GB/T 41134.1-2021 PDF English

GB/T41134.1-2021 (GBT41134.1-2021): PDF in English

GB/T 41134.1-2021 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.070 CCS K 82 Fuel Cell Power Systems for Industrial Electric Trucks - Part 1: Safety (IEC 62282-4-101:2014, Fuel Cell Technologies - Part 4-101: Fuel Cell Power Systems for Propulsion other than Road Vehicles and Auxiliary Power Unit (APU) - Safety of Electrically Powered Industrial Trucks, MOD) ISSUED ON: DECEMBER 31, 2021 IMPLEMENTED ON: JULY 1, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 4  Introduction ... 7  1 Scope ... 8  2 Normative References ... 9  3 Terms and Definitions ... 13  4 Structural Safety Requirements... 17  4.1 General Rules ... 17  4.2 Components Bearing Hydrogen and Other Fluids ... 18  4.3 Overpressure and Thermal Protection ... 21  4.4 Regulating Valve ... 21  4.5 Shut-off Valves and Operating Procedures ... 21  4.6 Filters ... 22  4.7 Pumps and Compressors ... 22  4.8 Electrically Controlled Pressure Sensors and Control Equipment ... 22  4.9 Ventilation Measures ... 22  4.10 Electrostatic Discharge (ESD) ... 23  4.11 Discharge of Methanol and Wastes ... 23  4.12 System Enclosure (self-contained system) ... 23  4.13 Electrical Components of Fuel Cell Power System ... 24  4.14 Control Circuits ... 30  4.15 Safety / Hazard Analysis ... 31  4.16 Insulation Resistance ... 31  4.17 Requirements for Vibration Resistance ... 31  5 Safety Performance Requirements and Type Test ... 31  5.1 General Rules ... 31  5.2 Vibration Test ... 32  5.3 Fuel Container Stability Test ... 32  5.4 Fatigue Test ... 33  5.5 External Leakage Test ... 33  5.6 Ultimate Strength Test ... 34  5.7 Potential Failure Mode Test ... 35  5.8 Temperature Test ... 36  5.9 Connection Test ... 38  5.10 Touch Current Test ... 38  5.11 Insulation and Voltage Resistance Test ... 40  5.12 Electrostatic Accumulation Test of Non-metallic Pipeline ... 40  5.13 Power Limiting Circuit Test ... 41  5.14 Maximum Power Test ... 42  5.15 Abnormal Operation Test (failure of electrical equipment) ... 43  5.16 Wastewater Discharge Test (for methanol fuel cells only) ... 44  5.17 Rain Drop Test ... 44  5.18 System Enclosure Test (self-contained system) ... 44  5.19 Needle Flame Test for Thermoplastic Materials ... 45  5.20 Tests of Elastomeric Seals, Gaskets and Piping ... 45  5.21 Permeation Test of Non-metallic Pipes and Piping ... 46  5.22 Electrical Output Lead Test ... 46  6 Routine Tests ... 47  6.1 Insulation and Voltage Resistance Test ... 47  6.2 External Leakage Test ... 47  7 Marking ... 47  7.1 General Rules ... 47  7.2 Marking of Power Generation System ... 47  7.3 Marking of Components ... 48  8 Instructions for Use ... 48  8.1 Overview ... 48  8.2 Maintenance Manual ... 49  8.3 Operating Procedures ... 49  8.4 Installation Instructions ... 50  Appendix A (informative) Differences in Normative References between this Document and IEC 62282-4-101:2014 ... 51  Appendix B (informative) Comparison of Pressure Clauses ... 56  Bibliography ... 57  Fuel Cell Power Systems for Industrial Electric Trucks - Part 1: Safety 1 Scope This document specifies the safety requirements for the fuel cell power systems for industrial electric trucks. This document applies to industrial electric trucks using gaseous hydrogen fuel cell power systems and direct methanol fuel cell power systems. This document applies to fuel cell-driven industrial trucks used for handling, ejecting, pulling, lifting, stacking or piling up various goods, such as: forklifts and single-bucket loaders, etc. This document applies to the fuel cell power systems defined in 3.8 and Figure 1. This document applies to DC fuel cell power systems with a rated output voltage not exceeding 150 V for indoor and outdoor use. For the fuel cell power systems involved in this document, the fuel source container is permanently attached to the industrial trucks or the fuel cell power systems. Within the scope of this document, the following fuels are considered: ---gaseous hydrogen; ---methanol. Within the scope of this document, the following contents are not included: ---removable fuel source containers; ---hybrid industrial trucks containing internal combustion engines; ---fuel cell power systems with reformers; ---fuel cell power systems for operation in potentially explosive atmospheres; ---fuel storage systems using liquid hydrogen. GB/T 35544-2017 Fully-wrapped Carbon Fiber Reinforced Cylinders with an Aluminum Liner for Theon-board Storage of Compressed Hydrogen as a Fuel for Land Vehicles GB/T 37499-2019 Safety and Control Devices for Gas Burners and Gas-burning Appliances - Particular Requirements - Automatic and Semi-automatic Valves (ISO 23551-1:2012, MOD) ISO 1421 Rubber-or Plastics-coated Fabrics - Determination of Tensile Strength and Elongation at Break ISO 4038 Road Vehicles - Hydraulic Braking Systems - Simple Flare Pipes, Tapped