( IP) Industrial protection class definition

IP（ 国际保护) Protection grade is special industrial protection grade, it will be electric appliance according the characteristic of the dust, prevent moisture to classification. IP protection grade is composed of two Numbers, the first digital representation appliances from the dust, the level of the external things out, the second number indicates electric moisture proof, waterproof into airtight degree, the greater the number the higher their level of protection, said two marked number represented by protective ranks below

dust ( The first number)

0: no protection

1:50 mm diameter may not be completely into the shell

2:12 in diameter. 5 mm objects may not be completely into the shell

3: the vertical plane within 60 degrees to drench water, no harmful effect on the

4:1 in diameter. 0 mm objects must not enter the shell completely

5: can't completely prevent dust to enter, but into the amount of dust should not affect the normal operation of equipment, shall not affect safety.

6: no dust enter

waterproof level ( The second number)

0: no protection

1: vertical drop of no harmful effect on the

2: when the shell of the vertical plane within 15 degrees tilt, vertical drop no harmful effect on the

3:2. 5 mm | object can not completely into the shell

4: to shell splashed in all directions without harmful effects

5: no harmful effects to water shell in all directions

6: strong water had no harmful effect to the shell all directions

7: a short period of time can not influence the flooding

8: no influence for diving

for example

IP65 protection class meaning completely dustproof, water to shell in all directions without harmful effects,

IP66 protection grade meaning completely dustproof, strong water had no harmful effect to the shell all directions. Little pony

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