What two components should be identified before working on electrical circuits?

Before engaging in work on electrical circuits, it is essential to identify both the circuit breaker and the ground. The circuit breaker serves a critical role as it acts as a protective device that interrupts current flow in the event of an overload or short circuit, preventing potential hazards such as electrical fires or equipment damage. Knowing the location and status of the circuit breaker allows the worker to ensure that the circuit is de-energized before any intervention.

Grounding is equally important in electrical safety. It provides a safe path for electrical current to dissipate into the earth in case of faults. Understanding the grounding system helps protect individuals from electric shock and ensures that equipment operates safely without the risk of electrical interference. Identifying these two components promotes a thorough understanding of the electrical system’s protective measures and enhances overall safety during maintenance or repair work.