What is a key safety practice when working with electrical systems?

A key safety practice when working with electrical systems is to always turn off power before servicing equipment. This practice minimizes the risk of electric shock or electrocution when individuals are working on circuits or devices. De-energizing the equipment ensures that no current is flowing through the system, thereby protecting the technician during maintenance or repairs.

When power is turned off, it allows for safe inspection, troubleshooting, or replacement of components without the immediate danger of electric arcs or other electrical hazards. Additionally, locking out or tagging out the equipment after turning off the power serves as a precautionary measure to prevent accidental re-energization while work is being carried out.

Working with live circuits, even for checking connections, poses significant risks and is generally unsafe. Non-conductive gloves can provide some degree of protection, but they do not eliminate the danger associated with live equipment, nor do they substitute for the necessity of de-energizing circuits. Lastly, while working in dry conditions is a beneficial practice, it does not address the principal safety concern of ensuring equipment is powered down before service.