How many volts are typically present in a residential electrical outlet?

Residential electrical outlets in the United States typically supply 120 volts. This voltage is standard for most household appliances and devices. Understanding this is crucial for any electrician or individual working with electrical systems, as using the correct voltage ensures appliances function properly and safely.

The 120-volt standard is suitable for common household items such as lamps, televisions, and small kitchen appliances. It is designed to provide sufficient power for these devices while minimizing the risk of electrical shock and ensuring that the wiring used in homes can safely handle the load.

In contrast, higher voltages like 240 volts are usually reserved for larger appliances such as dryers or ovens, and voltages like 480 volts are typically found in industrial settings. Therefore, knowing that residential outlets are generally at 120 volts is essential for safe electrical work and home management.