What is the standard voltage for most residential electrical systems in the United States?

The standard voltage for most residential electrical systems in the United States is 120/240 volts. This configuration means that in a typical home, the electrical system can provide 120 volts for standard outlets and 240 volts for larger appliances, such as dryers and ovens.

In residential wiring, the 120 volts is commonly used for lighting, outlets, and small appliances, providing a safe level of voltage for everyday usage. The 240 volts, typically achieved by using two phases from the electrical panel, is necessary for appliances that require more power to operate efficiently. This dual voltage system allows for a wide range of electrical needs in homes while maintaining safety and efficiency.

This understanding of voltage levels is essential for electricians and homeowners alike when working on electrical installations or upgrades, ensuring that the right voltage is used for the right applications.