Bushings on RMC - 11/10/05 05:59 PM
Hello Guys and Gals:
Just wanted to see what the prevailing opinion is concerning 2005 NEC 344.46.
I feel this states that all RMC entering a box, etc. requires a bushing. This is also the way I have always installed RMC.(even when it was called GRC
Several other inspectors disagree and believe the FPN referring to 300.4(F) indicates this is only true for #4 and larger.
I believe the Code panels do not repeat themselves and the FPN is simply a way to give additional information regarding wires #4 and larger and has nothing to do with the requirement for bushings on all RMC.
FWIW The situation is a new installation with multiple 3/4" RMC stubs into the bottom of several panels. The number is close to 50, so it would be a large amount of re-work to install the bushings as these panels are hot and the building is almost ready for occupancy.
Thanks,
Jim
Just wanted to see what the prevailing opinion is concerning 2005 NEC 344.46.
I feel this states that all RMC entering a box, etc. requires a bushing. This is also the way I have always installed RMC.(even when it was called GRC
Several other inspectors disagree and believe the FPN referring to 300.4(F) indicates this is only true for #4 and larger.
I believe the Code panels do not repeat themselves and the FPN is simply a way to give additional information regarding wires #4 and larger and has nothing to do with the requirement for bushings on all RMC.
FWIW The situation is a new installation with multiple 3/4" RMC stubs into the bottom of several panels. The number is close to 50, so it would be a large amount of re-work to install the bushings as these panels are hot and the building is almost ready for occupancy.
Thanks,
Jim