Introduction & Background
Electric utilities frequently store large quantities of oil. This is primarily due to the utilities’ extensive use of oil-filled power distribution equipment, which includes transformers, voltage regulators, circuit breakers and autoreclosers. The oil contained in these devices is designed to both cool and insulate the electrical conductor. Typically, these devices are located at substations, which are usually unmanned.
Statement of Problem
Though electric power substations may fall under the SPCC rule, it may be impractical to provide secondary containment.
Strategy & Solution
The electric utility must first determine if the facility is regulated under the SPCC rule. Facilities are considered regulated if they store 1,320 gallons or more of oil in containers 55 gallons or larger.
Understanding the SPCC rule and how it applies to substations is key to ensuring electrical utilities comply with regulatory requirements. An effective strategy requires that the electrical utility understand the regulations, the amount of oil stored, and what cost-effective options exist.