Pre installed conductors within an overall protective metallic interlocked armor. 45 percent lighter than steel MC cable. Cable reverse wound for ease of pulling and installation. Conductors solid bare annealed copper per ASTM B-3, stranded copper stranding per ASTM B-8 for conductor. Conductor insulation rated 90 degree Celsius dry, 75 degree Celsius wet at 600 volt. Conductor insulation is flame retardant, heat resistant PVC with flame, oil and gasoline resistant nylon jacket.