IEC 60204-32:2008

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
   4.1 General considerations
   4.2 Selection of equipment
   4.3 Electrical supply
   4.4 Physical environment and operating conditions
   4.5 Transportation and storage
   4.6 Provisions for handling
   4.7 Installation
5 Incoming supply conductor terminations and devices for
   disconnecting and switching off
   5.1 Incoming supply conductor terminations
   5.2 Terminal for connection to the external protective
        earthing system
   5.3 Supply disconnecting and switching devices
   5.4 Devices for switching off for prevention of unexpected
        start-up
   5.5 Devices for disconnecting electrical equipment
   5.6 Protection against unauthorized, inadvertent and/or
        mistaken connection
6 Protection against electric shock
   6.1 General
   6.2 Protection against direct contact
   6.3 Protection against indirect contact
   6.4 Protection by the use of PELV
7 Protection of equipment
   7.1 General
   7.2 Overcurrent protection
   7.3 Protection of motors against overheating
   7.4 Abnormal temperature protection
   7.5 Protection against supply interruption or voltage
        reduction and subsequent restoration
   7.6 Motor overspeed protection
   7.7 Earth fault/residual current protection
   7.8 Phase-sequence protection
   7.9 Protection against switching surges and lightning
8 Equipotential bonding
   8.1 General
   8.2 Protective bonding circuit
   8.3 Functional bonding
   8.4 Measures to limit the effects of high leakage current
9 Control circuits and control functions
   9.1 Control circuits
   9.2 Control functions
   9.3 Protective interlocks
   9.4 Control functions in the event of failure
10 Operator interface and hoisting machine mounted control
   devices
   10.1 General
   10.2 Push-buttons
   10.3 Indicator lights and displays
   10.4 Illuminated push-buttons
   10.5 Rotary control devices
   10.6 Start devices
   10.7 Emergency stop devices
   10.8 Emergency switching-off devices
   10.9 Enabling control device
11 Controlgear: location, mounting, and enclosures
   11.1 General requirements
   11.2 Location and mounting
   11.3 Degrees of protection
   11.4 Enclosures, doors and openings
   11.5 Access to switchgear and to controlgear
12 Conductors and cables
   12.1 General requirements
   12.2 Conductors
   12.3 Insulation
   12.4 Current-carrying capacity in normal service
   12.5 Voltage drop
   12.6 Flexible cables
   12.7 Conductor wires, conductor bars and slip-ring
        assemblies
13 Wiring practices
   13.1 Connections and routing
   13.2 Identification of conductors
   13.3 Wiring inside enclosures
   13.4 Wiring outside enclosures
   13.5 Ducts, connection boxes and other boxes
14 Electric motors and associated equipment
   14.1 General requirements
   14.2 Motor enclosures
   14.3 Motor dimensions
   14.4 Motor mounting and compartments
   14.5 Criteria for motor selection
   14.6 Protective devices for mechanical brakes
   14.7 Electrically operated mechanical brakes
15 Accessories and lighting
   15.1 Accessories
   15.2 Local lighting on the hoisting machine and for
        the equipment
16 Marking, warning signs and reference designations
   16.1 General
   16.2 Warning signs
   16.3 Functional identification
   16.4 Marking of equipment
   16.5 Reference designations
17 Documentation
   17.1 General
   17.2 Information to be provided
   17.3 Requirements applicable to all documentation
   17.4 Installation documents
   17.5 Overview diagrams and function diagrams
   17.6 Circuit diagrams
   17.7 Operating manual
   17.8 Maintenance manual
   17.9 Parts list
18 Verification
   18.1 General
   18.2 Verification of conditions for protection by automatic
        disconnection of supply
   18.3 Insulation resistance tests
   18.4 Voltage tests
   18.5 Protection against residual voltages
   18.6 Functional tests
   18.7 Retesting
Annex A (normative) Protection against indirect contact in
                    TN-systems
Annex B (informative) Inquiry form for the electrical equipment
                      of hoisting machines
Annex C (informative) Current-carrying capacity and overcurrent
                      protection of conductors and cables in the
                      electrical equipment of machines
Annex D (informative) Conductor selection for intermittent duty
Annex E (informative) Explanation of emergency operation functions
Annex F (informative) Comparison of typical conductor
                      cross-sectional areas
Bibliography
Index

IEC 60204-32 applies to the application of electrical and electronic equipment and systems to hoisting machines and related equipment. The equipment covered by this standard commences at the point of connection of the supply to the electrical equipment of the hoisting machine (crane-supply-switch) including systems for power supply and control feeders situated outside of the hoisting machine, for example, flexible cables or conductor wires or conductor bars. This standard is applicable to equipment or parts of equipment not exceeding 1 000 V a.c. or 1 500 V d.c. between lines and with nominal frequencies not exceeding 200 Hz. For the purposes of this standard, hoisting machines include cranes of all types, winches of all types, and storage and retrieval machines. It includes the following significant technical changes with respect to the previous edition:
- deletion of Clause 11 of the previous edition;
- modification of the structure of equipotential bonding (Clause 8);
- separation of control functions (Clause 9) and devices (Clause 10);
- structure of technical documentation (Clause 17);
- verification of protection by automatic disconnection of supply (18.2);
- Subclause 9.2.7 on cableless controls has been modified.