Maximum run of flex aluminum conduit?

[toaduu]

Is there a maximum run for flex conduit in indoor applications?

I've never used the stuff before and I never noticed any tables in my reference books, but there's got to be a limit right?.

 

[TOOL_5150]

Is there a maximum run for flex conduit in indoor applications?

I've never used the stuff before and I never noticed any tables in my reference books, but there's got to be a limit right?.

THe only limit is being able to actually pull conductors through the conduit. Remember FMC has a 360 degree max and every little bend, technically, counts. So, basically no, there is no length limit.

Just remember to pull a ground.

~matt

 

[Lcdrwalker]

They even make couplings for the stuff.

 

[TOOL_5150]

They even make couplings for the stuff.

Yeah, those things have saved my rear a couple of times in the past. Now that I think of it - I need to add a few to the newest supply list!

~Matt

 

[e57]

Is there a maximum run for flex conduit in indoor applications?

I've never used the stuff before and I never noticed any tables in my reference books, but there's got to be a limit right?.

Put a pull string in it before you enclose or conceal it. It aint great to fish through anyway when its long - even more so when you cant get a fish in it in the first place.... The slightest sag will add friction, add a few and you're finished in a long run.

 

[alfiesauce]

I've found that a nylon fish tape with a leader will slide through most flex runs really nice.

 

[tryinghard]

Is there a maximum run for flex conduit in indoor applications?

Check out Article 348, and it is a "conduit" as far as bends go (348.26).

If used as the equipment ground follow 348.60 to 250.118(5) -- 6' plus some other specifications.

 

[480sparky]

Length of run is limited only by your ability to pull conductors through. If you buy 2500' spools of wire, you can install 2499' of FMC.