Aluminum conduits

[anbm]

Is there a reason contractor should not use AL conduits?

 

[sameguy]

It was speced for galvrig?
Little more detail.

 

[petersonra]

Is there a reason contractor should not use AL conduits?

There are reasons to use it.

Lighter weight.
Corrosion resistant to some things that galv steel is not.

There are reasons not to use.

Cost.
A little bit of a learning curve if not used before.

If a customer wants it and it is appropriate no reason you can't use it.

 

[drktmplr12]

Is there a reason contractor should not use AL conduits?

can't be placed in direct contact with concrete, the aluminum will corrode

 

[Jraef]

If used on the output of a VFD or anything else that uses PWM (such as an on-line UPS, servo amplifier etc.), steel conduit shields about 95% of the EMI/RFI radiation from the conductors. Aluminum conduit, being non-magnetic, only shields about 5% so is not recommended for that application.

 

[iceworm]

I never liked it. Hard to thread. Dies tear the threads. Never found a good cutting fluid. That was thirty yeas age. Maybe there are better fluids now.

 

[LarryFine]

My one experience with it tells me it can not be unscrewed after several years outdoors.

 

[masterinbama]

I never liked it. Hard to thread. Dies tear the threads. Never found a good cutting fluid. That was thirty yeas age. Maybe there are better fluids now.

Thin your oil with kerosene or mineral spirits. Threads will cut clean. I also put nolox on all joints.

Sent from my LML211BL using Tapatalk

 

[Dennis Alwon]

I agree it stinks.. If your dies aren't really sharp you can actually warp the end your threading. I have seen some of it not come apart after years as Larry stated.

Didn't know about the shielding- thanks Jraef