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Old 11-04-17, 09:45 PM   #78
nokiasixteth
Journeyman EcoRenovator
 
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Quote:
Originally Posted by where2 View Post
For my micro-inverter system, I looked closely at what the micro-inverter trunk cable is, and duplicated the specifications of it. Trunk cable is four conductor sunlight and oil resistant jacketed 12AWG tray cable, which I supported between the rails on custom fabricated and painted aluminum support bars (1/8"x3/4" aluminum flat stock) that I simply screwed to the rails. I then used stainless tie wraps to lash the tray cable to my support bars. (plastic tie wraps didn't have the life expectancy I wanted for the system).

In my case, when I needed to transition cable types on the roof, I went through a Hoffman fiberglass enclosure with UL Listed industrial wire terminals. When my inspectors looked at the connection boxes and didn't find wire nuts, they were impressed by the fact that it looks like it fell out of some industrial installation. When I transitioned from stranded 12AWG trunk cable to the solid 10/3+G UF wire in the attic, I went through more industrial wire terminals inside a PVC junction box.
So yours basically rest inside a custom made holder (not conduit) you made on your roof to the junction box then from the box out to the meter it is conduit ?
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