Technical advices

How to prevent entry to an electrical panel with accessible active parts

Electrical panel protection: prevent entry to accessible active parts

Where a panel contains regulating membersequipment that is not protected from direct contact or accessible active parts, access to these parts must only be granted to authorised persons with sufficient technical knowledge and experience to avoid electrocution hazards (authorised persons).

According to IEC 64-8/4, access to the panel is possible if one of the following requirements is met:

It is understood that the key is considered in a single copy, or in limited number, and entrusted to trained and authorized personnel.

However, in the event that a panel with accessible dangerous parts is installed in a room also open to unauthorised persons, it is mandatory to set up an interlocking system.

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