Industry News

Ingress Protection(IP Level)

Views : 422
Update time : 2019-01-04 16:03:46
Protection definition
IP stands for Ingress Protection. IEC IP protection class is an important indicator for the safety protection of electrical equipment. IP protection class systems provide a classification of the products against the dust, water and collision resistance of electrical equipment and packaging. The method was approved by most European countries, drafted by the International Electrotechnical Commission (IEC) and announced in the IED529 (BS EN 60529:1992) outer packaging protection class (IP code).
The degree of protection is often expressed in IP followed by two digits, and the number is used to define the level of protection.
The first number indicates the range of equipment dust resistance, or the extent to which people are protected from harm in a sealed environment. I stands for the level of preventing the entry of solid foreign bodies, the highest level is 6;
The second number indicates the degree of waterproofing of the device. P stands for the level of preventing water ingress. The highest level is 8.
Such as motor protection class IP65.
Contact Electrical Equipment Protection and Foreign Object Protection Level (First Number) Electrical Equipment Water Protection Rating (Second Number)
Grade standard
IP is the code used by international to determine the protection level Ip level consists of two numbers, the first number indicates dust; the second number indicates waterproof, the larger the number, the better the protection level.

Dust level
Number Protection Level Definition
0 No protection No special protection
1 Prevent the intrusion of objects larger than 50mm to prevent the human body from inadvertently hitting the internal parts of the electrical equipment Preventing the entry of objects larger than 50mm in diameter
2 Prevent intrusion of objects larger than 12mm Prevent finger from touching internal parts of electrical equipment
3 to prevent the intrusion of objects greater than 2.5mm to prevent the penetration of wires or objects from tools with a diameter greater than 2.5mm
4 Prevent intrusion of objects larger than 1.0mm Prevent intrusion of mosquitoes, flies, insects or objects larger than 1.0mm in diameter
5 Dust prevention does not completely prevent the intrusion of dust, but the amount of intruded dust will not affect the normal operation of electrical equipment.
6 Dust prevention Completely prevent dust intrusion

waterproof level
0 No protection No special protection
1 Prevent drip intrusion
2 Prevention of drip intrusion even when tilted 15 degrees When the electrical equipment is tilted 15 degrees, it can still prevent drip
3 Prevent intrusion of sprayed water Prevent rainwater, or water injected perpendicular to the angle of less than 50 degrees
4 Water ingress to prevent splashing Water ingress to prevent splashing in all directions
5 Water intrusion to prevent large waves Prevent water intrusion from large waves or spray holes
6 to prevent the intrusion of large waves of water Electrical equipment into the water in a certain period of time or water pressure conditions, can still ensure the normal operation of the equipment
7 Prevent intrusion of water into the water The indefinable submerged water of electrical equipment can still ensure the normal operation of the equipment under certain water pressure conditions
8 Prevent sunk influence
Experiment
(1) IPX 1
Method name: vertical drop test
Test equipment: drip test apparatus
Place the sample: Place the sample on the rotating sample stage with 1r/min according to the normal working position of the sample. The distance from the top of the sample to the drip opening should not exceed 200mm.
Test conditions: drip volume 10.05 mm/min
Duration: 10 min
(2) IPX 2
Method name: tilted 15° drop test
Test equipment: drip test apparatus
Place the specimen: 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 drip nozzle should not exceed 200mm. After each face is tested, change it to another face, four times in total.
Test conditions: drip volume (3.0 + 0.5) mm/min
Duration: 4 x 2.5 min (10 min total)
(3) IPX 3
Method name: Drenching test
experiment method:
a. Plunge pipe type watering test
Test equipment: pendulum tube type water splash test device
Place the sample: Select the appropriate radius of the oscillating tube, so that the height of the sample table is in the diameter of the oscillating tube. Place the sample on the sample table so that the distance from the top of the sample to the sample water outlet is less than 200mm. 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 0.07 L/min. When 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 60°, 120° in total. Each swing (2×120°) for about 4s
Test time: continuous watering 10 min
b. Sprinkler test
Test Equipment: Hand-held splashing water splash test device
Specimen placement: The parallel distance from the top of the test to the nozzle of the hand shower is between 300mm and 500mm
Test conditions: The baffle with counterweight should be installed during the test. The water flow rate is 10 L/min.
Test time: Calculated according to the surface area of ​​the shell of the tested sample, 1 min per square meter (excluding installation area), min. 5 min

Method name: splash test
experiment method:
a. Pendulum tube type splash test
Test equipment and specimen placement: Same as in paragraph a of IPX 3 above;
Test conditions: Except for the following conditions, they are the same as those of the above IPX 3 section a; the water spray area is sprayed by the water spray hole in the 90° arc section on both sides of the midpoint of the pendulum pipe. 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°) about 12s
Test time: Same as above for IPX 3 (ie 10 min).
b. Sprinkler-type splash test Test equipment and specimen placement: Same as in paragraph b of IPX 3 above;
Test conditions: remove the baffle with balance weights from the equipment, and the rest are the same as those of the above IPX 3 b;
Test time: the same as the above IPX 3 b, that is, according to the surface area of the shell of the tested sample, 1 min per square meter (excluding the installation area) at least 5 min

(5) IPX 5
Method name: Water spray test
Test Equipment: The inner diameter of the nozzle is 6.3mm
Test conditions: The distance between the test sample and the nozzle is 2.5m to 3m, and the flow rate is 12.5 L/min (750 L/h).
Test time: Calculated according to the surface area of the shell of the tested sample, 1 min per square meter (excluding installation area) at least 3 min

(6) IPX 6
Method name: Strong water spray test;
Test equipment: inner diameter of spray nozzle is 12.5 mm
Test conditions: as above 100 L/min (6000 L/h)
Test time: calculated according to the surface area of the shell of the tested sample, 1 min per square meter (excluding installation area) at least 3 min

(7) IPX 7
Method name: Short-term flooding test
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 water surface is at least 0.15m
Test time: 30 min

(8) IPX 8
Method name: Continuous diving test;
Test equipment, test conditions and test time: agreed upon by both sides of supply and demand (sales), and its severity should be higher than IPX 7.
Note: In addition, many outdoor electronic products also emphasize floating ability.


 
Related News