Electrical equipment, light, lighting

How to connect an outlet

Connecting the outlet is a responsible process that requires the installer to know all the rules and nuances of electrical work. The loads on wiring assemblies are constantly increasing, so even minor violations of the requirements can lead to overheating of devices, melting of contacts and the occurrence of a fire hazard..

Without having sufficient information, it is better not to undertake any work with electrical wiring at all. However, home craftsmen who have studied this issue do not experience difficulties in connecting and operating outlets..

Socket device and diagram

Connecting an outlet is a task that almost every home craftsman had to perform. It would seem that what could be simpler? However, this process is not as trivial as it seems at first glance. So that the operation of the electrical outlet does not become a source of problems, especially in highly loaded apartment networks, it is necessary to understand the design and know the basic requirements for installing a switchgear.

The socket consists of a decorative box with a captive screw, a socket and a block assembly. The terminal block is equipped with the following elements:

  • fixing legs – can be expanding movable on screws or solid-cast fixed;
  • contacts – zero and phase (identical in design), grounding, placed separately;
  • terminals for connecting wires to contacts.

Device Notes:

Preparatory measures before connecting the socket

Socket selection

There are many types of sockets that have both universal and special purposes..

Not all are used in everyday life. The most popular are the following types of outlets:

  • С 1а – switchgear, not equipped with grounding contacts. The main purpose is to work on sections of the electrical network where direct current is less than 10 A, alternating current is up to 16 A. Suitable for connecting low-power devices. Must withstand 250 V.
  • C 2a – sockets with side grounding devices. The design provides an internal terminal for the PE wire supply. Used to connect pumps, electric stoves, washing machines / dishwashers.
  • C 3a – there is a pin-format grounding contact in the socket mechanism. Differs from С 2а in configuration and grounding location.
  • C 5 – traditional Soviet sockets. They are available in a square shape with a round cutout for the plug of an electrical appliance. Such models are well suited for powering old household appliances. C 5 sockets withstand current strength up to 6 A, installation – without grounding.
  • From 6 – “euro” sockets, strongly protruding beyond the surface of the wall. Such switchgears are suitable for most household electrical appliances, as they have wide plug holes..

Advice. A three-wire cable must be purchased to mount an earthed socket. Three wires are connected to zero, phase and ground. Installation of a socket without grounding is carried out with a two-wire cable.

The choice of an outlet largely depends on the purpose of the room itself. Waterproof models are installed in the bathroom, kitchen, swimming pools. In industrial and warehouse buildings – sockets with a high degree of protection against the ingress of dust and other solid particles. The level of security can be found in the IP label.

Laying the wire under the socket

There are two options for laying the wire: open and hidden wiring. The choice of this or that method largely depends on the nature of the room: humidity, dustiness, fire and explosion hazard, chemical activity of the environment.

Outdoor wiring is routed to the wall surface using various mounting methods. This option has both pros and cons. The main advantages of the open method include:

  • repair of external electrical wiring is much easier than hidden;
  • no need to chisel the wall;
  • speed and ease of wiring.

Disadvantages of open wiring:

  • unaesthetic appearance – stretched wires often spoil the interior of the room;
  • open wiring is exposed to external factors and is easier to damage than hidden.

Important! In wooden houses, electrical wiring must be laid with an open method..

When arranging open wiring, different methods of laying cables and wires are used: on the surface of the ceiling / wall, in boxes, pipes, flexible metal boxes, electric platbands and baseboards.

Multiple sockets are connected by daisy-chain (parallel connection) or star (via a junction box). The choice of option depends on the acceptable cable consumption, ease of connection and the power of electrical appliances in the room..

Diagram for connecting a network outlet with a loop

To install a hidden socket, you first need to make a groove in the wall, place a wire that fits one end to the power supply, and the other to the socket. The next step is to install the socket.

Important! In the strobe, the cable is laid with a reserve of the conductor inserted into the distribution box of about 10 cm.

Installing the socket box

Hidden sockets require a recess arrangement. This hole is made using a special drill bit (crown)..

Drilling procedure in a concrete wall:

The next stage is the fitting of the client. If the box “sits down” well, then you need to squeeze out the plug and put the cable through the hole. Next, apply a little alabaster to the back / side walls of the box and “press” into the hole.

Socket connection procedure

The whole process of connecting the outlet can be broken down into several stages:

How to connect a double socket: assembly features

The procedure for connecting a double socket depends on its type: stationary or prefabricated. For the installation of a stationary socket, contacts with clips are provided in the design. The supply wires must be connected to different conductive plates.

Important! It is impossible to connect two supply cables zero and a phase to one plate. Such a connection is very dangerous – when the machine is turned on, a short circuit will occur, and the electrical wiring may be damaged..

The assembled double socket is, in fact, two single sockets located side by side. How to properly connect two switchgears if the power cable is laid under one socket? It is necessary to make a jumper by transferring a piece of cable from one box to the second. All wires are connected in parallel with each other.

Compliance with safety measures when installing sockets

Installation of electrical fittings is carried out in compliance with safety rules:

Compliance with elementary safety standards will allow you to perform high-quality work on the connection and operation of outlets.