GB/T 44258-2024Earth-moving machinery - Battery electric wheel loaders for plateau tunnels (English PDF)
土方机械 高原隧道用纯电动轮胎式装载机
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 24, 2024
Implementation date
July 24, 2024
Scope
GB/T 44258-2024 is the English-translated version of 土方机械 高原隧道用纯电动轮胎式装载机.
China's national standard for the battery electric wheel loader built to work inside a tunnel on the high plateau, and it exists because two hard problems meet in the same machine. The first is the tunnel: a diesel loader working a heading burns oxygen and fills a confined space with exhaust, and the ventilation plant that keeps the face breathable is one of the largest costs of driving a tunnel at all. Take the engine out and that cost falls away, along with the noise and the heat. The second is the altitude: above two thousand metres the thin air derates a diesel engine badly, but it also thins the insulation clearances of electrical equipment, changes how air cooling works, and puts the battery through a wide daily temperature swing - which is why the standard leans on the plateau apparatus standard and on the insulation coordination standard rather than treating the machine as an ordinary electric loader. This document specifies the parameters, requirements, inspection rules, signs, packaging, transport and storage of battery electric wheel loaders for plateau tunnels and describes the corresponding test methods. It applies to the manufacture and testing of wheel loaders for plateau tunnels whose operating energy is supplied entirely by an on-board rechargeable energy storage system and whose maximum motor-driven operating voltage falls in class B. This record is drawn from the official English translation issued by the standardization body, not from a translation of our own.
Document preview — GB/T 44258-2024
National Standard of the People's Republic of China
- ICS
- 53.100
- Classification
- P 97
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Parameters
- 5 Requirements
- 5.1 General requirements
- 5.2 Performance requirements
- 5.3 Safety requirements
- 6 Test methods
- 7 Inspection rules
- 8 Signs, packaging, transport and storage
- A Annex A (informative) Main parameters of battery electric wheel loaders
- B Annex B (informative) Battery electric wheel loader test record
- Bibliography
Foreword
SAC/TC 334 is in charge of this English translation. In case of any doubt about the contents of English translation, the Chinese original shall be considered authoritative.
This standard is drafted in accordance with the rules given in the GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent right.
This standard was proposed by China Machinery Industry Federation.
This standard was prepared by SAC/TC 334 National Technical Committee on Earth-moving Machinery of Standardization Administration of China.
1 Scope
China's national standard for the battery electric wheel loader built to work inside a tunnel on the high plateau, and it exists because two hard problems meet in the same machine. The first is the tunnel: a diesel loader working a heading burns oxygen and fills a confined space with exhaust, and the ventilation plant that keeps the face breathable is one of the largest costs of driving a tunnel at all. Take the engine out and that cost falls away, along with the noise and the heat. The second is the altitude: above two thousand metres the thin air derates a diesel engine badly, but it also thins the insulation clearances of electrical equipment, changes how air cooling works, and puts the battery through a wide daily temperature swing - which is why the standard leans on the plateau apparatus standard and on the insulation coordination standard rather than treating the machine as an ordinary electric loader. This document specifies the parameters, requirements, inspection rules, signs, packaging, transport and storage of battery electric wheel loaders for plateau tunnels and describes the corresponding test methods. It applies to the manufacture and testing of wheel loaders for plateau tunnels whose operating energy is supplied entirely by an on-board rechargeable energy storage system and whose maximum motor-driven operating voltage falls in class B. This record is drawn from the official English translation issued by the standardization body, not from a translation of our own.
This document specifies the parameters, requirements, inspection rules, signs, packaging, transport and storage of battery electric wheel loaders for plateau tunnels, and describes the corresponding test methods.
This document is applicable to the manufacturing and detection of wheel loaders for plateau tunnels, with the operation energy fully powered by the on-board rechargeable energy storage system and maximum motor-driven operation voltage classified as class B voltage.
2 Normative references
The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
The documents cited run from GB/T 4208 through the earth-moving machinery series, the electric vehicle and power battery standards and the plateau and low-voltage insulation standards, to JB/T 5947, JB/T 12462 and JB/T 12463; the complete list with the full titles is given under the normative references of this record.
3 Terms and definitions
For the purpose of this document, the terms and definitions given in GB/T 25602, GB/T 25604, GB/T 44254 and the following apply.
