Hidden wiring, how to find the damage in the hidden wiring, useful tips. What to do if the hidden cable is damaged

This happens very rarely. With great difficulty we hang a carpet on the wall, but we do not enjoy the result for long: for some reason the lamp of the lamp in the room ceases to burn. Or we drill a hole in the wall to hang a shelf, but sparks fly out from under the drill, there's a crash, and the apartment plunges into an ominous darkness and silence.

The reason for the misfortunes is simple to disgrace - we were not lucky, and we damaged cable hidden electrical wiring. In the case of a carpet, a phase or zero vein was most likely interrupted. And when preparing the holes for the shelf - damaged the insulation of both veins and made a short circuit (the drill can, of course, be thrown out right away).

To solve the situation, it is, of course, necessary to find the line damage. In the case of the shelf, it will not be difficult at all - where they fought at the moment of a short circuit, there is also a damaged area.

With the carpet, which we safely hung, breaking through, so, with a dozen holes, it will be more difficult. There are two questions. The first: "Which wire is damaged - phase or zero?". And the second: "In which of the holes did we damage the cable line?".

If installing a dowel and a screw in the hole, we interrupted the phase conductor, there is a risk of electric shock. Self-tapping, metal profile, metal elements of decor and interior - all this can be under stress with unsuccessful installation. Verify the absence / presence of danger can be with the help of a serviceable and reliable. In addition, we must remember that the damage can be not one, but two or more. The detected danger should be eliminated by turning off the voltage beforehand: unscrew the screw, remove the metal parts.

Next, you need to determine which part of our apartment wiring is out of order as a result of the damage. Very rarely, after the damage to the line, the light in the entire apartment disappears, usually just one luminaire or one or several outlets ceases to work.

If, then the indicator can check the presence of a "phase" in it. There is a "phase" - the zero conductor is damaged. There is no "phase" - we search for the place of its breakage with the help of devices that react to the change of the electromagnetic field, for example, an indicator screwdriver with a phase detector.

It should only be remembered that foreign cable lines running parallel to the test subject can interfere and distort the readings of the device. Therefore, group, not related to our tests, should be disabled.

If the luminaire refused to work, the input cable of the box, the switch cable, or the luminaire cable itself may be damaged. Usually by the location of the box you can understand with which cable we are dealing with. Damage to the phase conductors of the luminaire wiring is detected with the switch on.

In any case, the places of breakage of phase conductors are usually quite easy.

With a damaged zero conductor, the situation is slightly more complicated. It will be necessary to produce some preparatory work: disable circuit breaker the affected group, unhook the damaged neutral wire from the bus and apply a "phase" to it. Further damage can be found in the same way as in the case of a damaged phase wire.

A similar method reveals damage to the luminaire switch cable, if they are located after the switch itself. Since - phase, then under tension in this situation, nothing will be found out. It will be necessary to turn off the "machine" and the switch, and then apply voltage to the phase conductor from the side of the lamp - then you can find the place of the cliff.

When search for faults in zero conductors It is often not known which of the wires on the N bus switchboard refers to a damaged line. Then it is possible to disconnect the input zero conductor from the common bus, open the nearest branch junction of the affected group and, having determined the zero wire, apply the phase to it already from the load side. Then everything is the same as before.

But finding damage is only half the battle. Strictly speaking, this can not be done at all, and immediately replace the damaged cable section. Much depends on the situation. Let's say a damaged wire goes from to a light, a socket or a switch. Then it makes sense to change the cable completely.

But if the group cable coming from is damaged, the replacement of the entire cable may seem inexpedient. After all, the cable can pass through the walls of several rooms and have a large length. And in order to replace part of the cable, you will need to install at least one additional junction box, and this is already interfaced with. Stroby will need to be cleared to release the ends of the cable running in the wall, and to prepare a hole for the box.

Stroke cleaning - a matter of responsibility and requiring caution. It is best to perform it with a hammer and chisel, chipping off small pieces of plaster and trying not to damage the cable. Of course, the voltage must be switched off beforehand. It is necessary to abstain from power tools, because only one careless movement is enough - and the damage will become even more serious.

It is necessary to clear the stroba approximately 15 centimeters from the damage in both directions. Then you need to take the ends to the side and punched the hole for the junction box. The box is installed with the help of alabaster, and we put into it a cable from the shtroba. If the damage is not particularly shortened the length of the cores, or there is some margin, then the cable can be brought into the box from both sides and connect the wires with standard terminals. That is, it is possible to do without replacement of the cable, simply by combining the former veins in colors. This is especially useful if the cable is damaged only in one place.

The new part of the cable wiring, if any, is usually mounted in. The most important thing here is not to overdo or damage other cables while drilling holes for dowels. Well, and do not forget to disconnect and muffle the old and already unnecessary part of the wiring.

The newly mounted tap-off box is closed with a lid, plastering, leveling the wall and gluing the wallpaper - the work is completed, you can apply tension.

Conclusion.

Although it is clear that the cable damage hidden wiring is not a "tragedy", while performing repair work it is better to first use devices for searching conductors under voltage, so as not to create unnecessary problems. And even better - have a detailed layout of the wiring lines with an accurate indication of the height of the passage of cables. All the same repair of damages is a rather troublesome and dirty business. And the interior decoration of the room, such repairs will not do any good.

Alexander Molokov

Apartment renovation

Failures in the well-coordinated operation of electrical wiring usually cause a huge amount of inconvenience. To yet greater problem can be attributed to the study of cable breakage areas, thanks to which, the stable functioning of electrical appliances comes to an end. It is not difficult to find a breakage of the electric wiring only when you have an open wiring and the rush spot is visually visible.

In the event that the electrical wiring is hidden, it is much harder to detect the rush. Definitely we will need special device - route-finder. In most situations, it is necessary to call professional electricians, but in some cases, in principle, it is possible to find a hidden wiring breakdown and on their own.

How to find the phase and zero in the posting

First, you need to understand what kind of wire is broken - zero or phase. For work we need a screwdriver-indicator, with the help of which it is necessary to "probe" every failed electrical equipment contact. If a current is supplied to the outlet, then only one of the contacts is required. In a similar situation at the switch, one contact will be located in the off state, or all the contacts are in the ON state.

In the event that the screwdriver-indicator determines that the phase is present, then, the breakage occurred on the zero cable. If the electrical wiring, in addition, is hidden, then only experts can detect the fault zone and repair the malfunction. A simple man in the street to correct the phase break is virtually impossible.

How to find a wire break with a tester

If the electrical wiring is organized in an open way, and the wire is visible from the distribution center to the break zone, then in such a case an electronic tester is used to determine the fault point. First of all, for carrying out the search process with the tester, it is necessary to disconnect the current supply first to the distribution node, and then directly to the wire. At the cable outlet from the distribution center, the first incision on the insulation must be made. It is needed in order to be able to get to the metal core, the next incision is made about one meter.

Then you need to measure the resistance on this piece of wire. In the event that the electrical resistivity in this segment is small, then, for sure, there is no wire break. After the second notch, through the meter, you need to make another incision, and again measure the electrical resistance of the wire in a new section. According to this scheme, you have to cut and measure until you determine the zero electrical resistance completely. This segment will be the zone of the wire break.

How to fix a wire break

We examine the damaged section of the wire. On it, too, incisions are made, but with a smaller step. So, between close cuts on the faulty segment there must be a gap of half a meter. Having found a damaged zone by a similar method, but already on a smaller piece of wire, it is necessary to repeat the process with incisions again.

The break point of the electrical wiring with the help of this method is determined extremely accurately, practically up to one millimeter. Most often, the break point is much earlier, and the need for an absolutely clear finding of the cliff site does not arise. Then the repair work, and then all the cut wire is very electrically insulated.

How to find a broken wire in a brick or concrete wall

If the wire with the phase is located in the wall of brick or concrete, then the site of its breakage can be detected by using a special non-contact device for working with concealed wiring. During the reconnaissance procedure, keep in mind that the wiring hidden in the wall structures passes strictly vertically and horizontally, all changes in the route of the wires are made strictly at an angle of ninety degrees.

This will allow us to find the path with the utmost accuracy electrical wires from the distribution node to electrical device. All that needs to be done is to move the device over the wiring, along the wall surface, and on the section of the wire break it will certainly notify you. More often the device for work with the latent wiring on a site of breakage disconnects an audible signal giving.

How to repair non-working wiring?

Due to a violation of the integrity of the wiring, walled up under a layer of finishing materials, the tenants of the apartment may remain without the usual amenities. To restore the supply of current, you need to know how to find a break in the wall and fix the detected damage.

It is possible to suspect the damage to the power grids in the event of a partial disappearance of the feed electric current. The wire break may indicate a lack of voltage in the outlets located in a certain area, or not working in a separate room lighting.

Sometimes the wiring faults can also be accompanied by smoke or sparking of the cable.

