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BS EN 1755:2024 – TC

BS EN 1755:2024 – TC

$258.95

Tracked Changes. Industrial trucks. Safety requirements and verification. Supplementary requirements for operation in potentially explosive atmospheres

Published By Publication Date Number of Pages
BSI 2024 141
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This document is applicable to self-propelled and pedestrian propelled manual and semi-manual industrial trucks as defined in ISO 5053-1:2020 including their load handling devices and attachments (hereafter referred to as trucks) intended for use in potentially explosive atmospheres. NOTE 1 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 document 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. NOTE 2 The relationship between an equipment category (hereafter referred to as category) and the corresponding zone (area classification) is shown in informative Annex B. This document does not apply to: – trucks of equipment group I; – trucks of equipment group II, equipment category 1; – trucks intended for use in potentially explosive atmospheres with hybrid mixtures; – protective systems. This document does not apply to trucks intended for use in potentially explosive atmospheres of carbon disulfide (CS2), carbon monoxide (CO) and/or ethylene oxide (C2H4O) due to the special properties of these gases. Technical requirements relating to lithium-ion batteries and fuel cells as energy sources are not given in this document due to their specific hazards.

PDF Catalog

PDF Pages PDF Title
1 30485992
82 A-30431224
83 undefined
92 1 Scope
2 Normative references
95 3 Terms and definitions
98 4 Safety requirements and/or protective measures
4.1 General
99 4.2 Hot surfaces
4.2.1 General
4.2.2 Temperature monitoring
100 4.2.3 Temperature classification
4.3 Safety shutdown
101 4.4 Mechanically generated sparks
4.4.1 Load handling devices
4.4.2 Fans of electrical equipment
4.4.3 Radiator fans on IC-engines
4.4.4 Other fans
102 4.4.5 Other rotating parts
4.5 Electrical system
4.5.1 General
103 4.5.2 Electrical equipment
4.5.2.1 General
4.5.2.2 Electrical equipment for category 3G trucks
104 4.5.2.3 Electrical equipment for category 2G trucks
4.5.2.4 Electrical equipment for category 3D trucks
4.5.2.5 Electrical equipment for category 2D trucks
4.5.3 Electrical system bipolarity
4.5.4 Insulation monitoring
105 4.5.5 Battery and battery connectors
4.6 Category 3G trucks equipped with restricted breathing enclosures ā€œnRā€ and gas detection systems
4.6.1 General
4.6.2 Gas detection systems
107 4.6.3 Gas sensors
4.6.4 Restricted breathing enclosures ā€œnRā€ in combination with a gas detection system
108 4.7 Internal combustion engines
4.8 Electrostatic risks
4.8.1 Bonding
4.8.1.1 General
4.8.1.2 Insulated metal parts
109 4.8.2 Circuit resistance
4.8.3 Non-conductive parts
4.8.3.1 Non-conductive parts for category 3G and 2G
110 4.8.3.2 Non-conductive parts for category 3D and 2D
4.8.4 Transmission belts
4.8.5 Hydraulic systems
111 4.8.6 Castors and wheels
4.8.6.1 General
112 4.8.6.2 Dissipative castors and wheels
4.9 Requirements for brakes, clutches and couplings
4.9.1 General
4.9.2 Mechanical clutches and couplings
4.9.3 Hydrokinetic clutches
4.9.4 Service brakes and friction clutches for category 3G and 3D trucks
113 4.9.5 Service brakes and friction clutches for category 2G trucks
4.9.5.1 General
4.9.5.2 Liquid immersion
4.9.5.3 Flameproof enclosure
4.9.5.4 Constructional safety
4.9.6 Service brakes and friction clutches for category 2D trucks
114 4.9.7 Parking brakes
4.9.8 Emergency stop brake
4.10 Requirements for pneumatic systems
4.11 Flammability of non-metallic materials
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
115 5.1.3 Test procedures
5.1.3.1 Self-propelled trucks with self-propelled lifting power including driverless trucks
116 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, burden and personnel carriers including driverless
117 5.1.4 Measurements
118 5.2 Measurement of circuit resistance and capacitance
5.2.1 Verification and tests of circuit resistance and bonding resistance
119 5.2.2 Measurement of capacitance of insulated metal parts
6 Information for use
6.1 General
120 6.2 Instruction handbook
6.2.1 Operation of the truck
6.2.2 Service and maintenance of the truck
121 6.2.3 Additional safety information
122 6.2.4 Information for charging of the battery and battery handling
6.3 Marking
6.3.1 General
6.3.2 Minimum marking
123 6.3.3 Additional marking according to this document (Ex – marking)
124 6.4 Warning labels
125 Annex A (normative)List of significant hazards
126 Annex B (informative)Relationship between zones (area classification) and truck categories
127 Annex C (informative)Typical example of cladding of load handling devices
129 Annex D (informative)Typical examples of non-conductive surface areas according to 4.8.3.1
132 Annex E (normative)Requirements for transmission belts in accordance with ISO 9563:2015 or ISO 1813:2014
133 Annex F (informative)Significant technical changes between this document and the previous edition of this European Standard
134 Annex G (informative)Warning labels for trucks with restricted breathing enclosure(s) in combination with gas detection system
135 Annex ZA (informative)Relationship between this European Standard and the essential Health and Safety Requirements of Directive 2014/34/EU aimed to be covered

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BS EN 1755:2024 - TC
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