M mpeck@h2e New member Location Spokane, WA USA Oct 5, 2012 #1 Does anyone know what the definition of 'free air" is? as in cables in free air.
Dennis Alwon Moderator Staff member Location Chapel Hill, NC Occupation Retired Electrical Contractor Oct 5, 2012 #2 That would be like a service drop where the wires run from pole to pole or overhead from one building to another.
That would be like a service drop where the wires run from pole to pole or overhead from one building to another.
infinity Moderator Staff member Location New Jersey Occupation Journeyman Electrician Oct 5, 2012 #3 Although it's not a code definition in my mind it conductors that are not in a raceway or cable. I would have to think about in cable trays since they're a support system and not a raceway.
Although it's not a code definition in my mind it conductors that are not in a raceway or cable. I would have to think about in cable trays since they're a support system and not a raceway.
D dicklaxt Senior Member Oct 5, 2012 #4 I agree with both,we always used the free air parameters for tray and aerial cables. dick