3.1 battery electric wheel loader for plateau tunnels: wheel loaders applicable to working in plateau tunnels, with the operation energy fully powered by the on-board rechargeable energy storage system and driven by electric motors.
4 Parameters
The main parameters of battery electric wheel loaders for plateau tunnels (hereinafter referred to as battery electric wheel loaders) are given in Annex A.
5.1 General requirements
5.1.1 Battery electric wheel loaders shall be able to work normally in plateau tunnels under the following conditions: a non-explosive environment; an altitude within the band stated in this clause; an ambient temperature within the range stated in this clause; and a relative humidity not exceeding the value stated there.
5.1.2 The cabs of battery electric wheel loaders shall be equipped with warnings and information indicating the machine conditions, including indicator signal of the machine availability, system fault warning, battery state of charge (SOC), battery voltage, battery temperature, motor speed, and motor temperature.
5.1.3 Battery electric wheel loaders shall be equipped with charging function, and should have battery swapping function.
5.1.4 The motor controller shall conform to the applicable provisions given in GB/T 18488.
5.1.5 The hydraulic system's oil, solid, and particle contamination grade code of battery electric wheel loaders shall not be higher than the code specified in GB/T 14039-2002 and named in this clause.
5.1.6 The transmission system's oil, solid, and particle contamination grade code of battery electric wheel loaders shall not be higher than the code specified in GB/T 14039-2002 and named in this clause.
5.1.7 Heat balance temperatures of all systems of battery electric wheel loaders shall conform to the provisions specified by the manufacturer.
5.1.8 A newly-produced machine shall not have any leakage before leaving the factory.
5.1.9 The power battery performance shall conform to the provisions of GB/T 44257.2.
5.1.10 The operator's manuals of battery electric wheel loaders shall conform to the provisions of GB/T 25622.1.
5.2 Performance requirements
5.2.1 Battery electric wheel loaders shall be able to operate continuously for no less than the time stated in this clause after a full charge or battery-swapping.
5.2.2 The gradeability of battery electric wheel loaders under rated load shall not be less than the value stated in this clause.
5.2.3 The other performance requirements of battery electric wheel loaders shall conform to the provisions given in GB/T 35199-2017, 5.2.5.
5.3 Safety requirements
5.3.1 Access systems: the access systems of battery electric wheel loaders should conform to the provisions given in GB/T 17300.
A Annex A (informative) Main parameters of battery electric wheel loaders
Annex A carries Table A.1, Main parameters of battery electric wheel loaders, which lists the parameters by which a machine of this type is described commercially.
B Annex B (informative) Battery electric wheel loader test record
Annex B carries the two record forms used when the machine is tested: Table B.1, Operation performance test record, and Table B.2, Comprehensive heat balance test record.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 39 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 4208 Degrees of protection provided by enclosure (IP code)Degrees of protection provided by enclosures (IP code)
- GB/T 14711 General requirements for safety of small and medium size rotating electrical machinesGeneral requirements for safety of small and medium size rotating electrical machines
- GB 18384-2020 Electric vehicles safety requirementsElectric vehicles safety requirements
- GB/T 18488 Drive motor system for electric vehiclesDrive motor systems for electric vehicles
- GB/T 18826 1,1,1,2-Tetrafluoroethane (HFC-134a) for industrial use1,1,1,2-Tetrafluoroethane(HFC-134a) for industrial use
- GB/T 20645-2021 Specific environmental condition - Technical requirements of low-voltage apparatuses for plateauSpecific environmental condition—Technical requirements of low-voltage apparatuses for plateau
