Introduction to Electrical Engineering

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..... FIRST AID TREATMENT THE ELECTRIC SHOCK .................4 Protection against residual voltages and transfer voltages............. Operational status ..............8...........3........ Maintenance procedures ...........3....... 99 11......................... 93 11.......3..................................................... Electrical work activities school laboratories .......................................................................................5 Automatic disconnection supply.............................................................................................................. 97 11....................2 Personnel .......................................................... Test laboratories and experimental stations...............................................................10...................3.. 96 11........ 94 11....................... 93 11........4 Polarity test......3............................1................ Standard operational procedures.............................................7....................... Electrical test equipment..................................................3............. 97 11.4..................3 Protection separation circuits (electrical separation).....................................................................................................1 General .....................................................CONTENTS 6 9............................ Test stations with automatic protection against direct contact ............................3 Preventing automatic energizing ...... 95 11...................3.........................................................................1.2.............. 97 11............................ 107 15...2 Preventing unauthorised and unintentional switching -on .................................................................. 90 10................................................. 89 10.................................................................................................. 86 9....................................................9............ 91 10.... 96 11.............5................................................... Vocabulary ..............3.............................................................................. 95 11.................................................... 108 .................2 Insulation resistance the electrical installation...... OPERATION ELECTRICAL INSTALLATIONS.7......................................................... 102 13............... 86 9.......................... 88 10..... 86 9................................. Test procedure................................................ ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT...........2..................................... 85 9....................... Bibliography.. Test stations without automatic protection against direct contact ................. 95 11.........3...........................................................7................................3...... Operation test equipment.............................. Protection against electric shock.. Working procedures....... Occupational Safety and Health Regulations .......1 Emergency switching off..........4......................................................................................... 104 14.... 96 11..6................ 100 12..................................................................................................3........ Preparation tests, switching operations test stations.................................................. Personnel.. 87 10...............3................. 98 11................. 91 11..................................................... 85 9.................1 Continuity the protective conductors, including the main and supplementary equipotential bonding.....6 Measurement the resistance protective conductors.......................................................................................................... 98 11.................. 96 11......................................

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