Emt on cinderblock

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Sburti said:
Thanks... The moisture on the block is enough to eat it away. I've seen it. Wasn't sure of the code.

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That moisture is usually only a problem in basements - but not necessarily all basements. Moisture may still be a problem if not true cinder in the concrete but the cinder presence will make it worse. I see a lot of corrosive effects on most any masonry surface that remains damp most of the time.

just the cowboy said:
I'm in NePa and never heard of it, nor when I was from Philly. But if it is an issue use mineralacs.
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Those are galvanized as well. Just takes longer as the clamps need to deteriorate first then the raceway can get started;)
 
ActionDave said:
Reminds of of a product from Arlington. These are great. Quick to install and easy to use. I don't think I would use them outdoors though.

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I would use them for some types of installation EMT inside might be one I would use them for but those things are also listed for RMC.

The parking garage at my local mall had those holding all the RMC on the ceilings and walls, I would bet less than 1% are not broken. Now the boxes are supporting the conduits. :happysad:
 
iwire said:
I would use them for some types of installation EMT inside might be one I would use them for but those things are also listed for RMC.

The parking garage at my local mall had those holding all the RMC on the ceilings and walls, I would bet less than 1% are not broken. Now the boxes are supporting the conduits. :happysad:
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Steel version of the clamp may not break, but in the parking garage situation you may want more then a simple wedge anchor to mount it with.
 
This technique is used in the oil field industry especially with sandridge answer tri state electrical in North Oklahoma rigid conduit is strapped on top of the concrete blocke

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iwire said:
I would use them for some types of installation EMT inside might be one I would use them for but those things are also listed for RMC.

The parking garage at my local mall had those holding all the RMC on the ceilings and walls, I would bet less than 1% are not broken. Now the boxes are supporting the conduits. :happysad:
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I'm pretty sure they are listed for emt too.

I would not even consider them for a parking garage. You need stuff that's more than bullet proof to survive in that environment.
 
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