DIY basics of replacing electrical wiring. Interesting from the construction industry

Overhaul is often accompanied by the replacement of electrical wiring in the apartment with a new one.. The reason for replacing the wiring often becomes a mismatch between the old electrical network and modern household electrical appliances. Earlier, when prefabricated houses were built like stalinok and Khrushchev, for each of the apartments, a load reserve for the power grid of 3 kilowatts. of course, this is not enough for current needs.

To help you rectify the situation and replace the old wiring with a reliable new one, we will go through each step of the replacement procedure in detail, and also describe in detail all the subtleties of the process.

We determine the amount of work to replace the wiring

The primary task is to understand, whether all wiring is to be replaced or will it be sufficient to replace only certain parts of it? Certainly, this is a private matter. But it is worth remembering - in old buildings the electric network was created mainly from an aluminum conductor of small cross section without grounding.

Is it worth talking, how dangerous is the use of such wiring in our time? It’s much better to replace the entire network in your own home in one fell swoop..

Likewise, it will be useful to objectively evaluate one's own forces., to determine if you can do it alone. This is a moot point. One side, the process of replacing the wiring with your own hands is not fraught with great difficulties, on the other hand, in the process of dismantling, you will need special tools and skills.

Possess the entire set of tools and are firmly confident in their abilities? Fine, then we will tell, What do we have to do.

Scheme and materials for wiring replacement

First you need to make a wiring diagram. It indicates the location of all outlets, circuit breakers, junction boxes, as well as places for connecting powerful electrical appliances, which are usually powered directly. We recommend that you familiarize yourself with the wiring diagrams in the apartment.

It should be noted, that in apartments it is customary to carry out installation of hidden wiring. This is due to such aspects., as: electrical safety, fire safety, impact on room design and t. d. However, no one will forbid you to carry out an open network - it all depends entirely on your preferences and capabilities. Such wiring usually hide channels in the cable.. Designs and types of cable channels a huge amount about this you can read more here –https://ghard.ru/konstrukciya-i-vidy-kabel-kanala-dlya-elektroprovodki/.

To replace wiring in the apartment went smoothly and without excesses, We recommend that you follow these tips.:

Should use copper cable. It must be three-core with a cross section of at least 2,5 square millimeters for a group of outlets, 1,5 square millimeters for lighting and 4 square millimeters for powerful equipment. In order not to miscalculate with the diameter of the cross section, We recommend a preliminary calculation of the cable cross-section. With regards to the brand - it is worth focusing on an expensive foreign product marked NYM. If you decide not to chase the high cost, you can purchase a domestic VVG cable.
What you can't do without, so it is without protective automation. When is the wiring replaced?, it is necessary to protect the system from current leaks, possible overload and short circuit. Successfully cope with the task will help RCD, as well as circuit breaker (as a combined model, you can use difavtomat). As a RCD, and the circuit breaker must be selected with an eye on the load of the power line. So for an apartment with three rooms on the outlet group put automation on 25 Ampere, for lighting devices - 16 Ampere, on powerful equipment - 32 Ampere. The opening circuit breaker on the distribution panel must be designed for 40 Ampere, residual current device - on 50 Ampere. Regarding specific manufacturing companies, we advise you to look at the leaders in your industry - ABB and Legrand.
How to choose a junction box for your apartment? Here it is worth focusing on the branching of the groups and the cross-sectional area of u200bu200bthe conductors. Rectangular boxes are much more spacious, and round ones are much easier to mount. We wrote about the installation of the junction box earlier.
Sockets must be earthed. It will also be useful to buy sockets with covers, which will allow young children to block access to a potentially dangerous object and prevent foreign objects from getting into the outlet. It is worth paying attention to the marking, so that the outlet can withstand the load of electric current. Otherwise, when connecting powerful devices, problems will begin.
As for the switches - there are no special requirements for them. It is only important that they are safe and comfortable enough to use.. Among a huge number of types of devices, dimmers are very popular, allowing to smoothly increase and decrease the brightness of light in the room. It will NOT be superfluous to find out about the recommended installation height of switches and sockets.
Connecting the conductors, use WAGO terminals. This is the most efficient and at the same time the least laborious way to connect wires.. And the price of “wagons” is quite affordable.

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Scheme and materials for wiring replacement

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