What are the IS 335 specifications for transformer oil?

IS 335 specifies the requirements for transformer oil used in electrical transformers, focusing on its physical and chemical properties to ensure optimal performance and safety. Key parameters include viscosity, flash point, pour point, acidity, and dielectric strength. The standard also outlines testing methods to assess these properties, ensuring the oil provides adequate insulation and cooling, while minimizing the risk of fire and environmental impact. Compliance with IS 335 is essential for reliable transformer operation.