What is considered normal residential voltage?

Normal residential voltage in the United States typically consists of two standard values: 120 volts for most general-purpose outlets and 240 volts for larger appliances such as dryers and ovens. This configuration allows for both the low voltage necessary for lighting and small appliances, and a higher voltage for powering more substantial equipment that requires greater energy consumption.

The 120/240 V standard is widely accepted in residential settings because it provides a versatile electrical system that can accommodate a variety of devices and uses found in homes. This dual voltage system is effective for residential wiring and meets the electrical needs of most households.

Other options represent voltages that are not standard for typical residential use. For instance, voltages like 240/480 V are common in commercial and industrial applications, while 110/220 V might reflect historical standards, but they are not the current recognized norms in residential wiring. Additionally, 300/600 V pertains to specific industrial equipment or lighting circuits and is not applicable to standard residential systems.