EMT does NOT have a continuous path to ground, it’s all screwed to studs and drywall.

Pic of one of the 2 gang boxes for reference:

 

[Norcal]

So I’ve currently pulled a green wire to each circuit (3 circuits, outlets alternating) and ran it all the way to a transition box and switches to NM to run in the wall. The EMT does NOT have a continuous path to ground, it’s all screwed to studs and drywall.

Pic of one of the 2 gang boxes for reference:

You need to bond the grounding conductors to the box.

 

[ShinobiofLegends]

You need to bond the grounding conductors to the box.

Got it, thanks everyone

 

[alfredeneuman]

Why do you have 2 ground wires in 1 conduit?

 

[ShinobiofLegends]

Why do you have 2 ground wires in 1 conduit?

I had done one per circuit. overkill, I know.

 

[wyliesdiesels]

Its double overkill.

Couldve used the EMT and saved on the wire