Wire defects include breaks and kinks in the cord, as well as violations in the cable's insulation sheath

Damage occurs on different parts of the network: the electric feed may be disturbed at the point where the cable is connected to the outlet or to the switch; on the area between these devices and the box or lighting device.

Causes of malfunctions

When observing the rules of operation of electrocommunications, they can regularly serve for decades. But in practice, there are often frequent electrical network failures that can be caused by different causes. Such factors include:

Long-term cable operation. Wiring can function impeccably for many years, but after a certain time limit, it begins to collapse. In this case, the network crumbles and leaks occur, which regularly knock out the RCD (its absence affects the increase in leaks). Sooner or later, such violations lead to interruptions, and then to the complete cessation of the supply of electric current.
Mechanical damage. Not knowing the scheme of laying electric networks, when drilling holes and hammering nails in the wall, you can easily touch the wire, causing it to break, and sometimes a short circuit. Sometimes a minor mechanical damage gives a delayed effect: in this case, the integrity of the vein can be disrupted not instantaneously, but after a few months or even a year.
Defective wire or poorly executed wiring. Damaged cables tend to be permanently heated, which can lead to fatal consequences. After a sudden jump in tension, such veins can break off.
Incorrect use of adapters. Failures in the operation of the wiring may be caused by improper operation of extension cords or tees. This can happen if several high-power household units are connected to the device, for example, a washing machine and a dishwasher. In this situation, the cables that come from the adapter are subject to overheating and increased stress, which can lead to melting of the insulation.

In all cases, it is necessary to identify the location of the cable fault in order to immediately repair the damage.

General instructions for locating a cliff site

If a fault is detected, it is necessary to immediately take measures to find out the cause of the damage and to search for an approximate location of the defect in the electrical networks.

First of all, you need to check which rooms have problems with the supply of electric current.

Melted switches or sockets indicate that the wiring damage has occurred on the adjacent sections of the power grid

Then you should find out if the cable breakage is affected by lighting equipment or sockets, by checking them with a tester. Depending on the answers to the last question, you should follow the instructions given below.

Detecting the place of breakage in case of problems with sockets

In this case, the malfunction may be caused by a phase or zero cable fault.

Phase wire breakage

First of all, you need to determine which machine is connected to the damaged socket. Having found out the power source to which is connected faulty cable, it is necessary to turn off the electricity and disconnect from the shield all the wires: "zero", "phase", "ground" (if available).

In order to find the power source of the outlet, it is necessary to switch the machine, while checking the presence or absence of phase

Then it is necessary to arm with a multimeter, with which you should consistently check all the connections adjacent to the damaged object, starting from the cable in the shield. In this way, you can identify the affected area: usually between two sockets there are two, and in the presence of "earth" and three wires. If only one vein can be identified at this site (for example, zero), we can safely assume that the precipice is located right here.

Terminal boxes are often inaccessible because they hide under a layer of finishing materials. If you have access to such devices, it is advisable to open them, as often they damage the veins. If no faults are detected at this time, the indicator should check the non-working wires, starting with the twists, and also inspect the terminal strip and disassembled twists.

A wiring option is possible that does not require the installation of a box. In this case, the cables go unhindered from one outlet to the other, while each wireframe comes with two wires that make up 4 cores. In this case, in order to detect a defect, it is required to remove the devices located at the beginning and the end of the faulty section, after which to investigate all the wires with a multimeter.

Open circuit of the neutral wire

The search for a zero-wire break is practically the same as the detection of a "phase" break, but it has certain peculiarities.

On the break of the zero core on the contacts of the outlet you can find out by showing the indicator screwdriver to this place: it will be on "phase", but it will show the absence of "zero". In this case, it is useless to use a multimeter for testing the voltage, since this device will show an arbitrary value from 0 to 220 V.

It is important to observe strict precautions: because of the existing phase, there is a danger of electric shock even when the outlet is not working.

In the intricacies of wires placed inside the wall, it is difficult to understand. To identify a faulty cable, it is often necessary to check the integrity of each network element

If a three-core cable is used for power distribution, a "grounding" conductor can be used as a last resort for the transfer of "zero". However, in this case, the "ground" function will be absent in the socket: this is undesirable in general and is unacceptable when it comes to high-power household appliances, for example, a washing machine.

Troubleshooting wiring for lighting

If the damage occurred between the box and the switch or an artificial light source, use the indicator (single-pole voltage indicator) to detect the presence or absence of a "phase".

