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BS EN 620:2021 Continuous handling equipment and systems. Safety requirements for fixed belt conveyors for bulk materials, 2021
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Safety requirements and /or measures for belt conveyors [Go to Page]
- 4.1 General [Go to Page]
- 4.1.1 Introduction
- 4.1.2 Zone concept
- 4.1.3 Requirements for restricted zone
- 4.2 Requirements for guards [Go to Page]
- 4.2.1 General
- 4.2.2 Fixed guard [Go to Page]
- 4.2.2.1 General
- 4.2.2.2 Opening(s) in fixed guard
- 4.2.3 Interlocking guard
- 4.2.4 Inspection cover
- 4.2.5 Nip guard
- 4.3 Measures for protection against mechanical hazards [Go to Page]
- 4.3.1 General requirements
- 4.3.2 Crushing and shearing hazards [Go to Page]
- 4.3.2.1 Crushing and shearing points between conveyed material and fixed components of the conveyor
- 4.3.2.2 Raising, lowering, rotating and translating equipment
- 4.3.2.3 Take-up devices
- 4.3.2.4 Trippers, radial conveyors
- 4.3.3 Control cabin
- 4.3.4 Entanglement, drawing-in and trapping hazards [Go to Page]
- 4.3.4.1 General
- 4.3.4.2 Nip points at pulley and idler
- 4.3.4.3 In-running nips
- 4.3.4.4 Belt cleaning devices and other ancillary devices
- 4.3.4.5 Transmission parts
- 4.3.4.6 Feed hoppers, skirt plates and fixed parts
- 4.3.5 Hazards arising from ejection of parts (of machinery or handled materials) [Go to Page]
- 4.3.5.1 Parts of machinery
- 4.3.5.2 Handled materials
- 4.3.6 Means of access [Go to Page]
- 4.3.6.1 Walkways, control stations and platforms
- 4.3.6.2 Access over the conveyor
- 4.3.6.3 Access at or around terminals of the conveyor and where material is discharged
- 4.4 Measures for protection against electrical hazards [Go to Page]
- 4.4.1 General
- 4.4.2 Environment
- 4.4.3 Electrostatic charges
- 4.5 Measures for protection against hydraulic hazards
- 4.6 Measures for protection against pneumatic hazards
- 4.7 Measures for protection against thermal hazards [Go to Page]
- 4.7.1 Burns and scalds by a possible contact of persons with parts or materials at high temperature
- 4.7.2 Health damaging effects by hot or cold work environment
- 4.8 Measures for protection against fire and explosion hazards [Go to Page]
- 4.8.1 Belt friction
- 4.8.2 Transported material
- 4.9 Neglected ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities) [Go to Page]
- 4.9.1 Unhealthy postures or excessive efforts
- 4.9.2 Isolated work places
- 4.10 Measures in case of failure of energy supply and other functional disorders [Go to Page]
- 4.10.1 Uncontrolled motion
- 4.10.2 Failure or malfunction of safety related parts of control systems [Go to Page]
- 4.10.2.1 Safety devices
- 4.10.2.2 Control systems
- 4.10.2.3 Operating modes
- 4.10.2.4 Start function
- 4.10.2.5 Stop function
- 4.10.2.6 Emergency stop
- 4.10.2.7 Pull-cord operated emergency stop switch
- 4.10.2.8 Automatic malfunction detection
- 4.11 Measures for protection against hazards arising during inspection, maintenance and cleaning
- 4.12 Noise reduction at design stage
- 5 Verification of safety requirements and/or measures [Go to Page]
- 5.1 General
- 5.2 Electrical equipment
- 5.3 Fire or explosion hazards
- 6 Information for use [Go to Page]
- 6.1 Instruction handbook [Go to Page]
- 6.1.1 General
- 6.1.2 Instructions for the installation of the equipment
- 6.1.3 Instructions for the operation of the equipment
- 6.1.4 Noise declaration
- 6.1.5 Instructions for maintenance
- 6.1.6 Training
- 6.1.7 Decommissioning and dismantling
- 6.2 Marking
- Annex A (informative)List of significant hazards [Go to Page]
- A.1 General
- A.2 Mechanical hazards [Go to Page]
- A.2.1 General
- A.2.2 Crushing and shearing hazards
- A.2.3 Cutting or severing hazards
- A.2.4 Entanglement, drawing-in or trapping hazards
- A.2.5 Hazards arising from ejection of parts (of machinery or handled materials)
- A.2.6 Slip, trip and fall hazards
- A.3 Electrical hazards [Go to Page]
- A.3.1 Electrical equipment
- A.3.2 Electrostatic charges
- A.4 Thermal hazards [Go to Page]
- A.4.1 Contact with parts or materials at high temperatures
- A.4.2 Hazards related to temperature
- A.5 Fire or explosion hazards
- A.6 Hazards generated by neglected ergonomic principals in machine design [Go to Page]
- A.6.1 Unhealthy posture or excessive efforts
- A.6.2 Mental overload or underload
- A.7 Hazards arising from failure of the energy supply and other functional disorders [Go to Page]
- A.7.1 Failure of the energy supply
- A.7.2 Failure or malfunction of safety related equipment, controls, or control systems
- A.8 Hazards caused by the presence of stored energy [Go to Page]
- A.8.1 Mechanical hazards
- A.8.2 Hydraulic hazards
- A.8.3 Pneumatic hazards
- A.9 Hazards arising during inspection, maintenance and cleaning
- Annex B (normative)Specification or required performance level (PLr)
- Annex C (normative)Noise Test Code [Go to Page]
- C.1 General
- C.2 Operating conditions during measurements
- C.3 Determination of A‐weighted emission sound pressure level
- C.4 Measurement positions
- C.5 Information to be recorded
- C.6 Information to be reported
- C.7 Noise emission declaration
- C.8 Example of noise declaration
- Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC aimed to be covered [Go to Page]