GB/T 5226.1 Electrical safety of machinery-Electrical equipment of machines - Part 1: General requirements · GB/T 6375 Earth-moving machinery - Method of test for the measurement of drawbar pull · GB/T 8419 Earth-moving machinery - Laboratory evaluation of operator seat vibration · GB/T 8499 Earth-moving machinery - Method for locating the centre of gravity · GB/T 8592 Earth-moving machinery - Determination of turning dimensions of wheeled machines · GB/T 8595 Earth-moving machinery - Operator's controls · GB/T 10175.1 Earth-moving machinery - Loaders and backhoe loaders - Part 1: Calculation of rated operating capacity and test method for verifying calculated tipping load · GB/T 10175.2 Earth-moving machinery - Loaders and backhoe loaders - Part 2: Test method for measuring breakout forces and lift capacity to maximum lift height · GB/T 10913 Earth-moving machinery - Determination of ground speed · GB/T 14039-2002 Hydraulic fluid power - Fluids-Method for coding the level of contamination by solid particles · GB/T 16935.1-2023 Insulation coordination for equipment within low-voltage supply systems - Part 1: Principles, requirements and tests · GB/T 16937 Earth-moving machinery - Operator's field of view - Test method and performance criteria · GB/T 17771 Earth-moving machinery - Falling-object protective structures - Laboratory tests and performance requirements · GB/T 17921 Earth-moving machinery - Seat belts and seat belts anchorages - Performance requirements and tests · GB/T 17922 Earth-moving machinery - Roll-over protective structures - Laboratory tests and performance requirements · GB/T 19932-2005 Earth-moving machinery - Hydraulic excavators - Laboratory tests and performance requirements for operator protective guards · GB/T 19933.2 Earth-moving machinery - Operator enclosure environment - Part 2: Air filter element test method · GB/T 19933.3 Earth-moving machinery - Operator enclosure environment - Part 3: Pressurization test method · GB/T 19933.4 Earth-moving machinery - Operator enclosure environment - Part 4: Heating, ventilation and air conditioning (HVAC) test method and performance · GB/T 19933.5 Earth-moving machinery - Operator enclosure environment - Part 5: Windscreen defrosting system test method · GB/T 20178 Earth-moving machinery - Machine safety labels-General principles · GB/T 20418-2011 Earth-moving machinery - Lighting, signalling, and marking lights, and reflex-reflector devices · GB/T 20953 Tractors and machinery for agriculture and forestry - Determination of burning behavior of cab interior materials · GB/T 21152-2018 Earth-moving machinery - Wheeled or high-speed rubber-tracked machines - Performance requirements and test procedures for brake system · GB/T 21153 Earth-moving machinery - Units for dimensions, performance and capacities, and their measurement accuracies · GB/T 21154 Earth-moving machinery - Methods of measuring the masses of whole machines, their equipment and components · GB/T 21155 Earth-moving machinery - Machine-mounted audible travel alarms and forward horns-Test methods and performance criteria · GB/T 21942 Earth-moving machinery - Loader and front loading excavator buckets-Volumetric ratings · GB/T 22358 Earth-moving machinery - Preservation and storage · GB/T 22359.1 Earth-moving and building construction machinery - Electromagnetic compatibility (EMC) of machines with internal electrical power supply - Part 1: General EMC requirements under typical electromagnetic environmental conditions · GB/T 25602 Earth-moving machinery - Machine availability - Vocabulary · GB/T 25604 Earth-moving machinery - Loaders-Terminology and commercial specifications · GB/T 25606 Earth-moving machinery - Product identification numbering system · GB/T 25614 Earth-moving machinery - Determination of sound power level - Dynamic test conditions · GB/T 25615 Earth-moving machinery - Determination of emission sound pressure level at operator's position - Dynamic test conditions · GB/T 25622.1 Earth-moving machinery - Operator's manual - Part 1: Contents and format · GB/T 25684.3-2021 Earth-moving machinery - Safety - Part 3: Requirements for loaders · GB/T 25685.1 Earth-moving machinery - Field of vision of surveillance and rear-view mirrors - Part 1: Test methods · GB/T 25685.2 Earth-moving machinery - Field of vision of surveillance and rear-view mirrors - Part 2: Performance criteria · GB/Z 26139 Earth-moving machinery - Guidelines for assessment of exposure to whole-body vibration of ride-on machines - Use of harmonized data measured by international institutes, organizations and manufacturers · GB/T 32070 Earth-moving machinery - Object detection systems and visibility aids - Performance requirements and tests · GB/T 38943.1-2020 Earth-moving machinery - Electrical safety of machines utilizing electric drives and related components and systems - Part 1: General requirements · GB/T 38943.3 Earth-moving machinery - Electrical safety of machines utilizing electric drives and related components and systems - Part 3: Particular requirements for self-powered machines · JB/T 5947 Construction machinery - General specifications for packing · JB/T 12462 Wheel loaders - Accelerated reliability test specification · JB/T 12463 Wheel loaders - Reliability test procedures, failure classification and evaluation
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