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By Kieu nguyen/ 6 July, 2020
What is IP CODE?
The IP Code, or Ingress Protection Code, IEC standard 60529, sometimes interpreted as International Protection Code, classifies and rates the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and water. It is published by the International Electrotechnical Commission (IEC). The equivalent European standard is EN 60529.
The degree of protection is usually denoted by “IP-XY”, X and Y are two digits followed by the degree of protection of the shell to resist the ingress of solids / dirt and water.
Example: IP68, IP20
Usually, IP22 or 2x is the minimum requirement when designing electrical components indoors.
First Digit: Showing levels of the solid protection
SOLID PARTICLE PROTECTION |
||
LEVEL |
EFFECTIVE AGAINST |
DESCRIPTION |
0 |
No protection against contact and ingress of objects |
|
1 |
>50mm |
Any large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part |
2 |
>12.5mm |
Fingers or similar objects |
3 |
>2.5mm |
Tools, thick wires, etc. |
4 |
>1mm |
Most wires, slender screws, large ants etc. |
5 |
Dust protected |
Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment. |
6 |
Dust-tight |
No ingress of dust; complete protection against contact (dust-tight). A vacuum must be applied. Test duration of up to 8 hours based on airflow. |
Second Digit: Showing levels of the liquid protection.
LIQUID INGRESS PROTECTION |
||
LEVEL |
EFFECTIVE AGAINST |
DETAILS |
0 |
No protection |
|
1 |
Test duration: 10 minutes Water equivalent to 1 mm (0.039 in) rainfall per minute |
Dripping water,… |
2 |
Test duration: 2.5 minutes for every direction of tilt (10 minutes total) Water equivalent to 3 mm (0.12 in) rainfall per minute
|
Dripping water when tilted at 15° |
3 |
For a spray nozzle: Test duration: 1 minute per square meter for at least 5 minutes[5] Water volume: 10 liters per minute (0.037 impgal/s) Pressure: 50–150 kPa (7.3–21.8 psi) For an oscillating tube: Test duration: 10 minutes Water volume: 0.07 liters per minute (0.00026 impgal/s) per hole
|
Spraying water |
4 |
Oscillating tube: Test duration: 10 minutes, or spray nozzle (same as IPX3 spray nozzle with the shield removed)
|
Splashing of water |
5 |
Test duration: 1 minute per square meter for at least 3 minutes Water volume: 12.5 litres per minute Pressure: 30 kPa (4.4 psi) at distance of 3 meters (9.8 ft) |
Water jets |
6 |
Test duration: 1 minute per square meter for at least 3 minutes Water volume: 100 liters per minute (0.37 impgal/s) Pressure: 100 kPa (15 psi) at distance of 3 meters (9.8 ft)
|
Powerful water jets |
7 |
Test duration: 30 minutes. Tested with the lowest point of the enclosure 1,000 mm (39 in) below the surface of the water, or the highest point 150 mm (5.9 in) below the surface, whichever is deeper. |
Immersion, up to 1 meter (3 ft 3 in) depth |
8 |
Test duration: agreement with manufacturer Depth specified by the manufacturer, generally up to 3 meters (9.8 ft) |
Immersion, 1 meter (3 ft 3 in) or more depth |
Examples:
IP65: Protect equipment from dust and water jet
IP67: Fully protect equipment from dust and water at a depth of 1m around 30 minutes.
IP20: Protect equipment from the fingers but no moisture-proof.
Reference: Wikipedia