What is the first step in identifying phase rotation?

The first step in identifying phase rotation is to shut off and lock out the power source. This is crucial for safety, as working with electrical systems can present significant hazards, including the risk of electric shock or arc flash. By ensuring that the power is off and secured, technicians can safely proceed to measure voltages, inspect wiring, or connect any testing equipment such as a phase rotation meter without risk of injury.

This initial step is foundational to maintaining safety protocols in electrical work, which is prioritized in all industry guidelines and standards. Having a secure environment allows for accurate assessments and measurements during the subsequent steps in identifying phase rotation.