Detailed classification of IP waterproof level
The following waterproof level reference standards IEC60529, GB4208, GB/T10485-2007, DIN40050-9, ISO20653, ISO16750 and other international applicable standards:
1. scope
The waterproof test includes the second accompanying characteristic number from 1 to 8, that is, the protection level code is IPX1 to IPX8
2. Various levels of waterproof test content
(1) IPX1
Method name: vertical dripping test
Test equipment: drip test device and test method
Placement of the sample: according to the normal working position of the sample, it is placed on the rotating sample stage at 1r/min, and the distance from the top of the sample to the drip hole is not more than 200mm
Test conditions: dripping water 1.0+0.5mm/min; test duration: 10min
(2) IPX2
Method name: Inclined 15° dripping test
Test equipment: drip test device and test method
Placement of the sample: Make one side of the sample form an angle of 15° with the vertical line, and the distance from the top of the sample to the drip hole is not more than 200mm. After each side is tested, change the other side, a total of four times.
Test conditions: dripping water is 3.0+0.5mm/min; test duration: 4×2.5min for a total of 10min
3) IPX3
Method name: rain test
a. Swing pipe water spray test
Test equipment: pendulum-type spray water splash test
Sample placement: Select a swing tube with an appropriate radius, so that the height of the sample table is at the diameter of the swing tube, place the sample on the sample table, make the distance from the top to the sample water nozzle not greater than 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, and each hole is 0.07 L/min. When spraying water, spray water from the water spray holes in the 60° arcs on both sides of the midpoint of the swing pipe to the sample. The sample to be tested is placed in the center of the semicircle of the swing tube. The swing tube swings 60° on both sides of the vertical line, a total of 120°. Each swing (2×120°) takes about 4s.
Test pressure: 400kPa; Test time: continuous watering for 10 minutes; sample rotates 90° after 5 minutes of test
b. Nozzle spray test
Test equipment: hand-held water splash test device,
Sample placement: make the parallel distance from the top of the test to the nozzle of the hand-held nozzle between 300mm and 500mm
Test conditions: a baffle with a balance weight should be installed during the test, and the water flow rate is 10L/min
Test time: calculated according to the surface area of the tested sample shell, 1 min per square meter (excluding the installation area), at least 5 min.
(4) IPX4
Method name: water splash test;
a. Swing tube splash test
Test equipment and sample placement: select a swing tube with an appropriate radius so that the height of the sample table is at the diameter of the swing tube, place the sample on the sample table so that the distance from the top to the sample water nozzle is not more than 200mm, the sample table Does not rotate.
Test conditions: The water flow rate is calculated according to the number of water spray holes of the pendulum pipe, and each hole is 0.07L/min; the water spray area is the spray water of the water spray holes in each 90° arc section on both sides of the midpoint of the pendulum pipe to the sample. The sample to be tested is placed in the center of the semicircle of the swing tube. The swing tube swings 180° on both sides of the vertical line, about 360° in total. Each swing (2×360°) takes about 12s.
Test time: the same as item a of IPX3 (10 min) in the above article (3).
b. Nozzle Splash Test
Test equipment: hand-held water splash test device,
Sample placement: The baffle with balance weight installed on the equipment should be removed, so that the parallel distance from the top of the test to the nozzle of the hand-held nozzle is between 300mm and 500mm.
Test conditions: A baffle with a balance weight should be installed during the test, and the water flow rate should be 10L/min.
Test time: calculated according to the surface area of the tested sample shell, 1 min per square meter (excluding the installation area), at least 5 min.
(5)IPX4K
Test name: Pressurized swing pipe rain test
Test equipment: pendulum rain test
Sample placement: Select a swing tube with an appropriate radius, so that the height of the sample table is at the diameter of the swing tube, place the sample on the sample table, make the distance from the top to the sample water nozzle not greater than 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, and each hole is 0.6±0.5 L/min. The water spraying area is the water spraying holes in the 90° arcs on both sides of the midpoint of the pendulum pipe to the samples. The sample to be tested is placed in the center of the semicircle of the swing tube. The swing tube swings 180° on both sides of the vertical line, about 360° in total. Each swing (2×360°) takes about 12s.
Test pressure: 400kPa
Test time: After 5 minutes of test, the sample rotates 90°
Note: The spray pipe has 121 holes with a diameter of 0.5mm;
-- 1 hole in the center
-- 2 layers in the core area (12 holes in each layer, distributed at 30 degrees)
-- 4 outer circles (24 holes per circle, 15 degree distribution);
-- Removable cover.
The sprinkler pipe shall be made of copper-zinc alloy (brass).
(6) IPX5
Method name: water spray test
Test equipment: the inner diameter of the spray nozzle of the nozzle is 6.3mm
Test conditions: the distance between the test sample and the water nozzle is 2.5~3m, and the water flow rate is 12.5L/min (750L/h);
Test time: calculated according to the surface area of the tested sample shell, 1 min per square meter (excluding the installation area), at least 3 min.
(7) IPX6
Method name: strong water spray test;
Test equipment: the inner diameter of the spray nozzle of the nozzle is 12.5mm;
Test conditions: the distance between the test sample and the water nozzle is 2.5-3m, and the water flow rate is 100L/min (6000L/h);
Test time: calculated according to the surface area of the tested sample shell, 1 min per square meter (excluding the installation area), at least 3 min.
D=6.3mm waterproof protection level 5 and 6K;
D=12.5mm waterproof protection level 6.
(8) IPX7
Method name: short-term water immersion test;
Test equipment: immersion tank.
Test conditions: the size should be such that after the sample is placed in the immersion tank, the distance from the bottom of the sample to the water surface is at least 1m. The distance from the top of the sample to the water surface is at least 0.15 m. Test time: 30min.
(9) IPX8
Method name: continuous diving test;
Test equipment Test conditions and test time: Negotiated by the supply and demand (buyer and seller). Its severity should be higher than IPX7.
(10) IPX9K
Method Name: High Pressure Jet Test
Test equipment: the inner diameter of the spray nozzle of the nozzle is 12.5mm;
Test conditions: water spray angle: 0°, 30°, 60°, 90° (4 positions); number of water spray holes: 4; sample table speed: 5 ±1r.p.m; distance 100 ~ 150mm, each position for 30 seconds; the flow rate is 14~16 L/min, and the spray pressure is 8000~
10000kPa, the water temperature requirement is 80±5℃
Test time: 30 seconds for each position x 4 for a total of 120 seconds.