I'm putting together a temporary power panel (on a hand truck for portability) to provide electicity while I build my house. The service entrance will eventually be underground. I will hook my cable up to the box on the temporary power pole, but I fear that my 100 foot cable will disappear in the night. I need a way to plug and unplug my power. Are there plugs and sockets for 4-4-4-6 cable? The ones I see seem to have 2 connections and possibly ground.