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Detailed description of IPX9 level in waterproof level
How many waterproof grades are there? This is a question that many people want to understand. According to the national standard "GB4208-2017 IP Code for Shell Protection Level", the waterproof level can be divided into 9 levels, namely IPX1-IPX9.
The 9-level waterproof rating was officially implemented in February 2018, mainly to stipulate the performance of the product shell against high temperature and high pressure spray, and to explain the test conditions for preventing high temperature and high pressure spray.
According to the new national standard "GB4208-2017 IP Code for Enclosure Protection Grade" (replaces GB4208-2008), the IPX9 waterproof test requires the water temperature to be heated to about 80°C. According to the size of the housing, the test requirements are different.
For small samples, the IPX9 waterproof test time is 30S for each location. The speed requirement is 5±1r/min. For large samples, the test distance (nozzle from the sample surface) is 175±25mm. If the distance is too far, the pressure of spraying water to the sample is not enough, and the distance is too close, and the spraying area is not enough to spray water completely.
How to achieve IPX9 waterproof level test? Because this is a high temperature and high pressure waterproof test, it is recommended that you use a box-type testing instrument.
The inside of the box is recycled water, and there is a special heating device. Through the operating system independently developed by Yuexin, accurate flow and pressure can be achieved, and the temperature can be strictly controlled at about 80°C to ensure that it can meet the requirements of GB4208-2017.
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This article is an original article by Guangzhou Yuexin Test Equipment Co., Ltd., and may not be reproduced without permission.