BS EN 1755:2015
$198.66
Industrial Trucks. Safety requirements and verification. Supplementary requirements for operation in potentially explosive atmospheres
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 56 |
This European Standard applies to self-propelled and pedestrian propelled manual and semi-manual industrial trucks as defined in ISO 5053‑1 including their load handling devices and attachments (hereafter referred to as trucks) intended for use in potentially explosive atmospheres.
Attachments mounted on the load carrier or on fork arms which are removable by the user are not considered to be a part of the truck.
This European Standard specifies supplementary technical requirements for the prevention of the ignition of an explosive atmosphere of flammable gases, vapours, mists or dusts by industrial trucks of equipment group II and equipment category 2G, 3G, 2D or 3D.
The relationship between an equipment category (hereafter referred to as category) and the corresponding zone (area classification) is shown in informative Annex B.
This European Standard does not include:
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trucks of equipment group I;
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trucks of equipment group II, equipment category 1;
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trucks intended for use in potentially explosive atmospheres with hybrid mixtures;
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protective systems.
This European Standard is not applicable to trucks intended for use in potentially explosive atmospheres of carbon disulphide (CS 2), carbon monoxide (CO) and/or ethylene oxide (C 2H 4O) due to the special properties of these gases.
This standard is applicable to trucks intended for use in atmospheres with an ambient temperature range of – 20 °C to +40 °C, i.e. trucks built in accordance with this European Standard will be satisfactory to any service conditions within this range unless otherwise specified.
The ambient temperature range -20 °C to +40 °C is in line with EN ISO 3691‑1 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | European foreword |
| 6 | Introduction |
| 8 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions |
| 13 | 4 Safety requirements and/or protective measures 4.1 General |
| 14 | 4.2 Hot surfaces 4.2.1 General 4.2.2 Temperature monitoring 4.2.3 Temperature classification |
| 15 | Table 1 — Classification of maximum surface temperatures for trucks of category 3G or 2G 4.3 Safety shutdown 4.4 Mechanically generated sparks 4.4.1 Load handling devices |
| 16 | 4.4.2 Fans 4.4.2.1 Fans of electrical equipment 4.4.2.2 Radiator fans on IC-engines 4.4.2.3 Other fans 4.4.3 Other rotating parts 4.5 Electrical system 4.5.1 General |
| 17 | 4.5.2 Electrical equipment 4.5.2.1 General 4.5.2.2 Electrical equipment for category 3G trucks |
| 18 | 4.5.2.3 Electrical equipment for category 2G trucks 4.5.2.4 Electrical equipment for category 3D and 2D trucks 4.5.3 Electrical system bipolarity 4.5.4 Insulation monitoring 4.5.5 Battery and battery connectors |
| 19 | 4.6 Internal combustion engines 4.7 Electrostatic risks 4.7.1 Bonding 4.7.1.1 General 4.7.1.2 Insulated metal parts |
| 20 | 4.7.2 Circuit resistance 4.7.3 Non-conductive parts 4.7.3.1 Non-conductive parts for category 3G and 2G |
| 21 | 4.7.3.2 Non-conductive parts for category 3D and 2D 4.7.4 Transmission belts 4.7.5 Hydraulic systems |
| 22 | 4.7.6 Castors and wheels 4.7.6.1 General Figure 1 — Projected area of castors or wheels 4.7.6.2 Dissipative castors and wheels |
| 23 | 4.8 Requirements for brakes, clutches and couplings 4.8.1 General 4.8.2 Mechanical clutches0F ) and couplings 4.8.3 Hydrokinetic clutches 4.8.4 Service brakes and friction clutches for category 3G and 3D trucks |
| 24 | 4.8.5 Service brakes and friction clutches for category 2G trucks 4.8.5.1 General 4.8.5.2 Liquid immersion 4.8.5.3 Flameproof enclosure 4.8.5.4 Constructional safety 4.8.6 Service brakes and friction clutches for category 2D trucks |
| 25 | 4.8.7 Parking brakes 4.8.8 Emergency stop brake 4.9 Requirements for pneumatic systems 4.10 Category 3G trucks equipped with restricted breathing enclosures “nR” and gas detection systems 4.10.1 General 4.10.2 Gas detection systems |
| 27 | 4.10.3 Gas sensors 4.10.4 Restricted breathing enclosures “nR” in combination with a gas detection system 4.11 Flammability of non-metallic materials |
| 28 | 5 Verification of safety requirements and/or protective measures 5.1 Determination of the maximum surface temperatures 5.1.1 General 5.1.2 Test conditions 5.1.3 Test procedures 5.1.3.1 Self-propelled trucks with self-propelled lifting power |
| 29 | Figure 2 — Test cycle for trucks |
| 30 | 5.1.3.2 Pedestrian propelled trucks with manually operated lifting function 5.1.3.3 Self-propelled trucks with manually operated lifting function 5.1.3.4 Pedestrian propelled trucks with self-propelled lifting function 5.1.3.5 Test procedure for tractors and burden and personnel carriers Figure 3 — Test cycle for tractors |
| 31 | 5.1.4 Measurements 5.1.5 Acceptance criteria |
| 32 | 5.2 Measurement of circuit resistance and capacitance 5.2.1 Verification and tests of circuit resistance and bonding resistance |
| 33 | Figure 4 — Typical test set up for measuring circuit resistance 5.2.2 Measurement of capacitance of insulated metal parts |
| 34 | 6 Information for use 6.1 General 6.2 Instruction handbook 6.2.1 Operation of the truck 6.2.2 Service and maintenance of the truck |
| 35 | 6.2.3 Additional safety information |
| 36 | 6.2.4 Information for charging of the battery and battery handling 6.3 Marking 6.3.1 General 6.3.2 Minimum marking |
| 37 | 6.3.3 Additional marking according to this standard (Ex – marking) Table 2 — Truck ambient temperature marking 6.4 Warning labels Table 3 — Text of warning labels |
| 38 | Annex A (normative) List of significant hazards Table A.1 — List of significant hazards |
| 39 | Annex B (informative) Relationship between zones (area classification) and truck categories Table B.1 — Relationship between zones and truck categories |
| 40 | Annex C (informative) Typical example of cladding of load handling devices Figure C.1 — Typical example of fork cladding |
| 41 | Annex D (informative) Typical examples of non-conductive surface areas according to 4.7.3.1 Figure D.1 — Acceptable profiled surface for gas group IIA and IIB according to 4.7.3.1 d) |
| 42 | Figure D.2 — Acceptable profiled surface for gas group IIA, IIB, IIB+H2, IIB+C2H2 or IIB+H2+C2H2 according to 4.7.3.1. e) |
| 43 | Figure D.3 — Not acceptable profiled surface according to 4.7.3.1 e) |
| 44 | Annex E (normative) Requirements for transmission belts in accordance with ISO 9563 or ISO 1813 Table E.1 — Transmission belts |
| 45 | Annex F (informative) Significant technical changes between this document and the previous edition of this European Standard Table F.1 — Significant changes |
| 49 | Annex G (informative) Warning labels for trucks with restricted breathing enclosure(s) Figure G.1 — Restricted breathing enclosure label Figure G.2 — Truck label according to 4.10.4 |
| 50 | Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC1F Table ZA.1 — Correspondence between EN 1755:2015 and Directive 94/9/EC |
| 53 | Bibliography |
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