IEEE P1427/D5.1, August 2020 IEEE Approved Draft Guide for Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
Institute of Electrical and Electronics Engineers (IEEE)
Scope
This guide, covering three-phase ac systems from 1 kV to 800 kV, provides recommended electrical operating, safety clearances, and insulation levels in air-insulated electric supply substations; addresses insulation coordination procedures; provides design procedures for the selection and coordination of the insulation levels within the station as they relate to substation clearances; and addresse...