What is the minimum degree of protection required for electrical equipment exposed to mechanical impact?

The minimum degree of protection required for electrical equipment exposed to mechanical impact is defined by the IP (Ingress Protection) rating system, which consists of two digits. The first digit indicates the level of protection against solid objects, while the second digit refers to the protection against moisture.

For equipment exposed to mechanical impact, a rating of IP54 is crucial because it signifies that the device is protected against limited dust ingress (not completely dust-tight) and against water splashes from any direction. This level of protection is essential for ensuring the equipment's durability and reliability in environments where it may be subjected to physical impacts or splashes, thus maintaining its functionality and safety.

Higher ratings, such as IP64 or IP74, indicate progressive levels of protection but are not explicitly required for basic exposure to mechanical impact. Equipment would generally need to meet IP54 standards to ensure it remains operational under typical conditions where it might experience such mechanical stresses and potentially wet conditions without failure.