Harold, this is not a good method of support. Any electrical installation regardless of any other systems, even if just water, should not be attached to a system for support.
An independant means of support such as unistrut attached to the floor would be better. Look at the NEC and using conduit as a means to support other conduit in article 300, it is basically not allowed. (I don't have my code book at home right now or I would be more specific)
My point is I'm sure there are other codes to consider beyond the NEC in this case.
I don't normally shoot from the hip, but I would suggest a change in any case.