EMT Support

[tldouglas]

I could swear that in the old days, EMT was required to be supported with-in 3ft of every connector and every coupling. We've check the NEC back to 1996 (earliest book we have) and still didn't see this requirement. Does anyone have recollection of this pre-historic code requirement or am I just getting that old?
Thanks

 

[iwire]

I could swear that in the old days, EMT was required to be supported with-in 3ft of every connector and every coupling.

It used to be, now just at terminations.

I don' have the 1993 but in the 1990 331-11 says within 3' of each fitting.

Edit, 348-12, not 331-11

 

[480sparky]

It used to be, now just at terminations.

I don' have the 1993 but in the 1990 331-11 says within 3' of each fitting.

That first appears in the '65 under 348-12. It disappeared in the '99.

 

[iwire]

BTW my code reference should have been 1990 348-12

 

[quogueelectric]

You are even allowed to go as far as 5 feet at at termination where structural members do not readily permit fastening within 3 feet on unbroken lengths of pipe. Such as bar joists spaced 5ft apart you dont have to add additional support as long as you are strapped within 5 ft on a 10 ft stick 358.30 (A) exception no. 1

 

[don_resqcapt19]

The use of the word "fitting" in the old code support rule was not correct. It is just like the old rules that said you could have 360 degrees of bend between conduit fittings. The code making panel was thinking that the word fitting means conduit body. Both code sections were changed because someone finally looked at the Article 100 definition of fitting. There was never any intent to provide EMT support within 3' of a coupling, but that is what the words said before they were changed.