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eLibrary > BS EN IEC 60204-32:2025 Safety of machinery. Electrical equipment of machines - Requirements for hoisting machines >

BS EN IEC 60204-32:2025 Safety of machinery. Electrical equipment of machines - Requirements for hoisting machines, 2025

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European foreword
Endorsement notice
Annex ZA (normative) Normative references to international publications with their corresponding European publications [Go to Page]
English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
Figures [Go to Page]
Figure 1 – Block diagram of combined working cranes in a typical material handling system in a seaport
Figure 2 – Block diagram of a typical crane and its associated electrical equipment
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms [Go to Page]
3.1 Terms and definitions
3.2 Abbreviated terms
4 General requirements [Go to Page]
4.1 General considerations
4.2 Selection of equipment [Go to Page]
4.2.1 General
4.2.2 Selection of power contactors
4.2.3 Switchgear
4.2.4 Selection of PDS
4.3 Electrical supply [Go to Page]
4.3.1 General requirements
4.3.2 AC supplies
4.3.3 DC supplies
4.3.4 Special supply systems
4.4 Physical environment and operating conditions [Go to Page]
4.4.1 General
4.4.2 Electromagnetic compatibility (EMC)
4.4.3 Ambient air temperature
4.4.4 Humidity
4.4.5 Altitude
4.4.6 Contaminants
4.4.7 Ionizing and non-ionizing radiation
4.4.8 Vibration, shock, and bump
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 [Go to Page]
5.1 Incoming supply conductor terminations
5.2 Terminal for connection of the external protective conductor
5.3 Supply disconnecting and switching devices [Go to Page]
5.3.1 General
5.3.2 Type
Tables [Go to Page]
Table 1 – Minimum cross-sectional area of protective copper conductors
Figure 3 – Examples of electrical supply systems [Go to Page]
5.3.3 Requirements
5.3.4 Operating means of the supply disconnecting device
5.3.5 Crane-supply-switch
Figure 4 – Disconnector isolator
Figure 5 – Disconnecting circuit breaker [Go to Page]
5.3.6 Crane-disconnector
5.3.7 Crane-switch
5.3.8 Excepted circuits
5.4 Devices for removal of power for prevention of unexpected start-up
5.5 Devices for isolating electrical equipment
5.6 Protection against unauthorized, inadvertent and/or mistaken connection
6 Protection against electric shock [Go to Page]
6.1 General
6.2 Basic protection [Go to Page]
6.2.1 General
6.2.2 Protection by enclosures
6.2.3 Protection by insulation of live parts
6.2.4 Protection against residual voltages
6.2.5 Protection by barriers
6.2.6 Protection by placing out of reach or protection by obstacles
6.3 Fault protection [Go to Page]
6.3.1 General
6.3.2 Prevention of the occurrence of a touch voltage
6.3.3 Protection by automatic disconnection of supply
6.4 Protection by the use of PELV [Go to Page]
6.4.1 General requirements
6.4.2 Sources for PELV
7 Protection of equipment [Go to Page]
7.1 General
7.2 Overcurrent protection [Go to Page]
7.2.1 General
7.2.2 Supply conductors
7.2.3 Power circuits
7.2.4 Control circuits
7.2.5 Socket outlets and their associated conductors
7.2.6 Lighting circuits
7.2.7 Transformers
7.2.8 Location of overcurrent protective devices
7.2.9 Overcurrent protective devices
7.2.10 Rating and setting of overcurrent protective devices
7.3 Protection of motors against overheating [Go to Page]
7.3.1 General
7.3.2 Overload protection
7.3.3 Over-temperature protection
7.4 Protection against abnormal temperature
7.5 Protection against the effects of supply interruption or voltage reduction and subsequent restoration
7.6 Motor overspeed protection
7.7 Additional earth fault/residual current protection
7.8 Phase sequence protection
7.9 Protection against overvoltages due to lightning and to switching surges
7.10 Short-circuit current rating
8 Equipotential bonding [Go to Page]
8.1 General
Figure 6 – Example of equipotential bonding for electrical equipment of a hoisting machine
8.2 Protective bonding circuit [Go to Page]
8.2.1 General
8.2.2 Protective conductors
8.2.3 Continuity of the protective bonding circuit
8.2.4 Exclusion of switching devices from the protective bonding circuit
8.2.5 Parts that need not be connected to the protective bonding circuit
8.2.6 Protective conductor connecting points
8.2.7 Mobile hoisting machines
Figure 7 – Symbol IEC 60417-5019: Protective earth [Go to Page]
8.2.8 Additional requirements for electrical equipment having earth leakage currents higher than 10 mA AC or DC
8.3 Functional bonding
Figure 8 – Symbol IEC 60417-5020: Frame or chassis
8.4 Measures to restrict the effects of high leakage current
9 Control circuits and control functions [Go to Page]
9.1 Control circuits [Go to Page]
9.1.1 General
9.1.2 Control circuit supply
9.1.3 Control circuit voltages
9.1.4 Protection
9.2 Control functions [Go to Page]
9.2.1 General
9.2.2 Categories of stop functions
9.2.3 Operating modes
9.2.4 Suspension of safeguarding
9.2.5 Operation
9.2.6 Other control functions
9.2.7 Cableless control system (CCS)
9.3 Protective interlocks [Go to Page]
9.3.1 General
9.3.2 Reclosing or resetting of an interlocking safeguard
9.3.3 Exceeding operating limits
9.3.4 Operation of auxiliary functions
9.3.5 Interlocks between different operations and for contrary motions
9.3.6 Reverse current braking
9.4 Control functions in the event of failure [Go to Page]
9.4.1 General requirements
9.4.2 Measures to minimize risk in the event of failure
9.4.3 Protection against malfunction of control circuits
Figure 9 – Method a) Earthed control circuit fed by a transformer
Figure 10 – Method b1) Non-earthed control circuit fed by transformer
Figure 11 – Method b2) Non-earthed control circuit fed by transformer
Figure 12 – Method b3) Non-earthed control circuit fed by transformer
Figure 13 – Method c) Control circuits fed by transformerwith an earthed centre-tap winding
Figure 14 – Method d1a) Control circuit without transformer connected between a phase and the neutral of an earthed supply system
Figure 15 – Method d1b) control circuit without transformer connected between two phases of an earthed supply system
Figure 16 – Method d2a) Control circuit without transformer connected between phase and neutral of a non-earthed supply system
Figure 17 – Method d2b) control circuit without transformer connected between two phases of a non-earthed supply system [Go to Page]
9.4.4 Protection against maloperation of a motion control system
10 Operator interface and hoisting machine mounted control devices [Go to Page]
10.1 General [Go to Page]
10.1.1 General requirements
10.1.2 Location and mounting
10.1.3 Protection
10.1.4 Position sensors
10.1.5 Portable and pendant control stations
10.2 Actuators [Go to Page]
10.2.1 Colours
10.2.2 Markings
Table 2 – Symbols for actuators (power)
Table 3 – Symbols for actuators (machine operation)
10.3 Indicator lights, displays and audible devices [Go to Page]
10.3.1 General
10.3.2 Colours
10.3.3 Flashing lights and displays
Table 4 – Colours for indicator lights and their meanings with respect to the condition of the hoisting machine
10.4 Illuminated push-buttons
10.5 Rotary control devices
10.6 Start devices
10.7 Emergency stop devices [Go to Page]
10.7.1 Location of emergency stop devices
10.7.2 Types of emergency stop device
10.7.3 Colour of actuators
10.7.4 Local operation of the crane-supply-switch and the crane-disconnector to effect emergency stop
10.8 Emergency switching-off devices [Go to Page]
10.8.1 Location of emergency switching-off devices
10.8.2 Types of emergency switching-off device
10.8.3 Colour of actuators
10.8.4 Local operation of the crane-supply-switch and the crane-disconnector to effect emergency switching-off
10.9 Enabling control device
11 Controlgear: location, mounting and enclosures [Go to Page]
11.1 General requirements
11.2 Location and mounting [Go to Page]
11.2.1 Accessibility and maintenance
11.2.2 Physical separation or grouping
11.2.3 Heating effects
11.3 Degrees of protection
11.4 Enclosures, doors and openings
11.5 Access to switchgear and to controlgear [Go to Page]
11.5.1 General
11.5.2 Access to gangways
11.5.3 Gangways in front of switchgear and controlgear
12 Conductors and cables [Go to Page]
12.1 General requirements
12.2 Conductors
12.3 Insulation
Table 5 – Minimum cross-sectional areas of copper conductors
Table 6 – Classification of conductors
12.4 Current-carrying capacity in normal service
12.5 Conductor and cable voltage drop
Table 7 – Examples of current-carrying capacity (Iz) of PVC-insulated copper conductors or cables under steady-state conditions in an ambient air temperatureof +40 °C for different methods of installation
12.6 Flexible cables [Go to Page]
12.6.1 General
12.6.2 Mechanical rating
12.6.3 Current-carrying capacity of cables wound on drums
12.7 Conductor wires, conductor bars and slip-ring assemblies [Go to Page]
12.7.1 Basic protection
Table 8 – Derating factors for cables wound on drums
Figure 18 – Limit of arm’s reach in cases where the distance from the middle of the hoisting device-rail to the edge of the girder is less than 300 mm
Figure 19 – Limit of arm’s reach in cases where the distance from the middle of the hoisting device-rail to the edge of the girder is at least 300 mm [Go to Page]
12.7.2 Protective conductor circuit
12.7.3 Protective conductor current collectors
Figure 20 – Limit of arm’s reach in cases of using additional obstacles [Go to Page]
12.7.4 Removable current collectors with a disconnector function
12.7.5 Clearances in air
12.7.6 Creepage distances
12.7.7 Conductor system sectioning
12.7.8 Construction and installation of conductor wire, conductor bar systems andslip-ring assemblies
13 Wiring practices [Go to Page]
13.1 Connections and routing [Go to Page]
13.1.1 General requirements
13.1.2 Conductor and cable runs
13.1.3 Conductors of different circuits
13.1.4 AC circuits – Electromagnetic effects (prevention of eddy currents)
13.1.5 Connection between pick-up and pick-up converter of an inductive power supply system
13.2 Identification of conductors [Go to Page]
13.2.1 General requirements
13.2.2 Identification of the protective conductor / protective bonding conductor
13.2.3 Identification of the neutral conductor
Figure 21– Symbol IEC 60417-5019
Figure 22 – Symbol IEC 60417-5021 [Go to Page]
13.2.4 Identification by colour
13.3 Wiring inside enclosures
13.4 Wiring outside enclosures [Go to Page]
13.4.1 General requirements
13.4.2 External ducts
13.4.3 Connection to the hoisting machine and to moving elements on the hoisting machine
13.4.4 Interconnection of devices on the hoisting machine
13.4.5 Plug/socket combinations
Table 9 – Minimum permitted bending radii for the forced guiding of flexible cables [Go to Page]
13.4.6 Dismantling for shipment
13.4.7 Additional conductors
13.5 Ducts, connection boxes and other boxes [Go to Page]
13.5.1 General requirements
13.5.2 Percentage fill of ducts
13.5.3 Rigid metal conduits and fittings
13.5.4 Flexible metal conduits and fittings
13.5.5 Flexible non-metallic conduits and fittings
13.5.6 Cable trunking systems
13.5.7 Hoisting machine compartments and cable trunking systems
13.5.8 Connection boxes and other boxes
13.5.9 Motor connection boxes
14 Electric motors and associated equipment [Go to Page]
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 Socket-outlets and lighting [Go to Page]
15.1 Socket-outlets for accessories
15.2 Local lighting of the hoisting machine and of the equipment [Go to Page]
15.2.1 General
15.2.2 Supply
15.2.3 Protection
15.2.4 Fittings
16 Marking, warning signs and reference designations [Go to Page]
16.1 General
16.2 Warning signs [Go to Page]
16.2.1 Electric shock hazard
16.2.2 Hot surfaces hazard
16.2.3 Hazard from energy storage system
Figure 23 – Symbol ISO 7010-W012
Figure 24 – Symbol ISO 7010-W017
Figure 25 – Warning sign: energy storage system
16.3 Functional identification
16.4 Marking of enclosures of electrical equipment
16.5 Reference designations
17 Technical documentation [Go to Page]
17.1 General
17.2 Information related to the electrical equipment
18 Verification [Go to Page]
18.1 General
18.2 Verification of conditions for protection by automatic disconnection of supply [Go to Page]
18.2.1 General
18.2.2 Test 1 – Verification of the continuity of the protective bonding circuit
18.2.3 Test 2 – Fault loop impedance verification and suitability of the associated overcurrent protective device
18.2.4 Application of the test methods for TN-systems
Table 10 – Application of the test methods for TN-systems
18.3 Insulation resistance tests
Table 11 – Examples of maximum cable length from each protective device to their loads for TN-systems
18.4 Voltage tests
18.5 Protection against residual voltages
18.6 Functional tests
18.7 Retesting
Annexes [Go to Page]
Annex A (normative) Fault protection by automatic disconnection of supply [Go to Page]
A.1 Fault protection for machines supplied from TN-systems [Go to Page]
A.1.1 General
A.1.2 Conditions for protection by automatic disconnection of the supply by overcurrent protective devices
Table A.1 – Maximum disconnecting times for TN systems [Go to Page]
[Go to Page]
A.1.3 Condition for protection by reducing the touch voltage below 50 V
A.1.4 Verification of conditions for protection by automatic disconnection of the supply
Figure A.1 – Typical arrangement for fault loopimpedance (Zs) measurement in TN systems
Figure A.2 – Typical arrangement for fault loop impedance (Zs)measurement for power drive system circuits in TN systems [Go to Page]
A.2 Fault protection for machines supplied from TT-systems [Go to Page]
A.2.1 Connection to earth
A.2.2 Fault protection for TT systems
A.2.3 Verification of protection by automatic disconnection of supply using a residual current protective device (RCD)
Table A.2 – Maximum disconnecting time for TT-systems [Go to Page]
[Go to Page]
A.2.4 Measurement of the fault loop impedance (Zs)
Figure A.3 – Typical arrangement for fault loopimpedance (Zs) measurement in TT systems
Figure A.4 – Typical arrangement for fault loop impedance (Zs) measurement for Power Drive System circuits in TT systems
Annex B (informative) Enquiry 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 [Go to Page]
C.1 General
C.2 General operating conditions [Go to Page]
C.2.1 Ambient air temperature
C.2.2 Methods of installation
Table C.1 – Correction factors [Go to Page]
[Go to Page]
C.2.3 Grouping
Figure C.1 – Methods of conductor and cable installationindependent of number of conductors/cables
Table C.2 – Derating factors for Iz for grouping
Table C.3 – Derating factors for Iz for multi-core cables up to 10 mm2 [Go to Page]
[Go to Page]
C.2.4 Classification of conductors
C.3 Co-ordination between conductors and protective devices providing overload protection
Figure C.2 – Parameters of conductors and protective devices
Table C.4 – Classification of conductors [Go to Page]
C.4 Overcurrent protection of conductors
Table C.5 – Maximum allowable conductor temperatures under normal and short-circuit conditions
Annex D (informative) Conductor selection for intermittent duty [Go to Page]
D.1 General
D.2 Intermittent duty with 10-min cycle
D.3 Intermittent duty with any cycle time
Table D.1 – Correction factor for 10 min cycle
Table D.2 – Thermal time constant of conductors [Go to Page]
D.4 Calculation of thermal equivalent current
Figure D.1 – An example of current and time of the segments of the operating cycle of a variable speed AC hoist drive
Annex E (informative) Explanation of emergency operation functions [Go to Page]
E.1 Emergency operations
E.2 Emergency stop
E.3 Emergency start
E.4 Emergency switching-off
E.5 Emergency switching-on
Annex F (informative) Comparison of typical conductor cross-sectional areas
Table F.1 – Comparison of conductor sizes
Annex G (informative) Measures to reduce the effects of electromagnetic influences [Go to Page]
G.1 General
G.2 Mitigation of electromagnetic interference (EMI) [Go to Page]
G.2.1 General
G.2.2 Measures to reduce EMI
G.3 Separation and segregation of cables
Figure G.1 – By-pass conductor for screen reinforcement
Table G.1 – Minimum separation distances using metallic containment as illustrated in Figure G.2
Figure G.2 – Examples of vertical separation and segregation
Figure G.3 – Examples of horizontal separation and segregation
Figure G.4 – Cable arrangements in metal cable trays
Figure G.5 – Connections between metal cable trays or cable trunking systems [Go to Page]
G.4 Power supply of a machine by parallel sources
G.5 Supply impedance where a Power Drive System (PDS) is used
G.6 Emission levels for electrical equipment for PDS
Figure G.6 – Interruption of metal cable trays at fire barriers
Table G.2 – Limits for the interference voltage for the environments / categories [Go to Page]
G.7 Conducted disturbances
Table G.3 – Limits for propagated electromagnetic disturbance
Table G.4 – Limits for conducted disturbances [Go to Page]
G.8 Immunity requirements – Performance criteria
Table G.5 – Immunity requirements – performance criteria
Annex H (informative) Documentation and information
Table H.1 – Documentation and information that can be applicable
Bibliography [Go to Page]

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