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The power adapter protection classification standard, classification standard protection level of the switch power supply, IP67 is what mean? Source protection, IP standard

Author:roadsunny Date:2014-06-11 17:13:38

The division standard of protection grade

The power adapter protection classification standard, classification standard protection level of the switch power supply, IP67 is what mean? Source protection, IP standard

Definition, protection class IP

IP protection grade electric appliance according to the dust and moisture characteristics of grading. IP protection class is composed of two digits, the first digit indicates electric capacity to prevent foreign material intrusion level, the second number indicates the degree of moisture resistant, waterproof sealed electrical invasion, two marked the greater the number and the level of protection that the higher level of protection, two marked digital represented as shown in the following table.

Usually used for protection of communication products are IP 57 (not affected by dust and short in water), IP 65 (dust and splash water) and IP 67 (not affected by dust and short in water). Using IP 65 or the IP 67 by the practical application and the different testing standards to decide. IP 67 is not always better than IP 65. Meet the IP 67 standard element does not necessarily meet the standard of IP 65.

IP (INTERNATIONAL PROTECTION) the level of protection and waterproof test standards are defined by the IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) the drafting of international protection and waterproof test standard.

IEC standard IEC 529 – 598

The national standard GB 700 – 86

The connotation of the two, IP protection grade

(a) the first number: solid material level

1 -- Protection of 50mm diameter and larger solid foreign matter. Protective surface objects such as hand (not deliberate intrusion protection);

2 -- Protection of 12mm diameter and larger solid foreign matter. Protective finger or other length of not more than 80mm objects;

3 -- Protection of 2.5mm diameter and larger solid foreign matter. Protection of the diameter or thickness more than tools, 2.5mm metal wire etc.;

4 -- Protection of 1.0mm diameter and larger solid foreign matter. Protective thickness greater than 1.0mm metal wire or strip;

5 -- the protective dust. Impossible to completely prevent dust from entering, but will not affect the number of dust into the normal operation of equipment;

6 -- not through the dust. No dust.

(two) second numbers: prevent liquid material grade

1 -- protection water droplets (vertical falling water drops);

2 -- equipment is tilted 15 degrees, protection of water. Vertical falling water drops should not cause damage;

3 -- protective spilled water. At a 60 degree angle from the vertical line on both sides of the spilt water should not cause damage;

4 -- protection spray. When the device is tilted 15 degrees from the normal position, in any direction alignment equipment water should not cause damage;

5 -- Protection of water. Alignment equipment from any direction of water should not cause damage;

6 -- protection waves. The waves or strong water into the equipment of water should not cause damage;

7 -- protection immersion. In the definition of the pressure and time in water, can cause the damage of invasion should not water;

8 -- protection under water. In the manufacturer's instructions under the condition of the equipment can be immersed in water for long time.