Over deze norm
|Commissie||Vloeistoffen voor elektrotechnische doeleinden|
Specifies a method which uses the change of electrical and/or chemical characteristics of transformer askarel to eliminate materials with contaminatingeffect on the askarel. This method also utilizes various physical tests on the electrical insulation and construction materials after controlled exposure to the askarel to eliminate not suitable materials. Suitably dimensioned specimens are immersed in askarel in tightly closed containers for 168 h at 100 degrees centigrade. Changes in properties of the askarel are compared against a control sample of askarel treated in the same manner, but in absence of test specimens. Physical properties of the materials are determined before and after exposure to the askarel.
|Engelse titel||Askarels for transformers and capacitors - Part 5: Screening test for compatibility of materials and transformer askarels|