Lighting knowledge - IP protection level definition

The IP (INTERNATIONAL PROTECTION) protection level system was drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION). The luminaires are graded according to their dust and moisture resistance characteristics. The foreign objects referred to here include tools, human fingers, etc., which are not accessible to the live parts of the lamps to avoid electric shock. The IP protection level consists of two numbers. The first number indicates the level of the lamp from dust and foreign objects. The second number indicates the degree of airtightness of the lamp against moisture and water intrusion. The larger the number, the higher the degree of protection. The higher the level of protection represented by the two marked numbers is shown in Tables 1 and 2.

Table 1: The degree of protection indicated by the first indicator property number (number)

Detailed in the table: the first one defines the digital protection level definition

0 No protection, no special protection for people or things outside.
1 Prevent the intrusion of solid objects larger than 50mm to prevent the human body (such as the palm) from accidentally coming into contact with the parts inside the lamp. Prevent foreign objects of larger size (greater than 50mm in diameter) from intruding.
2 Prevent the intrusion of solid objects larger than 12mm. Prevent people's fingers from coming into contact with parts inside the lamp to prevent intrusion of medium-sized (12mm in diameter) foreign objects.
3 Prevent the intrusion of solid objects larger than 2.5mm to prevent intrusion of tools, wires or similar details of small diameters or thicknesses greater than 2.5mm into contact with parts inside the luminaire.
4 Prevent the intrusion of solid objects larger than 1.0mm to prevent intrusion of tools, wires or similar details of small diameters or thicknesses greater than 1.0mm into contact with parts inside the luminaire.
5 Dustproof completely prevents foreign matter from entering. Although it cannot completely prevent dust from entering, the amount of intruded dust does not affect the normal operation of the lamp.
6 Dustproof completely prevents foreign matter from entering, and can completely prevent dust from entering

Table 2: The degree of protection indicated by the second indicator property number (number)

The second indicator digital protection level definition

0 no protection, no protection
1 Prevent dripping water from intruding into vertical drops (such as condensate) without harmful effects on the lamp.
2 It can prevent dripping water when tilted at 15 degrees. When the lamp is tilted from vertical to 15 degrees, dripping will not cause harmful effects on the lamp.
3 Prevent the sprayed water from intruding into the rain, or prevent the water sprayed in the direction perpendicular to the angle of less than 60 degrees from entering the lamp.
4 Prevent splashing water from intruding to prevent water splashed in all directions from entering the luminaire and causing damage.
5 Prevent the intrusion of injected water to prevent damage from the water from the nozzles entering the lamp from all directions.
6 Prevent large waves from invading the luminaires installed on the deck to prevent damage caused by large waves.
7 Preventing the intrusion of water during flooding The lamp is immersed in water for a certain period of time or the water pressure is below a certain standard to ensure that it is not damaged by water ingress.
8 Preventing the intrusion of water when it sinks The indefinite sinking of the lamp under the specified water pressure ensures that it will not be damaged by water ingress.


Editor: China Lighting Network Liu Li

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Serial Number Specification Model Lateral Plate Diameter D1 Major Diameter D2 Axle Hole Diameter D4 Carrying Hole Diameter D5 Center Distance E of Axle Hole and Carrying Hole External Width L1 Internal Width L2
1 800 800 400 80 40 160 600 500
2 1000 1000 500 80 40 160 750 630
3 1120 1120 560 80 40 160 850 710
4 1250 1250 630 80 40 160 950 800
5 1400 1400 710 80 65 300 1060 900
6 1600 1600 800 80 65 300 1180 1000
7 1800 1800 1000 100 65 300 1320 1120
8 2000 2000 1120 1235 65 300 1500 1250
9 2240 2240 1250 125 65 300 1700 1400
10 2500 2500 1500 125 65 300 1900 1600
11 2800 2800 1800 140 65 300 2120 1800
12 3150 3150 2000 160 65 500 2300 2000
13 4000 4000 2800 200 80 500 2300 2000


 

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