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BS ISO 14990-1:2016 Earth-moving machinery. Electrical safety of machines utilizing electric drives and related components and systems - General requirements >
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BS ISO 14990-1:2016 Earth-moving machinery. Electrical safety of machines utilizing electric drives and related components and systems - General requirements, 2017
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms
- 3.1 Electric shock protection-related terms and definitions
- 3.2 Control-related terms and definitions
- 3.3 Electrical infrastructure-related terms and definitions
- 3.4 Risk-related terms and definitions
- 3.5 Miscellaneous terms and definitions
- 3.6 Abbreviated terms
- 4 General requirements
- 4.1 General
- 4.2 Provisions for handling
- 4.3 Provisions for transportation and storage
- 4.4 Components and devices
- 4.5 Intended operating environment
- 4.5.1 General
- 4.5.2 Exposure
- 4.5.3 Altitude
- 4.5.4 Ingress protection
- 4.6 Electrical source
- 5 Protection against electric shock hazards
- 5.1 General
- 5.2 Protection by enclosures
- 5.3 Protection by insulation
- 5.4 Protection against residual voltages
- 5.5 Protection by barriers
- 5.6 Protection by inaccessibility
- 5.7 Special considerations for low voltage energy storage devices and related buses
- 5.8 Prevention of touch voltage
- 5.8.1 General
- 5.8.2 Protection by class II construction or equivalent
- 5.8.3 Protection by electrical separation
- 5.9 Protection by automatic disconnection of source
- 5.10 Protection by equipotential bonding
- 5.10.1 General
- 5.10.2 Protective equipotential bonding circuit
- 5.10.3 Functional equipotential bonding
- 5.10.4 Devices for earthing and short-circuiting live parts
- 5.11 Protection by use of PELV
- 5.11.1 General
- 5.11.2 Sources for PELV
- 6 Protection against electrical fire hazards
- 6.1 General
- 6.2 Fire hazard assessment
- 6.3 Prevention of ignition
- 6.4 Minimizing the spread of fire
- 7 Protection against thermal hazards
- 8 Protection against mechanical hazards
- 9 Protection against abnormal operation hazards
- 9.1 General
- 9.2 Overcurrent protection (OCP)
- 9.2.1 General
- 9.2.2 Transformers
- 9.2.3 Overcurrent protection (OCP) implementation
- 9.2.4 Rating and setting of overcurrent protective systems
- 9.2.5 Placement of overcurrent protective devices
- 9.3 Abnormal temperature protection
- 9.4 Earth (or chassis in the case of self-powered machines) fault/residual current protection
- 9.5 Protection against overvoltages due to lightning and to switching surges
- 9.6 Protection against other abnormal operation hazards
- 10 Electric power source
- 10.1 Disconnection of source
- 10.1.1 General
- 10.1.2 Source disconnecting devices
- 10.1.3 Equipment disconnecting devices
- 10.2 Prevention of unintended start-up
- 10.3 External electrical charging
- 11 Wiring
- 11.1 General
- 11.2 Conductors
- 11.3 Insulation
- 11.4 Conductor and cable ampacity
- 11.5 Flexible cables
- 11.5.1 General
- 11.5.2 Mechanical rating
- 11.5.3 Ampacity of cables wound on reels
- 11.6 Assemblies having sliding contacts
- 11.6.1 Accessibility of live parts
- 11.6.2 Protective conductor circuit
- 11.6.3 Protective conductor current collectors
- 11.6.4 Removable current collectors used for disconnection
- 11.6.5 Clearances
- 11.6.6 Creepage distances
- 11.6.7 Conductor system sectioning
- 11.6.8 Construction and installation
- 11.7 Connections and routing
- 11.7.1 General
- 11.7.2 Conductor and cable runs
- 11.7.3 Conductors of different circuits
- 11.8 Identification of conductors
- 11.8.1 General
- 11.8.2 Protective conductor identification
- 11.8.3 Neutral conductor identification
- 11.8.4 Identification by colour
- 11.9 Wiring inside enclosures
