[tom_poconos]

Hi, I've been sifting through the various options to properly secure conduit at the NEC mandated 3' intervals but I don't see any fasteners for conduit that has already been installed, and without offset bends. I have conduit running between boxes without any offsets. I'm wondering what options are available here... I guess it did things in the wrong order.

I know about one & two hole straps (they require offset bends) and I know about conduit clamps (they require a screw beneath the conduit). There must be something in between, i.e a conduit clamp that is fastened at the sides like a 2 hole strap?

Any advice appreciated!

 

[Jim Port]

What type of conduit is it?

 

[tom_poconos]

What type of conduit is it?

Sorry - 3/4" EMT.

 

[longdrive]

Not cost effective, but Unistrut!

 

[Nickd83]

You could put these between the pipe and the wall and use one hole straps to complete the strapping:

https://www.amazon.com/Morris-14783-Malleable-Rigid-Spacer/dp/B00VNVVCDE

You may have to use a large screwdriver or pry bar to give you a little extra room to slide them in.

 

[Jim Port]

EMT does not need to be secured every 3'. One strap every 10' and within 3' of each box.

 

[surferdude2]

There are several types of stand-off clamps available.
°
°
Clamps

 

[surferdude2]

I always made do with these since it's what all the supply houses had in stock. You have to spread eagle them to slide them under the conduit and then be a little adept at getting at the screw but they get the job done. As mentioned, you only need two on each 10' typical run.
°
°

 

[surferdude2]

There are several types of stand-off clamps available. The one pictured below is available at Home Depot. Plumbing dept.
°
°
Clamps

 

[darren]

How much space is there between the boxes?

 

[tom_poconos]

Thanks all for your suggestions. I might take a closer look at Nickd83's suggested "Clamp Back Spacer".

surferdude2's suggested "Stand Off Pipe Strap" looks ideal but the legs look too long.... if only it was a bit shorter. But I could also modify this clamp's height with some metalwork.

The other issue I have is the clamps are being fastened with 1/4" masonry anchors. The material is plaster and brick, and it's not a strong hold a lot of the time.

EMT does not need to be secured every 3'. One strap every 10' and within 3' of each box.

Thanks for clarifying, I mixed that up.

How much space is there between the boxes?

It varies - there's one part that's less than 3' between boxes, but I believe a clamp is still technically required. I might skip that one.

Attached is a sketch of another design that could work, but all I could find are these and they're 4 bucks a pop, which seems outrageous for a 3/4" strap. But probably fine for just the exposed area where I think I only need 2 clamps with masonry anchors.

 

[CodeMatters]

EMT does not need to be secured every 3'. One strap every 10' and within 3' of each box.

Interesting. That would be approximately (metric) the same as
is required for 1" and 1-1/2" here. 3/4" requires (approx) 3' and
5' based on CEC/OESC.

 

[Oldmaster]

Another option would be to buy offset connectors.