Bare Overhead Conductors: Alloyed and unalloyed Al overhead conductors: up to cross-sections of 16-500 mm2. Steel strands with 25-240 mm2 cross-sections. Al conductors steel reinforced (ACSR) with cross-sections of 16/2,5 - 550/70 mm2. Covered Overhead Conductors: Single layer insulated aerial wires with a diameter of 10-240 mm2 – insulated with PVC or non polluting XLPE – and AXKA and NFA2x bunched aerial cables. Copper and Bronze products: Copper contact wires have been used as conductors for driving electric vehicles like full- and narrow gauge railway trains, street railways, tramways and trolley buses. Copper overhead line conductors are used for building of electrical overhead line, for earth electrode. It can also be used for stay wire ropes, circuit breaker and for the forming of the by –pass and the main cable. Bronze power conductors are usually used for power overhead conducting, where the wire also has a holding part. ISO 9001, ISO 14001, OHSAS 18001