What is one key responsibility of a Qualified Electrical Worker?

Determining the voltage of live circuits is a key responsibility of a Qualified Electrical Worker because it is critical for ensuring safety and proper functioning in electrical work. This ability allows the worker to assess the condition of the electrical system and to identify potential hazards. By accurately measuring voltage levels, a Qualified Electrical Worker can make informed decisions regarding the safe handling or maintenance of electrical systems. This skill helps prevent electrical accidents and injuries, ensuring that all work complies with established safety standards and protocols.

While the other responsibilities listed, such as installing solar panels, inspecting electrical tools, and assessing load calculations, are also important tasks that may be associated with electrical work, they do not specifically encompass the unique duty of evaluating live voltages, which is vital for maintaining safety in the workplace. Determining voltage directly relates to the immediate safety of the worker and the integrity of the electrical system being worked on.