The waterproof and dustproof light touch switch we are going to talk about today is also a very common type of daily switch. The so-called waterproof and dustproof light touch switch is a light touch switch that can be operated by wet hands and exposed to dust. Compared to ordinary switches, its safety and waterproof performance is one of the most prominent characteristics of waterproof switches. The main evaluation criteria for the waterproof performance of waterproof switches are usually based on the original evaluation of light touch switches, The judgment method for the waterproof standard level.The test method for waterproofing level in an unprotected environment:

1: No effect when water drops into the shell 2: No effect when water drops into the shell when the shell is inclined to 15 degrees 3: No effect when water or rain drops onto the shell from 60 degrees corner 4: No effect when liquid splashes into the shell from any direction 5: No damage when washing with water 6: Can be used for the Internal environment of the cabin 7: Water intrusion resistance in a short time (1M) 8: Long time under certain pressure

In an unprotected environment, there are several testing methods for dust prevention:

1: Preventing Large Solids from Invading 2: Preventing Medium Solids from Invading 3: Preventing Small Solids from Invading 4: Preventing Solids larger than 1MM from Entering 5: Preventing Harmful Dust Accumulation 6: Completely Preventing Dust from Entering

Other basic test parameters:

a. High waterproof and dustproof: IEC529 standard IP68

b. High insulation resistance: ≥ 10M Ω after climate test

c. High contact: Internal A contact circular multi-point contact

d. High insulation resistance temperature 60 ℃ in water for 24 hours

e. Place the switch in water at a temperature of 60 ℃, take it out after 24 hours, and place it in a normal temperature and humidity environment for 2 hours. Test its various properties and ensure that the insulation resistance is ≥ 10M Ω and the voltage resistance is>250VDC/MIN

So to determine the waterproof performance of the waterproof touch switch, it mainly depends on the last two digits XX of IPXX, the first digit X is from 0 to 6, and the highest level is 6; The second digit X ranges from 0 to 8, with a maximum level of 8; Therefore, the highest waterproof level of the waterproof light touch switch is IP68, which is currently mostly based on this waterproof level. Although waterproof switches have many advantages, there are still many constraints in their actual use, such as installation methods and product installation direction, airflow, pressure difference acting on the product, strength of fluid rebound, and working voltage; Wait a minute. A waterproof switch with excellent sealing performance, even if the sealing technology reaches a leading level, does not mean that the switch is completely sealed, and it also needs to prevent the invasion of corrosive gases or substances.