Foreword
This document is drafted in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work, Part 1 Structure and Drafting Rules for Standardization Documents".
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility of identifying patents. This document is proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This document is categorized by the National Automotive Standardization Technical Committee (SAC/TC 114).
1 Scope
This document specifies the basic safety requirements of the electrical system for residential use in travel vehicles, the requirements for protection of personnel from electric shock, and the application of safety requirements. This document applies to the electrical system for living and living purposes in the travel vehicle.
2 Normative reference documents
The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the cited documents, only the date of the corresponding version applies to this document. Not to note the date of the referenced documents, the latest version (including all the change orders) is applicable to this document.
GB/T 156 Standard voltage
GB/T 2099.1 Plugs and sockets for household and similar purposes, Part 1 Requirements
GB/T 2820 (all parts) Reciprocating internal combustion engine driven alternating current generator set
GB/T 2900.1 Electrician terminology basic terms
YGB/T 3730.1 Terminology and definitions of cars, trailers and car trains Part 1: Type
GB 4706 (all parts) Household and similar with the total apparatus of diagnosis of safety
GB4785 Car and trailer exterior lighting and light signal device installation regulations
GB/T 5023.5 Rated voltage 450/750 V and below PVC insulated cable Part 5: Flexible cable (flexible wire)
GB/T 5053.3 Road vehicle tractor and trailer electrical connectors between the definition, test methods and requirements
GB/T 5337 Automotive electrical appliances, lamps and instruments terminology
GB 7258 motor vehicle operating safety technical conditions
GB/T10963.1 Electrical accessories Overcurrent-protected circuit breakers for household and similar premises Part 1: Circuit breakers for AC GB/T 16917.1 Residual current-acting circuit breakers with overcurrent protection for household and similar uses (RCBO) Part 1: General rules
GB/T 20718 Road vehicles tractor and trailer between the electrical connector 12 V13 core type
GB/T 22550 Traveler vehicle terminology and its definition
GB/T 25085.3 Road vehicles Automotive cable part 3: AC 30V or DC 60V single-core copper conductor cable dimensions and requirements
GB/T 25087 Road vehicles round, shielded and unshielded 60 V and 600 V multi-core sheathed cables
GB/T 31465.2 Road vehicle fuse part 2: user's guide
QC/T 1036 Automotive power inverter
QC/T 29106 Automotive wire harness technical conditions
3 Terms and definitions
GB/T 2900,1,GB/T 3730.1,GB/T 5337,GB/T 22550 defined as well as the following terms and definitions are applicable to this document.
4 Security requirements
4.1 Basic safety requirements
4.1.1 AC and DC auxiliary power supply voltage selection should be in line with the GB/T 156 product, the DC voltage introduced into the travel vehicle should not be greater than 60 V, AC electrical system should be used and the national civil grid directly connected to the flat 220 V, 50 Hz system.
4.1.2 electrical equipment should be firmly fixed, should not be due to vehicle bumps and dangerous potential.
4.1.3 AC electrical equipment should be set up safety tips, such as the operation of Nimau label or logo. Power outlets should be clearly marked in the shell or near the maximum current or maximum power.
4.2 Personnel electrocution protection requirements
4.2.1 Direct contact protection
4.2.1.1 Charging interface
External power supply and vehicle docking should use connectors. Connector mounted on the body of the external power input interface for the needle type, should be installed with a protective cover, outside the vehicle docking with the plug of the cable for the hole type. When the vehicle charging socket is disconnected from the charging plug, the voltage of the charged part of the external power input interface shall be reduced to not more than 30 V (AC> or not more than 60 V (DC) within 1 s after disconnection.
4.2.1.2 Equipment shell
Power conversion equipment (inverter, charger, charging inverter, AC transformer, AC-o inverter, etc.) should not be easy to touch. When the power conversion equipment shell is rigid conductive material, the grounding wire of the power conversion equipment should be connected to its own shell.
4.2.1.3 Isolation of multiple power inputs
When an auxiliary power supply, other auxiliary power should be isolated from all live conductors of AC electrical equipment in the vehicle. 4.2.2 Indirect contact protection
4.2.2.1 Insulation resistance
4.3 Application safety requirements
4.3.1 Household appliances
Induction cookers, microwave ovens, water heaters, washing machines and other household appliances installed in the car should meet the requirements of the corresponding part of GB4706, and in the vehicle in the driving state in the off state.
4.3.2 AC socket
The AC socket shall meet the requirements of GB/T 2099.1, and the fire wire and zero wire shall be shuttled into the socket in accordance with the marked hole position.
4.3.3 Driving Safety
For self-propelled RVs, the amount of colorful electricity of living electrical equipment should be reasonably matched with the redundant electricity of the original power system, and the failure of living electrical equipment should not affect the safety of driving.
In addition to the GB4785 provisions of the lamps and lanterns, other installed in the vehicle outside the travel to play a lighting, decorative role of the lamps and lanterns in the vehicle should not be able to light, only in the parking state can be lit through the switch or other conditions.
4.3.4 Auxiliary battery
The positive terminal of the auxiliary battery should be set up with a manual power switch.
Fuse or other over-current protection device should be set at the positive output of the battery. 4.3.5 Cable
The wire used in the vehicle's AC power equipment should comply with the relevant provisions of GB/T 25087.
The accompanying cable should conform to the provisions of GB/T 5023.5, and the selection of the cable diameter should meet the demand for electricity when the vehicle is parked.
The single-core wire in the DC harness should conform to the provisions of GB/T 25085.3, and the wire harness should conform to the provisions of QC/T 29106. Each power circuit should be protected by a suitable fuse at the positive output of the power supply. For different types or power loads, the selection of fuse shall conform to the provisions of GB/T 31465.2.
The battery cable line should be secondarily protected.
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