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BS EN IEC 62282-4-101:2022 – TC:2023 Edition

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Tracked Changes. Fuel cell technologies – Fuel cell power systems for electrically powered industrial trucks. Safety

Published By Publication Date Number of Pages
BSI 2023 147
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This document deals with safety of fuel cell power systems for propulsion other than road vehicles and auxiliary power units (APU). This part of IEC 62282 covers safety requirements for fuel cell power systems intended to be used in electrically powered industrial trucks as defined in ISO 5053-1, except for: – rough-terrain trucks; – non-stacking low-lift straddle carriers; – stacking high-lift straddle carriers; – rough-terrain variable-reach trucks; – slewing rough-terrain variable-reach trucks; – variable-reach container handlers; – pedestrian propelled trucks. This document applies to gaseous hydrogen-fuelled fuel cell power systems and direct methanol fuel cell power systems for electrically powered industrial trucks. The following fuels are considered within the scope of this document: – gaseous hydrogen; – methanol. This document covers the fuel cell power system as defined in 3.8 and Figure 1. This document applies to DC type fuel cell power systems, with a rated output voltage not exceeding 150 V DC for indoor and outdoor use. This document covers fuel cell power systems whose fuel source container is permanently attached to either the industrial truck or the fuel cell power system. In accordance with IEC Guide 116, significant hazards, hazardous situations and events dealt with in this document are shown in Annex B. The following are not included in the scope of this document: – detachable type fuel source containers; – hybrid trucks that include an internal combustion engine; – reformer-equipped fuel cell power systems; – fuel cell power systems intended for operation in potentially explosive atmospheres; – fuel storage systems using liquid hydrogen. [Figure 1]

PDF Catalog

PDF Pages PDF Title
84 undefined
89 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
95 English
CONTENTS
98 FOREWORD
100 INTRODUCTION
101 1 Scope
102 2 Normative references
Figures
Figure 1 – Fuel cell power systems for industrial trucks
106 3 Terms and definitions
109 4 Construction requirements for safety
4.1 General
110 4.2 Hydrogen and other fluid containing parts
4.2.1 General
4.2.2 Piping, hoses, tubing and fittings
111 4.2.3 Hydrogen pressure vessels
112 4.2.4 Metal hydride container
4.2.5 Methanol fuel tank
4.3 Refueling
4.4 Over-pressure and thermal protection
113 Figure 2 – Example of a diagram with vent system coveringcomponents downstream of the regulator
Figure 3 – Example of a diagram with vent system covering all components
114 4.5 Regulators
4.6 Operating and shut-off valves
4.7 Filters
4.8 Pumps and compressors
Figure 4 – Example of a diagram with vent system covering all components in a multiple storage vessel system
115 4.9 Electrically operated pressure sensing and controlling devices
4.10 Ventilation to prevent the build up of flammable gases
116 4.11 Electrostatic discharge (ESD)
4.12 Discharges including methanol emissions and waste materials
4.13 Enclosures
117 4.14 Electrical system
4.14.1 General
4.14.2 Internal wiring
118 4.14.3 External wiring
4.14.4 Emergency switching off requirements (disconnection) for connections for fuel cell power system
Tables
Table 1 – Appliance-wiring material
119 4.14.5 Motors
4.14.6 Switches and motor controllers
4.14.7 Transformers and power supplies
4.14.8 Inverters, converters and controllers
4.14.9 Lamps and lampholders
120 4.14.10 Energy storage components
4.14.11 Electrical insulation
121 4.14.12 Limited power circuit
4.14.13 Electrical spacings
122 4.14.14 Separation of circuits
Table 2 – Spacings
123 4.15 Control circuits
4.15.1 Safety controls
4.15.2 Start
4.15.3 Drive off
4.15.4 Emergency stop
4.16 Risk assessment and risk reduction
124 5 Performance requirements for safety and type tests
5.1 General
5.2 Vibration test
5.2.1 General
5.2.2 Vertical axis test
5.2.3 Longitudinal and lateral axes tests
5.3 Fuel container securement test
125 5.4 Endurance test
5.5 External leakage test
5.6 Dilution test
5.6.1 Releases
5.6.2 Setup and operation
5.6.3 Exhaust dilution
5.6.4 Dilution boundaries
5.7 Ultimate strength test
126 5.8 Potential failure modes test
5.9 Temperature test
127 Table 3 – Temperature rise limits
128 5.10 Continuity test
5.11 Non-metallic tubing test for accumulation of static electricity
5.11.1 Passing criteria
5.11.2 Test method
129 5.12 Dielectric voltage – Withstand test
5.13 Limited power circuit test
130 5.14 Rated power output test
5.15 Abnormal operation test – Electric equipment failures
Table 4 – Limits for inherently limited power sources
Table 5 – Limits for power sources not inherently limited (overcurrent protection required)
131 5.16 Emission of effluents test (only for methanol fuel cells)
5.17 Environmental test
5.17.1 Rain test
Table 6 – Emission rate limits
132 5.17.2 Test of equipment – Exposure to wind
5.18 Enclosure tests
5.18.1 Enclosure loading test
5.18.2 Test for thermoplastic enclosures
133 5.19 Marking plate adhesion test
5.20 Test for elastomeric seals, gaskets and tubing
5.20.1 General
5.20.2 Accelerated air-oven ageing test
5.20.3 Cold temperature exposure test
5.20.4 Immersion test
134 5.21 Test for permeation of non-metallic tubing and piping
5.22 Test for electrical output leads
5.23 Emergency stop
6 Routine tests
6.1 External leakage
6.2 Dielectric voltage-withstand test
7 Markings
135 8 Instructions
8.1 General
136 8.2 Maintenance instructions
8.3 Operating instructions
137 8.4 Installation instructions
138 Annex A (informative) Comparison of pressure terms
Table A.1 – Comparison table of pressure terms
139 Annex B (informative) Significant hazards, hazardous situations and events dealt with in this document
141 Bibliography
BS EN IEC 62282-4-101:2022 - TC
$280.87