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Description of the dustproof and waterproof grade of the cooling fan

by:TOCH     2021-03-26
There are many products that require cooling fans to be waterproof and dustproof, such as humidifiers, refrigerators, toilets, bathroom products, outdoor products, industrial equipment, etc. For example, what is the IP55 waterproof function, and what do these two 5s represent? The protection grade adopts the IP×× grade standard recommended by the International Electrotechnical Commission (IEC), and the grade is different for different installation places. For details, please refer to the following description for selection. In the grade standard, '××' is a two-digit number, the first digit indicates the protection level against solids, and the second digit indicates the protection level against liquids. There are 7 levels of solid protection level, which are represented by 0-6 respectively; there are 9 levels of liquid protection level, which are represented by 0-8 respectively. Dust protection level 0: no protection 1: prevent large solids from intruding 2: prevent medium-sized solids from entering 3: preventing small solids from entering 4: preventing objects larger than 1mm from entering solids 5: preventing harmful dust accumulation 6: completely preventing dust Into the waterproof level 0: no protection 1: water droplets drip into the shell has no effect 2: when the shell is tilted to 15 degrees, the water droplets drip into the shell without impact 3: water or rain from the 60 degree corner to the shell has no impact 4: liquid Splashing from any direction to the shell will not cause harm. 5: Wash with water without any harm. 6: Can be used in the cabin environment 7: Can be immersed in a short period of time (1m) 8: Long-term immersion under a certain pressure
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