What type of sign must be posted at all electrical installations to indicate danger?

The requirement for posting suitable danger signs at all electrical installations is crucial for ensuring safety and awareness regarding potential hazards associated with electrical equipment and systems. These signs serve as vital indicators that alert personnel and visitors to the presence of electrical dangers, which can pose serious risks such as electric shock or equipment malfunction.

Suitable danger signs typically feature clear, recognizable symbols and color coding (often red or yellow) that convey warnings effectively. This compliance with safety standards helps not only to alert personnel about the specific danger but also reinforces the appropriate precautions that should be taken when working near electrical installations.

While general hazard signs may indicate various risks, and warning hazard signs provide cautionary messages, they might not convey the specific hazards associated with electrical installations as effectively as suitable danger signs. Fire hazard signs are designed specifically for fire-related dangers and do not address electrical risks. Thus, using suitable danger signs ensures the most effective communication of the specific dangers present in electrical environments.