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BS EN 620:2021

BS EN 620:2021

$198.66

Continuous handling equipment and systems. Safety requirements for fixed belt conveyors for bulk materials

Published By Publication Date Number of Pages
BSI 2021 66
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1.1 This document deals with the technical requirements for stationary belt conveyors and systems as defined in 3.1 to 3.2.4, designed for continuously conveying loose bulk materials. The covered phases of life cycle are design, setting, operation, maintenance and cleaning.

1.2 This document does not cover:

  1. use in coal mining and open cast lignite mining;

  2. use for man-riding;

  3. floating, dredging and ship mounted structures supporting the conveyor;

  4. biological and chemical hazards resulting from handling foodstuffs or pharmaceuticals;

  5. the design of the supporting structure which is not part of a conveyor;

  6. the effects of wind;

  7. hazards resulting from handling specific hazardous materials, (e.g. explosives, radiating material);

  8. hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes or dust;

  9. biological and micro-biological (viral or bacterial) hazards;

  10. hazards caused by the use of ionising radiation sources;

  11. conveyors fitted with a moving belt with other than a continuous rubber or polymeric surface for the conveying medium;

  12. hazards associated with the integration of belt conveyors with other machinery;

The safety requirements of this document apply to equipment and systems placed on the market after the date of publication of this document.

NOTE Directive 2014/34/EC concerning equipment and protective systems intended for operation in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present document is not intended to provide means of complying completely with the essential health and safety requirements of Directive 2014/34/EC.

1.1 This document deals with the technical requirements for stationary belt conveyors and systems as defined in 3.1 to 3.2.4, designed for continuously conveying loose bulk materials. The covered phases of life cycle are design, setting, operation, maintenance and cleaning.

1.2 This document does not cover:

  1. use in coal mining and open cast lignite mining;

  2. use for man-riding;

  3. floating, dredging and ship mounted structures supporting the conveyor;

  4. biological and chemical hazards resulting from handling foodstuffs or pharmaceuticals;

  5. the design of the supporting structure which is not part of a conveyor;

  6. the effects of wind;

  7. hazards resulting from handling specific hazardous materials, (e.g. explosives, radiating material);

  8. hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes or dust;

  9. biological and micro-biological (viral or bacterial) hazards;

  10. hazards caused by the use of ionising radiation sources;

  11. conveyors fitted with a moving belt with other than a continuous rubber or polymeric surface for the conveying medium;

  12. hazards associated with the integration of belt conveyors with other machinery;

The safety requirements of this document apply to equipment and systems placed on the market after the date of publication of this document.

NOTE Directive 2014/34/EC concerning equipment and protective systems intended for operation in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present document is not intended to provide means of complying completely with the essential health and safety requirements of Directive 2014/34/EC.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
12 2 Normative references
14 3 Terms and definitions
20 4 Safety requirements and /or measures for belt conveyors
4.1 General
4.1.1 Introduction
4.1.2 Zone concept
21 4.1.3 Requirements for restricted zone
4.2 Requirements for guards
4.2.1 General
22 4.2.2 Fixed guard
4.2.2.1 General
23 4.2.2.2 Opening(s) in fixed guard
25 4.2.3 Interlocking guard
4.2.4 Inspection cover
4.2.5 Nip guard
28 4.3 Measures for protection against mechanical hazards
4.3.1 General requirements
4.3.2 Crushing and shearing hazards
4.3.2.1 Crushing and shearing points between conveyed material and fixed components of the conveyor
29 4.3.2.2 Raising, lowering, rotating and translating equipment
4.3.2.3 Take-up devices
31 4.3.2.4 Trippers, radial conveyors
4.3.3 Control cabin
4.3.4 Entanglement, drawing-in and trapping hazards
4.3.4.1 General
4.3.4.2 Nip points at pulley and idler
33 4.3.4.3 In-running nips
34 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)
4.3.5.1 Parts of machinery
35 4.3.5.2 Handled materials
4.3.6 Means of access
4.3.6.1 Walkways, control stations and platforms
37 4.3.6.2 Access over the conveyor
38 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
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
39 4.7 Measures for protection against thermal hazards
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
4.8.1 Belt friction
4.8.2 Transported material
40 4.9 Neglected ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities)
4.9.1 Unhealthy postures or excessive efforts
41 4.9.2 Isolated work places
4.10 Measures in case of failure of energy supply and other functional disorders
4.10.1 Uncontrolled motion
4.10.2 Failure or malfunction of safety related parts of control systems
4.10.2.1 Safety devices
4.10.2.2 Control systems
4.10.2.3 Operating modes
42 4.10.2.4 Start function
4.10.2.5 Stop function
4.10.2.6 Emergency stop
43 4.10.2.7 Pull-cord operated emergency stop switch
4.10.2.8 Automatic malfunction detection
44 4.11 Measures for protection against hazards arising during inspection, maintenance and cleaning
4.12 Noise reduction at design stage
45 5 Verification of safety requirements and/or measures
5.1 General
47 5.2 Electrical equipment
5.3 Fire or explosion hazards
6 Information for use
6.1 Instruction handbook
6.1.1 General
48 6.1.2 Instructions for the installation of the equipment
6.1.3 Instructions for the operation of the equipment
49 6.1.4 Noise declaration
6.1.5 Instructions for maintenance
51 6.1.6 Training
6.1.7 Decommissioning and dismantling
6.2 Marking
52 Annex A (informative)List of significant hazards
A.1 General
A.2 Mechanical hazards
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
53 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
A.3.1 Electrical equipment
54 A.3.2 Electrostatic charges
A.4 Thermal hazards
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
A.6.1 Unhealthy posture or excessive efforts
A.6.2 Mental overload or underload
55 A.7 Hazards arising from failure of the energy supply and other functional disorders
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
A.8.1 Mechanical hazards
A.8.2 Hydraulic hazards
A.8.3 Pneumatic hazards
A.9 Hazards arising during inspection, maintenance and cleaning
56 Annex B (normative)Specification or required performance level (PLr)
58 Annex C (normative)Noise Test Code
C.1 General
C.2 Operating conditions during measurements
C.3 Determination of Aā€weighted emission sound pressure level
C.4 Measurement positions
59 C.5 Information to be recorded
C.6 Information to be reported
C.7 Noise emission declaration
60 C.8 Example of noise declaration
61 Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC aimed to be covered

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