Introduction to Electrical Engineering

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

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