IEC 60114:1959 pdf download,Recommendation for heat-treated aluminium alloy busbar material of the aluminium-magnesium-silicon type.
IEC 60114:1959 is a technical IEC recommendation that specifies performance requirements for heat-treated aluminium alloy busbar material of the aluminium–magnesium–silicon (Al–Mg–Si) type. It defines key electrical and mechanical properties that busbar material should meet so that it is suitable and consistent for use in power distribution equipment. In particular, it sets limits for volume resistivity (measured and corrected at a reference temperature, with specified uncertainty handling), and it also specifies mechanical strength characteristics such as tensile strength and 0.2% proof stress. Additionally, it includes a requirement for ductility, expressed as elongation after fracture. The standard also provides reference physical properties at 20 °C (such as density and relevant temperature coefficients) to support calculations and design use. Overall, it helps standardize material interchangeability and engineering reliability for aluminium busbars.