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 addresses how reduced clearances in high-voltage ac substations will allow for compact bus arrangements and substation voltage uprating applications.
- Standard Committee
- PE/SUB - Substations
- Status
- Active Standard
- PAR Approval
- 2015-09-03
- Superseding
- 1427-2006
- Board Approval
- 2020-12-03
- History
-
- Published:
- 2021-03-19
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/SUB - Substations
- Working Group
-
WGD1 - Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
Learn More About WGD1 - Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations - IEEE Program Manager
- Patricia Roder
Contact Patricia Roder - Working Group Chair
- Chunming Ma
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
No Active Standards
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
1427-2006
IEEE Guide for Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
This guide, covering three-phase ac systems from 1 kV to 800 kV, provides recommended electrical operating and 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 addresses how reduced clearances in high-voltage ac substations will allow for compact bus arrangements and substation voltage uprating applications.
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
No Inactive-Reserved Standards