The energy system of any house or apartment includes a large set of auxiliary equipment, providing uninterrupted and safe power supply to the entire residential premises. A very important part of the power system are the junction boxes, which reliably protect against electric shock when disconnecting cables and wires in the room.
Classification of junction boxes
With the help of distribution boxes, wiring is made to a variety of wiring devices and devices. Installation and operation of electrical installations are 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 wiring products designed for use in a variety of installation projects.
These products are made of different materials, differ in the type of wire fastening and protection class (IP). All of them are divided into two groups - for hidden and open wiring. Accordingly, when installing the switchgear, different technologies and tools are used. So, the inner box, designed for hidden wiring, is built into the wall plane in the prepared technological niches. And the external junction box is installed directly on the wall through traditional fasteners.
Distribution Box Installation Rules
Rooms with high humidity must be equipped with hermetic junction boxes, in which the protection class is at the level of IP23. In wooden houses, it is recommended to put metal decoupling boxes. The main task in the installation process of this equipment is to ensure reliable contact between the distributing wires.
Currently, the method of soldering and electrical tape is no longer relevant, because Convenient and high-tech clamps are now available for connecting cables, ensuring safe and continuous operation of industrial and household electrical wiring. When installing the junction boxes, it should be remembered that they will need to be regularly revised, so they should be installed so that access to them is free, and it is possible to visually inspect the inside of the box without dismantling.
Junction boxes: advantages and disadvantages
The advantages of using junction boxes are obvious: firstly, the number of wires is significantly saved, because To connect several outlets, it is enough to draw only one line to the box, and from it already distribute the wiring to the outlets. Simplify the junction boxes and preparation for wiring for the absence of the need for multi-meter strobe. However, there are some disadvantages in them. One of them is to reduce 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.