Connecting broken wires in the wall. What to do if the hidden wiring cable is damaged Repairing damaged wiring in the wall

What to do if you interrupt the electrical wiring in the wall? Usually in such a situation a person gets lost, but nothing bad happened; the electrical wiring can be successfully repaired with your own hands using one of the methods below.

When drilling into walls to fasten objects, rarely does anyone think about the fact that electrical wiring is laid in the walls. But even if you remember and mentally trace the possible path of the wires from the junction box to the sockets and switches, there is still no guarantee against the drill getting into the wire.

Electrical wiring is especially often damaged when installing suspended and suspended ceilings. The corners or baguettes holding the ceiling are attached to the wall with self-tapping screws and their fastening line runs exactly at the level of the wires.

According to the requirements of the Electrical Installation Rules (ELR), twisting wires when installing electrical wiring is prohibited. When connecting conductors of hidden wiring in the wall, this rule must absolutely not be violated!

It is best to replace the entire section of broken wire from the junction box to its connection point, but this is not always acceptable.

Since the broken conductors are short, the connection can be made using terminal blocks. But in this case, you will have to install junction box, which is labor-intensive and not always satisfactory.

The proposed technology for connecting broken wires in a wall under plaster has been tested in practice and has shown high reliability. In my apartment for more than 16 years there has been hidden electrical wiring with several similar connections; two pairs of conductors had to be connected when moving the meter, one pair was connected in two places when moving a wall, and two pairs when moving electrical sockets.

When repairing electrical wiring, it is imperative to de-energize it!

Repairs should begin with very careful removal of the plaster in the area of damaged wires. This work is done with a chisel and hammer. As a chisel when laying electrical wiring in the wall, I usually use the rod from a broken screwdriver with a sharpened end of the blade.

This chisel is good for making small grooves in the wall when laying hidden wiring, for example when moving an outlet, or installing an additional one.

When the wires of the hidden wiring are exposed, it will become clear whether one wire, two or three are broken. What metal are electrical conductors made of, copper or aluminum?

Connecting broken copper wires

Connecting a broken copper wire in a wall by soldering ensures reliable contact of the wires no worse than an undamaged one and allows you to close the connection with plaster without installing a junction box.

One of the two copper wires is broken

An autopsy showed that one copper conductor was broken, the second wire was not touched and the insulation around it was not damaged.

To repair, you first need to remove the plaster to the sides of the damaged area 3-5 centimeters to a depth of a centimeter under the damaged area of the wire. This is necessary to create conditions for connecting the wires. Next, you need to disconnect the wires and cut the insulation along the center.

A prerequisite for obtaining a reliable mechanical connection aluminum wires is the use of a Grover type washer. The connection is assembled as follows. A groover is put on the M4 screw, then an ordinary flat washer, rings of connected wires, then a simple washer and a nut.

The screw is screwed into the nut with the maximum possible hand force. All that remains is to cover the connection with electrical tape.

To protect against mechanical damage, the resulting connection should be covered with an insulating tube. You can wrap the top again with one layer of electrical tape.

Using the technology described above, several broken aluminum wires are also connected. You just need more screws and jumpers.

Based personal experience I dare say that the connection of aluminum conductors hidden electrical wiring using the technology described above will ensure its trouble-free operation until the end of its service life, provided that the load current does not exceed the permissible one.

Repairing electrical wiring in an apartment is a complex and dangerous process. However, there are numerous situations in which network repair must be urgent and must be carried out personally. If you carefully read the instructions and act according to their points, the repair will be accessible to everyone.

Common reasons

Repair of electrical wiring can be forced or planned. By various reasons even the current system may become unusable. Most often it just needs to be replaced. There is a list of the most common factors when wiring deteriorates and requires correction.

Each network is designed for a certain number of operating devices. Old buildings were not intended to be used washing machines and computers. When the network is overloaded, aluminum components overheat, after which they melt and become unusable. The contacts in switches and sockets become loose, causing them to spark.

Often during construction, wiring is installed in which the parts are made of different metal components: steel, aluminum and copper. Each of these components has a different resistance to electricity. If energy is not distributed correctly, the material melts or oxidizes.

The most common cause of wiring damage is connecting several powerful devices to one outlet. There are often cases when the system is damaged due to carelessly driven nails into the wall for paintings, watches and third-party objects. Metal parts they simply destroy the wires, rendering them unusable.

Each component of the wiring has its own service life, which varies depending on the quality of production and insulation. So, switches should be replaced after 5-8 years of operation, the service life of automatic machines is 10-12 years, wiring - 15-20 years. The entire network must be repaired as a whole, and partial repairs are unacceptable.

