Under the leadership of Danish Technological Institute, Dept. of Energy Technology the initiative was taken in 1991 to coordinate a project to explain and produce documented material for the interpretation of thermograms and to develop practical guidelines for thermographic inspection in electrical plants. Representatives include insurance companies, electricity utility companies, thermography contractors, industrial companies, and suppliers of electrical components and materials from 20 different firms. The project report describes the causes for thermally related defects in electric plants, statistical adaption of already detected defects, defect sources of electric thermography and practical tests charting excess temperature as a function of the current at different typical defects. The guidelines describe how a thermographic examination of larger electrical plants should be carried out in practice. This includes the agreement between customer and thermography contractor, report elaboration, and how different defects are interpreted. This paper describes the project's main contents and its expected effect on industry and insurance companies.
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