PD IEC/TR 61857-2:2015 PDF

What is PD IEC/TR 61857-2 – Electrical insulation systems about?

PD IEC/TR 61857-2 is the second part of the IEC 61857 multi-series that discusses thermal evaluation procedures for electrical insulation systems. PD IEC/TR 61857-2 gives guidelines to identify the appropriate test method to be used for the evaluation of a proposed Electrical Insulation System (EIS). Some of the standards are for evaluation and classification of the EIS, while other standards identify the appropriate method to evaluate single or multi-factor stresses of a proposed or of an established EIS. PD IEC/TR 61857-2 is applicable to existing or proposed EIS used in electrotechnical products across a wide range of operating voltages of IEC Standards. The report takes care to select the appropriate standard based on construction and intended operating conditions.