I'm trying to replace the wires from the boom to connectors that go into the wiring harness and into the ground. The existing wire is 13 mm with a 2000 volt rating and the replacement my boss ordered is 8 mm, rated at 600 volts. I'm concerned that the new wire may be too small. I'm afraid of overloading it and arcing. He says it will work but I don't think so.
Something like this, I suspect: