Introduction to Electrical Engineering

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

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