Electrical extension cords should be sized based on which criteria?

The correct choice highlights three critical factors: connected load, voltage drop, and location of use.

Connected load refers to the total wattage of all devices that will be powered by the extension cord. Proper sizing ensures that the extension cord can safely handle the electrical load, preventing overheating and potential hazards.

Voltage drop is another important consideration. As electricity travels through the cord, some voltage is lost, especially over long distances. If the voltage drop is excessive, it can lead to underperformance of the equipment being powered and can be harmful to the devices.

Location of use is crucial as well; cords used outdoors or in wet environments require specific construction to be safe and functional. Knowing the environment helps in selecting a cord that is properly rated for the intended location.

Overall, these factors are essential to ensure safe, efficient operation of electrical equipment connected via extension cords. The other options do not provide the comprehensive assessment needed for selecting extension cords in commercial settings.