ip等级（ip degree）.doc

ip等级（ip degree） IPxx dust proof and waterproof grade Dust rating (first X indication) waterproof level (second X stands) 0: there is no protection 1: to prevent large solid invasion 2: prevent medium size solid intrusion 3: prevent small solids from entering the invasion 4: prevent objects larger than 1mm solid access 5: to prevent harmful dust accumulation 6: completely prevent dust entering 0: there is no protection 1: water droplets drip into the casing without affecting 2: when the case is tilted to 15 degrees, the water droplets drip into the casing without affecting 3: water or rain from the 60 degree corner to the shell has no effect 4: liquid poured in any direction to the shell, no harm 5: rinse with water without any harm 6: can be used in cabin environment 7: resistant immersion in a short period of time (1m) 8: for a long time under certain pressure flooding Example: there is a scale or display instrument marked IP65, which means that the product can completely prevent dust entry and water flushing without any harm. Regulations on waterproof experiment in grade IPXX. (1) IPX 1 Method: vertical drop test Test equipment: drip test apparatus Sample placement: according to the normal working position of the sample, placed on the rotating sample table with 1r/min, the distance between the top of the sample and the drop mouth is not more than 200mm Test condition: drip capacity is 10. 5 mm/min Duration: 10 min (2) IPX 2 Method: tilt 15 degrees drop test Test equipment: drip test apparatus Sample placement: make a surface of the sample and the vertical to 15 degrees, and the distance between the top and the drop of the sample is not more than 200mm. After each experiment, change to another surface, four times. Test condition: drip capacity is 30. 5 mm/min Duration: 4 * 2. 5 min (10 min in total) (3) IPX 3 Methods: water drenching test Test method: A. Pendulum tube irrigation test Test equipment: swing pipe type water splashing test device The specimen is placed