How to explain the IP protection standard of lamps and lanterns

Update:15 Jun 2019
Summary:

First digit dust-proof level after IP number Protection […]

First digit dust-proof level after IP

number
Protection scope
Explain
Zero
No protection
No special protection for people or objects outside.
One
Prevention of solid foreign invasion greater than 50mm diameter
Prevent the human body (such as palm) from touching the interior parts of the appliance due to accidents, and prevent the invasion of larger objects (larger than 50mm diameter).
Two
Prevention of solid foreign invasion greater than 12.5mm diameter
Prevent human fingers from touching parts inside electrical appliances to prevent foreign objects from entering in medium size (larger than 12.5mm).
Three
Prevention of solid foreign invasion greater than 2.5mm diameter
Tools to prevent diameters or thicknesses larger than 2.5mm, wires and similar small objects to enter and touch parts inside electrical appliances.
Four
Prevention of solid foreign invasion greater than 1.0mm diameter
Tools to prevent diameters or thicknesses larger than 1.0mm, wires and similar small objects to enter and touch parts inside electrical appliances.
Five
Prevention of foreign objects and dust
While preventing foreign matter from intruding, it can not completely prevent dust intrusion, but the amount of dust intrusion will not affect the normal operation of electrical appliances.
Six
Prevention of foreign objects and dust
Completely prevent foreign matter and dust intrusion.

Second digit waterproof rating after IP

number
Protection scope
Explain
Zero
No protection
No special protection for water or moisture.
One
Prevent immersion of water droplets
Vertical drops of water, such as condensate, do not damage electrical appliances.
Two
When you tilt 15 degrees, you can still prevent water droplets from flooding.
When the electrical appliance inclines to 15 degrees vertically, the dripping will not damage the electrical apparatus.
Three
Prevent sprinkler water immersion
To prevent rain or prevent damage caused by electrical water sprayed in the direction with a vertical angle less than 60 degrees.
Four
Prevention of splashing water immersion
Prevent splashing water in every direction from damaging electrical appliances and causing damage.
Five
Prevent water from spraying
Prevention of damage from electrical water injected from the nozzle in various directions.
Six
Prevent big waves from entering
Electrical equipment installed on deck prevents damage caused by the invasion of big waves.
Seven
Prevention of water immersion during immersion
Electrical appliances immersed in water for a certain time or under a certain standard of water can ensure that no damage is caused by immersion.
Eight
Prevent immersion of water when sinking.
The electrical appliances are submerged under the specified water pressure indefinitely to ensure that no damage is caused by immersion.

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