In most residential areas, the standard voltage supplied to home appliance power plugs is 120 volts in North America, and 230 volts in Europe, Asia, and other parts of the world. These voltages are provided by the respective power grids in their regions.
However, it's important to note that voltage can sometimes fluctuate due to various factors such as power grid variations, load demand, or electrical disturbances. The voltage supplied to your home may experience minor fluctuations but should generally remain close to the standard values.
To ensure the safety of your home appliances and electronic devices, it's a good idea to check the voltage rating on each appliance and make sure it matches the voltage supplied in your region. Additionally, surge protectors or voltage stabilizers can be used to protect your sensitive electronic equipment from voltage spikes and fluctuations.