Impact Protection (IK) Testing

The impact resistance (IK) test enables us to determine the resistance to the impact of the products. The impact resistance test enables us to measure the amount of energy absorbed by a material during fracture. By measuring the energy absorbed as the crack lengthens, the material’s toughness and resistance to crack extension are determined. Basically, By performing the test we come to know about the toughness of the material. The impact value of a material can also change with temperature. The impact value of the material can change with various environmental conditions such as temperature. Generally, at lower temperatures, the impact energy of a material is decreased. Testing is valuable in determining whether there is a danger of catastrophic failure when a material is impacted. It means that after the impact the enclosure should continue to operate and maintain its level of safety and specified technical characteristics such as IP rating. The IK ratings are defined in En 62262 standard. The IK rating is an international standard that indicates how resistant a product is to impact. IEC 62262 specifies how the enclosure must be mounted for testing, the atmospheric conditions required, the quantity and distribution of the test impacts, and the impact hammer to be used for each level of IK rating. This rating is expressed with the digits IK followed by digits between 1 and 10. The IK coding shows the degree of protection against external mechanical impacts. Each digit determines the impact to be applied to the sample. The higher the digit, the greater the impact. IK code indicates the protection level of the shell against harmful mechanical collisions with the outside world, several methods can be used in the test changing the way in which impact is made.

The most common types of materials which are used in such kinds of tests are metals, plastics, woods, composites, ceramics, and polymers. The impact can be caused as the result of a free fall or using a pendular hammer. The impact is proportional to the relative velocity and masses of the colliding object. The results of such tests are expressed in units of J/m2. The impact energy measured in joules depends on two factors: the distance between the impacting object and the sample being tested and the weight of the impacting object. This energy may be used to determine the toughness, impact strength, fracture resistance, impact resistance, or fracture resistance of the material depending on the test. The purpose of the test is to determine the maximum impact that an enclosure is able to withstand without alterations to its technical specifications. The impact resistance test is used in transportation, construction, and agriculture equipment that are subjected to impact and shock loads during sudden below and stoppages.

Impact Protection (IK) Rating Levels

00 – No impact protection
01 – Protected against 0.14 joules impact  (similar to 0.25kg mass dropped from 56mm high)- IK01 Testing, IK01 Certification
02 – Protected against 0.2 joules impact  (similar to 0.25kg mass dropped from 80mm high)- IK02 Testing, IK02 Certification
03 – Protected against 0.35 joules impact  (similar to 0.25kg mass dropped from 140mm high)- IK03 Testing, IK03 Certification
04 – Protected against 0.5 joules impact  (similar to 0.25kg mass dropped from 200mm high)- IK04 Testing, IK04 Certification
05 – Protected against 0.7 joules impact  (similar to 0.25kg mass dropped from 280mm high)- IK05 Testing, IK05 Certification
06 – Protected against 1 joules impact  (similar to 0.25kg mass dropped from 400mm high)- IK06 Testing, IK06 Certification
07 – Protected against 2 joules impact  (similar to 0.5kg mass dropped from 400mm high) - IK07 Testing, IK07 Certification
08 – Protected against 5 joules impact  (similar to 1.7kg mass dropped from 300mm high) - IK08 Testing, IK08 Certification
09 – Protected against 10 joules impact  (similar to 5kg mass dropped from 200mm high) - IK09 Testing, IK09 Certification
10 – Protected against 20 joules impact  (similar to 5kg mass dropped from 400mm high) - IK10 Testing, IK10 Certification

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