With the scientific and technological development of the times, the functions of consumer electronic and electrical products that people use daily are more and more complete, and the use environment of the products themselves is more and more complex and changeable. In order to better ensure the normal operation of various functions of the products, enterprises will consider the shell and its seal when designing products to prevent foreign matters from invading the interior. The foreign matters here usually refer to dust or water, and the test to evaluate this protection level is also known as IP dustproof and waterproof grade test.

IP dustproof and waterproof test introduction:

Therefore, the IP enclosure protection grade (IP code) of the product is classified according to the characteristics of the electrical equipment enclosure to prevent foreign matters from invading, dust-proof and waterproof. The source is the standard IEC60,529 of the International Electrotechnical Commission. In this standard, the format IPXX and letter combination of the IP grade of the electrical equipment enclosure to protect foreign matters are specified, in which XX is two Arabic numerals, and the first digit represents the level of the product to prevent dust and foreign matters from invading, The highest level is 6. The second Arabic numeral indicates the airtightness of the product against moisture and water immersion, with the highest level of 9. The higher the number, the higher the protection level of the product. The product IP dustproof and waterproof grade is also an important indicator of electrical equipment safety protection.

Purpose of IP dustproof and waterproof test:

1. Protection against human contact with dangerous parts in the enclosure;

2. Protection against solid foreign matters entering the enclosure equipment;

3. Protection against harmful effects of water entering the enclosure on equipment;

4. Identification of protection grade.

It is worth noting that the protection requirements for different products and different environments are different, and the shell protection of a product must adapt to the actual use environment of the product. For example, the purpose of street lamp shell is to prevent rainwater intrusion.

IP dustproof and waterproof test standard:

GB/T4208-2017 Degrees of Protection Provided by Enclosures (IP Code)

IEC 60529-2013 Degrees of Protection Provided by Enclosures (International Degrees of Protection Code)

ISO 20653-2013 Road vehicles - Degree of protection (IP code) - Protection of electrical equipment against foreign objects, water and entry

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