BS PD IEC TR 61858-3:2020 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS). Clarification of electrical insulating materials (EIMs) and auxiliary materials
2020BS PD IEC TR 61858-3:2020 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS). Clarification of electrical insulating materials (EIMs) and auxiliary materials