[Fan] Miniature Waterproof grade division and description

　　1. Range

　　Waterproof test, including second characteristic numeral with 1-8, that protection class code for IPX1 to IPX8

　　2. Various levels of water content test.

　　Water level below the reference standard IEC 60529, GB4208, GB / T10485-2007, DIN40050-9, ISO20653,

　　ISO16750 and other applicable international standards:

　　(1) IPX1

　　Method name: vertical drip test

　　Test Equipment: dripping test equipment and test methods

　　Sample Placement: normal operating position by placing the sample in order to rotate the sample 1r / min of the stage, the top of the sample to the water dripping from the mouth of not more than 200mm

　　Test conditions: dripping capacity of 1.0 + 0.5mm / min

　　Test duration: 10min

　　(2) IPX2

　　Method name: Tilt 15 ° drip test

　　Test Equipment: dripping test equipment and test methods

　　Sample Placement: make a sample into a 15 ° angle with the vertical, top of the sample to the water dripping from the mouth of not more than 200mm, after each test a surface finish, for the other side, a total of four times.

　　Test conditions: dripping capacity of 3.0 + 0.5mm / min

　　Test duration: 4 × 2.5min total 10min

　　(3) IPX3

　　Method name: rain test

　　a. put water spray test tube

　　Test equipment: swing tube splashing water spray test

　　Sample Placement: Select the appropriate radius of the swing tube, put the sample surface height in the tube diameter position, the sample on the sample stage, so that the distance between the top of the spout of the sample is not more than 200mm, not rotating sample stage.

　　Test conditions: water flow according to the number of holes put water pipe calculations, each hole is 0.07 L / min. When watering, water pipe placed on each side of the midpoint of the blowhole 60 ° arc sprayed inside the sample. Test samples were placed in the center of swing pipe semicircle. Pendulum swings on each side along the vertical tube 60 °, a total 120 °. Each swing (2 × 120 °) about 4s.

　　Test pressure: 400kPa

　　Test time: continuous watering 10 min; 5min after the test sample was rotated 90 ° waterproof fan

　　b. nozzle type water spray test

　　Test equipment: hand-held water spray splash test equipment,

　　Sample Placement: to make the top of the test in between 300mm to 500mm handheld nozzle spout of parallel distance

　　Test conditions: Test should be installed with the baffle balance weight, the water flow rate of 10L / min

　　Test time: According to sample shell surface area calculation, every square meter of 1 min (not including installation area), at least 5 min.Cooling fan

　　(4) IPX4

　　Method name: splash water test;

　　a. Swing tube splashing water test

　　Test equipment and sample placement: Select the appropriate radius of the swing tube, put the sample surface height in the tube diameter position, the sample on the sample stage to the top of the sample water from the mouth of not more than 200mm, the sample stage is not rotation.

　　Test conditions: water flow according to the number of holes put water pipe calculations, each hole is 0.07 L / min; water area of water placed on each side of the midpoint of the tube within 90 ° of arc sprayed blowhole samples. Test samples were placed in the center of swing pipe semicircle. Placed on each side along the vertical tube swing 180 °, a total of about 360 °. Each swing (2 × 360 °) about 12s.

　　Test time: with the first (3) IPX3 of a paragraph are the same (ie, 10 min).

　　b. Nozzle type splash water test

　　Test equipment: hand-held water spray splash test equipment,

　　Sample Placement: Install the bezel with balance weights on the device should be removed, so that the top of the test to the 300mm to 500mm between the handheld nozzle spout of parallel distance

　　Test conditions: Test should be installed with the baffle balance weight, the water flow rate of 10L / min

　　Test time: namely According to sample shell surface area was calculated per square meter for 1min (not including installation area) at least 5min.

　　(4) (4) IPX4K

　　Test Name: pressurized pipe rain test

　　Test equipment: swing tube rain test

　　Sample Placement: Select the appropriate radius of the swing tube, put the sample surface height in the tube diameter position, the sample on the sample stage, so that the distance between the top of the spout of the sample is not more than 200mm, not rotating sample stage.

　　Test conditions: water flow according to the number of holes put water pipes calculated for each hole 0.6 ± 0.5 L / min. Water area of the midpoint of each side of the pendulum tube within 90 ° arc of water sprayed into the blowhole samples. Test samples were placed in the center of swing pipe semicircle. Placed on each side along the vertical tube swing 180 °, a total of about 360 °. Each swing (2 × 360 °) about 12s.

　　Test pressure: 400kPa

　　Test time: 5min after the test sample is rotated 90 °

　　Among them:

　　Hole diameter D 1; 2 test sample; 3 turntable; 4 balance; 5 flow indicator and pressure gauge; r200,400,600 or 800; according to the test sample size selection smallest radius; D = 0.4 waterproof protection grade 3 and 4; D = 0.8 waterproof protection grade 4K; speed test sample (1 ~ 3) min-1.

　　Among them:

　　A mobile home; two sprinkler pipe; 3 hose; 4 flow indicator and pressure gauge; 5 Plug; six test samples; 7 balance; aperture 8 devices;

　　Note: Spray tube with a hole diameter of 0.5mm 121;

　　- A central aperture

　　- Core Zone 2 layers (each 12 holes, 30 degree distribution)

　　- 4 outer ring (24 holes per lap, 15-degree distribution);

　　- Removable cover.

　　Spray application of zinc alloy tube (brass) is made.

　　Figure 5 - handheld sprinkler (sprinkler) test equipment, waterproof protection grade 3 and 4

　　(5) IPX5

　　Method name: water spray test

　　Test equipment: nozzle spout diameter of 6.3mm

　　Test conditions: test samples to the spout is 2.5 ~ 3m, water flow rate of 12.5L / min (750L / h);

　　Test time: According to sample shell surface area was calculated per square meter for 1min (not including installation area) at least 3min.

　　(6) IPX6

　　Method Name: strong water spray test;

　　Test equipment: nozzle spout diameter of 12.5 mm;

　　Test conditions: test samples to the spout is 2.5 ~ 3m, water flow rate of 100L / min (6000L / h);

　　Test time: According to sample shell surface area was calculated per square meter for 1min (not including installation area) at least 3min.

　　D = 6.3mm waterproof protection level 5 and 6K;

　　D = 12.5mm waterproof protection grade 6.

　　(7) IPX7

　　Method name: short-term immersion test;

　　Test equipment: water immersion tank.

　　Test conditions: the sample size should be placed in the box after flooding from the bottom of the sample to the surface of at least 1m. From the top of the sample to the surface

　　From at least 0.15 m. Test time: 30min.

　　(8) IPX8

　　Method name: continuous diving trials;

　　Test equipment test conditions and test time: by supply and demand (the sale) agreed to be higher than its severities IPX7..