Sagot :
Overhead power "wire". The conductor consists of 7 strands of steel (centre, high tensile strength), surrounded by 4 outer layers of aluminium (high conductivity). Sample diameter 40 mm.
Overhead power "wire". The conductor consists of 7 strands of steel (centre, high tensile strength), surrounded by 4 outer layers of aluminium (high conductivity). Sample diameter 40 mm.