About IP protection level, you need to know these!
About IP protection level, you need to know these!
2020-03-20

IP protection level is a basic parameter for electrical products. “Whether it meets the IP67 / IP68 standard” is often easy to ask, but it is often easy to ignore. So how to understand the IP protection level, and the two digits represent what standard, let us understand together today! Break your vague concepts and fully understand the level requirements.

First of all, what is the meaning of IP protection level and the significance of standard setting?

IP is an abbreviation for International Protection and is sometimes understood as an abbreviation for Ingress Protection. In fact, the second understanding is also very relevant, because the IP protection level is not only the protection of equipment products, but also the protection of operators. It is first to prevent humans from entering the equipment to cause harm to people, while preventing foreign objects (solids) or water. (Liquid) enters the equipment and causes injury.

How to distinguish between IP rating and waterproof rating?

IP code: indicates the degree of protection of the enclosure

This standard describes a system for classifying the degree of protection of enclosures of electrical equipment. Proposed by the European Committee for Electronic Standardization, the protection levels of electrical equipment enclosures are divided into many categories. According to different numbers, the protection levels of products can be quickly and easily determined.

To put it simply: the first digit after IP is for the protection of solid foreign objects, and the second digit is to prevent water from entering the equipment and causing damage.

First look at the first digit (dust-proof level)

0: No protection, no special protection for outside people or things.

1: Prevent the intrusion of solid foreign objects with a diameter greater than 50mm, prevent the human body (such as the palm) from accidentally touching the parts inside the appliance, and prevent the intrusion of foreign objects with larger sizes (greater than 50mm in diameter).

2: Prevent the intrusion of solid foreign objects with a diameter greater than 12.5mm, prevent human fingers from touching the parts inside the appliance, and prevent the intrusion of foreign objects of medium size (greater than 12.5mm in diameter).

3: Prevent the intrusion of solid foreign objects with a diameter greater than 2.5mm, and prevent the intrusion of tools, wires and similar small foreign objects with a diameter or thickness greater than 2.5mm and contact with parts inside the appliance.

4: Prevent the intrusion of solid foreign objects with a diameter greater than 1.0mm, and prevent the intrusion of tools, wires and similar small foreign objects with a diameter or thickness greater than 1.0mm and contact with parts inside the appliance.

5: Prevent foreign objects and dust. Although it cannot completely prevent dust from invading, the amount of dust invading will not affect the normal operation of the appliance.

6: Completely prevent the intrusion of foreign objects and dust. The dust is banned. The dust cannot enter the entire diameter of the object and cannot exceed the gap of the shell.

Look at the second digit (waterproof level):

0: indicates that the device has no special protection against liquids

1: Prevent water droplets from immersing. Water droplets falling vertically (such as condensation) will not cause damage to the equipment.

2: When it is inclined at 15 degrees, it can still prevent water droplets from entering. When the device is tilted from vertical to 15 degrees, dripping water will not cause damage to the device.

3: Prevent the sprayed water from immersing in the rain, or prevent the sprayed water from entering the equipment in an angle less than 60 degrees with the vertical angle to cause damage.

4: Prevent splashing water from entering, and prevent water from splashing in all directions from entering the equipment and causing damage.

5: Prevent the sprayed water from entering, and prevent the water sprayed from the nozzle from all directions from entering the equipment and causing damage.

6: Prevent the ingress of large waves. Equipment installed on deck can prevent damage caused by the invasion of large waves.

7: Prevent the water from immersing when immersed in water. The equipment is immersed in water for a certain period of time or the water pressure is below a certain standard, which can ensure that no damage is caused by immersion in water.

8: Prevent the water from immersing when sinking. The equipment sinks indefinitely under the specified water pressure to ensure that it will not be damaged by the immersion.

The standards for IP (INGRESS PROTECTION) protection level and waterproof test are:

1. International protection and waterproof test standard drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION): International Electrotechnical Commission Standard IEC 529-598.

2. National standard GB 700-86

3. GB 4208-2008 enclosure protection level (IP code), etc.

I believe that through the introduction of the above text, everyone has a specific concept of IP protection level. In short, after the popularization, when considering the protection level of electrical equipment, you should still choose the protection level of electrical equipment reasonably according to the environmental characteristics of the installation of electrical equipment, so as to ensure the safe operation of electrical equipment!


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