This recommended practice specifies the procedure for selection of insulation levels of UHV AC transmission lines and substations. It also specifies reliability criterion under switching overvoltage and lightning overvoltage. It also suggests the calculation methods of insulation coordination design. According to the characteristics of UHV AC systems, overvoltages mitigation measures are recommended. Some examples of insulation coordination are presented.
- Standard Committee
- PE/SWG - Switchgear
- Joint Sponsors
-
PE/TR
PE/SWG
PE/SUB
- Status
- Inactive-Reserved Standard
- PAR Approval
- 2012-06-08
- Board Approval
- 2014-05-16
- History
-
- Published:
- 2014-07-18
- Inactivated Date:
- 2025-03-27
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/SWG - Switchgear
- Working Group
-
UHV-WG - DELETE - Ultra-High Voltage Working Group - DELETE
- IEEE Program Manager
- Soo Kim
Contact Soo Kim - Working Group Chair
- Weijiang Chen
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
P1862
Recommended Practice for Overvoltage and Insulation Coordination of Transmission Systems at 1 MV Alternating Current (ac) and Above
This recommended practice applies to transmission system at 1 MV ac and above. It defines standard insulation levels and specifies procedures for selecting insulation levels of ac transmission lines and substations. It also describes reliability criteria under switching and lightning overvoltages. Suggestions on insulation coordination design are described. Overvoltage mitigation measures are recommended according to the characteristics of such ac systems. Some examples of insulation coordination are also presented.
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
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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.
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