Rigid metal and aluminum conduit

[domnic]

Rigid metal and aluminum conduit supports spaceing. ( nec 2011 ) ????????????????????????????????????????????????????????

 

[petersonra]

Rigid metal and aluminum conduit supports spaceing. ( nec 2011 ) ????????????????????????????????????????????????????????

for RMC the requirements are found in 344.30(B).

 

[domnic]

for RMC the requirements are found in 344.30(B).

is 344.30 for emt conduit also. THANK YOU

 

[infinity]

is 344.30 for emt conduit also. THANK YOU

EMT and RMC have similar support requirements but they are not entirely the same. RMC allows up to 20' of vertical conduit to be unsupported under some specific conditions.

 

[DrSparks]

Securely fastened within 3 ft, supported every 10.

Securely fastened means it can't be pulled out of it's fitting. Supported just means held up.

For EMT, you can extend securely fastened up to 5 ft if there is no structural support within 3 ft.

For RMC, you can drop the conduit vertically for up to 20 ft if the couplings are made with threaded fittings wrench tight.

Sent from my BE2028 using Tapatalk

 

[petersonra]

Securely fastened means it can't be pulled out of it's fitting.

Where does it say this in the code? In any case, if the fitting is made up correctly you are not going to be able to pull the conduit out of the fitting anyway.