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 | Status: Current

1 Scope This part of IEC 61858 provides information on the identification of electrical insulating materials and auxiliary components for the assessment of modifications to an established insulation system and gives guidance on the selection of feasible test procedures.