Which type of damage must electrical equipment enclosures be protected from?

Electrical equipment enclosures must be protected from physical damage to ensure the safety and integrity of the electrical system. Physical damage can result from impacts, drops, or other mechanical forces that could compromise the enclosure’s ability to prevent access to live parts or to maintain the functionality of the equipment inside. Enclosures designed without adequate protection against physical damage might fail, leading to electrical hazards, equipment malfunction, or even fire.

While other types of damage, such as water, thermal, or chemical, can also affect electrical equipment enclosures, in this context, the focus is specifically on the potential for mechanical impact and stresses that may physically affect the enclosure's structure. Providing the right level of physical protection is essential, particularly in environments where equipment may be exposed to bumps, vibrations, or accidental contact.