Standard for Insulation Coordination - Definitions, Principles, and Rules
|Publication Date:||18 July 1996|
This standard applies to three-phase ac systems above 1 kV. It specifies the procedure for selection of the withstand voltages for equipment phase-to-ground and phase-to-phase insulation systems. It also identifies a list of standard insulation levels, based on the voltage stress to which the equipment is being exposed.