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Introduction of LED display display IP and way of testing | ||||
Introduction of LED SCREEN IP and way of testing
Instruction of IP (Conform EN60529/IEC529)
Instruction of protection Level (according to EN60529/IEC529)
Protection level IP54, IP is the mark, number 5 is the first marking number, 4 is the second marking number, the first marking number means the contact potection level, the second mark number means the water proof level, contact protection and anti external force (first number) water-proof level(second number).
First number protection area
Second number protection area
Name description:
0 no protection
1 protection from 50mm diameter and big thing. Diameter 50mm. No damage from the vertical dropping water
2 protection from 12.5mm diameter and big external thing. Diameter 12.5mm. No damage from the
3 protection from 2.55mm diameter and big external thing. Diameter 2.5mm. No damage from the
4 protection from 1.0mm diameter and big external thing. Diameter 1.0mm. No damage from the
5 Anti dust, impossible complete anti dust.
6 Anti dust, with an air compress of 20mpa,
8 Protection long time water drank. Water drank under certain condition. The volumn should not exceed a certain quantity which can cause a damage.
Techniqul article:
water proof test
1. area
Water proof test should include the second digit from 1 to 8, which protection level is 1P x 1 to IP x 8
2. Experiment content for protection of different level. (1)IPX1
Method:
Experiment equipment: water dropping experiment equipment and its experiment method. Please refer to 2.11.
Sample mounting:
Experiment condition:
Lasting time: 10minutes (2)IPX2
Method: 15degree water dropping experiment
Experiment equipment: water dropping experiment equipment and its experiment method. Please refer to 2.11.
Sample mounting:
Test condition: water drop 0.5mm/min
Test time: 4 x 2.5minutes(total 10 minutes) (3)IPX3
Method: water sprinting experiment
a. Throwing water springting experiment.
Test equipment: throwing water spraying experiment equipment( please reafer chapter 2.14 for the drawing and method)
Sample mounting: choose tube with proper diameter. Put the sample on radius of the mounting place. Make sure the distance between the sample and the spray head not exceed 200mm. No rotation.
Test condition: over flow rate: each output 0.07L/min. when spray water, from the middle point , with an angle of 60degree. The sample was mounted on the middle of the circle.
Constant water springting for 10 minutes b. Sprining water experiment
Equipment: manual water sprinting equiment, please refer to the chapter 2.14 in this book.
Sample mounting :
Experiment condition:
Experiment time: calculated according to the area of the cabinet shell.
Method: water pulling test
Thriving water pulling test
Equipment and sample position:
Experiment condition: same as the condtion a of 3 IPX3.
The spring area is with a 90 degree angle, then spring to the ample which is mountintg in the middle of the circle.
Experiment time:
Method: water spring experiment
Experiment Equipment: diameter of spring tube is 6.3mm, refer to 2.14 in this book
Experiment condition:
Experiment time:
Method:
Experiment Equipment:
Experiment:
Method:
Experiment equipment, condition: water tank, distance from the bottom of sample to the surface of the water should be 1m at least.
Experiment time: 30min
(8)IPX8
Method:
Experiment equipment, condition and time:
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