If you decide to do repairs in the room and stick new wallpapers, then you need to start with the installation of hidden outlets. You must admit that it is much more convenient when the socket is recessed into the wall, but does not protrude from it, interferes with the installation of furniture and spoils the appearance of the interior.
First you need to turn off the voltage in your apartment by turning off the machine in the switchboard. Then dismantle the old sockets and insulate the bare ends of the wires exiting the wall. Now you need to determine the place where the sockets will be installed. It is advisable to place them above existing cable channels or at a small distance from them, then you do not have to ditch the walls to hide several meters of electric cable. Although you can hide all the extra wires under the baseboard.
Usually, sockets are made at a distance of 30 or 90 cm from the floor, so we mark the surface of the wall with a tape measure and a pencil. After that we circle the plastic podrozetniki around the perimeter so that we get several circles touching each other. Arrange sockets horizontally or vertically up to you.
Next, using a puncher and a special crown for reinforced concrete, we need to make several holes equal in depth to the thickness of the undergrowth. The work is best done in a respirator and glasses, and you can get rid of dust by leaning the socket of the vacuum cleaner against the wall, just below the drilled holes.
Using a grinder and a disc on concrete (preferably with diamond spraying) we cut the strobes where the cable will be hidden. The depth of each strobe should be approximately 1.5 cm, and in the case that an antenna or satellite cable is required, then 2-3 cm. Then we connect a new electric cable to the ends of the existing one. Previously, the wiring was mainly made of aluminum, and the new cables are made of copper, so special latched adapters are used to connect them to each other. To hide them, you will need to make small recesses in the wall using the same diamond disk.
We start the ends of the cables in the sockets with a margin of several centimeters. We use the putty to coat the sockets and cables with the putty and leave for several hours (preferably all night) so that the material hardens. Then we connect the ends of the cables to the sockets and with the help of two screws we fix them in the socket boxes. Installation of switches for a chandelier or other light sources is done in the same way.
After gluing the wallpaper, cut holes around the perimeter of installed outlets or switches, fix the outer frame and outlets. Typically, the frame is mounted on special latches, and sockets on a screw connection.