jar546
Forum Coordinator
OK, so who requires a ground rod at light poles whether direct burial or built with a concrete cage?
Why do you require it if you do?
Why do you require it if you do?
I do not require them. Two of my inspectors do and if they are shown on the plans I am ok with that.
The NEC does not require them.
The Lightning protection institute does not require them nor does NFPA 780.
If you think your protecting the circuit in the building think again. A surge protector will
do a better job.
We have had that discussion. My position is that if that are on the engineered plans than ok! I agree they don't do jack for lighting protection. What should be done is a group convince NFPA to take a stand. NFPA 780 does not require them. I am not interested in that job. I got ICC to have remote voting by being an absolute pain. They were fun times with sprinkler fix and calling out Sims and what him to debate on this site.
I am now older, not much wiser and just don't need to die on that hill.
Never thought about the ground conductor getting loose or disconnected. Interesting point, but that could happen with any ground conductor. Most of the light standards are set on a concrete tube that at contains a cage of rods and wire with bolts attached to the pole, would this not create a ground path for lighting strikes?
And if why?
For commercial? How tall and what supports them? Are they like a flag pole in a sand sleeve?
10’ is a deep hole
I’d be afraid of hitting something
Like a POCO primary
Jeff
I've seen a grounding rod on almost every light pole base detail I've looked at.
Should the grounding (green or bare) conductor be connected to the ground lug on the pole, and the grounding rod omitted?
Interesting detail! The anti-rotation wing does it come as part of the pole? Because fiberglass does not have much resistance to keep from rotation. The light mounts on top with no arm?
Last, don't think they would work in northern PA.
Chris you should hit the primary long before you reach ten feet.
On the East coast a service entrance conduit is not permitted to be inside a wall yet bare cable is allowed to be buried 18" deep. Light poles are allowed to be made of fiberglass and have no concrete cage. The drawing says that the pole will withstand 170 mph wind and there's a little wing on the bottom to prevent rotation. If I hadn't seen the drawing and all I had was this written description I wouldn't think that it was real. It's like the garden hose in Texas. Fiberglass light poles........Do they need a bicycle barrier?
18" depends on where it is located among other factors. That is a national code. Not sure what the fuss is all about.