Preferred voltage ratings above 230 kV nominal for alternating-current (ac) systems and equipment are provided, along with definitions of various types of system voltages.
The procedure for selection of the withstand voltages for equipment phase-to-ground and phase-to-phase insulation systems is specified. A list of standard insulation levels, based on the voltage stress to which…
The calculation method for selection of phase-to-ground and phase-to-phase insulation withstand voltages for equipment is presented. This guide gives methods for insulation coordination of different air-insulated systems like transmission lines…
A format is presented that provides a concise and meaningful method for recording pertinent information on power circuit breaker field failures. It is recommended that this format be utilized in…
Withdrawn Standard. Withdrawn Date: Feb 06, 2006. The method and equipment involved in proper and economical installation of insulated conductors and/or conduits using the guided boring method are covered. The…
