The waterproof grade of cooling fan is ipxx

For some products, the cooling fan is required to be waterproof. For example, the cooling fan is required to reach IP67. In fact, this is about two protection requirements. The first 6 refers to the dust-proof level, and the last 7 refers to the waterproof level. Therefore, if the cooling fan is only required to be waterproof, it should be called ipx7. The waterproof level is divided into the following 1-8 levels

Ipx-0 has no waterproof protection

Under normal operation, ipx-1 equipment can provide waterproof protection equivalent to 3-5mm / min rainfall for 10 minutes.

The grade of ipx-2 is basically the same as ipx-1, but it can pass the waterproof test of 15 degrees upward in all directions.

Ipx-360 degree splash water-proof protection provides 2-5 minutes of 10 L / s flow rate and 80-100 n / M pressure water-proof protection.

Ipx-4 is basically the same as ipx-3, but it can provide all-round and angle splash waterproof protection.

Ipx-5 has all-round and angle waterproof protection, providing 2-3 minutes of 12.5 L / s flow rate and 30n / M pressure waterproof protection.

Ipx-6 water-proof protection of big waves can last for 2-3 minutes to resist the depth of 3 meters, the flow rate of 100 L / min and the pressure of 100 N / m.

Ipx-7 can be soaked for 30 minutes under 1 meter of water.

Ipx-8 is completely waterproof and can be used in water continuously for a long time.