Connection cable is an important carrier for carrying data and power exchange, and its waterproof performance directly affects the function and service life of the product.　With the rapid development of modern society and the continuous progress of science and technology, people are more and more concerned about the safety of various electronic products, the quality and functionality of electronic products are increasingly demanding, and the connection line as equipment and equipment, equipment and machines, machines and machines carrying data and power exchange between the carrier, its importance is self-evident. The waterproof requirements of electronic products has become one of the basic elements of the quality of more and more electronic products, especially the connection device carrying wired transmission of data and power, it has a waterproof *** bad directly affect the function and life of the product.

According to IEC 60529 and QB/T 1898 standards, the waterproof connection cable can be divided into the following grades:

IPX-0 has no waterproof protection, there is no waterproof protection requirement for the product.

IPX-1 requirement: the connection cable can provide waterproof protection equivalent to 3-5 mm/min rainfall for 10 minutes without leakage under normal operating conditions.

IPX-2 requirements: The level is basically the same as IPX-1, but can pass a waterproof test of 15 degrees upward in all directions without leakage.

IPX-3 requirements: 60-degree angle splash waterproof protection, provides 2-5 minutes of 10 liters per second flow rate and 80-100n/m pressure waterproof protection does not leak.

IPX-4 requirements: the level is basically the same as IPX-3, but can provide *** and angle of splash waterproof protection does not leak.

IPX-5 requirements: *** and angle of the waterproof protection, provide 2-3 minutes of 12.5 liters / second flow rate and 30n / m pressure of waterproof protection does not leak.

IPX-6 requirements: Waterproof protection against large waves, lasting 2-3 minutes against a depth of 3 meters underwater, with a flow rate of 100 liters per minute and a pressure of 100 n/m without leakage.

IPX-7 requirements: submersible 1 m can be submerged for 30 minutes without leakage.

IPX-8 requirement: *** waterproof, can be used continuously under water for a long time without leakage.

IP69K requirement: able to withstand the hot steam flush test as defined in EN60529 and DIN40050-9.

For different levels of waterproof, international and domestic standards have corresponding waterproof test methods and specifications, such as GB 4208-2008/IEC 60529-2001 "shell protection level (IP code)" standard requirements. Today most of the connection line manufacturing enterprises are still stuck in the initial understanding of the connection line waterproof stage, but a few *** manufacturing waterproof connection line enterprises have made the connection line waterproof level of the corresponding standards and applications.

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