I have an installation where EMT has been installed at the finished floor. The location is indoors, but in a mechanical room where equipment can theoretically be moved if necessary for maintenance. The location is dry, and no major lifting equipment (i.e. - fork truck traffic). However, looking at 358.12 (1) and being in proximity to the floor, I'm concerned about severe physical damage. The conduit contains control or low voltage power cable associated with a building automation system. Would I have an argument related to this installation?
EMT Installation at Finished Floor
- Thread starter msimms
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qcroanoke
Sometimes I don't know if I'm the boxer or the bag
- Location
- Roanoke, VA.
- Occupation
- Sorta retired........
I would be more concerned with 358.30 (A)
Looks like 10 ft. is being pushed on that installation.
358.12 (1) I personally would not try to apply to that.
But subject to Severe damage is open to interpetation.
Looks like 10 ft. is being pushed on that installation.
358.12 (1) I personally would not try to apply to that.
But subject to Severe damage is open to interpetation.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
Any location is subject to damage, how likely is what is subject to interpretation.
Was mentioned no fork lift traffic, that is a good start at saying the risk of damage isn't very high. That don't necessarily mean that a forklift could never be present, but if not present on any kind of regular basis, most will say that risk is minimal.
Was mentioned no fork lift traffic, that is a good start at saying the risk of damage isn't very high. That don't necessarily mean that a forklift could never be present, but if not present on any kind of regular basis, most will say that risk is minimal.
Coppersmith
Senior Member
- Location
- Tampa, FL, USA
- Occupation
- Electrical Contractor
Based on what I see the biggest danger is the pipe being kicked or run into with a cart. Since it looks like the supports are spread out (though compliant), the pipe looks like it might flex a lot. If this is so, the couplings might come loose from this flexing. If your grounding relies on tight couplings (and not a ground wire), this would be an issue. Additional supports to make the pipe non-flexible would probably solve this issue.
Strathead
Senior Member
- Location
- Ocala, Florida, USA
- Occupation
- Electrician/Estimator/Project Manager/Superintendent
There might be one conduit that violates the 3' from a box, but the rest is optical illusion since the one conduit with a couple close to the left is one piece including a 90 and the stub to the box.
As far as subject to damage, I agree. The only "leg" the OP has is a look at the specs, because I see a lot of Engineers who put clauses regarding this in their specs. I think it is a waste of money. Even if there was forklift traffic, the equipment and boxes are far more of an issue.
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