Originally Posted by tomd
Easy suggestions for earthing the A Frame?
Better to have dedicated pos and neg wires to the lights, back to either your distribution panel/fuse board and a dedicated ground buss.
a) If you have problems down the road, troubleshooting will be much easier than trying to figure out where you're losing the conductivity through mechanical connections.
b) With large structural parts in an electrical circuit, you need to be really careful about electrolysis eating metal bits from your boat (granted, though, the arch shouldn't be in the water.)