Bi- Metallic connectors are used for joining aluminium & copper circular conductors. They are particularly useful, when copper is used as earthing in aluminium lightning protection systems.
8mm Dia, Al conductor to 8mm Dia, Cu conductor.
ABI - 8
8mm Dia, Al conductor to 25 x 3 Cu tape,
20 x 3 Al tape to 20 x 3 Cu tape,
ABI - 203
25 x 3 Al tape to 25 x 3 Cu tape,
ABI - 253
Joining method friction welding,welding area more than nominal conductor area.
Aluminium barrel are chemically treated to reduce contact resistance and corrosion and are filled electrically conductive corrosion inhabitant with a jointing compound and capped.