Do you know that there are several electrical circuits in your home? What is a circuit? You can look at the distribution box (the main switch box) in the house. Each switch inside represents a circuit (a set of positive and negative wires) that can be connected to several sockets to supply power, or represent a dedicated circuit with only one socket, used to independently supply power for high-power appliances (such as air conditioners, microwave ovens, electric water heaters, etc.). The switch will indicate the total current (amperage) that can be carried, representing the total current (total amperage) of the appliances in the same circuit at the same time. When the load is exceeded, the switch will automatically trip to protect. In addition, it is better to install a "leakage circuit breaker" for the dedicated circuit such as kitchen, bathroom, balcony, etc., and the power will be automatically cut off to ensure safety.

※ the picture from TPC Fan Page