Power Supply 1, Stable supplier of the State Grid 2, ... Insulated, Steel Tape Armored and PVC Sheathed flame- retardant Power CableLaid underground. Cable can bear outer mechanic force, but ... Insulated, Steel Wire Armored and PVC Sheathed flame- retardant Power CableCan be laid in vertical section, indoor, tunnels and ... and maintained easily and conveniently. copper conductor xlpe insulated power supply