Introduction to Electrical Engineering

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....................3...........7.................................................................. 88 10............................. 94 11.............3................................ 85 9............................................. Operation test equipment.............................................. Electrical work activities school laboratories ............ 87 10..........................1......... 91 10............. Test stations without automatic protection against direct contact .........4.............................................. 97 11............ 102 13......................................................................... 86 9....... Occupational Safety and Health Regulations ...8........3....................3.................................................2............... 96 11................1 Emergency switching off............... ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT.................................................. 93 11..................................................6 Measurement the resistance protective conductors......................2 Personnel ................ Test laboratories and experimental stations............................................3.........................................................................................3 Protection separation circuits (electrical separation)........................ 95 11.......... Personnel........................................................ Working procedures....... 89 10... 100 12............................................................. 96 11...................... 85 9.......................... 97 11................................................. Test stations with automatic protection against direct contact ..... 98 11................... Standard operational procedures...... 104 14..................................................1..................... Operational status ................................................................................................. 95 11.......... Test procedure....... 108 ...........1 General ....................................................1 Continuity the protective conductors, including the main and supplementary equipotential bonding............................................................ Preparation tests, switching operations test stations..... Vocabulary ............................. 96 11....... 90 10..................................... Maintenance procedures ............................................................................ Bibliography....3....................3...................7.................6..................3.......................................................................4 Protection against residual voltages and transfer voltages...................................................4 Polarity test..........................................................................5 Automatic disconnection supply........................... 99 11................... 107 15.................................................. 86 9............................3.............. 91 11........................ 95 11.................................................3..........................3 Preventing automatic energizing ..........................3. FIRST AID TREATMENT THE ELECTRIC SHOCK ....4...5......2 Preventing unauthorised and unintentional switching -on ...................................... Protection against electric shock.......................................CONTENTS 6 9.3.............................7.................................. 98 11............... 93 11............. 96 11..........................................................................................................................................................................................2.........10........... OPERATION ELECTRICAL INSTALLATIONS........... Electrical test equipment..........................2 Insulation resistance the electrical installation..................... 97 11...9.................... 86 9....

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