Active Standard

IEEE 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.

Sponsor Committee
PE/SUB - Substations
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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
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Sponsor Committee
PE/SUB - Substations
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Working Group
WGD1 - Recommended Electrical Clearances and Insulation Levels in Air Insulated Electrical Power Substations
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IEEE Program Manager
Patricia Roder
Contact
Working Group Chair
Charles Haahr
No Active Projects
No Active Standards

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.

Learn More

No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
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