IEEE 980-2013

This guide discusses the significance of oil spillage regulations in electric supply substations; identifies the sources of oil spills; discusses typical designs and methods for dealing with oil containment and control of oil spills; and provides guidelines for preparation of a typical spill prevention control and mitigation plan. This guide applies only to non-polychlorinated biphenyl (non-PCB) insulating oil. It is not the intent of this guide to interpret governmental regulations or the applicability of the oil containment systems presented with respect to compliance to those regulations. Interpretation is left to each individual user. Containment, control and mitigation of oil spills are a concern for owners and operators of electric supply substations. The environmental impact of oil spills and their mitigation is regulated by governmental agencies, necessitating increased attention in substations to the need for secondary oil containment. Beyond the threat to the environment, mitigation costs associated with oil spills continue to escalate, and the adverse community response to any spill is becoming increasingly unacceptable. This guide identifies some governmental regulations, sources of oil spills, and typical methods and plans to contain, control and mitigate them. (Definition: "Oil" includes mineral oil and alternative insulating fluids) Revision Standard - Superseded. The significance of oil-spillage regulations and their applicability to electric supply substations are discussed; the sources of oil spills are identified; typical designs and methods for dealing with oil containment and control of oil spills are discussed; and guidelines for preparation of a typical Spill Prevention Control and Countermeasures (SPCC) plan are provided. This guide excludes polychlorinated biphenyl (PCB) handling and disposal considerations.