In the absence of light in one of the rooms, it is necessary to first check the condition of lamps and cartridges. If their condition does not cause fear, most likely, it is a break in the cable

To do this, the light switch is opened; in the off position, the presence of a "phase" on the contacts is checked. In its absence, the breakage is located between the box and the switch. If there is a "phase", its presence is also checked on the luminaire (in this case, the switch is turned on). In the absence of a "phase" on all cores, the fault location should be sought between the luminaire and the box.

There is an option where, when the lighting is off and there is no "phase" on the switch, the indicator shows its presence on the lamp. Such a layout means that the zero and phase wires are reversed.

To solve the problem it is necessary to trace the passage of the "phase" wire along the entire distance of the laid cable, starting from the box to the luminaire and then to the switch. It is necessary to find the point where there was a change of wires, disconnect them and perform a new fastener by correctly arranging the wiring.

When performing a damage search, disconnect the power supply to the cable, which can be from any source. In some cases, it may be necessary to burn the insulation of the wiring, allowing to reduce the level of resistance.

Having established the approximate zone of damage, it is necessary to proceed to an in-depth search for the site of damage, which can be carried out using various methods.

Finding the exact place

There are a variety of ways to find a damaged wire.

Opening the wall during major repairs

The most simple means of detecting cable damage is complete cleaning of walls from finishing materials. In this case, it is easy to inspect the shrouds made for placing hidden cables. They differ in color from the rest of the surface, besides they are additionally applied with putty.

Searching for a wire break is sufficient difficult process, therefore, in some cases, it is advisable to call specialists of the power network that have special equipment

However, since in this case, complete exposure of the walls and removal of decorative coatings (paints, wallpaper) is required, so it is advisable to apply it when overhauling the room, which involves a new design of vertical surfaces.

Boolean Search Method

If the tenants do not have an electricity plan, you can try to recreate it with the help of logic.

Professional electricians are well aware of the basic principles of building electrical communications, namely:

The wiring is always installed strictly along vertical and horizontal lines, that is, the cables always run parallel and perpendicular to the floor.
Power lines located above the outlets and switches always go strictly upwards, which means that drilling and nailing are strictly forbidden on this site.
The wiring is usually pulled at a distance of 15 cm from the floor or, more often, the ceiling, so here also it is not necessary to carry out repairs.

Knowing the location of outlets and switches, you can create a scheme of communications in the apartment.

Knowing the basic principles of location electrical networks, you can shorten the time of searching for faulty wiring, focusing on the most likely areas of damage

Nevertheless, to check the proposed plan for the location of electrical networks, it is advisable to use special instruments (professional or home-made), which will be discussed below.

Aids: radio and microphone

If necessary, the site of damage to the cable will allow a conventional transistor receiver. It must be tuned to 100 kHz waves and brought to the intended damage zone. Above the place where the power grid passes, the noise of the receiver will increase, and over the place of burst the crack will subside.

Do not rush to throw the microphone away from the old radio. This elementary device will help you to identify the place of damage to the electrical wire

Instead of a radio receiver, you can also use a microphone from a portable tape recorder. It should be plugged into the network and carried over the wall surface where the faulty cable is supposed to be located. As in the previous version, a crash will be heard above the electric path, which will be silent when a cliff is detected.

It is important to take into account that the improvised devices give an error of 10-15 centimeters. In order to avoid electric shock when performing repair work, it is better to insure yourself by taking extra precautions.

Search with professional equipment

Special devices allow not only to detect the cable, but also to find the area where the burnt or broken wire is located.

On sale there are inexpensive household testers with which you can easily inspect the wiring and find the damaged wire

Among the various devices used to search for damage are:

Signaling device E-121 ("Woodpecker"). With it, you can work at a depth of up to 7 centimeters, which allows you to detect electrical wiring and a torn vein, even in a wall, finished with plasterboard.
Detector MS. Another popular detector that is easy to use and allows you to get a fairly accurate result.

These and similar devices give a quick and reliable result, but they have certain drawbacks. First of all, they can not be used to find a cable protected by a foil shield. Such devices react not only to the wiring, but also to other metal objects, for example, nails and screws in the wall. Finally, although these detectors are easy to use, working with them requires attention and certain skills.

You can also investigate the wire in the wall using an indicator screwdriver, but this method is suitable only for the case when live strands are at a shallow depth in concrete.

The thermal imager allows not only to determine the location of the damage, but also to check the quality of the electrocommunications in the building, having discovered the network malfunctions (short circuit, leakage)

Bosch DMF 10 zoom, VP-440, POSP-1, GVT-92, GVD-504A and others are also suitable for detecting buried wires and the point of damage to the conductor under the plaster. It is possible to use a locator or other professional equipment.

