Proposed Definitions of Terms for Reporting and Analyzing Outages of Electrical Transmission and Distribution Facilities and Interruptions

The paper presents definitions prepared by the Joint Working Group on Performance Records for Optimizing System Design of the Subcommittees on Application of Probability Methods and System Planning of the IEEE Power System Engineering Committee. The purpose of the definitions is to foster uniformity and standardization of language among engineers engaged in reporting, analyzing, and predicting outages of transmission and distribution facilities and interruptions to consumers. The definitions are not intended to be specific instructions for reporting outages and interruptions, but use of standardized language should facilitate exchanges of data between engineers.