I've got a property with an existing very sluggish electrical installation which consists of a service drop at property entrance, no main disconnect and a 130' underground run to the living space (house) where a main panel is badly wired up. I am about to correct this and install a breaker at service drop and wire up the panel correctly.
This is a follow up to a question of mine about the needed ampacity of the main disconnect breaker in this situation.
My service comes in here (please don't even comment the hooked up appliance...):
In the before mentioned question there's an illustration of the service providers specs on what this should look like.
Well there's a small diameter red wire coming out of the meter which is not supposed to be there and gets lost after a few inches of conduit...
There's also a bare ground wire coming through when the ground rod is actually on the meter side and it also gets lost in the conduit further along the run.
The neutral here should apparently be hooked up to the ground from the meter (I hope it is, I'll call the company when I'm about to install the disconnect to pull the meter). I'm currently about to choose this panel as my main disconnect with a double pole 70A or 50A breaker (depending on my investigations on the gauge of the cable run):
From the service drop the phase and the neutral wires run as #8 THWN (or #6, currently trying to figure out; most probably #8 because that's the spec of the provider and cheaper...) in 3/4" semi-rigid conduit underground to the "main" panel which is a total mess (as well):
At this panel there's a grounding rod bonded to the neutral bar as expected on a main panel.
(I'll rewire most of this)
If I install a main disconnect right behind the meter where do I need to ground?
I suppose that the disconnect would be grounded through the neutral because of the meter? Would that make the existing panel become a sub panel and call for a separate grounding bar even though being 130' away?