Introduction to Electrical Engineering

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....................................................... 32 5............................2.2....... 3 CONTENTS ...................... 43 5.2............................1.............3................. 21 4.. Protection against both direct and indirect contact.2.. 45 5.......................2.. FUNDAMENTAL RULES FOR PROTECTION AGAINST ELECTRIC SHOCK .....................1............................... 26 4....................... 21 4.....................3 Main equipotential bonding ..................1.........2...................................................2 Protection automatic disconnection supply..................1.........2............................................................... The Act No...................... BASIC TERMS AND DEFINITIONS FOR ELECTRICAL SAFETY AND ELECTRICAL INSTALLATIONS...............................1 Types system earthing.............1 Requirements for characteristics protective devices.................. 49 6.................. VALID TECHNICAL RULES ......... 13 2... 22/1997 (Technical Requirements for Products) ................................................... 37 5........................... BASIC ELECTROTECHNICAL STANDARDS....................................................................... 31 5........................................................................................ 10 1...........................1.1.............. 12 2... 53 6......2..........1............................................. Notice No..............................2.................................................................... 11 2..........2 Examples designations with the Code................. 12 2.....................................2.... 57 ...... 37 5................................ 29 5..........3.................................2................................... Notice No........................................................................................6 Protective measures systems ...........................3 Protection obstacles............. Protection against direct contact............. 47 5............... EFFECTS CURRENT PASSING THROUGH THE HUMAN BODY.....................3...................... 50/1978 (qualification persons) ......................................2 Measures for protection automatic disconnection supply.................2........................................................................ 17 4...........................1............CONTENTS 4 CONTENTS PREFACE ................ 31 5....... 41 5..................................................4 Supplementary equipotential bonding...............................1............................ Principles .................. 4 1.........1.......................................... Resistance (impedance) the human body ...................3................................................2............................................................................................. Protection against indirect contact.......5 Use protective measures....................... Conventional touch voltage limit...2.............................4 Protection electrical separation........................................ 30 5.......................... Degrees protection provided enclosures (IP Code) .........5 Protective measures system ................................4....... 56 6....................................................... 73/2010 (important electrical equipment) .......... International and European standardization................................. 7 1..............2.1 Protection insulation live parts............1................................................6 Additional protection..... General........................................... 26 4.....................2...........2 Protection barriers enclosures .............................. Safety limits current passing through the human body........ 42 5........................................ 31 5...... 36 5..............................................................................................1 Elements the Code and their meaning .....2...... 43 5.................................... 7 1.............2...............1....1..... 45 5.............. 51 6......................... 15 3......... 51 6.................................................................2....................................................... 34 5...3 Protection use Class equipment equivalent insulation ...............1......................2................................2...................................2...................................... 27 5........................................ Rules for installation electrical equipment (apparatus and appliances)... 26 4....................... CONSTRUCTION ELECTRICAL INSTALLATION AND EQUIPMENT ......................... ................ IEC Basic Standards .........................................7 Protective measures systems .... 32 5.........4 Protection placing live parts out reach .................................................. 33 5...................................1 Classification electrical and electronic equipment with regard protection against electric shock the event insulation fault..............2.................. 47 5.............................

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