Detailed standard of IP protection grade

IPxx Dust and Water Protection Level

Dust protection level (the first X indicates) Water protection level (the second X indicates)

0: No protection

1: Protection against large solid objects

2: Protection against medium-sized solid objects

3: Protection against small solid objects

4: Protection against solid objects larger than 1mm

5: Protection against harmful dust build-up

6: Complete protection against dust ingress

0: No protection

1: Water droplets falling onto the enclosure have no effect

2: Water droplets falling onto the enclosure have no effect when the enclosure is tilted to 15 degrees

3: Water or rain falling onto the enclosure from a 60-degree angle have no effect

4: Liquids thrown onto the enclosure from any direction have no harmful effect

5: No damage from water jets

6: Suitable for use in a ship's cabin

7: Can withstand short-term immersion in water (1m)

8: Can be immersed in water for long periods at a certain pressure

For example, a product marked IP65 indicates that it is completely protected against dust ingress and can be washed with water without any harm.

The regulations regarding waterproof testing in the IPXX grade.

(1) IPX 1

Method Name: Vertical Drip Water Test

Test Equipment: Drip Water Test Apparatus

Test Sample Placement: The test sample is placed on a rotating sample table that rotates at 1r/min according to its normal working position, with the distance from the top of the sample to the drip water nozzle not exceeding 200mm

Test Conditions: The drip water rate is 10.5 mm/min

Duration: 10 min

(2) IPX 2

Method Name: 15° Tilt Drip Water Test

Test Equipment: Drip Water Test Apparatus

Test Sample Placement: The test sample is placed so that one face forms a 15° angle with the vertical, and the distance from the top of the sample to the drip water nozzle does not exceed 200mm. After testing one face, another face is tested, for a total of four.

Test Conditions: The drip water rate is 30.5 mm/min

Duration: 4 × 2.5 min (Total 10 min)

(3) IPX 3

Method Name: Spray Water Test

Test Method:

a. Oscillating nozzle spray water test

Test Equipment: Oscillating nozzle spray water and splash water test apparatus

Test Sample Placement: Select an appropriate radius of the swing pipe so that the height of the sample table surface is at the diameter position of the swing pipe diameter, place the test sample on the sample table, so that the distance from the top of the sample to the sample water outlet does not exceed 200mm, and the sample table does not rotate.

Test Conditions: The water flow rate is calculated according to the number of spray holes of the swing pipe, each hole is 0.07 L/min, and the spray water from the spray holes within the arc of 60° on both sides of the midpoint of the swing pipe is sprayed towards the test sample. The test sample is placed at the center of the semicircle of the swing pipe. The swing pipe swings 60° on both sides of the vertical line, totaling 120°. Each swing (2 × 120°) takes about 4s

Test Time: Continuous spraying for 10 min

b. Handheld nozzle spray water test

Test Equipment: Portable spray water splash water test apparatus

Test Sample Placement: The parallel distance from the top of the test sample to the handheld spray nozzle is between 300mm and 500mm

Test Conditions: A deflector should be installed with a counterweight during the test, and the water flow rate is 10 L/min

Test Time: Calculated according to the surface area of the housing of the

a. Swinging-bucket type water-spray test

Test equipment and sample placement: Same as above IPX a;

Test conditions: Except for the conditions described below, same as above IPX3 a; The water-spray area is the water-spray direction of water-spray nozzle on the sample within the range of 90° arc segments on both sides of the midpoint of the swing bucket. The sample to be tested placed at the center of the semicircle of the swing bucket. The swing bucket swings 180° on both sides of the vertical line, totaling about 30°. Each swing (2x360°) takes about 12s

Test time: Same as above IPX3 a (i.e. 10 min).

b. Water-spray test with sprinkler

Test equipment and sample placement: Same as above IPX3 b;

Test conditions Remove the deflector plate with counterweight installed on the equipment, and the rest is the same as above IPX3 b;

Test time: Same as above IP3 b, i.e. calculated according to the surface area of the housing of the sample to be tested, 1 min per square meter (excluding installation area), least 5 min

(5) IPX5

Method name: Water-spray test

Test equipment: The inner diameter of the water outlet of thezzle is 6.3mm

Test conditions: Make the distance between the test sample and the water outlet 2.5m ~ 3m, water flow rate 12.5 L/min (750 L/h)

Test time: Calculated according to the surface area of the housing of the sample to be, 1 min per square meter (excluding installation area), at least 3 min

(6) IPX6

Method name: Intense water-sp test;

Test equipment: The inner diameter of the water outlet of the nozzle is 12.5 mm

Test conditions: Make the distance between the test and the water outlet 2.5m ~ 3m, water flow rate is 100 L/min (6000 L/h)

time: Calculated according to the surface area of the housing of the sample to be tested, 1 min per square meter (excluding installation area), at least 3

(7) IPX7

Method name: Short-time immersion test

Test equipment and test conditions: Water tank. The size should be such that when sample is placed in the water tank, the distance from the bottom of the sample to the surface of the water is at least 1m. The distance from the top of the to the surface of the water is at least 0.15 m

Test time: 30 min