IP67 automotive high-voltage cables usher in a new era of full-scenario protection

China [CN]

From a technical perspective, IP is the abbreviation of Ingress Protection. The IPXX standard is a form of representation of safety protection levels, which mainly targets the degree of protection of the housing of electrical equipment against foreign objects. In the IP protection level, XX usually consists of two numbers. The first number represents the level of dustproof and foreign object intrusion prevention of the equipment; the second number represents the sealing degree of the equipment against water intrusion, and the larger the number, the higher the protection level and the better the protection performance.

The high-voltage wiring harness of electric vehicles has a special use environment and has certain requirements for dustproof and water-proof. The IP level is the industrial protection level, that is, the dustproof effect. According to the information provided by the electric vehicle connection solution provider of the cable manufacturer, the plug-in protection level of its high-voltage wiring harness of electric vehicles is IP67. What is the concept of IP67 protection level? The number 6 represents the protection level of solid particles. In layman's terms, it is the dustproof effect. 6 is generally the highest, which is enough to block the entry of dust. The second digit after IP represents the waterproof level. The highest level is 8, which is also the highest protection level in the wiring harness industry. Therefore, IP67 dust and water resistance is actually very high in theory, which means that dust cannot enter from the outside at all. Water resistance level 7 has also reached a high waterproof level. The specific test standard is to immerse it in water for 30 minutes at a position one meter below the surface. If there is no water during this process, it means that the product is qualified.

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