Let's consider for a second though. With the size savings of HV wire you now have room for a _lot_ of nice insulation that could last a long time. Arcing wou

Let's consider for a second though. With the size savings of HV wire you now have room for a _lot_ of nice insulation that could last a long time. Arcing would not be a problem if you don't do live disconnects/reconnects. Rain would not be a problem with extra insulation. If arcing does occur this could be detected and power interrupted for safety, and a faulty cable replaced.