Holes, Male Fittings and Hose End Fittings ISO 10380 Pipework - Corrugated Metal Hoses and Hose Assemblies ISO 10442 Petroleum, Chemical and Gas Service Industries - Packaged, Integrally Geared Centrifugal Air Compressors ISO 10806 Pipework - Fittings for Corrugated Metal Hoses ISO 11114-4 Transportable Gas Cylinders - Compatibility of Cylinder and Valve Materials with Gas Contents - Part 4: Test Methods for Selecting Metallic Materials Resistant to Hydrogen Embrittlement ISO 13226 Rubber - Standard Reference Elastomers (SREs) for Characterizing the Effect of Liquids on Vulcanized Rubbers ISO 14113 Gas Welding Equipment - Rubber and Plastics Hose and Hose Assemblies for Use with Industrial Gases up to 450 Bar (45 MPa) ISO 15500-12 Road Vehicles - Compressed Natural Gas (CNG) Fuel System Components - Part 12: Pressure Relief Valve (PRV) ISO/TR 15916 Basic Considerations for the Safety of Hydrogen Systems ISO 15649 Petroleum and Natural Gas Industries - Piping IEC 60695 (all parts) Fire Hazard Testing IEC 60730-1:2013 Automatic Electrical Controls - Part 1: General Requirements IEC 61204-7 Low-voltage Switch Mode Power Supplies - Part 7: Safety Requirements IEC/TS 61430 Secondary Cells and Batteries - Test Methods for Checking the Performance of Devices Designed for Reducing Explosion Hazards - Lead-acid Starter Batteries IEC 62103 Electronic Equipment for Use in Power Installations 3 Terms and Definitions The following terms and definitions are applicable to this document. 3.1 Abnormal Operation Abnormal operation means the fuel cell power system operates in the event of failure of any electrical or control component, or in any of the failure modes identified by the failure mode and effect analysis (FMEA) procedure, excluding accidental rupture or damage to flammable liquids, vapor and / or gas containers. 3.2 Bonding Bonding refers to a permanent connection to metal parts to form a positively conductive path that provides electrical connection between non-current-carrying metal parts and is capable of conducting any fault currents that may occur. NOTE: it is applicable to the connection inside the fuel cell power system, and between the fuel cell power system and the vehicle, and does not involve measures like grounding the vehicle itself through the grounding terminal or tires. Any active modes, such as: clips, rivets, bolts, screws, welded or brazed joints, or closed loop connectors secured with screws are acceptable. 3.3 Check-valve Check-valve refers to a valve, with the opening and closing parts (valve clack) automatically prevent the reverse flow of the medium by means of the force of the medium. [source: GB/T 21465-2008, 2.2.1.8] 3.4 Circuit, Limited Power Circuit, limited power refers to a circuit with a peak voltage greater than AC 42.4 V (30 V r.m.s.) or a DC voltage greater than 60 V, and the power after running for 60 s complies with the values in Table 2B and Table 2C in GB 4943.1-2011. NOTE: in accordance with GB 4943.1-2011, low-voltage circuit under normal and single-fault conditions is known as safety extra-low voltage circuit (SELV). 3.5 Low-voltage Circuit Low-voltage circuit refers to a circuit composed of batteries, fuel cells and transformers, or a system composed of transformers and fixed impedances, whose peak open-circuit voltage is less than AC 42.4 V (30 V r.m.s.) or DC voltage is less than 60 V, the maximum volt-ampere is less than 100 VA, and the maximum secondary output is AC 30 V, which complies with the requirements of GB/T 19212.1-2016. 3836.14-2014. 3.12 Integral Integral refers to part of a fuel cell power system that may be located inside or outside the system. 3.13 Lower Flammability Limit; LFL Lower flammability limit refers to the lowest concentration of fuel in a fuel-air mixture that can be ignited. NOTE: if the ignition source can cause combustion, then, the fuel-air mixture is flammable. It is primarily the fuel-air mixture ratio or composition. Mixture concentrations below the lower flammability limit (LFL) or above the upper flammability limit (UFL) in critical proportions will not cause combustion. 3.14 Maximum Allowable Working Pressure; MAWP Maximum allowable working pressure refers to the maximum pressure, at which, the fuel cell or fuel cell power system can operate. NOTE 1: see the comparison table of pressure clauses in Appendix B. NOTE 2: the maximum allowable working pressure is expressed in (Pa). NOTE 3: the maximum allowable working pressure is used to determine the pressure setting of the pressure limiting / relief device; the pressure relief device is installed to protect the components or the system in the event of accidental excessive overpressure. [source: GB/T 28816-2020, 3.86.3, modified] 3.15 Maximum Continuous Load Rating Maximum continuous load rating refers to the maximum continuous power that the fuel cell power s.......
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