EN 60137 Insulated bushings for alternating voltages above 1 000 V*, 2018-08-31 Update
EN 60672-3 Ceramic and Glass-Insulating Materials Part 3: Specifications for Individual Materials
EN 62155 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000 V
DIN EN 50180:2011 history
2017DIN EN 50180-1:2017 Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 1: General requirements for bushings; German version EN 50180-1:2015
2011DIN EN 50180:2011 Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers; German version EN 50180:2010
1998DIN EN 50180:1998 Bushings above 1 kV up to 36 kV and from 250 A to 3,15 kA for liquid filled transformers; German version EN 50180:1997 + Corrigendum 1998