The power system of any house or apartment includes a large set of auxiliary equipment that provides uninterrupted and safe power supply to the entire dwelling. Junction boxes are a very important part of the power system, which reliably protect against electric shock when cables and wires are disconnected in the room.
Classification of junction boxes
With the help of junction boxes, wiring is carried out to a variety of electrical installation devices and devices. The installation and operation of electrical installations is carried out in accordance with certain rules, which clearly state which junction boxes should be used in certain areas. Today there is an extensive line of electrical installation products designed for use in a variety of installation projects.
These products are made of different materials, different types of wire fastening and protection class (IP). All of them are divided intotwo groups - for hidden and open wiring. Accordingly, when installing junction boxes, different technologies and tools are used. So, an inner box designed for hidden wiring is built into the wall plane into prepared technological niches. And the outer junction box is installed directly on the wall using traditional fasteners.
Rules for installing junction boxes
Premises with high humidity must be equipped with sealed junction boxes, which have a protection class of IP23. In wooden houses it is recommended to put metal junction boxes. The main task during the installation of this equipment is to ensure reliable contact between the distributing wires.
At present, the soldering method and electrical tape are no longer relevant, because. for connecting cables, convenient and high-tech clamps are now being produced that ensure safe and long-term operation of industrial and household electrical wiring. When installing junction boxes, remember that you will need to do their regular revision, so you should install them so that they are freely accessible, and it is possible to visually view the inside of the box without dismantling.
Join boxes: advantages and disadvantages
The advantages of using junction boxes are obvious: firstly, the amount of wire is significantly saved, because to connect multiplesockets, it is enough to draw only one line to the box, and from it already distribute the wiring to the sockets. Simplify junction boxes and preparation for laying electrical wiring without the need for multi-meter strobes. However, they also have some drawbacks. One of them is the decrease in the reliability of the wiring diagram. The fact is that the wires can oxidize over time, and because of this heat up, which causes damage to the wiring.
