How is the IP waterproof rating of the anti-vandal switch tested?

Abstract: Tact switches belong to the category of electronic switches, which are now used in mobile phones, digital cameras and other related electronics industries.

anti-vandal switch

 

⑴IPX 1

Method title: vertical drip experimental equipment: dripping experimental device Sample placement: Place the sample on a rotating sample table at 1r/min according to the normal working position of the sample, and the distance between the top of the sample and the drip opening is not more than 200mm Experimental conditions: the dripping volume is 10.05 mm/min Duration: 10 min

 

⑵IPX 2

Method title: skew 15° dripping experimental equipment: dripping experimental device Sample placement: make one surface of the sample form a 15° angle with the vertical, and the distance between the top of the sample and the drip opening is not more than 200mm. After each experiment on one side, change to another side for a total of four times. Experimental conditions: the dripping volume is 30.5 mm/min Duration: 4×2.5 min (10 min in total)

 

⑶IPX 3

Method title: water spray experimental method: a. Pendulum water spray experiment Experimental equipment: swing-tube type spraying and splashing experiment device sample placement: choose a swing tube with a proper radius, make the height of the sample table at the diameter of the swing tube, and place the sample on the sample table so that the distance between the top of the sample and the sample nozzle is not more than 200mm, and the sample table does not rotate. Experimental conditions: The water flow is calculated according to the number of spray holes of the pendulum tube, each hole is 0.07 L/min. When water is sprayed, the water spray from the spray holes in the 60° arcs at both ends of the pendulum tube is sprayed to the sample. The test sample is placed in the center of the semicircle of the pendulum tube. The pendulum tube swings 60° at both ends of the vertical, a total of 120°. Each swing (2×120°) about 4s Experiment time: continuous spraying water for 10 min b. Sprinkler water spray experimental equipment: hand-held water spraying and splashing experiment device Sample placement: make the parallel interval between the top of the experiment and the spray nozzle of the hand-held nozzle be between 300mm and 500mm Experimental conditions: A baffle with a balance weight should be installed during the experiment, and the water flow rate is 10 L/min

Experiment time: Calculated according to the surface area of ​​the tested sample shell, 1 min per square meter (not including the area of ​​the device), at least 5 min.

 

⑷IPX 4

Method Title: water splash experimental method: Swing tube splash experimental equipment and sample placement: the same as the above IPX 3 item a; Experimental conditions: Except for the following conditions, it is the same as the above IPX 3 type a; the water spray area is the water spray from the water spray holes in the 90° arcs at the two ends of the pendulum tube to the sample. The test sample is placed in the center of the semicircle of the pendulum tube. The pendulum tube swings 180° at both ends of the vertical line, a total of about 360°. Each swing (2×360°) about 12s experiment time: the same as the section of IPX 3 above (I.e. 10 min). b. Sprinkler type water splash experiment  Experimental equipment and sample placement: same as the above IPX 3 item b; Experimental conditions: Remove the baffle with counterweight on the equipment, and the others are the same as the above IPX 3 item b; Experiment time: Same as the above IPX 3 item b, that is, calculated according to the surface area of ​​the tested sample shell, 1 min per square meter (not including the device area), at least 5 min.

 

⑸IPX 5

Method title: water spray experimental equipment: The inner diameter of the nozzle of the nozzle is 6.3mm Experimental conditions: Make the distance between the experimental sample and the water nozzle 2.5m ~ 3m, and the water flow rate is 12.5 L/min (750 L/h) Experiment time: Calculated according to the surface area of ​​the tested sample shell, 1 min per square meter (not including the area of ​​the device), at least 3 min.

 

⑹IPX 6

Method title: strong water spray experimental equipment: The inner diameter of the nozzle of the nozzle is 12.5 mm Experimental conditions: Same as above 100 L/min (6000 L/h) Experiment time: Calculated according to the surface area of ​​the tested sample shell, 1 min per square meter (excluding the area of ​​the device) at least 3 min.

 

⑺IPX 7

Method title: short-term immersion experimental equipment and experimental conditions: immersion tank. The dimensions should be such that after the sample is placed in the immersion tank, the distance between the bottom of the sample and the water surface is at least 1 m. The distance between the top of the sample and the water surface is at least 0.15m Experiment time: 30 min.

 

⑻IPX 8

Method title: continuous diving experimental equipment, experimental conditions and experimental time: To be negotiated by both the supply and demand (sales and purchases), and its strictness should be higher than that of IPX 7.

Leave a Reply

Your email address will not be published. Required fields are marked *