Are you really going to use all 20A on this circuit? Do you really need 120V at the end of it? I don't know of much equipment out there that would know or care if its voltage got down to 110V or even 105V.
I was thinking so ??
1) Planning on two lights on two columns ( as in the calculator, over 5 amps on 12's voltage would start to drop. Not knowing in the future if they would like to add more lighting on to it)
2) Planning on a receptacle on each column (depending on whats being plugged in could cause a substantial drop right. For instance, to go across the driveway I'm thinking of renting an electric jack hammer. Googleing shows these jack hammers a 15 amps. Not that when the job is done the owner would be in need of jack hammering later on. But may install other lighting or need for other equipment. (drag is this would have been the perfect opportunity to use a new eu2000i honda inverter generator I just picked up.. but can't cause I don't want to kill it)).
3) Planning on Gate openers. Not sure if they will be piston type that plug in, or hard wire units ??
What would you suggest?
At first, my thought or game plan was to bring out 4-1" conduits.
1 for HV, 1 spare, 1 for LV, 1 spare.
Then with the length of the pull and probably going with the 6's (and seeing 1" is good 6 conductors, which would be 3 circ's using 6's.. grd, h1-h2-n1, h1-n2) I'm now thinking to do 4- 1 1/4" instead.
Recommendations ?
I would sure hate after ripping up these people's lawn (actually it will be controlled) to have issues with under voltage or conduits that are to small.
..."If I understand what you are wanting to do use 10AWG NM from the panel to where you are crossing over to conduits and you are good to go.
You get to use a larger wire than 12AWG and the egc is upsized automatically."...
"If" the conduits have the #6 ground with the #6 wire circuits. I could feed that #6 ground with a #10 ground ( from the nm) even if the panel is 30' away from that splice point??
Again, any suggestions appreciated. When I first came across this (last year) my thoughts where to run 10's in a 1" out to the columns.
But now as you see it went from 10's to 8's to 6's....
I would much rather work with the 1" but... I'm ASCARED...
The insanity !
Thank you.