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Tham khảo sách 'electrical installation handbook volume 2', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Electrical installation handbook Volume 2 3rd edition Electrical devices 1SDC010001D0203 ABB SACE Electrical installation handbook Volume 2 Electrical devices 3nd edition June 2005 First edition 2003 Second edition 2004 Third edition 2005 Published by ABB SACE via Baioni 35 -24123 Bergamo Italy All rights reserved Index Introduction.2 1 Standards 1.1 General aspects.3 1.2 IEC Standards for electrical installation.15 2 Protection of feeders 2.1 Introduction.22 2.2 Installation and dimensioning of cables.25 2.2.1 Current carrying capacity and methods of installation.25 Installation not buried in the ground.31 Installation in ground.44 2.2.2 Voltage drop. .56 2.2.3 Joule-effect losses.66 2.3 Protection against overload.67 2.4 Protection against short-circuit.70 2.5 Neutral and protective conductors .78 2.6 Busbar trunking systems.86 3 Protection of electrical equipment 3.1 Protection and switching of lighting circuits.101 3.2 Protection and switching of generators.110 3.3 Protection and switching of motors.115 3.4 Protection and switching of transformers.135 4 Power factor correction 4.1 General aspects.150 4.2 Power factor correction method.156 4.3 Circuit-breakers for the protection and switching of capacitor banks.163 5 Protection of human beings 5.1 General aspects effects of current on human beings.166 5.2 Distribution systems.169 5.3 Protection against both direct and indirect contact.172 5.4 TTsystem. .175 5.5 TN system.178 5.6 IT system.181 5.7 Residual current devices.183 5.8 Maximum protected length for the protection of human beings.186 6 Calculation of short-circuit current 6 J General aspects.204 6.2 Fault typologies.204 6.3 Determination of the short-circuit current short-circuit power method .206 6.3.1 Calculation of the short-circuit current.206 6.3.2 Calculation of the short-circuit power at the fault point.209 6.3.3 Calculation of the short-circuit current.210 6.3.4 Examples.212 6.4 Determination of the short-circuit current Ik downstream of a cable
