patrox2000
Member
- Location
- Baltimore, MD
Hello all,
A client wants wooden light poles for their parking lots. These poles have an internal 1” square cavity running the entire length of the pole, which the manufacturer says can be used to run wires to the fixture at the top of the pole. However, the manufacturer cannot confirm if this is acceptable per the NEC. Does the NEC allow running THHN wires inside wood poles? Or do I have to insert a PVC conduit in this cavity? Or maybe run liquid-tight FMC inside? Please provide an NEC reference to back up your answer.
Thanks.
A client wants wooden light poles for their parking lots. These poles have an internal 1” square cavity running the entire length of the pole, which the manufacturer says can be used to run wires to the fixture at the top of the pole. However, the manufacturer cannot confirm if this is acceptable per the NEC. Does the NEC allow running THHN wires inside wood poles? Or do I have to insert a PVC conduit in this cavity? Or maybe run liquid-tight FMC inside? Please provide an NEC reference to back up your answer.
Thanks.