What should be done before working on electrical circuits?

De-energizing the circuit and implementing a lockout/tagout procedure are critical steps before working on electrical circuits because they help ensure the safety of the worker. When a circuit is de-energized, it means that there is no electric current flowing through it, substantially reducing the risk of electrical shock or accidental energization during maintenance or repair work.

The lockout/tagout procedure adds an extra layer of safety by physically securing the power source and marking the circuit to prevent it from being inadvertently turned back on while someone is working on it. This protocol protects not only the worker but also others who may be in the vicinity.

While wearing safety goggles and gloves, checking for signs of damage, and notifying others of the circuit work are important safety practices, they assume that the circuit is already safe to work on. Ensuring the circuit is completely de-energized and secured is the foundational step that establishes a safe working environment for any electrical tasks. Therefore, this approach is paramount and should always be prioritized when working on electrical systems.