What does the term "live-line work" refer to?

The term "live-line work" specifically refers to tasks carried out on electrical lines that are energized, meaning they are still carrying electrical current and are operational. This type of work is typically performed by trained professionals who use specialized techniques and protective equipment to ensure their safety while working in proximity to high-voltage lines.

By performing live-line work, electricians can conduct maintenance, repairs, or upgrades without interrupting the power supply, which is crucial in maintaining service to customers and ensuring that essential systems remain operational. This practice demands a high level of training and adherence to safety protocols to mitigate the risks associated with working near energized equipment.

Other choices describe different scenarios, such as working on powered-off equipment or inspecting tools, which do not involve the same level of risk and technical skill required in live-line work.