Check wiring by self-made device

An alternative to expensive professional equipment can be a budget metal detector, made of improvised material. One of the most popular options is the device, for which old CDs are used. Despite the apparent simplicity of this device, it allows you to find wiring under voltage, which is under the decorative trim at a depth of 10 cm.

Manufacture of a metal detector by one's own hands

For the device you need:

unnecessary CD and DVD discs (two-sided allow to make the device more sensitive);
the "Krona" battery;
calculator (simple model);
glue;
insulating tape.

Step-by-step instruction:

First of all, you need to cut off the headphone plug. Strip the insulation on two wires, stripping the wires by 0.5-1 centimeter.
Naked wires should be divided into 2 parts, so that there are 4 veins.
Each of the disks is attached to one of the contacts, taken from different groups. On a bilateral carrier, they are attached arbitrarily, on a one-sided carrier to the writing side.
The installed wires are fixed with glue, and then additionally fixed on the discs with the help of insulating tape.
The remaining two wires are connected in a standard way with the positive / negative of the battery, after which the exposed contacts are carefully insulated with tape.
The included calculator is also attached to the CD with an insulating material.
A DVD is placed on top of the calculator, then the structure is fixed with an insulating tape for integrity.
A battery is attached to the surface of the video disc using tape.

After that, you can test the device, which will sound over metal objects.

A homemade metal detector can also be made from a radio receiver operating in the AM range and a calculator. The included elements should be placed in a box of discs and fixed with electrical tape

Modern construction technologies often involve the use of beacons or markers in places where electric networks pass. This greatly facilitates the process of searching for damaged veins with the help of both professional and amateur means.

Search for electrical wiring for preventive purposes

Typically, electricians or residents begin to look for cables passing through the apartment, when there are violations with light. Meanwhile, this should be taken care of in other situations:

Before the planned redevelopment of the apartment. In any manipulation affecting even non-load-bearing structures (for example, when analyzing a partition or when moving a doorway), it is important to consider the location of the electrocommunications.
Before installing the sconce, attach a picture or another wall-mounted accessory. For carrying out such work it is important to know where the cable is located, so as not to stumble upon it when drilling holes or driving nails.
When buying a home. Immediately after buying an apartment, it is advisable to draw up a plan of electric grids located on walls and ceiling. The scheme also should note the location of sockets, switches, junction box. This markup will help when performing capital / cosmetic repairs of the apartment, as well as when arranging the furniture.

To search for a power line, you can use self-made or professional devices, which were described above.

Elimination of breakage of phase and zero wires

Having ascertained the exact location of the cable break and having determined its feature (damage to the "phase", "zero"), you can start repairing it.

To remove the damaged phase conductor, follow these steps:

First of all, you need to disconnect the phase wire.
With a hammer or other tool, remove plaster or other finishing from the wall surface. It is necessary to free the site along the route by about 10-15 cm, grabbing the zone to the right and left of the alleged center of damage.
It is required to separate the damaged core from the mains, trying not to touch the insulation on other cables.
Copper wiring is better to be connected by soldering. To do this, you need to take an additional piece of a similar product, from which the repair jumper is made.
It is also desirable to pre-coat the damaged cable with a polyvinyl chloride or heat shrink tubing. The ends of the bridge are twisted with the ends of the broken wire, after which the joints are soldered.
On the repaired place tightly (in several layers) an insulating tape is applied, after which the tube, carefully put on the wire, carefully moves on it. This ensures the tightness of the fasteners.

Aluminum wires are less suited for soldering, which also requires special solder and flux. In this case, the most reliable method of connection is the WAGO terminal, with the place of its fastening required to be wrapped with electrical tape and additionally covered with a sealant.

The wires can also be connected using a junction box. To do this, the insulated wire is removed from the ragged wire, after which its ends are bred in different directions. With a perforator, equipped with a special crown in the wall, a hole is punched, the dimensions of which coincide with the parameters of the junction box.

The device is inserted into the opening, after which it is fixed with alabaster. Wire is placed in the box, while the damaged wires are connected in color and wrapped with an insulating tape. In conclusion, the box with the restored wires is closed with a lid.

If the cables are placed in special tubes, the damaged wires should be carefully pulled outward, and instead of them, insert new wires with a pulling device.

If the zero cable is damaged at the beginning of the job, it must be disconnected from the bus, attaching the phase conductor. The rest of the process is the same as described above.

