What is the IK Rating?

December 07, 2022

Usually IK and IP protection requirements appear together. For outdoor electronic equipment, whether it is overhead, buried or ordinary outdoor placement, corresponding IP and IK requirements are required. The IK rating is determined by the free-falling impact of a pendulum in joules. The specific reference standard is the protection level of the electrical equipment enclosure against external mechanical impacts (IK code).

In the lighting industry, street lamps, explosion-proof lamps and some special lamps need to be tested for the IK protection level of the lamp shell between IK05 and IK10, especially for the tests of IK07, IK08, IK09 and IK10. The purpose of the test is mainly to check whether the protection level of the shell of lighting products meets the requirements of the industry and the country.

Standards and methods for testing IK grades of lamps and lanterns

IEC62262 (specify how to install the object under test when doing IK protection level test, ventilation condition requirements, the number and distribution of impact hammers and the impact hammers corresponding to each level), IEC60598 (GB7000) and IEC60068-2-75 (GB2423.55) standards The following is about the application of IK testing for lighting products. These relevant standards mainly regulate the relevant test procedures and usage methods of lighting products in IK protection level testing, and finally meet the requirements for testing whether the products are qualified.

In the IEC62262 protection level code, the IK code indicates the protection level of the shell against external harmful mechanical impacts, and the combination of characteristic numbers is: 01 to 10, namely: IK01, IK02, IK03, IK04, IK05, IK06, IK07, IK08, IK09 and IK10 . In these 10 grades, there are two groups of tests according to different test levels: the first group is the spring impact hammer test from IK01, IK02 to IK06, and the energy of this group of tests is small (from 0.14J to 1J); One group is the big pendulum test from IK07, IK08 to IK10, and the energy of the test is relatively large (ranging from 2J to 20J).

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