What is the recommended voltage for most household electrical systems?

The recommended voltage for most household electrical systems is 120 volts. This standard voltage is widely used in residential wiring across many regions, particularly in the United States and Canada. It is optimal for powering common household appliances and devices, such as lights, televisions, and computers, providing a balance of safety and efficiency.

Using 120 volts helps minimize the risk of electrical shock while ensuring adequate power delivery for everyday equipment. Higher voltages, such as 240 volts, are generally reserved for heavy-duty appliances like dryers and ovens, which require more power to operate effectively. The other options, 480 volts and 60 volts, are not standard for typical household use; 480 volts is typically found in industrial setups, while 60 volts does not provide sufficient power for general household needs. Thus, the choice of 120 volts aligns with common practices in residential electrical systems.