Trailer Electrical Ground/Frame and Solar
The negative terminal of the battery goes to the frame via 6ga wire. And I think the AC ground goes to the frame when we're not off-grid. I'll wire the MPPT controller with two 6ga wires going to...
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Sounds like a nice match up of panels and controller.
I was looking more at the GFPD for solar and Morningstar now makes a couple of them, they both mate logistically, with other Morningstar controllers. They basically serve as interruption similar to other GFI devices with the current differential being 300ma at interruption. Morningstar also notes that all PV devices also be grounded to earth ground. In the OP's case, he would not be making the connection from PV devices to frame ground any easier by using a dedicated GFPD.
I'm sort of old school about grounding, I don't like to connect grounds together at an intermediate junction point or multiple points, choosing to establish a direct path to the most direct point to earth. In my rig, that means that all of the 12V system connects to one point on the frame. The AC load center is also grounded at that same point. This isn't the Gospel, it's just the way I like to do it.
I was looking more at the GFPD for solar and Morningstar now makes a couple of them, they both mate logistically, with other Morningstar controllers. They basically serve as interruption similar to other GFI devices with the current differential being 300ma at interruption. Morningstar also notes that all PV devices also be grounded to earth ground. In the OP's case, he would not be making the connection from PV devices to frame ground any easier by using a dedicated GFPD.
I'm sort of old school about grounding, I don't like to connect grounds together at an intermediate junction point or multiple points, choosing to establish a direct path to the most direct point to earth. In my rig, that means that all of the 12V system connects to one point on the frame. The AC load center is also grounded at that same point. This isn't the Gospel, it's just the way I like to do it.
