Black Series fire hazard
I'm an RV service technician, I won't say where because I'm making these posts on my own and am not representing them in anyway. I've discovered a very serious electrical issue in quite a few Black...
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To clarify what you may have seen, here is a look at a modern 30A 120V combo 120V/12V distribution panel with built in converter.
Click For Full-Size Image.
The right side is the 120V section, there are six square openings, those are for Romex wire. You push the Romex through and the plastic tabs act like clamps to prevent the Romex from being pulled out. Since the box is plastic, there is no need for anything to buffer the wire, it can't short to plastic and the tabs act as clamps.
You will also notice there are two completely separate ground and neutral bus bars, they are electrically isolated from each other and since the box is plastic they can't conduct through the plastic box.
Click For Full-Size Image.
The back side of the box the 120V side is on the left and you can see the 6 square holes for the Romex.
You can also see a bunch of red and black wires in the middle, those are 12V from the fuse panel. 12V since it is classified as low voltage the connections do not need to be made in electrical boxes and connections are made with wire nuts or crimps outside of the box.
The only cable that would need a clamp installed is the shore cord and the only reason is to prevent the shore cord from being pulled out.
Click For Full-Size Image.The right side is the 120V section, there are six square openings, those are for Romex wire. You push the Romex through and the plastic tabs act like clamps to prevent the Romex from being pulled out. Since the box is plastic, there is no need for anything to buffer the wire, it can't short to plastic and the tabs act as clamps.
You will also notice there are two completely separate ground and neutral bus bars, they are electrically isolated from each other and since the box is plastic they can't conduct through the plastic box.
Click For Full-Size Image.The back side of the box the 120V side is on the left and you can see the 6 square holes for the Romex.
You can also see a bunch of red and black wires in the middle, those are 12V from the fuse panel. 12V since it is classified as low voltage the connections do not need to be made in electrical boxes and connections are made with wire nuts or crimps outside of the box.
The only cable that would need a clamp installed is the shore cord and the only reason is to prevent the shore cord from being pulled out.
