What is essential to follow before starting any troubleshooting process in electrical systems?

Before starting any troubleshooting process in electrical systems, it is crucial to ensure that the power is off and follow safety precautions. This is foundational to electrical safety, as working on live equipment poses significant risks, including electric shock, burns, or fatal accidents. Ensuring that the power is turned off minimizes these risks and provides a safer working environment.

Additionally, following established safety protocols such as using appropriate personal protective equipment (PPE) and working with insulated tools adds an extra layer of protection. Performing troubleshooting with the power on can lead to unintended consequences, such as interfering with the system's operation or causing further damage.

While wearing gloves, disconnecting components, and reviewing system diagrams are all important steps in specific contexts, they do not supersede the absolute necessity of ensuring that power is turned off. This commitment to safety is fundamental to any responsible approach to electrical troubleshooting.