Classification according to use:

Civil sockets, industrial sockets, waterproof sockets, ordinary sockets, power sockets, computer sockets, telephone sockets, video, audio sockets, mobile sockets, USB sockets.

Power socket: there is a plug-in sleeve designed for plugging with the plug, and an electrical accessory with a terminal for connecting the flexible cable is provided.

Fixed socket: socket used for connection with fixed wiring.

Mobile socket: intended to connect to a flexible cable or form a whole with a flexible cable, and easily move from one place to another when connected with the power supply.

Multiple socket: a combination of two or more sockets.

Industrial Panel Socket: socket intended to be installed in electrical appliances or fixed to electrical appliances.

Removable plug or removable mobile socket: electrical accessories that can replace flexible cables.

Non - detachable plug or non - detachable mobile socket: after connection and assembly of an electrical accessories manufacturer, an integral electrical accessory is formed on the structure with the soft cable.

Note: the family wall socket is a fixed socket, and the plug is not connected with the power cord and the plug is called the mobile socket. The whole plug is called Adaptor.

The normally used national standard combined hole products should belong to the converter, and the standard is the GB2099.3-2008 "second parts of the plug and socket of the household and similar use: the special requirement of the converter" (IEC60884-2-5:1995, MOD) converter defined by a plug part and one or more socket parts as a whole unit. A mobile electrical appliance accessory.