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Replacing wiring with copper
If you regularly lose contact in sockets, and electrical appliances cannot be turned on at the same time, as "Knocks out" the machine and when replacing the chandelier, the wires break easily, like matches, which means it's time to change the wiring. Prices for a service such asreplacement wiring in the apartment in commercial companies, for example Gorkomservis, make up about 600 rubles per sq.m. Whether it is expensive or cheap is up to you. Let's look at ways to save money do it yourself.
In almost all houses of the old construction and in most modern houses, the electrical wiring is mounted with aluminum wires in a single insulation. The section of this wiring is most often calculated based on a consumption rate of 1-2 kW. power, which is quite normal for the sixties of the last century, but our contemporaries consume much more.
In the event of a failure of the “automatic devices” in the apartment panel, the insulation of the aluminum wires begins to rapidly break down. And this is a direct road to a short circuit. In addition, any leakage, any damping negatively affects the aluminum wires. It becomes brittle and brittle. The same thing happens over time. Based on this, the life of aluminum wiring is considered to be no more than 15-20 years.
Wiring replacement can be done independently, subject to safety precautions and basic knowledge. The main thing is accuracy and, of course, not to carry out work under stress.
To replace the wiring when repairing an apartment you need:
1. an apartment plan with the desired distribution of connection points;
2. new electric cable;
3. switches and sockets;
4. automatic machines;
5. punch and a long drill to it;
6. junction boxes;
7. gypsum putty;
8. pliers, side cutters and screwdrivers;
9. warning lamp or multimeter;
11. phase indicator;
12. insulating caps and tape with rag insulation;
13. installation boxes for sockets and switches.
If at least one of the above is not familiar to you, then you should not do the replacement yourself.
We start with the plan of the apartment - on it we mark out the location of the switches and sockets. Then we consider the load: add up the approximate power consumption of electrical appliances in the entire apartment plus 100 watts. for each light source. We divide the result by 220 and get the current value, the wiring should be calculated on it.
According to the finished plan, the required amount of cable, sockets and other things are calculated. For each switch and socket, 1 installation box is taken.
Having bought all the necessary materials in the store, you can get to work. First, turn off the old wiring by turning off packet switch in the dashboard.
We begin to replace the wiring from the back room. Find the junction box, its cover is usually visible in the wall. Having opened the cover, in the bundle of wires find the introductory one, after you cut and insulate it, you can turn on the electricity again.
If possible, remove all old wiring. If this is not possible, then the wires can simply be cut. After that, you can lay new wiring. Open commissures and twisting wires leave unacceptable. They must be in junction boxes, moreover, carefully insulated.
Note that connecting wiring to the switchboard and installing circuit breakers is the job of a professional electrician. And do not try to do it yourself.
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See also at bgv.electricianexp.com
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