http://wesbellwireandcable.com/ - Welding Cable - Single Conductor Power Cable This page offers flexible copper welding cable which is a rubber insulated cable used to hook up welders in shops and garages. Industrial grade welding cable has UL, CSA and MSHA approvals and a more rugged jacket to handle more impact each day. See Super Vu-Tron for more information >> Our welding cables are made with 30 awg copper strands for added flexibility. Common awg sizes are 6, 4, 2, 1, 1/0, 2/0, 3/0 and 4/0. Welding cable is a portable power cable commonly used for power supply applications and secondary voltage resistance welding leads.