1. The power socket should be a product that has been inspected and qualified by the relevant national product quality supervision department. Generally, mid-to-high-end products with flame-retardant materials should be used, and low-grade, fake and inferior products should not be used;

2. Electrical power sockets in residences should be safe sockets, and splash-proof sockets should be used in wet places such as toilets;

3. The rated current of the power socket should be greater than 1.25 times the rated current of the known equipment used. Generally, the rated current of single-phase power socket is 10A, and the special power socket is 16A. The power distribution circuit and connection method of special high-power household appliances should be selected according to the actual capacity;

4. For the convenience of plug-in, a 86mm×86mm unit panel, the number of combined sockets should be two, and the maximum (including switches) should not exceed three, otherwise 146 panel multi-hole sockets are used;

5. For household appliances (such as washing machines) that have a risk of electric shock when plugging in the power supply, a socket with a switch to disconnect the power supply should be used.

6. In a relatively humid place, the waterproof box should be installed at the same time when installing the socket.