What tool is essential for ensuring electrical safety during installation?

Lockout/tagout procedures are essential for ensuring electrical safety during installation because they serve as a critical method for isolating energy sources from equipment and systems. This process involves properly shutting down and securing machines or electrical systems to prevent accidental energization while repairs or installations are being performed. By following lockout/tagout procedures, workers can significantly reduce the risk of electrical shock, accidental machinery start-up, and other potential hazards associated with working on live circuits.

In contrast, while a multimeter is a useful tool for measuring electrical values and troubleshooting issues, it does not inherently ensure safety during installation. A screwdriver is typically used for fastening or loosening screws but does not address safety concerns. A wire cutter is essential for cutting wires, but again, it doesn't contribute to the preventative measures needed to ensure safety during electrical work. Thus, effective implementation of lockout/tagout procedures is a fundamental practice for maintaining electrical safety in any installation environment.