Introduction to Electrical Engineering

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...........................................1.........3 Main equipotential bonding ...................................... 31 5.... The Act No..............2..................1...............................1 Protection insulation live parts........................1.................... 53 6.........................3.....................2..................1 Classification electrical and electronic equipment with regard protection against electric shock the event insulation fault.....4 Protection electrical separation.........................................................................................................................................................................................1....................................1................2 Protection automatic disconnection supply..................... IEC Basic Standards ......................2............................. 15 3.................... VALID TECHNICAL RULES ........1...5 Use protective measures............. 4 1...2. 57 .................2 Protection barriers enclosures ...................................... .........2... 42 5.1 Elements the Code and their meaning ..... 7 1..2........ 7 1............... FUNDAMENTAL RULES FOR PROTECTION AGAINST ELECTRIC SHOCK . 43 5................ 17 4........................ 45 5................ Protection against both direct and indirect contact..........................2........... Conventional touch voltage limit.....CONTENTS 4 CONTENTS PREFACE .........................................2.......................... 41 5.................................................. 37 5............................................................. 13 2..........1......................................1........................1 Types system earthing... 12 2.2........................................................... 34 5.......2................... 22/1997 (Technical Requirements for Products) .. 27 5............ 26 4............... EFFECTS CURRENT PASSING THROUGH THE HUMAN BODY................2.1...1 Requirements for characteristics protective devices.....................2............... 26 4................................................................. 3 CONTENTS ...........................2.............................2.... Principles ................. Protection against indirect contact.......2 Examples designations with the Code..................................................... 32 5.......................4 Supplementary equipotential bonding. 43 5........... 45 5. 49 6.............. 11 2.................2.......................................... 21 4.................1....................5 Protective measures system ..... Rules for installation electrical equipment (apparatus and appliances)........2.....................................................................1..............................7 Protective measures systems .... Notice No..................................................................................................................................................................... 21 4.............2..........2...1........... 47 5....... 31 5......... 32 5.................................................................................. Degrees protection provided enclosures (IP Code) .................. 37 5...... CONSTRUCTION ELECTRICAL INSTALLATION AND EQUIPMENT .................4.....2.... 51 6............... 12 2.........................................2............ 30 5...............3...............................1........................................................................3................3 Protection use Class equipment equivalent insulation ...............6 Additional protection................................................................................................................. 47 5............... Notice No...............................3......................................................3 Protection obstacles..........................................................................................1.......................6 Protective measures systems ........................2.................................................................. 29 5........... BASIC ELECTROTECHNICAL STANDARDS............... 26 4........2 Measures for protection automatic disconnection supply.................................. 36 5....................... BASIC TERMS AND DEFINITIONS FOR ELECTRICAL SAFETY AND ELECTRICAL INSTALLATIONS............... 50/1978 (qualification persons) ....................... 33 5.... Protection against direct contact................. Resistance (impedance) the human body .....................................................................2.4 Protection placing live parts out reach ................ Safety limits current passing through the human body..... 31 5....... General................................. 73/2010 (important electrical equipment) .............................................. 10 1..............................................................2................................... 51 6................ International and European standardization................................................................................ 56 6...........................

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