Nice and overbuilt! I like it!

When I go to Cabstrut ( the main supplier) all the racking is made from the products they sell. A lot of the inside of the warehouse, like sliding gates and dividers, are built using strut and associated fittings.

I work at Graybar and our main supplier of strut is Cooper (B-Line), but we also sell and distribute Unistrut stainless steel strut through Eberl Iron Works for a couple of our customers. We used to carry Thomas-Betts Superstrut. And get this, at Eberl, not only is the shelving, but the upper flooring and stairs are built entirely from the products they sell. For those of you interested in the materials list and measurements for mounting a luminaire arm on a jackpole or steel fencepost, you'll need the following: Two each 6" (four slots) and 18" (nine slots) of 1-5/8" channel strut, 3/8" hex bolts with either spring nuts or I used strut nuts that fit the slots on the opposite side and act as reverse carriage bolts. You'll also need two 4" U-bolts with associated hardware. This will give you your frame. Then you can attatch either 7/8" or 1-5/8" strut and mount your luminaire arm accordingly. I use a 1-1/2" galvanized steel pipe and elbow with a 1-1/2"-1/2" reducer for the Sealtite fitting.

Nice work! What would happen when mounting a street light without this weight-distributing system on a support pole? Would the pole fail or is this just an extra thing you did?

Well, I originally just used two pieces of strut, the clamps, and the U-bolts. The idea here was to spread the weight more evenly. But nothing happened.

Is there a risk of something happening if the weight is poorly distributed? like if the arm was simply clamped with U-bolts onto the post?

Obviously, you don't want to crimp the jackpole but there was no problem, considering I am using galvanized steel for the arm.

What are the odds of that happening though? Isn't the jackpole supposed to be strong? I mean it's practically the backbone of the whole house! I guess since you have a couple M-1000s they could do some stress on the pole lol. I guess it's just because I'm thinking from the perspective of a 30 pound OV-10 or M-250A.

I like this setup, looks wonderfully overbuilt! And all the wiring is well-done!

It helps to have knowledge of electrical products and that you know how to use them. I made it a point to keep everything to code, and exceed code specs as much as possible. For example, that green wire is a ground that goes to my Eagle Durasig traffic light. I have that taped to the main ground lead which goes from the water supply pipe to the box, but goes in the opposite direction and since I'm using #14 bare solid for the main ground, it makes a nice support for the ground lead to my traffic signal.

I see...
Forgot till now to mention that you taught me the name of strut. I knew what it was and see it in use all the time, but now I know what to call it!