跳至主要内容

IP code system-the second characteristic numerals

IP code is a system to indicates the protection provided by enclosure against access to hazard parts, ingress of solid foreign objects, ingress of water and so on. Refers to IEC60529, the second characteristic numerals indicates the degrees of protection against ingress of water, and show as numerals from 0 to 8. Omitting first characteristic numerals, the degrees of waterproof can be show as below:

IPX0: no protection
IPX1: protected against vertically falling water drops.
IPX2: protected against vertically f all water drops when enclosure titled up to 150.
IPX3: protected against spraying water. 
IPX4: protected against splashing water. 
IPX5: protected against water jet.
IPX6: protected against powerful water jet.
IPX7: protected against the effects of temporary immersion in water.
IPX8: protected against the effects of continuous immersion in water. 

The test for IPX1 and IPX2 are made with a drip box which produces flow of water drops over the enclosure. The enclosure under test should put in the support base, and the base should be smaller than enclosure under test. The difference between IPX1 and IPX2 is the flow of water drops, and the IPX2 requires the enclosure is test for 2.5 min in each of four fixed positions of tilt rather turn the base as IPX1. The duration of the both tests is 10 min.

The test for IPX3 and IPX4 are made with the oscillating tube or spray nozzle. The tests require the oscillating tube is provided with spray holes over an arc of 60 (IPX3) or 180 degrees (IPX4), the enclosure under test is placed in the center point of the semicircle. The numbers of spray hole is depends of the tube radius (refers to IEC60529 table 9), but the tube radius can be not more than 1.6m. The test duration for IPX3 and IPX4 are 5 min and 10 min separately. If oscillating tube can not wet all parts of the enclosure under test, the hand-held spray nozzle should be used.

The test for IPX5 and IPX6 are made with 6.3mm and 12.5mm nozzles separately. The delivery rate of IPX5 test is 12.5l/min, and IPX6 test is 100l/min. The minimum test duration for both test is 3 min, the distance from nozzle to enclosure surface is between 2.5m and 3m. 

The test for IPX7 and IPX8 are made with the immersion tank. IPX7 indicates temporary immersion between 0.15m and 1m, the enclosure should be immersed in water completely for 30 min. If the lowest point of enclosures with a height less than 850mm is located 1m below the surface of the water. If the highest point of enclosures with a height equal to or greater than 850mm is located 0.15m below the surface of the water. IPX8 indicates continuous immersion, the test conditions are subject to agreements between user and manufacturer. 

All the tests are conducted with fresh water. Pego can provide lab design accordingly.
 
标签：

评论

发表评论

此博客中的热门博文

How to conduct the ESD test?

  What is ESD test? Electrostatic discharge immunity test is a basic EMC test . S tandard IEC61000-4-2 provide the immunity requirements and test methods for electrical and electronic equipment subjected to static electricity discharges, from operators directly, and to adjacent objects . T he standard establish a common and reproducible basis for evaluating the performance of electrical and electronic equipment when subjected to electrostatic discharges. Electrostatic discharge is a transfer of electric charge between bodies of different electrostatic potential in proximity or through direct contact. The standard IEC61000-4-2 does not intend to specify the tests to be applied to particular apparatus or system, it is to give a general basic reference to all concerned product .   S o before conduct the test, an appropriate test level should be selected according to the product's characters and its working occasion.   Contact discharge and air discharge methods The test leve...
发表评论
阅读全文

The relationship between standards IEC62262 and IEC60068-2-75

  The IK code is a coding system to indicate the degree of protection provided by an enclosure against harmful external mechanical impacts. The standard IEC62262 defines the impact energy corresponding to different IK codes. In general, the degree of protection applies to the complete enclosure. If parts of the enclosure have differing degrees of protection, the latter shall be indicated separately. IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10 IK11 0 0.14J 0.2J 0.35J 0.5J 0.7J 1J 2J 5J 10J 20J 50J IK00 - no protection IK01 - withstands 0.14J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 56mm on the surface) IK02 - Withstand 0.2J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 80mm on the surface) IK03 - Withstand 0.35J impact force (equivalent to the impact of an object weighing 0.2KG falling from a height of 140mm on the surface) IK04 - Withstand 0.5J impact force (equivalent to t...
发表评论
阅读全文

The relationship between standards IEC62262 and IEC60068-2-75

  The IK code is a coding system to indicate the degree of protection provided by an enclosure against harmful external mechanical impacts, the standard IEC62262 defines the impact energy corresponding to different IK codes. In general, the degree of protection applies to the complete enclosure. If parts of the enclosure have differing degrees of protection, the latter shall be indicated separately. IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10 IK11 0 0.14J 0.2J 0.35J 0.5J 0.7J 1J 2J 5J 10J 20J 50J IK00 - no protection IK01 - withstands 0.14J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 56mm on the surface) IK02 - Withstand 0.2J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 80mm on the surface) IK03 - Withstand 0.35J impact force (equivalent to the impact of an object weighing 0.2KG falling from a height of 140mm on the surface) IK04 - Withstand 0.5J impact force (equivalent to ...
发表评论
阅读全文