The protection level is usually expressed by IP followed by two numbers. The numbers are used to clarify the level of protection. The first number indicates the range of the device’s resistance to dust, I represents the level of protection against the entry of solid foreign objects, the highest level is 6; the second number indicates the degree of waterproofing. P represents the level of protection against water intrusion, with the highest level being 8. For example, the protection level of cooling fans is IP54. Among cooling fans, IP54 is the most basic waterproof level, referred to as three-proof paint. The process is to impregnate the entire PCB board. Now the highest waterproof level that cooling fans can achieve is IP68, which is vacuum coating or The glue is completely isolated from the outside world.
Dustproof level
0. No protection No special protection
1. Prevent the intrusion of objects larger than 50mm. Prevent the human body from accidentally touching the internal parts of the fan. Prevent the intrusion of objects larger than 50mm in diameter.
2. Prevent the intrusion of objects larger than 12mm and prevent fingers from touching the internal parts of the fan.
3. Prevent the intrusion of objects larger than 2.5mm. Prevent the intrusion of tools, wires or objects with a diameter larger than 2.5mm.
4. Prevent the intrusion of objects larger than 1.0mm. Prevent the intrusion of mosquitoes, flies, insects or objects with a diameter larger than 1.0mm.
5 Dustproof It is impossible to completely prevent dust intrusion, but the amount of dust intrusion will not affect the normal operation of the electrical
6 Dustproof Completely prevent dust intrusion
Waterproof level
0.No protection No special protection
1. Prevent the intrusion of dripping water. Prevent vertical dripping water droplets.
2 When the fan is tilted 15 degrees, it can still prevent dripping water from intruding. When the fan is tilted 15 degrees, it can still prevent dripping water.
3. Prevent the intrusion of sprayed water, prevent rainwater, or water sprayed from a vertical angle less than 50 degrees.
4. Prevent the intrusion of splashing water and the intrusion of water splashing from all directions.
5. Prevent the intrusion of water from large waves and the intrusion of water from large waves or rapid spray holes.
6. Prevent the intrusion of water from large waves. If the fan intrudes into the water, it can still ensure the normal operation of the fan under certain conditions of time or water pressure.
7. Prevent water intrusion. The fan can be submerged in water indefinitely under certain water pressure conditions and ensure the normal operation of the fan.
8 Prevent the effects of sinking