NEC Pull body questions


  #1  
Old 08-05-14, 09:44 PM
J
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NEC Pull body questions

I am running a sub panel in a detached garage using 4 xhhw and 1" conduit the whole way. I know this meets the requirement for conduit fill but in hind sight at least 1 1/4 would have been a better choice.

My question is related to 300.4(G). Does this requirement apply to LB's and would the following meet the requirement?

Also should i be concerned with the bend radius in a 1" LB?

Shop Gampak 1-in Rigid Bushing at Lowes.com

or

Shop CANTEX 1-in Schedule 40 PVC Adaptor at Lowes.com
 
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Old 08-06-14, 12:46 AM
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You can fit up to four #4 wires in a 1" pipe.

300.4(G) states that you need to use bushings on conduits/fittings where #4 or larger wires are present.
So yes.... you need to use a 1" bushing on the fittings where they enter the panel.


I'm not sure why you've listed a PVC reducing bushing here.

This is the adapter/connector used to connect 1" PVC conduit to a panel. You would use a locknut and a bushing on it.

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  #3  
Old 08-06-14, 07:42 AM
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Shop CANTEX 1-in Schedule 40 PVC Adaptor at Lowes.com
this is not a PVC reducing bushing ...............it is a PVC slip chase nipple. doesnot takeup much space in the box.

it works very good where you are connecting a pipe you canot move to a box you canot move. run your pipe to the box...end it with a coupling tight on the outside of the box...the box adaptor is glued in from inside the box.
 
 

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