What should be done before beginning any electrical work?

Before starting any electrical work, performing a risk assessment and ensuring that the power is turned off is crucial for safety. This practice involves identifying potential hazards associated with the specific task and assessing the risks involved. It ensures that measures are in place to prevent electrical shock, equipment damage, or accidents that could harm workers or others nearby.

Turning off the power eliminates the immediate risk of accidental electrocution or short-circuits while working on or near live circuits.

Though checking weather conditions, notifying nearby workers, and inspecting the work area for cleanliness are important safety considerations, they do not address the primary and immediate hazards associated with electrical work in the same direct manner as turning off the power and assessing risks do. Therefore, option B is comprehensive and vital for ensuring a safe working environment before any electrical tasks commence.