From the energy balance in a conductor carrying electric current, its temperature depends on the thermal energy (incoming from resistive losses and solar radiation) and the capacity to dissipate this
energy. This can be done in two ways: by convection and by radiation. Unfortunately bare aluminium conductor have a poor emissivity coefficient, that limit the energy dissipation by radiation and increase the conductor temperature and consequently the resistivity.
De Angeli Prodotti has developed innovative solutions to improve the characteristics of conductor for overhead lines.