Scope This document specifies the test method for determining the resis ance and trackability indices of solid insulating materials on samples taken from parts of equipment and plates of material using a te
NF C26-220*NF EN IEC 60112:2020 history
2020NF C26-220*NF EN IEC 60112:2020 Method for the determination of the proof and the comparative tracking indices of solid insulating materials