- 11.10 Wiring outside enclosures
- 11.10.1 General
- 11.10.2 External ducts
- 11.10.3 Connection to moving elements of the EMM
- 11.10.4 Interconnection of devices on the EMM
- 11.10.5 Plug/socket combinations
- 11.10.6 Dismantling for shipment
- 11.10.7 Spare conductors
- 11.11 Ducts and boxes
- 11.11.1 General
- 11.11.2 Rigid metal conduit and fittings
- 11.11.3 Flexible metal conduit and fittings
- 11.11.4 Flexible nonmetallic conduit and fittings
- 11.11.5 Cable trunking systems
- 11.11.6 EMM compartments and cable trunking systems
- 11.11.7 Boxes
- 11.11.8 Motor wiring boxes
- 12 Electric motors and generators
- 12.1 General
- 12.2 Enclosures
- 12.3 Dimensions
- 12.4 Mounting and compartments
- 12.5 Criteria for motor selection or design
- 12.6 Overheating protection
- 12.7 Overspeed protection
- 13 Non-motor loads
- 13.1 Accessories
- 13.2 Local lighting
- 13.2.1 General
- 13.2.2 Source
- 13.2.3 Protection
- 13.2.4 Fittings
- 14 Controls
- 14.1 Control circuits
- 14.1.1 Control circuit voltages
- 14.1.2 Protection
- 14.2 Control functions
- 14.3 Protective interlocks
- 14.3.1 Reclosing or resetting of an interlocking safeguard
- 14.3.2 Operating limits, auxiliary functions, interlocks, and reverse current braking
- 14.4 Control functions in the event of failure
- 14.4.1 General
- 14.4.2 Measures to minimize risk in the event of failure
- 14.4.3 Protection against malfunction due to earth (or chassis in the case of self-powered machines) faults, voltage interruptions and loss of continuity
- 14.5 Operator interface and machine-mounted control devices
- 14.5.1 General
- 14.5.2 Push-buttons
- 14.5.3 Indicator lights and displays
- 14.5.4 Illuminated push-buttons
- 14.5.5 Rotary control devices
- 14.5.6 Start devices
- 14.5.7 Emergency stop devices
- 14.5.8 Emergency switching off devices
- 14.5.9 Enabling control devices
- 14.6 Controlgear: location, mounting, and enclosures
- 14.6.1 General
- 14.6.2 Location and mounting
- 14.6.3 Degrees of protection
- 14.6.4 Enclosures, doors, and openings
- 14.6.5 Access to controlgear
- 14.7 Access to low and high‑voltage equipment
- 15 Manuals and technical documentation
- 15.1 General
- 15.2 Information to be provided
- 15.3 Documentation
- 15.4 Overview diagrams and function diagrams
- 15.5 Circuit diagrams
- 15.6 Operator’s manual
- 15.7 Maintenance manual and service literature
- 15.7.1 General
- 15.7.2 Reduction of electrical hazards while servicing
- 15.8 Parts list
- 16 Marking
- 16.1 General
- 16.2 Warning signs
- 16.2.1 Electric shock hazard
- 16.2.2 Hot surfaces hazard
- 16.2.3 Magnetic field hazard
- 16.2.4 Arc flash hazard
- 16.2.5 Residual voltage hazard
- 16.3 Functional identification
- 16.4 Marking of equipment
- 16.4.1 General
- 16.4.2 Indication of hazardous voltages (all machines)
- 16.5 Reference designations
- 16.6 Protective equipotential bonding terminals
- 17 Tests
- 17.1 General
- 17.2 Protective equipotential bonding circuit continuity
- 17.3 Conditions for protection by automatic disconnection of source
- 17.3.1 General
- 17.3.2 Fault loop impedance verification and suitability of the associated overcurrent protective device in TN systems
- 17.4 Insulation resistance tests
- 17.4.1 Low-voltage insulation resistance test
- 17.4.2 High-voltage insulation resistance test
- 17.5 Voltage withstand tests
- 17.6 Protection against residual voltages
- 17.7 Functional tests
- 17.8 Retesting
- 17.9 IP test for high‑voltage equipment
- Annex A (informative) List of significant hazards
- Annex B (normative) TN systems — Protection against indirect contact
- Annex C (informative) Explanation of emergency operation functions
- Annex D (informative) Comparison of selected requirements of ISO 14990, UN ECE R100 and ISO 6469-3
- Bibliography [Go to Page]