What is the typical voltage supplied in residential electrical systems?

In residential electrical systems, the typical voltage supplied is 120 volts. This standard voltage is used for most household appliances and electrical devices, providing a safe and effective level for home usage. The 120 volts allows for adequate power supply for lighting, outlets, and smaller appliances, ensuring compatibility with the wide variety of equipment utilized in residential settings.

While 240 volts is also present in some residential systems, particularly for larger appliances like dryers and ovens, the common household outlets operate at 120 volts. Higher voltages, such as 480 volts, are primarily used in industrial or commercial settings rather than residential applications. The choice of a lower voltage for residential use is based on safety considerations, making it less hazardous for everyday use and allowing for easier insulation and management of wires and circuits.