Under what circumstances will the socket load be exceeded? Do you know how to calculate? The total amount of current that can be tolerated is indicated on the general socket or extension cord. The total current is the sum of the divided currents. If it exceeds this safe capacity, it will generate heat and even burn the insulation rubber of the wire, causing a fire. This is why the power-hungry appliances cannot be plugged into the same extension cord at the same time!
※How to confirm whether the load is exceeded? Power (W) can be found on the appliance label, assuming an electric pot power of 660W, a thermos bottle of 660W, an electric iron of 770W, a rated voltage of 110V ➡ A current value (A) = power consumption (W) / voltage (V). Then the total current at the same time: (660W / 110V) + (660W / 110V) + (770W / 110V) = 19A ➡ The total current is 19A, exceeding the extension line load (12A) and the wall socket allowed maximum safety current (15A). Therefore, it may be dangerous! These appliances cannot be plugged together at the same time!