What does "electrical work" encompass?

Electrical work encompasses a broad range of activities related to electrical systems. The correct choice highlights that this work includes not just the installation of new systems, but also the ongoing maintenance and repair of existing systems.

This definition is critical because electrical work is not limited to just one aspect; it involves ensuring that electrical systems are functioning safely and efficiently throughout their lifespan. This includes assessing and managing system performance, troubleshooting issues, and performing necessary repairs or upgrades to meet current safety standards or technological advancements. By understanding that electrical work includes installation, maintenance, and repair, professionals in the field can better prepare for the varied tasks they will encounter in their careers, advocating for best practices and adherence to safety protocols.

The other options suggest a more limited scope, which would not align with the comprehensive nature of electrical work as recognized in industry standards and practices.