Introduction to Electrical Engineering

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............... Vocabulary ............................................................................................................. 100 12............................................................................. Maintenance procedures .....................................1 General ...............4 Protection against residual voltages and transfer voltages................3..................................... Operational status ...................... Test stations with automatic protection against direct contact ....................................... 90 10...CONTENTS 6 9............... 96 11......................... 104 14.................. 102 13............................ OPERATION ELECTRICAL INSTALLATIONS......... 91 11................... Protection against electric shock..............................................................................................................7........10............ Bibliography......3 Protection separation circuits (electrical separation)....... Electrical test equipment............................................................................ 108 ...5 Automatic disconnection supply....7...3..5.. Preparation tests, switching operations test stations........................... 97 11. Operation test equipment....6 Measurement the resistance protective conductors.............................. Personnel..............8.........3....................................................9........1...... Standard operational procedures......................... 94 11....................................... 87 10.................. 98 11......................... FIRST AID TREATMENT THE ELECTRIC SHOCK ..............3..... 88 10........................................................4.................................................................. 96 11..................... Test laboratories and experimental stations.......... 99 11...................3................................................................................................................................................................1.........................2....................................................................................................... 89 10.. 93 11......1 Continuity the protective conductors, including the main and supplementary equipotential bonding........................................... 98 11........... 93 11..................... Working procedures..........................3............. Test procedure...........................6.3........1 Emergency switching off......4................................................................................... 107 15............. 97 11............................................................... Electrical work activities school laboratories ........................... 86 9........................................................................ 85 9................ 91 10........... 96 11........... 96 11............................................................................2..................4 Polarity test......................................... Occupational Safety and Health Regulations ............................. 95 11.................................2 Personnel ...................................3................... 95 11......................................................3...............3. 86 9.............................................3.........................2 Insulation resistance the electrical installation.. ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT.................................................. 97 11...3 Preventing automatic energizing ...............7...............3.2 Preventing unauthorised and unintentional switching -on ........................................................................................ 86 9............. 95 11......... 85 9........................................................... Test stations without automatic protection against direct contact ...................................................................

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