
The IEC 62262 standard published by the International Electrotechnical Commission (IEC) describes the classification of the degrees of protection provided by enclosures against external mechanical impacts when the rated voltage of the protected equipment is not greater than 72,5 kVolts. The full name of this standard is: IEC 62262 Degrees of protection provided by electrical equipment enclosures against external mechanical impacts (IK code). This standard only applies to equipment enclosures where the specific standard specifies the degree of protection of the enclosure against mechanical impact.

The IEC 62262 standard defines a system for classifying the degrees of protection provided by electrical equipment enclosures against external mechanical impacts. This system is suitable for use with most types of electrical equipment. However, it should not be assumed that all the listed degrees of protection apply to a particular type of equipment. It is necessary to consult the manufacturer of the equipment to determine the available degrees of protection and the parts of the equipment to which the specified degree of protection applies.
This classification system should be adopted wherever possible to promote uniformity in methods of describing the protection afforded by the enclosure and in testing to verify various degrees of protection. There is also a need to reduce the number of tester types required to validate a wide range of products.
The IK code or impact rating is an international numerical classification for the degrees of protection provided by electrical equipment enclosures against external mechanical impact. This system provides a way to determine the capacity of a container to protect its contents from external influences. The IEC 62262 standard describes how enclosures should be mounted when testing, the atmospheric conditions that must prevail, the number of blows and their distribution, and the various types of hammers designed to produce a variety of sizes, styles, materials, sizes and required energy levels.
In the IEC 62262 standard, the impact test specifications for the 07 IK code are determined as follows:
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