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.
- Sponsor Committee
- PE/SUB - Substations
Learn More - Status
- Superseded Standard
- PAR Approval
- 1995-06-14
- Superseded by
- 1427-2020
- Board Approval
- 2006-12-06
- History
-
- ANSI Approved:
- 2007-04-26
- Published:
- 2007-05-04
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/SUB - Substations
Learn More - Working Group
-
WGD1 - Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
Learn More - IEEE Program Manager
- Patricia Roder
Contact - Working Group Chair
- Charles Haahr
No Active Projects
1427-2020
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, 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.
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards