AS/NZS 4024.1204:2019
Safety of machinery - Electrical equipment of machines - Part 1204: General requirements
Provides requirements and recommendations relating to the safety of electrical, electronic and programmable electronic equipment and systems to machines not portable by hand while working, including a group of machines working together in a coordinated manner. The equipment covered by this part of AS/NZS 4024 commences at the point of connection of the supply to the electrical equipment of the machine. This standard does not cover all the requirements (for example, guarding, interlocking and control) that are needed or required by other parts of AS/NZS 4024 and regulations in order to protect persons from hazards other than electrical hazards. Each type of machine has unique requirements to be accommodated to provide adequate safety. Adopted with national modifications IEC 60204-1:2016. The modifications are additional requirements and are set out in Appendix ZZ, which has been added at the end of the source text.
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AS/NZS 4024.1204:2019 Electrical equipment of machines General requirements (IEC 60204-1:2016 (ED. 6.0) MOD)
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 General requirements
4.1 General
4.2 Selection of equipment
4.2.1 General
4.2.2 Switchgear
4.3 Electrical supply
4.3.1 General
4.3.2 AC supplies
4.3.3 DC supplies
4.3.4 Special supply systems
4.4 Physical environment and operating conditions
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
5 Incoming supply conductor terminations and devices for disconnecting and switching off
5.1 Incoming supply conductor terminations
5.2 Terminal for connection of the external protective conductor
5.3 Supply disconnecting (isolating) device
5.3.1 General
5.3.2 Type
5.3.3 Requirements
5.3.4 Operating means of the supply disconnecting device
5.3.5 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
6.1 General
6.2 Basic protection
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
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
6.4.1 General requirements
6.4.2 Sources for PELV
7 Protection of equipment
7.1 General
7.2 Overcurrent protection
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
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
8.1 General
8.2 Protective bonding circuit
8.2.1 General
8.2.2 Protective conductors
8.2.3 Continuity of the protective bonding circuit
8.2.4 Protective conductor connecting points
8.2.5 Mobile machines
8.2.6 Additional requirements for electrical equipment having earth leakage currents higher than 10 mA
8.3 Measures to restrict the effects of high leakage current
8.4 Functional bonding
9 Control circuits and control functions
9.1 Control circuits
9.1.1 Control circuit supply
9.1.2 Control circuit voltages
9.1.3 Protection
9.2 Control functions
9.2.1 General
9.2.2 Categories of stop functions
9.2.3 Operation
9.2.4 Cableless control system (CCS)
9.3 Protective interlocks
9.3.1 Reclosing or resetting of an interlocking safeguard
9.3.2 Exceeding operating limits
9.3.3 Operation of auxiliary functions
9.3.4 Interlocks between different operations and for contrary motions
9.3.5 Reverse current braking
9.3.6 Suspension of safety functions and/or protective measures
9.4 Control functions in the event of failure
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
10 Operator interface and machine-mounted control devices
10.1 General
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
10.2.1 Colours
10.2.2 Markings
10.3 Indicator lights and displays
10.3.1 General
10.3.2 Colours
10.3.3 Flashing lights and displays
10.4 Illuminated push-buttons
10.5 Rotary control devices
10.6 Start devices
10.7 Emergency stop devices
10.7.1 Location of emergency stop devices
10.7.2 Types of emergency stop device
10.7.3 Operation of the supply disconnecting device to effect emergency stop
10.8 Emergency switching off devices
10.8.1 Location of emergency switching off devices
10.8.2 Types of emergency switching off device
10.8.3 Local operation of the supply disconnecting device to effect emergency switching off
10.9 Enabling control device
11 Controlgear: location, mounting, and enclosures
11.1 General requirements
11.2 Location and mounting
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 electrical equipment
12 Conductors and cables
12.1 General requirements
12.2 Conductors
12.3 Insulation
12.4 Current-carrying capacity in normal service
12.5 Conductor and cable voltage drop
12.6 Flexible cables
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
12.7.1 Basic protection
12.7.2 Protective conductors
12.7.3 Protective conductor current collectors
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 and slip-ring assemblies
13 Wiring practices
13.1 Connections and routing
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
13.2.1 General requirements
13.2.2 Identification of the protective conductor / protective bonding conductor
13.2.3 Identification of the neutral conductor
13.2.4 Identification by colour
13.3 Wiring inside enclosures
13.4 Wiring outside enclosures
13.4.1 General requirements
13.4.2 External ducts
13.4.3 Connection to moving elements of the machine
13.4.4 Interconnection of devices on the machine
13.4.5 Plug/socket combinations
13.4.6 Dismantling for shipment
13.4.7 Additional conductors
13.5 Ducts, connection boxes and other boxes
13.5.1 General requirements
13.5.2 Rigid metal conduit and fittings
13.5.3 Flexible metal conduit and fittings
13.5.4 Flexible non-metallic conduit and fittings
13.5.5 Cable trunking systems
13.5.6 Machine compartments and cable trunking systems
13.5.7 Connection boxes and other boxes
13.5.8 Motor connection 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
15 Socket-outlets and lighting
15.1 Socket-outlets for accessories
15.2 Local lighting of the machine and of the equipment
15.2.1 General
15.2.2 Supply
15.2.3 Protection
15.2.4 Fittings
16 Marking, warning signs and reference designations
16.1 General
16.2 Warning signs
16.2.1 Electric shock hazard
16.2.2 Hot surfaces hazard
16.3 Functional identification
16.4 Marking of enclosures of electrical equipment
16.5 Reference designations
17 Technical documentation
17.1 General
17.2 Information related to the electrical equipment
18 Verification
18.1 General
18.2 Verification of conditions for protection by automatic disconnection of supply
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
18.3 Insulation resistance tests
18.4 Voltage tests
18.5 Protection against residual voltages
18.6 Functional tests
18.7 Retesting
Annexes
Annex A (normative) Fault protection by automatic disconnection of supply
A.1 Fault protection for machines supplied from TN-systems
A.1.1 General
A.1.2 Conditions for protection by automatic disconnection of the supply by overcurrent protective devices
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
A.2 Fault protection for machines supplied from TT-systems
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
A.2.4 Measurement of the fault loop impedance (Zs)
Annex B (informative) Enquiry form for the electrical equipment of machines
Annex C (informative) Examples of machines covered by this part of IEC 60204
Annex D (informative) Current-carrying capacity and overcurrent protection of conductors and cables in the electrical equipment of machines
D.1 General
D.2 General operating conditions
D.2.1 Ambient air temperature
D.2.2 Methods of installation
D.2.3 Grouping
D.2.4 Classification of conductors
D.3 Co-ordination between conductors and protective devices providing overload protection
D.4 Overcurrent protection of conductors
D.5 Effect of harmonic currents on balanced three-phase systems
Annex E (informative) Explanation of emergency operation functions
Annex F (informative) Guide for the use of this part of IEC 60204
Annex G (informative) Comparison of typical conductor cross-sectional areas
Annex H (informative) Measures to reduce the effects of electromagnetic influences
H.1 Definitions
H.1.1 apparatus
H.1.2 fixed installation
H.2 General
H.3 Mitigation of electromagnetic interference (EMI)
H.3.1 General
H.3.2 Measures to reduce EMI
H.4 Separation and segregation of cables
H.5 Power supply of a machine by parallel sources
H.6 Supply impedance where a Power Drive System (PDS) is used
Annex I (informative)Documentation / Information
Bibliography
Figures
Figure 1 – Block diagram of a typical machine
Figure 2 – Disconnector isolator
Figure 3 – Disconnecting circuit breaker
Figure 4 – Example of equipotential bonding for electrical equipment of a machine
Figure 5 – Symbol IEC 60417-5019: Protective earth
Figure 6 – Symbol IEC 60417-5020: Frame or chassis
Figure 7 – Method a) Earthed control circuit fed by a transformer
Figure 8 – Method b1) Non-earthed control circuit fed by transformer
Figure 9 – Method b2) Non-earthed control circuit fed by transformer
Figure 10 – Method b3) Non-earthed control circuit fed by transformer
Figure 11 – Method c) Control circuits fed by transformerwith an earthed centre-tap winding
Figure 12 – Method d1a) Control circuit without transformer connected between a phase and the neutral of an earthed supply system
Figure 13 – Method d1b) Control circuit without transformer connected between two phases of an earthed supply system
Figure 14 – Method d2a) Control circuit without transformer connected between phase and neutral of a non-earthed supply system
Figure 15 – Method d2b) control circuit without transformer connected between two phases of a non-earthed supply system
Figure 16 – Symbol IEC 60417-5019
Figure 17 – Symbol IEC 60417-5021
Figure 18 – Symbol ISO 7010-W012
Figure 19 – Symbol ISO 7010-W017
Figure A.1 – Typical arrangement for fault loop impedance (Zs) measurement in TN systems
Figure A.2 – Typical arrangement for fault loop impedance (Zs) measurement for power drive system circuits in TN systems
Figure A.3 – Typical arrangement for fault loop impedance (Zs) measurement in TT systems
Figure A.4 – Typical arrangement for fault loop impedance (Zs) measurement for power drive system circuits in TT systems
Figure D.1 – Methods of conductor and cable installation independent of number of conductors/cables
Figure D.2 – Parameters of conductors and protective devices
Figure H.1 – By-pass conductor for screen reinforcement
Figure H.2 – Examples of vertical separation and segregation
Figure H.3 – Examples of horizontal separation and segregation
Figure H.4 – Cable arrangements in metal cable trays
Figure H.5 – Connections between metal cable trays or cable trunking systems
Figure H.6 – Interruption of metal cable trays at fire barriers
Tables
Table 1 – Minimum cross-sectional area of copper protective conductors
Table 2 – Symbols for actuators (Power)
Table 3 – Symbols for actuators (Machine operation)
Table 4 – Colours for indicator lights and their meanings with respect to the condition of the machine
Table 5 – Minimum cross-sectional areas of copper conductors
Table 6 – 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
Table 7 – Derating factors for cables wound on drums
Table 8 – Minimum permitted bending radii for the forced guidingof flexible cables
Table 9 – Application of the test methods for TN-systems
Table 10 – Examples of maximum cable lengths from protective devices to their loads for TN-systems
Table A.1 – Maximum disconnecting times for TN systems
Table A.2 – Maximum disconnecting time for TT-systems
Table D.1 – Correction factors
Table D.2 – Derating factors for Iz for grouping
Table D.3 – Derating factors for Iz for multicore cables up to 10 mm2
Table D.4 – Classification of conductors
Table D.5 – Maximum allowable conductor temperatures under normal and short-circuit conditions
Table F.1 – Application options
Table G.1 – Comparison of conductor sizes
Table H.1 – Minimum separation distances using metallic containment as illustrated in Figure H.2
Table I.1 – Documentation / Information that can be applicable
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AS/NZS 4024.1204:2019 Electrical equipment of machines General requirements (IEC 60204-1:2016 (ED. 6.0) MOD)
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 General requirements
4.1 General
4.2 Selection of equipment
4.2.1 General
4.2.2 Switchgear
4.3 Electrical supply
4.3.1 General
4.3.2 AC supplies
4.3.3 DC supplies
4.3.4 Special supply systems
4.4 Physical environment and operating conditions
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
5 Incoming supply conductor terminations and devices for disconnecting and switching off
5.1 Incoming supply conductor terminations
5.2 Terminal for connection of the external protective conductor
5.3 Supply disconnecting (isolating) device
5.3.1 General
5.3.2 Type
5.3.3 Requirements
5.3.4 Operating means of the supply disconnecting device
5.3.5 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
6.1 General
6.2 Basic protection
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
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
6.4.1 General requirements
6.4.2 Sources for PELV
7 Protection of equipment
7.1 General
7.2 Overcurrent protection
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
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
8.1 General
8.2 Protective bonding circuit
8.2.1 General
8.2.2 Protective conductors
8.2.3 Continuity of the protective bonding circuit
8.2.4 Protective conductor connecting points
8.2.5 Mobile machines
8.2.6 Additional requirements for electrical equipment having earth leakage currents higher than 10 mA
8.3 Measures to restrict the effects of high leakage current
8.4 Functional bonding
9 Control circuits and control functions
9.1 Control circuits
9.1.1 Control circuit supply
9.1.2 Control circuit voltages
9.1.3 Protection
9.2 Control functions
9.2.1 General
9.2.2 Categories of stop functions
9.2.3 Operation
9.2.4 Cableless control system (CCS)
9.3 Protective interlocks
9.3.1 Reclosing or resetting of an interlocking safeguard
9.3.2 Exceeding operating limits
9.3.3 Operation of auxiliary functions
9.3.4 Interlocks between different operations and for contrary motions
9.3.5 Reverse current braking
9.3.6 Suspension of safety functions and/or protective measures
9.4 Control functions in the event of failure
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
10 Operator interface and machine-mounted control devices
10.1 General
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
10.2.1 Colours
10.2.2 Markings
10.3 Indicator lights and displays
10.3.1 General
10.3.2 Colours
10.3.3 Flashing lights and displays
10.4 Illuminated push-buttons
10.5 Rotary control devices
10.6 Start devices
10.7 Emergency stop devices
10.7.1 Location of emergency stop devices
10.7.2 Types of emergency stop device
10.7.3 Operation of the supply disconnecting device to effect emergency stop
10.8 Emergency switching off devices
10.8.1 Location of emergency switching off devices
10.8.2 Types of emergency switching off device
10.8.3 Local operation of the supply disconnecting device to effect emergency switching off
10.9 Enabling control device
11 Controlgear: location, mounting, and enclosures
11.1 General requirements
11.2 Location and mounting
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 electrical equipment
12 Conductors and cables
12.1 General requirements
12.2 Conductors
12.3 Insulation
12.4 Current-carrying capacity in normal service
12.5 Conductor and cable voltage drop
12.6 Flexible cables
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
12.7.1 Basic protection
12.7.2 Protective conductors
12.7.3 Protective conductor current collectors
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 and slip-ring assemblies
13 Wiring practices
13.1 Connections and routing
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
13.2.1 General requirements
13.2.2 Identification of the protective conductor / protective bonding conductor
13.2.3 Identification of the neutral conductor
13.2.4 Identification by colour
13.3 Wiring inside enclosures
13.4 Wiring outside enclosures
13.4.1 General requirements
13.4.2 External ducts
13.4.3 Connection to moving elements of the machine
13.4.4 Interconnection of devices on the machine
13.4.5 Plug/socket combinations
13.4.6 Dismantling for shipment
13.4.7 Additional conductors
13.5 Ducts, connection boxes and other boxes
13.5.1 General requirements
13.5.2 Rigid metal conduit and fittings
13.5.3 Flexible metal conduit and fittings
13.5.4 Flexible non-metallic conduit and fittings
13.5.5 Cable trunking systems
13.5.6 Machine compartments and cable trunking systems
13.5.7 Connection boxes and other boxes
13.5.8 Motor connection 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
15 Socket-outlets and lighting
15.1 Socket-outlets for accessories
15.2 Local lighting of the machine and of the equipment
15.2.1 General
15.2.2 Supply
15.2.3 Protection
15.2.4 Fittings
16 Marking, warning signs and reference designations
16.1 General
16.2 Warning signs
16.2.1 Electric shock hazard
16.2.2 Hot surfaces hazard
16.3 Functional identification
16.4 Marking of enclosures of electrical equipment
16.5 Reference designations
17 Technical documentation
17.1 General
17.2 Information related to the electrical equipment
18 Verification
18.1 General
18.2 Verification of conditions for protection by automatic disconnection of supply
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
18.3 Insulation resistance tests
18.4 Voltage tests
18.5 Protection against residual voltages
18.6 Functional tests
18.7 Retesting
Annexes
Annex A (normative) Fault protection by automatic disconnection of supply
A.1 Fault protection for machines supplied from TN-systems
A.1.1 General
A.1.2 Conditions for protection by automatic disconnection of the supply by overcurrent protective devices
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
A.2 Fault protection for machines supplied from TT-systems
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
A.2.4 Measurement of the fault loop impedance (Zs)
Annex B (informative) Enquiry form for the electrical equipment of machines
Annex C (informative) Examples of machines covered by this part of IEC 60204
Annex D (informative) Current-carrying capacity and overcurrent protection of conductors and cables in the electrical equipment of machines
D.1 General
D.2 General operating conditions
D.2.1 Ambient air temperature
D.2.2 Methods of installation
D.2.3 Grouping
D.2.4 Classification of conductors
D.3 Co-ordination between conductors and protective devices providing overload protection
D.4 Overcurrent protection of conductors
D.5 Effect of harmonic currents on balanced three-phase systems
Annex E (informative) Explanation of emergency operation functions
Annex F (informative) Guide for the use of this part of IEC 60204
Annex G (informative) Comparison of typical conductor cross-sectional areas
Annex H (informative) Measures to reduce the effects of electromagnetic influences
H.1 Definitions
H.1.1 apparatus
H.1.2 fixed installation
H.2 General
H.3 Mitigation of electromagnetic interference (EMI)
H.3.1 General
H.3.2 Measures to reduce EMI
H.4 Separation and segregation of cables
H.5 Power supply of a machine by parallel sources
H.6 Supply impedance where a Power Drive System (PDS) is used
Annex I (informative)Documentation / Information
Bibliography
Figures
Figure 1 – Block diagram of a typical machine
Figure 2 – Disconnector isolator
Figure 3 – Disconnecting circuit breaker
Figure 4 – Example of equipotential bonding for electrical equipment of a machine
Figure 5 – Symbol IEC 60417-5019: Protective earth
Figure 6 – Symbol IEC 60417-5020: Frame or chassis
Figure 7 – Method a) Earthed control circuit fed by a transformer
Figure 8 – Method b1) Non-earthed control circuit fed by transformer
Figure 9 – Method b2) Non-earthed control circuit fed by transformer
Figure 10 – Method b3) Non-earthed control circuit fed by transformer
Figure 11 – Method c) Control circuits fed by transformerwith an earthed centre-tap winding
Figure 12 – Method d1a) Control circuit without transformer connected between a phase and the neutral of an earthed supply system
Figure 13 – Method d1b) Control circuit without transformer connected between two phases of an earthed supply system
Figure 14 – Method d2a) Control circuit without transformer connected between phase and neutral of a non-earthed supply system
Figure 15 – Method d2b) control circuit without transformer connected between two phases of a non-earthed supply system
Figure 16 – Symbol IEC 60417-5019
Figure 17 – Symbol IEC 60417-5021
Figure 18 – Symbol ISO 7010-W012
Figure 19 – Symbol ISO 7010-W017
Figure A.1 – Typical arrangement for fault loop impedance (Zs) measurement in TN systems
Figure A.2 – Typical arrangement for fault loop impedance (Zs) measurement for power drive system circuits in TN systems
Figure A.3 – Typical arrangement for fault loop impedance (Zs) measurement in TT systems
Figure A.4 – Typical arrangement for fault loop impedance (Zs) measurement for power drive system circuits in TT systems
Figure D.1 – Methods of conductor and cable installation independent of number of conductors/cables
Figure D.2 – Parameters of conductors and protective devices
Figure H.1 – By-pass conductor for screen reinforcement
Figure H.2 – Examples of vertical separation and segregation
Figure H.3 – Examples of horizontal separation and segregation
Figure H.4 – Cable arrangements in metal cable trays
Figure H.5 – Connections between metal cable trays or cable trunking systems
Figure H.6 – Interruption of metal cable trays at fire barriers
Tables
Table 1 – Minimum cross-sectional area of copper protective conductors
Table 2 – Symbols for actuators (Power)
Table 3 – Symbols for actuators (Machine operation)
Table 4 – Colours for indicator lights and their meanings with respect to the condition of the machine
Table 5 – Minimum cross-sectional areas of copper conductors
Table 6 – 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
Table 7 – Derating factors for cables wound on drums
Table 8 – Minimum permitted bending radii for the forced guidingof flexible cables
Table 9 – Application of the test methods for TN-systems
Table 10 – Examples of maximum cable lengths from protective devices to their loads for TN-systems
Table A.1 – Maximum disconnecting times for TN systems
Table A.2 – Maximum disconnecting time for TT-systems
Table D.1 – Correction factors
Table D.2 – Derating factors for Iz for grouping
Table D.3 – Derating factors for Iz for multicore cables up to 10 mm2
Table D.4 – Classification of conductors
Table D.5 – Maximum allowable conductor temperatures under normal and short-circuit conditions
Table F.1 – Application options
Table G.1 – Comparison of conductor sizes
Table H.1 – Minimum separation distances using metallic containment as illustrated in Figure H.2
Table I.1 – Documentation / Information that can be applicable
AS/NZS 4024.1204:2019
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