Introduction to Electrical Engineering

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

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