The incremental application of unearthed electrical supply systems (IT systems), requires a careful selection of suitable protective measures, e.g. insulation monitoring devices (IMDs). The combination of IT systems with insulation monitoring is an innovative protective technique, with the great advantages of more efficient operational safety and reliability, better fire protection, accident prevention and more. The book gives a detailed description of the unearthed IT system and its application fields, in industry, mining, railway, marine/oil and in electric vehicles. The various measuring techniques involving insulation monitoring devices are discussed, with an in-depth description of the respective international standards series IEC 60364 "Low-voltage electrical installations – Part 1: Fundamental principles, assessment of general characteristics, definitions"; Part 4-41: "Protection for safety – Protection against electric shock"; Part 6: "Verification" and, IEC 60479 "Effects of current on human beings and livestock – Part 1: General aspects", amongst others.
Wolfgang Hofheinz, graduate engineer, was born in Wissenbach, Germany. He studied electrical engineering at the University in Giessen, Germany. Since 1975 he is employed by the Bender GmbH & Co. KG in Gruenberg, Germany, becoming the company’s Vice-President in 1995. He is honorary expert of various National committees of the DKE (Deutsche Kommission Elektrotechnik Elektronik Informationstechnik) and international electrotechnical standard committees (IEC, NFPA, ASTM). In 2006 he received the "1906 IEC-Award". He has published various expert articles and books on the subject of electrical safety. Some of his books have been translated into English, French, Spanish, Turkish and Hungarian.