2. IP XX test

The waterproof test includes the second characteristic number of 1 to 8, that is, the protection grade code is ipx1 to ipx8.

Grade waterproof

【1】IPX 1

Method name: vertical dripping test

Test equipment: drip test device

Sample placement: place the sample on the rotating sample table at 1R / min according to the normal working position of the sample, and the distance from the top of the sample to the drip port shall not be greater than 200mm

Test conditions: the dripping amount is 10.05 mm / min

Duration: 10 min

【2】IPX 2

Method name: inclined 15 ° drip test

Test equipment: drip test device

Sample placement: make one surface of the sample form an angle of 15 ° with the vertical line, and the distance from the top of the sample to the drip port shall not be greater than 200mm. After each test, change another face for four times.

Test conditions: the dripping amount is 30 ± 0.5 mm / min

Duration: 4 × 2.5 min (10 min in total)

【3】IPX 3

Method name: water splash test

Test method:

a. Swing tube water spraying test

Test equipment: swinging tube type water spraying and splashing test device

Sample placement: select a swing tube with appropriate radius, make the height of the sample table at the position of the swing tube diameter, and place the sample on the sample table, so that the distance from its top to the sample spray port is not more than 200mm, and the sample table does not rotate.

Test conditions: the water flow is calculated according to the number of spray holes of the pendulum tube, and each hole is 0.07 L / min. during water spraying, the water from the spray holes in the 60 ° arc section on both sides of the midpoint of the pendulum tube is sprayed to the sample. Place the sample at the center of the semicircle of the pendulum tube. The pendulum tube swings 60 ° on both sides of the vertical line, a total of 120 °. Each swing (2) × 120 °) about 4S

Test time: continuous watering for 10 min

b. Sprinkler spray test

Test equipment: hand held water spraying and splashing test device

Sample placement: make the parallel distance from the top of the test to the spray port of the hand-held sprinkler between 300mm and 500mm

Test conditions: the baffle with balance weight shall be installed during the test, and the water flow shall be 10 L / min

Test time: calculated according to the shell surface area of the tested sample, 1 min per square meter (excluding the installation area), at least 5 min

【4】IPX 4

Method name: water drenching test

Test method:

a. Pendulum tube splash test

Test equipment and sample placement: the same as paragraph a of IPX 3 above;

Test conditions: except for the following conditions, they are the same as paragraph a of IPX 3 above; The water spraying area is the water spraying area of the water spraying hole in the 90 ° arc section on both sides of the midpoint of the pendulum tube, which is sprayed to the sample. Place the sample at the center of the semicircle of the pendulum tube. The pendulum tube swings 180 ° on both sides of the vertical line, with a total of about 360 °. Each swing (2) × 360 °) about 12s

Test time: the same as paragraph a of IPX 3 above (i.e. 10 min).

b. Sprinkler splash test

Test equipment and sample placement: the same as paragraph B of IPX 3 above;

Test conditions: remove the baffle with counterweight installed on the equipment, and the rest are the same as paragraph B of IPX 3 above;

Test time: the same as paragraph B of IPX 3 above, i.e. 1 min per square meter (excluding installation area) and at least 5 min based on the shell surface area of the tested sample

【5】IPX 5

Method name: water spray test

Test equipment: the inner diameter of the spray nozzle is 6.3mm

Test conditions: the distance between the test sample and the water spray port is 2.5m ~ 3M, and the water flow is 12.5 L / min (750 L / h)

Test time: 1 min per square meter (excluding installation area) based on the shell surface area of the tested sample, at least 3 min

【6】IPX 6

Method name: strong water spray test;

Test equipment: the inner diameter of the spray port of the nozzle is 12.5 mm

Test conditions: the distance between the test sample and the water spray port is 2.5m ~ 3M, and the water flow is 100 L / min (6000 L / h)

Test time: 1 min per square meter (excluding installation area) based on the shell surface area of the tested sample, at least 3 min

【7】IPX 7

Method name: short time immersion test

Test equipment and test conditions: immersion tank. The size shall be such that the distance from the bottom of the sample to the water surface shall be at least 1m after the sample is put into the immersion tank. The distance from the top of the sample to the water surface shall be at least 0.15m

Test time: 30 min

【8】 IPX 8

Method name: continuous diving test;

Test equipment, test conditions and test time: it shall be agreed by the supplier and the buyer, and its severity shall be higher than IPX 7.