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 (english version)
Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations; German version EN 50180-3:2015— 12 стр.