What must equipment cords be arranged to prevent when hanging in commercial garages?

The correct choice highlights the importance of safety regarding electrical equipment in commercial garages. Equipment cords must be arranged to prevent energization while connections are being made because this poses a significant risk of electrical shock or short circuits. When workers are connecting or disconnecting equipment, the cords should not be energized to ensure that they can safely handle the equipment without the risk of electric current flowing through them. This safety measure is crucial in environments where moisture or flammable materials may be present, increasing the likelihood of hazards.

In contrast, while preventing movement of the cord, sagging below a certain height, and interference with vehicles are all relevant considerations for safety and practical use, they do not directly address the critical issue of electrical safety during the connection process. Ensuring that cords are not energized while being connected is paramount to protecting workers and maintaining a safe working environment in a potentially hazardous space like a commercial garage.