Over deze norm
|Commissie||Energietransformatoren en meettransformatoren|
Specifies clearances in air between live parts of bushings on oil-immersed power transformers and to objects at earth potential. Clearances in air are understood to mean, in this standard, distances where the electrostatic field is free from disturbance by insulator bodies. Does not deal with the requirements of effective flashover distance or creepage distance along the bushing insulators nor does it consider the risk from intrusion of birds or animals.
|Engelse titel||Power transformers - Part 3: Insulation levels and dielectric tests. External clearances in air|