1.The sockets for household users must use a 220V or 220-240V voltage power supply, choose sockets with matching rated currents, and be equipped with sufficient cross-sectional wires.
2.The contact between the plug and socket must be sturdy and reliable, and cannot be loose. And a fuse holder with appropriate current should be installed on the dedicated circuit to prevent poor contact caused by the circuit being too thin, which may lead to leakage and ignition.
3.The socket must have waterproof protection to prevent water from splashing into the socket during use, causing electrical leakage.