Standard for judging the sealing function of waterproof joints

At present, the primary assessment specification for the waterproof function of the waterproof connector is based on the ip waterproof rating specification. To see how the waterproof function of the waterproof connector is, first look at the two digits XX behind the IPXX, the first X is 0 to 6, the highest level is 6; the second digit is 0 to 8, the highest level is 8; therefore the waterproof connector The highest waterproof rating is IP68.

Degree of protection against solid objects (first X)

0: No maintenance

1: Avoid solid intrusion of more than 50mm, equivalent to the length of one hand;

2: Avoid 12.5mm solid intrusion; equivalent to the length of one finger;

3: Avoid intrusion of 2.5mm. Equivalent to a wire tool;

4: Avoid solid objects larger than 1.0mm entering, equivalent to a wire stripping wire;

5: Avoid the hazard caused by dust entering;

6: completely avoid dust

Water protection level (the second X indicates)

0: waterproof

1: Avoid water droplets

2: When the housing is tilted to 15 degrees, water droplets dripping into the housing have no effect

3: Water rain the 60-degree corner to the shell has no effect

4: The liquid is splashed into the housing any direction without damage

5: Washing with water without any damage

6: Avoid strong jets of water, which can be used in the cabin environment

7: Can withstand flooding in a short time

8: Continue to soak under certain pressure

Especially for the test of the highest grade IP68 waterproof joint, the experimental equipment, experimental conditions experimental time are agreed between the supply demand (business) parties, its severity is naturally much higher than the protection level below it. For example, the IP68 waterproof test of Bulgin's waterproof connector is: make sure to work at 10 meters water depth for 2 weeks without water; put 100 meters water depth damage the test for 12 hours. .