Provided is a plug of a grid-side power cable assembly connected to a cable installment type charging control device for charging an electric vehicle by using power of a grid-side. In one embodiment, the deposited film is completely converted to oxide. If the measured weight substantially disagrees with the calculated total weight, error information is provided to the operator to correctly package the articles. The decay factor maintains the gear ratio for a delayed period of time before gradually reducing the gear ratio over time.