An integral part of the energy supply system of any building is the wires and devices that allow you to receive electricity for the operation of all electrical appliances in it - sockets. To properly separate all the wires and fix them, you must first install in the wall podrozetniki for concrete.
I would like to note that all the sockets are made of materials with increased resistance to fire - PVC, polypropylene, polyamide.
Dimensions and shape
Structurally, all the socket boxes for concrete, although they have differences in the external shape (round, rectangular, square), are usually made in the form of an open case on the front side with openings for entry of wires and cables, fixed latches and plugs.
As a standard, sockets and switches are made for a specific internal diameter of the socket, which varies from 60 to 68 millimeters. It is important to pay attention to the depth of the box, it can be different, designed for installation in walls made of solid materials or in drywall.
Podrozetniki for concrete are available in a depth of 4-8 cm. For ease of installation in the wall, wiring accessories with mounting frames located both vertically and horizontally are produced.
Sometimes it is required to install not one outlet, but several, or several outlets and a switch (especially convenient in the kitchen). Both single concrete sockets and block are available. Single ones have special lateral protrusions for serial connection, but it is more rational to buy a ready-made unit immediately, it is easier to install. All products should be of the same diameter and the distance between them should be the same (71 mm).
Installing Sockets
The process of installing boxes in concrete has its own characteristics, since how they will look like ready-made sockets and switches depends on their proper installation.
The first step in this process is preparing the holes in the concrete. If the holes are planned to be made with a puncher, then diamond crowns can be used , due to which a perfectly smooth hole is obtained. If reinforcement is found in the place selected for installation, then it can be cut off with a grinder.
Setting socket boxes for concrete, the size of the holes makes it so that the box does not fall deep, but also does not protrude from the wall. The gates in the concrete for the wires should fit on the side of the existing holes.
The next step is to install the socket. Alabaster is considered the most suitable solution when installing the box, since it quickly hardens and finally the outlet can be installed very quickly. First, the solution is poured into the space behind the box, then on the sides, insert the socket and remove the excess with a spatula. Be sure to ensure that the box is flush mounted to the wall. An outlet or other equipment can be installed as soon as the solution dries.
Price Parameters
The assortment of installation boxes presented on the construction market allows you to choose the desired shape, size, color and completeness. At the same time, for concrete sockets, the price ranges from the minimum (up to 10 rubles) for domestic ones to several hundred for imported ones (Legrand).