Thickness of EMT - Electric question

Hi all!

I'm running a dedicated 20a run with 12 2 MC(alum jacket, green insulated ground wire). In one area, I don't want to sink it into a wall in a closet which is lathe plaster. From what I gather, best practice is to run the MC into a JBox, then run the individual insulated conductors through an EMT for protection. I've run this with 3/4" EMT, which I realize is much larger diameter than the MC. Is that an issue? Maybe I should have looked for 3/8" EMT? I have an electrician coming to give an okay and connect the circuit, but I want to take care of as much as possible before he arrives. Thanks for any professional input.

Your issue will likely be unsecured MC dandling in open space. MC staples to studs or other approved fastners. Needs to have fasteners within 6" of box also. Make sure box is bonded to ground.

Note the EMT should also have fasteners such as risers of strut channel and caddy clips.

Thank you sir. I have taken your advise, got my EMT secured, but I am not sure what I can do about the dangling though.

On the bottom, it is below the "floor" of the closet. It is a raised floor above the box basically. (Not pictured)

At the top, what can I do though? Just looking for other ideas to avoid the dangling issue.

Much thanks.

The trade size emt u should have used would have been 1/2" which is the smallest trade size emt. Also u should take the previous advice and make sure that box and emt are properly bonded to the ground wire all the way back to the main ground bar. This prevents the box and emt from shocking you if a hot wire touches the metal. As far as the dangling it looks like what u need to do is secure the mc as u ran it to prevent it from dangling. Once a wire is to short then ur left with jerry-rigging means of fastening. But looks pretty good, how did u junction from mc to emt?

EMTs can be fat or thin- depends on how much greasy food they eat on the job...

Tripped circuits said:

how did u junction from mc to emt?

Click to expand...

I bonded the boxes and new pics show the straps securing the EMT. The EMT goes right into jbox, and so does MC. I should have left more slack to staple it around. I'm just going to see what the electrician says, and go with it. Re running some MC is no sweat. Thanks all for looking on.

I've spoken with 3 professional electricians (and referred to NEC code book) since posting this, and I've made some modifications to the run.

So as mentioned, I realize the trade size is larger than necessary. It was simply what was available, and they sell the pre bent corners which made it really doable for a non-tradesman.

I am going for A+ on safety so if you see a problem let me know. The boxes are closed up and the open knockouts were covered. I think my strapping and dangling issues are cleared up.

This was a good learning experience for me with code regarding exposed wiring. Would have been cheaper to demo the closet and sink the wire. FML... LOL. This looks cooler though.