IEC_60204-1_ed._5.1.pdf

IEC 60204-1Edition 5.1 2009-02INTERNATIONAL STANDARD NORME INTERNATIONALESafety of machinery Electrical equipment of machines Part 1:General requirements Scurit des machines Equipement lectrique des machines Partie 1:Rgles gnrales INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CRICS 29.020 PRICE CODECODE PRIXISBN 978-2-88910-069-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale This is a preview-click here to buy the full publication 2 60204-1 IEC:2005+A1:2008 CONTENTS FOREWORD.6 INTRODUCTION.9 1 Scope.11 2 Normative references.12 3 Definitions.14 4 General requirements.21 4.1 General considerations.21 4.2 Selection of equipment.22 4.3 Electrical supply.23 4.4 Physical environment and operating conditions.24 4.5 Transportation and storage.26 4.6 Provisions for handling.26 4.7 Installation.26 5 Incoming supply conductor terminations and devices for disconnecting and switching off.26 5.1 Incoming supply conductor terminations.26 5.2 Terminal for connection to the external protective earthing system.27 5.3 Supply disconnecting(isolating)device.27 5.4 Devices for switching off for prevention of unexpected start-up.30 5.5 Devices for disconnecting electrical equipment.30 5.6 Protection against unauthorized,inadvertent and/or mistaken connection.31 6 Protection against electric shock.31 6.1 General.31 6.2 Protection against direct contact.31 6.3 Protection against indirect contact.34 6.4 Protection by the use of PELV.35 7 Protection of equipment.36 7.1 General.36 7.2 Overcurrent protection.36 7.3 Protection of motors against overheating.39 7.4 Abnormal temperature protection.40 7.5 Protection against supply interruption or voltage reduction and subsequent restoration.40 7.6 Motor overspeed protection.41 7.7 Earth fault/residual current protection.41 7.8 Phase sequence protection.41 7.9 Protection against overvoltages due to lightning and to switching surges.41 8 Equipotential bonding.41 8.1 General.41 8.2 Protective bonding circuit.44 8.3 Functional bonding.47 8.4 Measures to limit the effects of high leakage current.47 This is a preview-click here to buy the full publication60204-1 IEC:2005+A1:2008 3 9 Control circuits and control functions.47 9.1 Control circuits.47 9.2 Control functions.48 9.3 Protective interlocks.53 9.4 Control functions in the event of failure.54 10 Operator interface and machine-mounted control devices.58 10.1 General.58 10.2 Push-buttons.59 10.3 Indicator lights and displays.61 10.4 Illuminated push-buttons.62 10.5 Rotary control devices.62 10.6 Start devices.62 10.7 Emergency stop devices.62 10.8 Emergency switching off devices.63 10.9 Enabling control device.64 11 Controlgear:location,mounting,and enclosures.64 11.1 General requirements.64 11.2 Location and mounting.64 11.3 Degrees of protection.66 11.4 Enclosures,doors and openings.66 11.5 Access to controlgear.67 12 Conductors and cables.68 12.1 General requirements.68 12.2 Conductors.68 12.3 Insulation.69 12.4 Current-carrying capacity in normal service.69 12.5 Conductor and cable voltage drop.70 12.6 Flexible cables.71 12.7 Conductor wires,conductor bars and slip-ring assemblies.72 13 Wiring practices.74 13.1 Connections and routing.74 13.2 Identification of conductors.75 13.3 Wiring inside enclosures.77 13.4 Wiring outside enclosures.77 13.5 Ducts,connection boxes and other boxes.80 14 Electric motors and associated equipment.82 14.1 General requirements.82 14.2 Motor enclosures.83 14.3 Motor dimensions.83 14.4 Motor mounting and compartments.83 14.5 Criteria for motor selection.83 14.6 Protective devices for mechanical brakes.84 15 Accessories and lighting.84 15.1 Accessories.84 15.2 Local lighting of the machine and equipment.84 This is a preview-click here to buy the full publication 4 60204-1 IEC:2005+A1:2008 16 Marking,warning signs and reference designations.85 16.1 General.85 16.2 Warning signs.86 16.3 Functional identification.86 16.4 Marking of equipment.86 16.5 Reference designations.87 17 Technical documentation.87 17.1 General.87 17.2 Information to be provided.87 17.3 Requirements applicable to all documentation.88 17.4 Installation documents.88 17.5 Overview diagrams and function diagrams.89 17.6 Circuit diagrams.89 17.7 Operating manual.90 17.8 Maintenance manual.90 17.9 Parts list.90 18 Verification.90 18.1 General.90 18.2 Verification of conditions for protection by automatic disconnection of supply.91 18.3 Insulation resistance tests.94 18.4 Voltage tests.95 18.5 Protection against residual voltages.95 18.6 Functional tests.95 18.7 Retesting.95 Annex A(normative)Protection against indirect contact in TN-systems.96 Annex B(informative)Enquiry form for the electrical equipment of machines.100 Annex C(informative)Examples of machines covered by this part of IEC 60204.104 Annex D(informative)Current-carrying capacity and overcurrent protection of conductors and cables in the electrical equipment o