Introduction to Electrical Engineering

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..................................................................................4 Protection against residual voltages and transfer voltages...........8....................3............................. 99 11.............................................. 97 11....................................... 91 10...................... 91 11.................................... 95 11........2 Insulation resistance the electrical installation........ Standard operational procedures... Operation test equipment.................................................................. 89 10.......1 Emergency switching off. 102 13........................ 95 11............................ 97 11................................... Vocabulary ............... 96 11..............................................2.........6 Measurement the resistance protective conductors..................... Electrical test equipment..............................6...........................4..5....................................................3............................10.......................................... FIRST AID TREATMENT THE ELECTRIC SHOCK ........... OPERATION ELECTRICAL INSTALLATIONS........... 86 9....... ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT..............................................................3..... 87 10................................................................................................ 85 9....................9...................4...1 Continuity the protective conductors, including the main and supplementary equipotential bonding.................1. 86 9................................................................................................................4 Polarity test.............3.....3........ Bibliography.......3.................................................................. Test laboratories and experimental stations........................ 107 15...................... 86 9...............3 Protection separation circuits (electrical separation).... 88 10..... Maintenance procedures ........................................................................... 96 11... Preparation tests, switching operations test stations......... 93 11................................................................................7.................. 90 10......... 98 11..1........ Occupational Safety and Health Regulations ............3..................... 100 12......................................................................................7.................................................................3.......................................... Electrical work activities school laboratories ..................................... Test stations without automatic protection against direct contact .....................................................................................................3 Preventing automatic energizing ................................................................... Personnel........CONTENTS 6 9................................................................... 108 ........................... 96 11... 96 11...............3........ 95 11........................................................2 Personnel ..........................................3....... Operational status ...............................................2.... 94 11..................................... 97 11.5 Automatic disconnection supply............................. Test stations with automatic protection against direct contact ...7............................................................ Protection against electric shock.............................................2 Preventing unauthorised and unintentional switching -on ......3......3............ 104 14... 85 9........................................................ 98 11.......................................................................................................... Working procedures.... Test procedure......... 93 11...............................1 General ..............................

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