Abstract: Apparatuses and methods for testing electrical wiring of a device are provided. In one example, the device has a conductive portion, an electrical component, and a multiphase plug that is electrically coupled to a neutral conductor and at least two phase conductors. The neutral conductor is coupled to the conductive portion and the at least two phase conductors are coupled to the electrical component. The apparatus includes a receptacle that removably couples to the multiphase plug. A grounding cable removably couples to the conductive portion. A power supply generates power and is in electrical communication with the receptacle to communicate the power to the receptacle. An annunciator is in electrical communication with the power supply and the grounding cable and is configured to generate a response when the receptacle, the multiphase plug, the conductive portion, and the grounding cable are in electrical communication to communicate the power therethrough.