Here is the environment:
I have a very very large room. This room houses very 2 supply fans "blowers" which blow air into this large open room and pressurize the room. The high pressure air is diverted into a system to supply fresh air to a later portion of the facility. This is a "plenum chamber". The room has the motors etc for the blowers within it. Now I would like to supply these blowers with thhn but keep think I need plenum rated wire. Since I'm running it in emt then I should be ok with thhn correct?
I have a very very large room. This room houses very 2 supply fans "blowers" which blow air into this large open room and pressurize the room. The high pressure air is diverted into a system to supply fresh air to a later portion of the facility. This is a "plenum chamber". The room has the motors etc for the blowers within it. Now I would like to supply these blowers with thhn but keep think I need plenum rated wire. Since I'm running it in emt then I should be ok with thhn correct?