Support means

[chipster]

Where metallic conduit passes through a bored concrete wall, or any wall for that matter, could this be considered a (sole) means of support? Where in the code does it reference this?

 

[barbeer]

I don't know that I understand the question? I could see not needing support any closer than 10' from where conduit passes thru a wall but that should not be the ONLY support.

 

[chipster]

Support means

I realize that the requirement for support means for EMT is 10' max., but our facility's local standards call out for 7' centers. We have a situation where a conduit is entering from the outside through a core-drilled concrete wall. Our electrician is counting the entrance through the opening as a means of support to satisfy the 7' requirement. I am inclined to agree with him if he grouts around the wireway to fill the hole. He said that any opening through a wall is considered support to the run. I am thinking of support as a listed and approved strap or clamp etc. Does it mention that somewhere in code?

 

[barbeer]

358.30 (B) for EMT other types of conduit have their own sections, look for "securing and supporting" I would consider a poured wall kind of a framing member.

 

[chipster]

Support means

Thanks! I can agree with that.

 

[allenwayne]

Is emt passing through a bored hole in concrete any different than Nm passing through lets say a fire block and not being stapled within the required distance from the actual box.To me a bored hole in structrual lumber constitutes secured,as long as within the given ins. from the box.

Ducking for cover and looking for those stones I know are going to be thrown

 

[tkb]

I am thinking of support as a listed and approved strap or clamp etc. Does it mention that somewhere in code?

Supports do not have to be listed or approved.

 

[Paul B]

I know guys who use rebar tie wire to attach conduit to bar joists.

 

[mdshunk]

I know guys who use rebar tie wire to attach conduit to bar joists.

I have seen that method many times. I don't like it, but it must pass. Matter of fact, a conduit passing perpendicular through bar joists, resting on the bottom chord with no additional hardware, is "supported".

 

[Paul B]

I have seen that method many times. I don't like it, but it must pass. Matter of fact, a conduit passing perpendicular through bar joists, resting on the bottom chord with no additional hardware, is "supported".

Yea I see it to. Looks like heck. But like you say it must pass.

 

[barbeer]

Rebar tie wire? Galvanized I hope, wouldn't want any dissimillar metal action goin on.

 

[tkb]

Why would tie wire have to be galv?

Uncoated tie wire is steel as well as the conduit.