E.M.T. good for ground

[peter d]

The truth is properly steel conduit has a lower impedance then any copper EGC you will install inside it.

But what if someone forgets to tighten a lock nut or setscrew?

And around and around we go!

 

[iwire]

But what if someone forgets to tighten a lock nut or setscrew?

Then they should fail inspection for not properly installing conduit. :grin:

I am also sure that regardless of the fact they do not properly run conduit that they will definitely properly connect conductors. :wink:

 

[peter d]

I am also sure that regardless of the fact they do not properly run conduit that they will definitely properly connect conductors. :wink:

Oh absolutely. Their splices will look nothing like this:

Photo credit of "Electure" on ECN

 

[jerm]

Oh absolutely. Their splices will look nothing like this:

get out the [4/11] extension rings!!! (I've never seen one of those btw. I'm sure someone makes it.)

 

[frizbeedog]

what in the name of sam hill.....

what in the name of sam hill.....

Nice pic. tell me that cover still fits.

 

[EBFD6]

This feels like deja vu!

I always tape my wire nuts on the ground conductors before I install my receptacles ground up!!!

 

[iwire]

get out the [4/11] extension rings!!! (I've never seen one of those btw. I'm sure someone makes it.)

I have some in my truck.

 

[frizbeedog]

oh yea

oh yea

the tape keeps the wire nut from popping off, or does it hold the electrons in?

 

[jerm]

get out the [4/11] extension rings!!! (I've never seen one of those btw. I'm sure someone makes it.)

quoting myself.

http://www.electrical-supply.net/product.asp_Q_parentID_E_414_A_subCatID_E_425_A_prodID_E_2348

anyone ever used one of these before? I think we just generally go up to a bigger box if a 411 won't cut it.

 

[peter d]

I'm sure all those EGC's in the bulging red wirenut are making a good connection. :roll:

Hopefully everyone can see the point being made here.

 

[iwire]

Yes I have used them for old work, not new.

If I am on a service call and open a box like the one in Pete's picture I will add a ring so I can close it up.

 

[dcspector]

Hopefully everyone can see the point being made here.

Clueless..........

 

[peter d]

Clueless..........

I don't know if you're joking or not so I'll play the fool. Those who install raceways improperly are going to splice improperly too. Running an redundant EGC isn't going to make a bit of difference to the overall quality of the installation of those who don't care.

 

[electricmanscott]

I tape the couplings to keep the screws that I don't tighten from falling out.

I also agree that the egc does make an excellent pull string to add new circuits.

 

[480sparky]

get out the [4/11] extension rings!!! (I've never seen one of those btw. I'm sure someone makes it.)

 

[dcspector]

I don't know if you're joking or not so I'll play the fool. Those who install raceways improperly are going to splice improperly too. Running an redundant EGC isn't going to make a bit of difference to the overall quality of the installation of those who don't care.

Peter I was not joking. I asked a question several posts back.....I don't know if it was answered or not.

 

[peter d]

Peter I was not joking. I asked a question several posts back.....I don't know if it was answered or not.

Ahhh...I went back and saw the question. You probably should start a new thread...this one is beyond salvage.

 

[wirebender]

If one runs #8 ungrounded conductors with a #12 EGC, OCPD 50 amp(75c Terminations) and all installed in 3/4" EMT set screw would they stiil have to meet 250.122 and install a #10

Yes, although the EMT by itself would be sufficient. If you install a wire EGC it be sized per T250.122.

or lets say the OCPD is 20 amp for the same above senario, would one then have to meet 250.122(B).

Yes

I guess my question is, if one installs an EGC in EMT, would that EGC still have to meet the referenced Articles, in both senarios? I seem to remember a thread on this awhile back.

Yes

 

[Jim W in Tampa]

The risk of no ground is allmost nill if we run emt and a grd wire.They reinforce each other at every box.Now whats at debate is the added cost and that is getting high.For me its simple i run it till my boss says to stop.Think about a pipe coming loose at first 10 feet from panel and no ground wire and wood building.Now let a motor or whatever short to case.Everything else that has a case just became live.

Had to blow some wind on the fire if this is gonna make the 5,000 mark.

 

[iwire]

Think about a pipe coming loose at first 10 feet from panel and no ground wire and wood building.Now let a motor or whatever short to case.Everything else that has a case just became live..

And that is different from a PVC or NM job how? :grin: