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CEI EN 62262 (CEI 70-4) standard describes a method for classifying degrees of protection of enclosures for electrical equipment against external mechanical impacts
when the rated voltage of the protected equipment is not greater than 72.5 kV.
This Standard is the reprint of the CEI EN 50102 of 1996 (and relative Variante 1 of 1999), from which it differs only for the classification, but not for the content, in accordance with the CENELEC Corrigendum of July 2002 to EN 50102 and relative Change A1.
This Standard is applicable only to enclosures for equipment for which specific Standards establish degrees of protection against mechanical impacts.
The degree of protection IK is the degree of protection against external mechanical impacts, ie the effect of a mechanical energy that is discharged on the outside of the container.
This classification identifies the degree of robustness of the electrical panel.
Since the test can be performed on the most stable points or on the most sensitive points of the container, different IK codes can be obtained depending on the test modes.
The degree of impact protection indicated by the manufacturer of the empty container must guarantee the maintenance of the IP protection degree established by the manufacturer (protection against the penetration of external solid bodies and water).
The IP protection level can be lowered to obtain a code IK is higher, but a high IK code can not be specified if the IP rating is compromised.
IK DEGREE - Ref: EN 62208 ; EN 62262
| IK Degree | Impact energy (J) | Equivalent impact |
| 0 | No protection | Not applied |
| IK01 | 0,14 | Fall of a 200g body from 7,5cm of height. |
| IK02 | 0,2 | Fall of a 200g body from 10cm of height. |
| IK03 | 0,35 | Fall of a 200g body from 17,5cm of height. |
| IK04 | 0,5 | Fall of a 200g body from 25cm cm of height. |
| IK05 | 0,7 | Fall of a 200g body from 35cm of height. |
| IK06 | 1 | Fall of a 500g body from 20cm of height. |
| IK07 | 2 | Fall of a 500g body from 40cm of height. |
| IK08 | 5 | Fall of a 1,7kg body from 29,5cm of height. |
| IK09 | 10 | Fall of a 5kg body from 20 cm of height. |
| IK10 | 20 | Fall of a 5kg body from 40 cm of height. |
| IK11 | 50 | Fall of a 10kg body from 50 cm of height. |
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