Types of schemes

Each component of the electrical network has its own classification, which is considered according to the following parameters: location, method and place of installation, protection option. Depending on placement, wiring can be open or hidden. The first option involves wires that hang in the room and are not covered with anything. Such a network does not meet safety standards, but this is a necessary measure during repairs.

The system can be placed in the walls, hidden under putty, suspended from the ceiling or located in boxes. Location type:

in the floor;
in the walls;
in special wire sleeves.

Preparatory measures

To install or repair wiring with your own hands, you need to perform a number of preparatory actions that will, to one degree or another, affect general structure walls So, to replace switches or sockets, you need to make grooves and holes near them. To do electrical installation work, you need to prepare a set of tools:

Instruments must be insulated with rubber handles. To work with wiring prepare:

Do-it-yourself electrical wiring repairs must be carried out taking into account all safety standards. You need to start repairing only after the apartment is completely disconnected from the network. Overalls must include rubber gloves.

For more precise actions, you need to draw a floor plan of the apartment, indicating all the sockets and switches in the rooms. You should also indicate the proposed electrical appliances and their power. How more devices consume energy, the higher the strength and quality of the material. Then you need to calculate the total electricity consumption in the room.

Necessary materials

To carry out installation and repair of electrical wiring, purchase a cable made of three-core copper wire. Its length depends on the area of the apartment. TO total length 15cm should be added to each socket and junction box.

The next main element in electrical installation work is an automatic machine and an RCD. The latter device is designed for emergency power shutdown in the event of a short circuit, open contacts, and other situations. You will also need an UZA for 40MA type sockets.

The process of repairing the electrical network

Wiring repairs are divided into several stages. Each of them has its own significance. To get started, you should carefully inspect all protective equipment (rubber gloves and rubberized pads on tools). It is necessary to check the food in the apartment. It should be disabled.

The first stage is to install a new shield. For it you need to make a niche using a hammer drill, chisel and hammer. As a rule, in new houses these niches are already provided for RCDs and automatic circuit breakers. There you should make a hole in the wall for the cable.

After this, you need to connect the wire to the panel and install water protection. According to the diagram, a wire in a blue sheath is attached to the zero phase, the wire white- to the top contact, and yellow - closer to the floor. In the case of installing an RCD, the zero phase with a wire is first mounted to the device protective shutdown, after which it goes to the zero terminal.

When the installation of the shield is completed, the cable should be laid. The optimal solution There will be a gasket under the floor. To do this, you will have to remove the coating and make the grooves using a hammer drill. For places under sockets and distribution boxes, it is necessary to attach a special crown to the drilling tool. To lay the wire in the voids of the floors, there is no need to destroy the walls.

The next step involves cutting the cable into pieces of the required length. It will be convenient to insert wiring into corrugated pipes, and it will be easier to push it through using clamps for tightening. The cables should then be connected to the boxes. A tester is required to check functionality. This measuring tool will detect damage in wiring, analyze charge levels and check overall electrical voltage.

Most of the work will be completed by this point. Next, you need to attach the wires to the walls with clips if they are not corrugated. Then the grooves should be plastered. It is easiest to run the wires under the baseboard, but then the junction boxes will be outside.

Simple step-by-step instruction will help you do high-quality and correct wiring in your apartment or house.

The main thing is to act taking into account safety regulations, without neglecting your own protection. If you have any questions, it is better to seek advice from a specialist who will make the wiring much faster.

"A-Iceberg" - 25 years with you. 5 million repairs completed.

Repair of electrical wiring in an apartment at an affordable price and with a guarantee of quality. The technician will arrive on the same day!

Burnt out electrical wiring is always a big nuisance. In this situation, not only individual rooms, but the entire room may be de-energized. Then the problem must be solved quickly, and not everyone can do this on their own. Experience, knowledge, special tool- this is the minimum that will be needed to complete repair work, so we recommend that you seek help from qualified specialists. The A-Iceberg Service Center has everything necessary for this, and our technicians will carry out electrical wiring repairs with high quality and in the shortest possible time. To do this, you need to fill out an application on our website or call 8 (495) 213-33-33 and the arrival of the master will not keep you waiting long.

Why does electrical wiring burn out?

Electrical wiring fails for several reasons, the main ones being:

Short circuit. Kinks and twisting of the wire lead to a breakdown of the insulation, which causes the bare parts to touch each other and cause a short circuit. Most often this happens with the cord in the plug area.
Connecting several powerful electrical appliances through a tee leads to overheating of the wires approaching the outlet, resulting in a short circuit and electrical wiring failure.
Broken wire connections. As a result of mechanical damage, wires break, which can lead to a blackout in the room, and in the worst case, to a fire. This happens especially often during careless repairs, when the integrity of the cable is damaged with a drill or nail. In private homes, the cause may be rodents damaging wires.

