90's in pipe run, also underground pvc

[iwire]

I agree there needs to be a number but 360 doesn't always make since.

OK lets say they chose six 90s and you went ahead and piped a building like that, then after the finish was up you could not get a snake through most of them.


Now that would not make sense,

So the requirement is no more then 360 degrees between pull points but you don't have to pull from each one they only have to be there.

 

[infinity]

We put in cee condulets in our runs to satisfy the NEC but pull straight through them.

For large conduit installation most C condulets will not satisfy the NEC as a pulling point. For example you are permitted to pull 3-500 kcmil conductors within a 3" EMT but most of the 3" C condulets I have seen do not permit larger than say #4/0 or 250 kcmil conductors. So that C condulet may be good for getting the snake through but usually does not satisfy the requirement for a pulling point.

 

[boyle78]

352.53 makes it pretty clear to me. Realizing that underground temps may stay relatively constant, one could argue not using expansions in these environments...but i would rather be safe than sorry and use them instead. I did find a previous thread on this same subject, but only after I posted this one...there is so much info on this site it's sick!
thanks for the input.

 

[Jim W in Tampa]

OK lets say they chose six 90s and you went ahead and piped a building like that, then after the finish was up you could not get a snake through most of them.


Now that would not make sense,

So the requirement is no more then 360 degrees between pull points but you don't have to pull from each one they only have to be there.

And just who's problem would it be BOB ?Perhaps with limited tallent it would be a problem but southern boys would get it done