What is prohibited from being used in the working space of electrical installations?

In the context of electrical installations, the correct answer highlights the importance of maintaining a safe and functional working space free from obstructions that could pose hazards to workers or interfere with operations. Storage of non-essential items is prohibited because it can restrict access to electrical panels, increase risk of accidents, and create potential fire hazards.

Ensuring clear workspaces allows for better maneuverability, ensures that emergency equipment is readily accessible, and promotes a culture of safety among workers. Tools and personal protective equipment are necessary for performing tasks safely and effectively, while electrical panels are critical components that require easy access for maintenance and operation. Thus, having anything stored in the working area can compromise safety and efficiency on site.