What is the IEC 296 transformer oil specification?

The IEC 296 transformer oil specification outlines the requirements for mineral insulating oils used in power transformers. This standard defines various properties such as chemical composition, physical characteristics, and performance criteria, including dielectric strength, viscosity, and water content. Compliance with IEC 296 ensures that transformer oil provides adequate insulation and cooling, thereby enhancing the operational reliability and safety of power transformers in electrical systems.