IP protection level: protection standard for electrical equipment
IP protection rating (Ingress Protection Rating) is a standard established by the International Electrotechnical Commission (IEC), which is used to rate the degree of protection of electrical equipment enclosures against solid foreign objects and liquids. The IP rating consists of two numbers, the first number indicates the dustproof level, and the second number indicates the waterproof level. The higher the number, the higher the level of protection.
The meaning of IP protection level
The first number indicates the dust resistance level
The dustproof level ranges from 0 to 6. The larger the number, the higher the dustproof level.
Level Meaning
0 no protection
1 Prevent solid foreign objects larger than 50mm from entering
2 Prevent the entry of solid foreign objects larger than 12.5mm
3 Prevent solid foreign objects larger than 2.5mm from entering
4. Prevent solid foreign objects larger than 1mm from entering.
5 Prevent dust from entering, but allow limited dust to enter
6 Completely prevent dust from entering
The second number indicates the waterproof level
The waterproof level ranges from 0 to 8. The larger the number, the higher the waterproof level.
Level Meaning
0 no protection
1 Prevent the harmful effects of vertically falling water droplets
2 Prevent the harmful effects of vertically falling water droplets at a 15° tilt
3 Prevent the harmful effects of vertically falling water droplets at a 60° tilt
4 Prevent harmful effects from water jets from any direction
5 Prevent harmful effects caused by water sprayed from any direction, water column pressure can reach 30 minutes, water column pressure can reach 80 kPa
6. Prevent harmful effects caused by water wave impact. The water column pressure can reach 30 minutes and the water column pressure can reach 80 kPa.
7 Completely prevent water immersion and can work underwater
8 Completely prevent water immersion, can work underwater, water pressure can reach 100 MPa
Application of IP protection level
IP protection levels are widely used in electrical equipment, such as mobile phones, computers, household appliances, industrial equipment, etc. When selecting electrical equipment, the appropriate IP protection level should be selected based on the environment in which the equipment is used.
indoor equipment
Generally, the IP protection level of indoor equipment is IP21 or IP22, which can prevent the intrusion of dust and water droplets.
outdoor equipment
The IP protection level of outdoor equipment is generally higher than that of indoor equipment, such as IP54 or IP65. IP54 can prevent the intrusion of water flow and dust, and IP65 can prevent the intrusion of strong water flow and dust.
Special environment equipment
Equipment used in special environments requires a higher IP protection level. For example, equipment used in humid environments requires a waterproof rating of IP66 or IP67; equipment that works underwater requires an IP68 waterproof rating.
Choice of IP protection level
When selecting electrical equipment, the appropriate IP protection level should be selected based on the environment in which the equipment is used. Generally speaking, you can choose according to the following principles:
indoor equipment
Indoor equipment is mainly subject to the intrusion of dust and water droplets, so the protection level of IP21 or IP22 can meet the requirements.
outdoor equipment
Outdoor equipment is subject to intrusion from various factors such as rain and dust, so IP54 or IP65 protection levels are more suitable.
Special environment equipment
Equipment used in special environments needs to choose the appropriate IP protection level according to the specific environment. For example, equipment used in humid environments requires a waterproof rating of IP66 or IP67; equipment that works underwater requires an IP68 waterproof rating.
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