How is transformer oil spill containment designed?

Spill containment is designed to capture and isolate leaked oil while preventing migration into soil, drains, or water bodies. Designs use curbing, bunds, lined pits, sumps, and drain valves routed to oil water separators. Capacity is set by transformer oil volume and risk criteria. The layout also considers fire response access, rainfall management, and safe maintenance. Periodic inspection ensures integrity of liners and valves.