Compliance with operating rules will help extend the service life of electrical wiring for as long as possible.

Preparatory work

If a problem occurs and repair of the electrical wiring becomes inevitable, then its elimination occurs in several stages. The cause is preliminarily determined and the location of the damage is searched.

Finding the reason

If, for example, you are working with a drill and the light goes out in the room, then the reason is clear - damage has occurred at the drilling site. But often the reason is not so obvious, so it is necessary to quickly search for it and start with the electrical panel. Are being checked circuit breakers, safety of fuses. Safety switches can turn off due to network overload, as well as as a result of loss of contact in the machine. Sometimes it is necessary to restart them several times, having first disconnected the most powerful electrical appliances from the network.

Finding the fault location

If the cause is not found, then you need to look for the location of the wiring damage. To do this, we divide the room into several blocks (kitchen, bathroom, living room, corridor, etc.) and if you do not have light, for example, in the kitchen, then, first of all, the distribution box of this block is checked. Contacts, connections, and wires are inspected. If they are not broken, then it is necessary to check the voltage on the current supply cable at the entrance to the box. Its absence indicates that the electrical wiring is damaged somewhere in the wall.

Electrical wiring repair - basic methods

There are several ways to repair electrical wiring. Here are the three main ones that are most often used:

Replacing the old cable with a new one. In the case of closed wiring, the wall is broken in order to remove the damaged section and replace it with a new one.
Laying a new cable along the wall surface parallel to the old damaged wire.
With three-wire wiring, if one wire is damaged, it is necessary to restore its functions and thus restore the power supply.

Features of repair of closed electrical wiring

Repairing closed wiring is more complex than open wiring, so we will focus on the main stages of just such work. First, you need to determine how the cable is installed - to do this, we drill into the wall near the outlet and determine whether it lies in a hollow channel. If yes, then we determine the location of the entrance and exit of the void channel and then pull it through these holes new wire. For this purpose, a wire is used, to which a cable is fixed at one end. On minimum distance from the output and input, the ends of the old cable are cut and connected to the new wire, and then the connection points are insulated.

The process of repairing electrical wiring is quite complex, so if you do not have certain knowledge, then it is better to entrust this matter to specialists from Service Center"A-Iceberg." By contacting us, you will receive quality work done in the shortest possible time. You can place an order on any day of the week and, having agreed on the time of arrival of the master, quickly receive quality work done. You will be pleasantly surprised affordable price services, its speed of execution and the guarantees provided.

Repair wiring“5 Masters” specialists will help you. A sudden loss of light in the room, a burnt-out panel, a sparkling socket from the inside, the crackling of wires connected to the network - all this is a reason to urgently contact an electrician. Broken wiring won't fix itself, it will only lead to larger electrical problems that will be much more difficult to fix. If you don’t know how to fix the wiring in your apartment yourself, contact “5 Masters”. We will accept your request to call a specialist by phone or through the website.

Advantages of “5 Masters” specialists:

We will diagnose electrical wiring faults at a professional
equipment
We will help you fix both exposed and hidden wiring
Free: consultations, on-site visit of a specialist
We work in all districts of Moscow and the surrounding Moscow region
We have competitive prices for expert services

How to fix electrical wiring?

Before you repair the wiring, you should identify damaged areas and diagnose the causes of the problem. All electrical problems can be divided into 2 categories: broken wires and short circuits. The work does not take much time when it comes to damage to the wire of an electrical appliance. Everything becomes more difficult when a specialist has to look for damage to wiring installed in the wall. This work requires professional equipment.
If electricity goes out in the apartment, the technician checks the distribution box. Finding the location of the wiring damage is done in a logical way: if the lights in the room go out, it means that the wire damage occurred in front of the room; if there is tension in the room, the trouble should be looked for in the area located after the room. In this way, the entire apartment or house is checked until a fault is detected. Next, the cause of the break is determined (broken wires, loose contacts, etc.) or short circuit (damaged insulation, unreliable connection of circuit elements, etc.). To fix electrical wiring, the technician can replace some sections of the chain.

Repair wiring It’s not that difficult if you know exactly where the damage occurred and for what reason. In some cases, special equipment is required to diagnose the problem and fix it. Contact 5 Masters if you need to repair wires or cables. We will take on any job - very simple or the most complex. Our technician will come to any address in the capital, as well as the nearest Moscow region, to repair the electrical wiring as quickly as possible. We look forward to your inquiries every day, including weekends and holidays.