Risk reduction of electrical hazards

A method for risk reduction of electrical hazards comprising:

• switching electrical power with a power switch from a line-side power line to a load-side power line inside an enclosure, wherein said load-side power line is configured to transfer said electrical power outside of said enclosure to an industrial control panel, and said power switch is mounted inside said enclosure;
• determining with a controller a presence and an absence of each of a plurality of phases of said electric power on said load-side power line inside said enclosure, wherein said controller is coupled to said power switch;
• and
• illuminating one or more lamps of a detector to indicate said absence of said electrical power on a corresponding one or more of said plurality of phases in response to pressing a switch on said detector, wherein said detector is coupled to said controller, said switch of said detector is accessible from external to said enclosure, and said one or more lamps of said detector are visible from external to said enclosure.