Introduction to Electrical Engineering

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...............................................................................................................9....... 96 11...................................................................................................... Operational status .. 104 14..................................................................... 97 11..2..................... 97 11....................................................................................................... Preparation tests, switching operations test stations.........3.............................. 107 15....................... 96 11........................ 86 9........2 Personnel .............................................1 Continuity the protective conductors, including the main and supplementary equipotential bonding....................................................10..................3..............................2 Preventing unauthorised and unintentional switching -on .................................................... Occupational Safety and Health Regulations ..... 96 11.....................4 Polarity test........................................................................3.3..................1 General ................................................................................................................ 93 11..3 Protection separation circuits (electrical separation)............... Test stations without automatic protection against direct contact ...........................................................3.............. 90 10..................................... 87 10....................................6....................... Vocabulary ............... Electrical work activities school laboratories ...........4........6 Measurement the resistance protective conductors........................................ 86 9. 98 11............3.... 95 11....CONTENTS 6 9...........................5...... Personnel.................. 86 9............................ 98 11.. 96 11..................7........... Test laboratories and experimental stations........................3 Preventing automatic energizing ............................................................1...... 85 9...............................................................1 Emergency switching off............. Maintenance procedures ........ Protection against electric shock............................... 94 11................... Test stations with automatic protection against direct contact ..... 108 ...............................3...................... 95 11...................4.................... Bibliography................. 95 11.........................................................1.......................................................7.............. 91 11.......... 97 11....... FIRST AID TREATMENT THE ELECTRIC SHOCK .............................. Test procedure.. 89 10...........................................3....2.........................7......................... Operation test equipment.................... Standard operational procedures................ 102 13.......................................................................................................................................3.................................. 93 11.................... 99 11.................................................................. 88 10........................... 100 12.. 85 9.......................................................................................... OPERATION ELECTRICAL INSTALLATIONS.........................3.............8..........................................................................................................3................................4 Protection against residual voltages and transfer voltages.2 Insulation resistance the electrical installation........... Electrical test equipment.......................3.........5 Automatic disconnection supply................... 91 10. ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT....... Working procedures................................

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