How to connect a grounded outlet

In private buildings and apartments of new buildings, the wiring of which is made using three-conductor wiring, the problem of grounding is usually solved easily. But how to connect an outlet with grounding in the houses of old buildings, not everyone knows.

In such houses, the wiring is made in the form of a two-wire line, because of this the task is somewhat more complicated. To solve it, you will need to take a number of additional actions. These operations usually boil down to the organization of another (grounding) core, stretched from the flat panel to the grounded electrical access shield.

Grounding options

Installation of a grounding cable

When carrying out electrical work, allowing you to easily connect to the network outlet with grounding, the following options are possible:

• Electrical panel Installation of additional bus from copper wire of a certain diameter and stretched from the room to the access distribution board with free grounding terminals.
• Arrangement of the so-called "zeroing", the essence of which consists in connecting the grounding contact of the outlet to the "zero" wire. Specialists electricians consider this method of connection more preferable, since in this case it becomes possible to use protective disconnect devices in the line.

The isolation of the wires supplied to the apartment for the convenience of the connection is made in different colors. The ground wire in accordance with the standard has a mixed yellow-green insulation, while the phase conductor is usually made of brown or red sheath. The “zero” wire in most cases is performed in blue or blue insulation.

If there are junction boxes in the apartment, the connection can be made directly to them (if there is a third grounding conductor, of course).

Connection order

Types of sockets

Directly Before connecting a double grounded outlet, you will have to perform the following preparatory operations:

• strip the ends of the wires supplying power to the outlet;
• remove the decorative cover from the product to be mounted;
• loosen the fastening bolts at the terminals to which the wires will later be connected.

Connecting to a switchboard Further manipulations related to connecting the outlet are usually reduced to the following operations:

1. Wire ends pulled out of the plastic landing box are fed to the contacts and loaded into the corresponding terminal holes. Phase and neutral wires you can connect without regard to their functional purpose (i.e. they can be swapped). In contrast, the ground conductor must be connected to a terminal block with a special designation, which is a ground symbol.
2. After connecting the wires, the case of the outlet without the cover is fastened with self-tapping screws to the plastic mounting box (socket); at the same time, the supply wires are neatly tucked into its case.
3. Old-fashioned rosettes are equipped with special tabs that allow fixing its case by tightening the screws.
4. After fixing the outlet in the bottom, you should check the bolts on the terminal blocks once more and only then replace the decorative cover.

In conclusion, it is necessary to warn you that before carrying out the full range of measures for connecting the outlet, be sure to remove the power supply from the entire apartment. Such a shutdown is usually done by turning off the corresponding automaton or unscrewing the plugs.

Video

In the following video you can see how the socket with grounding is installed at a professional level:

Photo

Installed socket with grounding

Installing a socket with grounding

Installation of the socket

Socket with ground connection

Subjects

A connected ground wire

Connect the ground wire to the switchboard

Installation of sockets

Schemes

The schemes we offer will help you competently by connect a socket with grounding:

Grounding system

Grounding contact

Socket with grounding

Connection diagram

Connection diagram of two sockets with grounding

The unit from the socket and the switch

Switch and socket connections in one case

Connection with phasing

Socket connection for the plate

Socket

Socket Outlet and One key switch