This standard stipulates the technical conditions for transformer oil with good insulation, oxidation stability and cooling performance, which is prepared from petroleum distillate as raw material, refined and added with antioxidant. The products covered by this standard are suitable for transformers below 330kV (including 330kV) and electrical equipment with similar requirements.
GB 2536-1990 history
2011GB 2536-2011 Fluids for electrotechnical applications.Unused mineral insulating oils for transformers and switchgear