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When we choose the type of security equipment, the first thing to determine is whether this product is suitable for indoor or outdoor, and then select the product according to the introduction of security product providers, so the parameters on the product is very important, and some products will be in the parameters Write down the protection level standard, we are determined by this standard. The degree of protection consists of two concepts, one is the level of dust protection and the other is the level of water resistance.
IPAB where A stands for the dustproof rating and B stands for the waterproof rating, which is typically expressed in terms of numbers such as a product. For example, a camera specification on the IP67 protection class indicates that the product can completely prevent dust from entering and prevent water intrusion during flooding.
Standard Specification for Testing IP Protection Levels of Security Products 
(1) IPA1 method name: vertical drip test test equipment: drip test device Sample placement: according to the normal working position of the sample placed on a rotating sample stage at 1r/min, the distance from the top of the sample to the drip outlet is not more than 200mm.
Test conditions: drip volume 10.5mm/min duration: 10min
(2) IPA2 method name: tilting 15° dripping test Test equipment: drip test apparatus Specimen placement: Make one surface of the specimen at an angle of 15° to the vertical, and the distance from the top of the specimen to the dripping opening is not more than 200mm. After each face is tested, change it to another face, four times in total.
Test conditions: drip volume 30.5mm/min duration: 4×2.5min (total 10min)
(3) IPA3 method name: Drenching test a. Test equipment: Pendulum-type water-splashing water-splashing test device Sample placement: Select a proper radius of the oscillating tube so that the height of the sample table is at the diameter of the oscillating tube and place the sample. On the sample platform, the distance from the top of the sample to the sample water outlet is no more than 200mm, and the sample table does not rotate.
Test conditions: The water flow rate is calculated as the number of spray holes in the oscillating tube. Each hole is 0.07L/min. When the water is poured, the water spray holes in the 60° arc section on both sides of the midpoint of the oscillating pipe are sprayed to the sample. The sample was placed in the center of a semi-circular tube. The oscillating tube oscillates along both sides of the vertical by 60°, for a total of 120°. Each swing (2×120°) about 4s
Test time: continuous watering 10min
b. Test equipment: hand-held splashing water splash test device Placement of sample: The parallel distance from the top of the test to the nozzle of the hand-held nozzle is between 300mm and 500mm. Test conditions: The baffle with balance weight should be installed during the test. Water flow is 10L/min
Test time: According to the surface area of ​​the shell of the tested sample, it is 1 min per square meter (excluding the installation area) and at least 5 min.
(4) IPA4 method name: splash test a, oscillating tube type splash test test equipment and sample placement: the same with the above IPX3 a;
Test conditions: Except for the following conditions, the same with the aforesaid section of IPX3; the water spray area is the water spray of the spray hole in the 90° arc section on both sides of the midpoint of the pendulum pipe to the sample. The sample was placed in the center of a semi-circular tube. The oscillating tube oscillates 180° on both sides of the vertical, totaling about 360°. Each swing (2 × 360°) for about 12s
Test time: Same as above for IPX3 (a 10min).
b. Sprinkler-type splash test test equipment and sample placement: Same as the above paragraph b of IPX3;
Test conditions: remove the baffle with balance weights from the equipment, and the rest are the same as the above paragraphs of IPX3;
Test time: the same as the above IPX3 b, that is, according to the shell surface area of ​​the sample to be tested, 1min per square meter (excluding the installation area) at least 5min
(5) IPA5 method name: water spray test equipment: the inner diameter of the spray nozzle is 6.3mm
Test conditions: The distance from the test sample to the water spray nozzle is 2.5m to 3m, and the water flow rate is 12.5L/min (750L/h)
Test time: According to the surface area of ​​the shell of the tested sample, it is 1min per square meter (excluding installation area) at least 3min
(6) IPA6 method name: strong water spray test equipment: nozzle water jet inner diameter of 12.5mm
Test conditions: The distance from the test sample to the water outlet is 2.5m to 3m, and the water flow rate is 100L/min (6000L/h)
Test time: According to the surface area of ​​the shell of the tested sample, it is 1min per square meter (excluding installation area) at least 3min
(7) IPA7 method name: Short-term flooding test equipment and test conditions: Immersion tank. The dimensions should be such that after the sample is placed in the immersion tank, the distance from the bottom of the sample to the surface of the water is at least 1 m. The distance from the top of the sample to the surface of the water is at least 0.15m
Test time: 30min
(8) IPA8 method name: continuous diving test;
Test equipment, test conditions and test time: agreed upon by both sides of the supply and demand (sales), and its severity should be higher than IPX7.
Today's security products are micro-electronic products, especially security monitoring equipment, these products have high density, high speed, low voltage and low power consumption. Therefore, these products are very sensitive and have relatively high requirements for IP protection. If these parameters are neglected for a moment, it will affect the operation of the entire security product or security system. IP stands for Ingress Protection. The IP protection rating system provides a method for classifying products based on the degree of protection against dust, water and collisions in electrical equipment and packaging.
September 14, 2019