When working with electrical circuits, what is the safest general practice?

Disconnecting power before starting work on electrical circuits is the safest general practice because it eliminates the risk of electrical shock or electrocution. Working on live circuits poses a significant hazard, as even a momentary lapse in attention can result in serious injury. By ensuring that the power is off, one can confidently handle wires and components without the threat of electrical current flowing through them.

When preparing to work on any electrical system, it is crucial to first identify and disconnect the source of power. This not only ensures personal safety but also allows for a more thorough inspection and repair process without the concern of accidental activation of the circuit.

Wearing rubber gloves, while it can provide an additional layer of safety when working on live circuits, does not eliminate risks completely if power is not disconnected. Similarly, toggling switches on and off can create unpredictable conditions, increasing the danger of electric shock. Therefore, the safest approach is always to disconnect power entirely before starting any electrical work.