Introduction to Electrical Engineering

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...............................................................................................9...........................................................................................3......... 94 11....................... Occupational Safety and Health Regulations ........................................................................... 97 11..................................... 86 9...1 Emergency switching off..................................................................................................................... 104 14................................................. Electrical work activities school laboratories .................. Personnel.....3...............................4 Protection against residual voltages and transfer voltages.................................................. 93 11.10.....3.... ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT....................................... Vocabulary .................................. Operation test equipment..................... 102 13............. 91 10............... Bibliography....................5 Automatic disconnection supply............................................8......3 Preventing automatic energizing .................................. 90 10...............3... 97 11........................................................CONTENTS 6 9.............. 96 11......... Operational status ........ 95 11.......................7..............................4............ Test laboratories and experimental stations..........................................................................1 Continuity the protective conductors, including the main and supplementary equipotential bonding........................ Maintenance procedures .......................................................... 85 9.1......1............................... 91 11..........................................................................2....4............2 Preventing unauthorised and unintentional switching -on ..............................................................................................................4 Polarity test............................ 100 12..................................................................... Test stations with automatic protection against direct contact ........................................................................................................................................ 98 11... 86 9..... Working procedures........2 Insulation resistance the electrical installation......3............... 85 9..................................3......................................3.....................................................................................7..............5......................... 89 10................................................................................................ 96 11...................................................3.................................................... 87 10........................... 98 11.................................. Test stations without automatic protection against direct contact ..............3.................. 95 11................. 96 11.............. Standard operational procedures..........................2............6.... OPERATION ELECTRICAL INSTALLATIONS..........7........................ Test procedure....................... 93 11.............. 95 11.. FIRST AID TREATMENT THE ELECTRIC SHOCK ...............3.............. Electrical test equipment.. 86 9..... 96 11. 108 ..3 Protection separation circuits (electrical separation).........................2 Personnel ......... Protection against electric shock.... Preparation tests, switching operations test stations.............................. 99 11.......3....................... 88 10................................ 97 11......................................................................6 Measurement the resistance protective conductors.................................................1 General .........3........... 107 15............

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