Introduction to the connection and wiring regulations for automotive high-voltage cables

China [CN]

Product Overview: The connection and wiring regulations for automotive high-voltage cables (i.e. high-voltage wiring harnesses) are an important part of ensuring the safe and efficient operation of new energy vehicles. The following is a detailed introduction to the connection and wiring regulations for automotive high-voltage cables:

Description: The design specifications for high-voltage wiring harnesses in automobile manufacturing are an important and complex task, involving multiple technical details and safety requirements. A series of regulations and standards must be followed during the design process.

First, the definition of working voltage and high voltage: The working voltage refers to the highest voltage value that may be generated by the electrical system under normal working conditions. The definition of high voltage is based on the voltage level. For electric vehicles, the voltage level is Class B, specifically DC60V to DC1000V, and AC25V to AC660V between 15HZ and 150Hz;

Among them, high-voltage systems and live parts: All components directly or indirectly connected to the high-voltage circuit are defined as high-voltage systems, including wiring harnesses (cables and plug-ins) and various equipment (such as loads, generators, and energy storage systems). Live parts refer to conductors or conductor parts that are energized during normal use;

In summary, the design specifications for high-voltage wiring harnesses for electric vehicles are a complex and detailed set of technical requirements, from the definition of the operating voltage to the specific performance requirements, to the specific inputs and outputs of the design, each link must be strictly followed to ensure the safety and functionality of the electric vehicle. In addition, the convenience of actual assembly and maintenance, as well as the performance stability and safety under extreme conditions, must also be considered.

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