Introduction to Electrical Engineering

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... Standard operational procedures................... 89 10...... Electrical work activities school laboratories ................................................................. 96 11.................................2 Personnel .............................................................................3........... 91 10...........................................................3................2 Preventing unauthorised and unintentional switching -on ........................... 86 9.........................................................3..... ERECTION AND OPERATION ELECTRICAL TEST EQUIPMENT................................ 87 10............... Test stations with automatic protection against direct contact ....................................................1 Emergency switching off.............. OPERATION ELECTRICAL INSTALLATIONS.. Test laboratories and experimental stations............. 104 14..4 Protection against residual voltages and transfer voltages......5........................ 86 9...... 95 11..................................................3 Preventing automatic energizing ..........................7.. 96 11.....10...... Protection against electric shock.......................... 85 9.......... 96 11........ 85 9......................1......................................3..............................................................3.............................................9...CONTENTS 6 9....3..... 98 11........... 99 11.......... Maintenance procedures ................. Operation test equipment................................................ Occupational Safety and Health Regulations ................ 88 10......3.......... 97 11................2.......................................................................................................... Electrical test equipment.......................................... 97 11............................................................................3.....................................................3.......................................................................................... 86 9............................ 94 11.1............. Preparation tests, switching operations test stations.................................... Working procedures.................. 95 11.................................................. 93 11.............. 107 15..........8.. 102 13.............................................................................. FIRST AID TREATMENT THE ELECTRIC SHOCK ................................................6 Measurement the resistance protective conductors..3......4.... Personnel................... 97 11.............. 96 11..............2 Insulation resistance the electrical installation..... Vocabulary ................................................................. 91 11........................................................ Bibliography.....6... Test procedure............ Operational status ........... 95 11............................... 90 10.......... 108 ......2................................4....................................... 100 12...................................................... Test stations without automatic protection against direct contact ...........................................................................1 General ..............................................................1 Continuity the protective conductors, including the main and supplementary equipotential bonding.........................7............................................ 93 11............................................................................................7.................5 Automatic disconnection supply.........................3 Protection separation circuits (electrical separation).......................................................................3...........................3.............................................. 98 11................................4 Polarity test....................................................................

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