IP Protection (dust / water / preservative)
IP protection class
2014-01-17 19:01:29

Protection class in industrial applications, typically: IP65, IP68, but for the most advanced. protection class IP54 is a low grade, IP marked letters, numbers, marking the first 5 digits, four digits for the second marking the first mark number indicates contact protection and foreign matter protection level, marking the second number indicates protection against water level;

 

  

 

Contact protection and foreign matter protection level (first number) Waterproof protection level (the second number)
Name Protection range Explanation Name Protection range Explanation
0 No protection - 0 No protection -
1 50mm diameter and greater protection of solid foreign bodies Detectors, ball diameter 50mm, not full access 1 Protection of water droplets Vertically falling drops of water should not cause damage
2 12.5mm diameter and greater protection of solid foreign bodies Detectors, the sphere diameter 12.5mm, should fully into 2 When the cabinet tilted 15 degrees, protection of water droplets When the cabinet to either side of the tilt angle of 15 degrees, the vertical falling water droplets should not cause harm
3 2.5mm diameter and greater protection of solid foreign bodies Detectors, ball diameter 2.5mm, should fully into 3 Protection of water splashing 60-degree angle from the vertical lines on both sides of the water should not cause damage spills
4 1.0mm diameter and greater protection of solid foreign bodies Detector, the sphere diameter is 1.0mm, full access should 4 Protection Spray Alignment spray in each direction from the cabinet should not cause damage
5 Protective dust Impossible to completely prevent dust from entering, but the amount of dust entering the device will not cause harm 5 Protection shoot water Alignment of the cabinet shot from every direction should not cause water damage
6 Dust closed Inner cabinet 20 millibar low pressure should not enter the dust 6 Protective strong water jet Alignment of the cabinet strong shot of water from every direction should not cause damage
Note: The diameter of the probe through the hole of the cabinet should not be 7 Short-term immersion protection When the cabinet in the short-term immersion in water under normal pressure, there should not be immersed in water can cause damage
8 Protective long-term immersion May be immersed in water under certain conditions, should not be able to cause damage to the water immersion

 

Ingress Protection IP is an abbreviation, IP rating is for electrical equipment enclosure degree of protection against foreign invasion, the source is the standard of the International Electrotechnical Commission IEC 60529, the standard in 2004 has also been adopted as an American National Standard.  

 

In this standard, foreign body for electrical equipment enclosure protection, IP-level format IPXX, where XX is two digits, the first digit represents the contact mark protection and foreign matter protection level, and the second number indicates protection against water level mark specific level of protection can refer to the following table.  

 

IP is the international code used to identify the degree of protection Ip rating by two figures, the first number indicates the dust; the second number of said water, the higher the number the better the protection, and its leader.

 

Dustproof number degree of protection    defined

0 No protection No special protection:

1 prevent objects larger than the 50mm prevent human intrusion inadvertently touched the lamp to prevent the internal parts of the object diameter greater than 50mm invasion;

2 to prevent the intrusion of objects larger than 12mm prevent fingers touch the internal parts of the lamp;

3 to prevent the whole thing more than the 2.5mm diameter greater than 2.5mm intrusion prevention tools, wires or objects intrusion;

4 to prevent the intrusion of objects larger than the 1.0mm diameter greater than 1.0 to prevent mosquitoes, insects or objects intrusion;

5 dust can not completely prevent dust intrusion, but the intrusion of dust will not affect the amount of the normal operation of the lamp;

6 dust completely prevent dust intrusion  

Waterproof Rating   Number degree of protection defined;

0 No protection No special protection

A drop of water to prevent water intrusion prevention of vertical drop;

2 tilted 15 degrees to prevent water intrusion when the lamp is still tilted 15 degrees, to prevent water;

3 to prevent the injection of water intrusion to prevent rain, or vertical angle of less than 50 degrees into the direction of the jet of water;

4 to prevent splashing water splashing from all directions to prevent intrusion of water intrusion;

5 to prevent water intrusion prevention Big Wave Big Wave rapid blowhole spray or water intrusion;

6 Big Wave prevent water intrusion lamps invasive water pressure at a certain time or condition, you can still ensure the normal operation of the lamp;

7 to prevent the intrusion of water ingress of water fixtures indefinite sinking water under certain pressure conditions, and to ensure the normal operation of the lamp;

8 to prevent the sinking of the impact

 

IP (INTERNATIONAL PROTECTION) rating is based on the standard are:

1) by the IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) the drafting of an international protection and waterproof test standard: International Electrotechnical Commission standard IEC 529 -598

2) GB GB 700 -86

3) GB GB 4208 and so on.

 

A range of    water tests including a second characteristic numeral is 1-8, the protection class code for IPX1 to IPX8. 2, waterproof test the contents of the various levels of   (1) IPX1     method name: vertical drip test     test equipment: drip test device 2.11 and the test methods in     sample placed: the normal operating position by placing the sample in order to rotate the sample stage 1r/min, the top of the sample to the dripping mouth of not more than 200mm     Test conditions: drip volume 1 0.5 mm / min ;     Test duration: 10 min;   (2) IPX2     method name: 15 ° tilt drip test     Test Equipment: Test equipment and test methods drip see 2.11     sample placed: make a surface of the sample into a 15 ° angle with the vertical, top of the sample to drip from the mouth of not more than 200mm. After each test a finished surface, for another. . . . . Surface, a total of four.     Test conditions: drip volume 3 0.5 mm / min;     Test duration: 4 × 2.5 min (total 10 min);   (3) IPX3     method name: water spray test     test methods:     a swing-tube water spray test.       Test Equipment: pendulum tube splashing water spray test device (graphics device and test methods in this book 2.14)       sample placed: Select the appropriate swing radius of the tube, placed in the sample tube diameter table height position, the sample on the sample units on to the top of the spout to sample distance of not more than 200mm, the sample stage does not rotate.       Test conditions: Water flows swing pipe sprinkler holes calculations, each hole was 0.07 L / min. When watering, water spray sprinkler pipe holes placed on each side of the midpoint within a 60 ° arc sprayed samples. Sample is placed in the center of the oscillating tube semicircle. Placed on each side of the tube along the vertical swing 60 °, a total of 120 °. Each swing (2 × 120 °) about 4s.       Test time: continuous watering 10 min.     b nozzle type water spray test.       Test Equipment: Handheld splashing water spray test equipment, devices and test methods in this book graphics 2.14       sample placed: with the top test to a handheld nozzle spout parallel distance of 300mm to 500mm between       test conditions: baffle should test installation with balance weights, water flow was 10 L / min       Test time: According to sample shell surface area per square meter of 1 min (not including installation area), at least 5 min .   (4) IPX4     method name: splashing water test;     test methods:     a pendulum tube splashing water test.       test equipment and the sample placed: the first (3) IPX3 of a paragraph are the same;       experimental conditions: In addition to the following conditions In addition, with the first (3) IPX3 of a paragraph are the same;       spray area of sprinkler pipe placed inside the midpoint of each side 90 ° arc spray holes sprayed samples. Sample is placed in the center of the oscillating tube semicircle. Tube placed along the vertical sides of the swing 180 °, a total of about 360 °. Each swing (2 × 360 °) about 12s.       Test time: with the first (3) IPX3 of a paragraph are the same (ie, 10 min).     . b Splashing water nozzle test       equipment and test sample placed: Install the bezel with balance weights on the device should be removed, the rest of the above paragraph (3) of paragraph b IPX3 are the same;       experimental conditions: In addition to the following conditions In addition, the above paragraph (3) of paragraph b IPX3 are the same;       Testing time: with the above paragraph (3) of paragraph b IPX3 are the same, ie the sample shell surface area per square meter of 1min (excluding installation area) at least 5min.   (5) IPX5     method name: the water spray test     test equipment: water jet nozzle inner diameter of 6.3mm; devices and test methods in this book graphics 2.14     Test conditions: test samples to make the mouth water apart 2.5 ~ 3m, water flow of 12.5 L / min (750 L / h);     Test time: According to sample shell surface area per square meter of 1min (not including installation area) at least 3 min.   (6) IPX6     method name: strong water spray test;     test equipment: spray the inside diameter of the nozzle orifice is 12.5 mm; devices and test methods in this book graphics Chapter 2.14;     test conditions: test samples to make the mouth water apart 2.5 ~ 3m, water flow rate of 100 L / min (6000 L / h);     Test time: According to sample shell surface area per square meter of 1min (not including installation area) at least 3 min.   (7) IPX7    method name: short-term immersion test;     test equipment and test conditions: immersion tank. The sample size should be flooding into the box, the distance from the bottom to the surface of a sample of at least 1m. Top of the sample to the surface distance of at least 0.15 m.     Test time: 30 min.   (8) IPX8     methods: Diving test;     test equipment, test conditions and test time: by supply and demand (trading) shall be mutually agreed their severities higher than IPX7.