Paul Morocco
Member
What are the correct methods required to comply with NEC 830 in grounding and bonding the Radio and mounting Hardware for a network powered communications system. This is referred to as Power over the ethernet POE type radio with both a built in antenna in the 12 by 14 inch panel, or a remote antenna 6 foot away from the 12 by 14 inch panel.
Application one: The antenna is mounted at the top of a 60 foot wood pole with rigid conduit feeding from the building 100 feet away. The rigid conduit continues up the pole to a jbox and than metallic sealtite to the radio. Can the rigid conduit server as the ground to the bottom of the pole where it than is bonded to a ground rod? Or do I need an insulated number 6 stranded copper feeding from the Radio mounting hardware down the pole to the ground rod. What is also needed at the building?
Application two: The same as one but it is mounted on a steel water tower.
Application three: Mounted on a roof top next to a video camera. 120 volts is powering both low voltage transformers.
Finally, I know it is recommended to use a lightning surge protection such as polyphaser for POE, but is this required by code?
Option one the radios are fed using a Cat5 type cable. Option two the radios are fed with a coax type cable.
Application one: The antenna is mounted at the top of a 60 foot wood pole with rigid conduit feeding from the building 100 feet away. The rigid conduit continues up the pole to a jbox and than metallic sealtite to the radio. Can the rigid conduit server as the ground to the bottom of the pole where it than is bonded to a ground rod? Or do I need an insulated number 6 stranded copper feeding from the Radio mounting hardware down the pole to the ground rod. What is also needed at the building?
Application two: The same as one but it is mounted on a steel water tower.
Application three: Mounted on a roof top next to a video camera. 120 volts is powering both low voltage transformers.
Finally, I know it is recommended to use a lightning surge protection such as polyphaser for POE, but is this required by code?
Option one the radios are fed using a Cat5 type cable. Option two the radios are fed with a coax type cable.
