What standards govern response to transformer oil leakage incidents?

Response to transformer oil leakage is governed by environmental, safety, and electrical standards. Utilities follow environmental protection regulations for spill containment and reporting, fire safety codes for flammable liquids, and internal utility procedures. Transformer-specific guidance is provided by international standards for oil-filled equipment maintenance and environmental protection practices. Local authorities may require spill response plans, secondary containment compliance, and certified disposal of contaminated materials. Documentation and incident reporting are mandatory for regulated substations.