The protection level of switching power supply

IP is internationally used to identify the protection level of the code Ip level by two figures, the first digital representation of dust; second figures from the representation of water, the greater the number of figures, said the leader is better.
Definition of number protection
0 no protection without special protection
1 to prevent the body from more than 50mm to prevent the human body due to accidentally touch the internal parts of the lamp to prevent the diameter greater than 50mm of the object
2 to prevent the object from more than 12mm to prevent the internal parts of the finger to prevent the finger
3 to prevent more than 2.5mm of the whole body to prevent the intrusion of the diameter is greater than the 2.5mm tool, wire or object intrusion
4 more than 1.0mm objects to prevent intrusion prevention diameter greater than 1 of mosquitoes, insects or invasive objects
5 dust can not completely prevent dust intrusion, but the amount of dust will not affect the normal operation of the lamp
6 dust completely prevent dust intrusion
Waterproof grade
Definition of number protection
0 no protection without special protection
1 to prevent the drip of water from the vertical drop
2 tilt 15 degrees when the lamp is still to prevent water intrusion when the lamp is tilted 15 degrees, can still prevent dripping
3 to prevent the injection of water intrusion into the water, or the vertical angle is less than 50 degrees in the direction of the water jet
4 to prevent the splash of water intrusion prevention of the direction of the water intrusion
5 waves of water to prevent intrusion prevention or blowhole rapidly from waves of water intrusion
6 to prevent water intrusion into the water waves lamps in a certain period of time or pressure conditions, to ensure the normal operation of the lamp can be
7 to prevent the intrusion of water into the lamp without a period of water in a certain water pressure, and can ensure the normal operation of the lamp
8 to prevent the impact of the sinking

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