Sets out minimum clearances in air between live parts of bushings on oil-immersed power transformers and objects at earth potential. The text has been reproduced from IEC 76-3-1:1987 and the tabulated minimum clearances have been modified.
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Power transformers, Part 3.1: Insulation levels and dielectric test – External clearances in air
Standards Australia , 09/14/1992
Pages: 12