Service Entrance

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npower22

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in a residential application, is emt allowable from the LB to the electric panel inside the residence, everything on the outsidefrom the load side of the meter to the LB is Rigid, as is the riser?
 
EMT is fine.
Just make sure that the distance that the service wires run inside the house is acceptable to your local inspector, since the NEC does not define the allowed length.
And of course make sure that you use the right fittings to attach your EMT to the LB.
 
and also don't forget you will be parrelling the neutral from the meter to the first disconnect. I still ponder that. I did a 400 a (320) ans used all ridged conduit. Inspector had no issue neither did utility.
 
FREEBALL said:
and also don't forget you will be parrelling the neutral from the meter to the first disconnect. I still ponder that. I did a 400 a (320) ans used all ridged conduit. Inspector had no issue neither did utility.
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Not quite sure what you're talking about here. OP didn't mention using parallel conductors, or any conductors as far as that goes.:?
 
I think that it was a reference to a metallic raceway connection in addition to a ground/neutral bond at each end?

Although I don't think anything in the OP implied bonding at each end, except implied by meter socket construction.
 
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FREEBALL said:
and also don't forget you will be parrelling the neutral from the meter to the first disconnect. I still ponder that. I did a 400 a (320) ans used all ridged conduit. Inspector had no issue neither did utility.
Click to expand...

Little Bill said:
Not quite sure what you're talking about here. OP didn't mention using parallel conductors, or any conductors as far as that goes.:?
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My take is the fact that he has EMT from the meter to panel, as well as a wire type grounding conductor ? I've been wrong before too...
 
Been discussed previously. As I recall it is looked upon as a "accepted" violation of 250.6.
 
The NEC does not recognize the running (constant diameter) threads of the connector as a fit for the tapered pipe threads of the LB.
Unless it has somehow been listed for that specific use.
 
npower22 said:
in a residential application, is emt allowable from the LB to the electric panel inside the residence, everything on the outsidefrom the load side of the meter to the LB is Rigid, as is the riser?
Click to expand...

No what i ment is that I installed a 150amp single phase service in 1 1/2 conduit condiut 2/0 wire rigid on the outside and where i entered the house, I converted to EMT. It got tagged the inspector said that they are unprotected service conductors and that I needed to have rigid all the way to the panel. I had never heard of this before. 20+yrs Located in northern Illinois
 
texie said:
LOL. And just how does one connect EMT to an LB in a manner consistent with the listing?
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Use the correct LB? :)

One that takes both EMT and Conduit.


AL_EMT_Cond_Bodies.jpg
 
npower22 said:
No what i ment is that I installed a 150amp single phase service in 1 1/2 conduit condiut 2/0 wire rigid on the outside and where i entered the house, I converted to EMT. It got tagged the inspector said that they are unprotected service conductors and that I needed to have rigid all the way to the panel. I had never heard of this before. 20+yrs Located in northern Illinois
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Service conductors are allowed to be protected by EMT. Sounds like a shirt pocket rule or a local way of doing things.

Did you get a chance to talk to the inspector?
 
If the right angle end of the LB is inside the wall and sealed at the wall surface, you would not need the EMT connection to be watertight.
 
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