Donald

Environmental regulations require secondary containment systems such as oil pits, bund walls, concrete basins, or sealed liners capable of holding the full oil volume plus rainwater. Oil-water separators and drainage controls are often mandated. The goal is to prevent soil and groundwater contamination in case of leaks or catastrophic failure. Design must comply with local environmental protection rules and fire safety standards.

For high-voltage applications, transformer oil must exhibit high dielectric strength, excellent oxidation stability, low dielectric loss, and strong moisture tolerance. It should maintain consistent viscosity across temperature ranges and have a high flash and fire point for safety. Chemical stability is critical to prevent sludge formation under thermal stress. HV oils must also be compatible with paper insulation and meet strict international standards to ensure reliable long-term operation.