1, the grade is different: IPX1 is drop-proof type I, IPX2 is drop-proof type II;
2, the protection range is different: IPX1 protection range is vertical droplets without harmful effects, IPX2 protection range is 15 ° with the vertical direction into the range of droplets without harmful effects;
3, the different test conditions:
IPX1 waterproof grade test conditions are: the shell is placed on the rotating table at a speed of 1r/min, the eccentricity distance is about 100mm, the test equipment in the entire shell above the production of uniform water flow, the water flow rate of 1 + 0.5mm/min, the test time is 10 minutes.
IPX2 waterproof rating test, first of all, the shell needs to be placed in the tilt 15 degrees on the rotary table, and secondly, the shell under test in the four tilt of the fixed position of each test 2.5min, the total time of the test is 10 minutes, the water flow rate of 3 + 0.5mm/min.
Baidu Encyclopedia - waterproof rating