Air Comp plugged into wall outlet
Air Comp plugged into wall outlet
(OP)
I have a couple of situations in a mine where riser mounted 3/4 hp compressors are supplying air for dry systems. They have cords installed and are plugged into wall outlets. The mine electrician doesn't seem bothered by this but it seems very unsatisfactory. Thoughts?





RE: Air Comp plugged into wall outlet
RE: Air Comp plugged into wall outlet
If the power failed and the system lost air pressure, couldn't that cause a problem?
RE: Air Comp plugged into wall outlet
Thanks also PEDARRIN2 but my concern was more to do with what appeared to be a rather flimsy way to connect the compressor (which is part of a life safety system) to the power supply. Whether or not it is a part of an emergency circuit is not really a part of my purview, though I must ensure that the air supply is reliable. If this particular circuit goes down and is not noticed, the low air pressure signal still must indicate to the FAP and/or central monitoring station if low air becomes a problem.
Regards
Dave
RE: Air Comp plugged into wall outlet
UL Fire Protection Listing
UL File EX5324 - UL2125 Motor-operated air compressors
for use in sprinkler systems.
RE: Air Comp plugged into wall outlet
The power supply isn't required to be supervised either. The client obviously would like the dry system to be reliable. No one wants busted pipe due to freezeups from accidental trips.
RE: Air Comp plugged into wall outlet
Joe G. Willett
Jacksonville, AR