ok, so Im planning on putting in a new a new 200a panel with a few spaces on the downstream side of the existing service disconnect.
I'll run appropriate size copper to this new panel mounted w/in a few feet of the existing pole. I'll have a 100a breaker to service the cabin (there is already 2/0 copper to the cabin from the existing service disconnect, I'll reroute). I'll have an 85a breaker for service to barn and I'll reroute the existing #4.
My next question is on grounding and bonding.
In the existing service disconnect, the neutral and ground are connected (though I don't see a bonding screw) and I'm assuming neutral is bonded by the fact the ground/neutral strap are one and the same,:
So, assuming the 1st service diconnect is bonded, I should ensure this new panel Im putting is unbonded as well as any downstream subpanels, correct?
If so, I notice another problem w/ existing service in cabin, the subpanel in cabin appears to be bonded as the box doesn't have separate straps for ground and neutrals:
On to the barn:
Though there is no other metalic connection to barn whatsoever, I believe I need to pull a ground as well(i'll have 3 #4 and 1 #6 from new panel to barn) to meet 2008 code.
I should leave subpanel in barn UNBONDED, correct?
Do I need a ground rod at the barn as well?
Thanks for all the help!