After any type of repair, the fins are covered with plaster. To give tension to the renovated wiring can only after the drying of the coating completely.

Laying of open electric networks

Repair work related to the breakage of the wire hidden wire, usually require complex construction and repair work: the dismantling of the decoration, the strobing of walls with the subsequent sealing and coating of the wall with decorative materials.

Eliminating the breakage of the hidden wire often requires the dismantling of the finish, so it is advisable to combine such works with the capital repair of the premises

Since immediate carrying out of such manipulations is not always available, in some cases it may be advisable to lay a new wire on the surface of the wall, covering it in a special box or tube.

The videos below show detailed video instructions for finding a damaged cable.

Search for cable breakage with a metal detector:

If you have a radio at your fingertips, it can also help:

Searching for a wire break is a complicated and important process. It requires attention, accuracy and strict adherence to instructions. Applying the above methods, you can find the location of the wire damage and eliminate the defect found.

Failures in the well-coordinated operation of electrical wiring usually cause a huge amount of inconvenience. An even greater problem can be attributed to the investigation of cable breakage areas, thanks to which, the stable functioning of electrical appliances comes to an end. It is not difficult to find a breakage of the electric wiring only when you have an open wiring and the rush spot is visually visible.

In the event that the electrical wiring is hidden, it is much harder to detect the rush. Definitely, we need a special device - track - finder. In most situations, it is necessary to call professional electricians, but in some cases, in principle, it is possible to find a hidden wiring breakdown and on their own.
How to find the phase and zero in the wiring.
First, you need to understand what kind of wire is broken - zero or phase. For work, we need a screwdriver - an indicator, with which you need to "feel" every failed electrical equipment contact. In the event that a current is applied to the outlet, only one of the contacts must be in the socket. In a similar situation at the switch, one contact will be located in the off state, or all the contacts are in the ON state.
If the screwdriver - the indicator determines that the phase - is, then, therefore, the break occurred on the zero cable. In the event that the electrical wiring, in addition, is hidden, it is only specialists who are able to detect the fault zone and repair the malfunction. A simple man in the street to correct the phase break is virtually impossible.
How to find a wire break with a tester.
Only if the electrical wiring is organized in an open way, and the wire is visible from the distribution center to the break zone, and in this case an electronic tester is used to determine the fault point. First of all, for carrying out the search process with the tester, it is necessary to disconnect the current supply first to the distribution node, and then directly to the wire. At the cable outlet from the distribution center, the first incision on the insulation must be made. It is needed in order to be able to get to the metal core, the next incision is made about one meter.
Then you need to measure the resistance on this piece of wire. In the event that the electrical resistivity in this segment is small, then, for sure, there is no wire break. After the second notch, through the meter, you need to make another incision, and again measure the electrical resistance of the wire in a new section. Under this scheme, it is necessary to make incisions and measurements, until you determine completely the zero electrical resistance. This segment will be the zone of the wire break.
How to fix a wire break.
We examine the damaged section of the wire. On it, too, incisions are made, but with a smaller step. So, between close cuts on the faulty segment there must be a gap of half a meter. Having found a damaged zone by a similar method, but already on a smaller piece of wire, it is necessary to repeat the process with incisions again.
The breakage point of electrical wiring using this method is determined extremely accurately, practically up to one millimeter. Most often, the break point is much earlier, and the need for an absolutely clear finding of the cliff site does not arise. Then the repair work is carried out, and then all the cut wires are very electrically insulated.
How to find a broken wire in the wall of brick or concrete.
Only if the wire with the phase is located in the wall of brick or concrete, then the site of its breakage can be detected using a special non-contact device for working with concealed wiring. During the reconnaissance procedure, keep in mind that the wiring hidden in the wall structures passes strictly vertically and horizontally, all changes in the route of the wires are made strictly at an angle of ninety degrees.
This will allow to find with the utmost accuracy the path of electrical wires from the distribution node to the electrical device. All that needs to be done is to move the device over the wiring, along the wall surface, and on the section of the wire break it will certainly notify you. More often the device for work with the latent wiring on a site of breakage disconnects an audible signal giving.

The reasons for the problems in the wiring can be very much, it can happen at any time, including the time when the wires are live.

It is to blame for this can be a marriage wire, poor-quality installation, erroneous and much more.

In those places where the cable is damaged the wire will heat up, and if there is an increased voltage, it breaks.

The cause may be mechanical damages, as a result of incorrect nailing and the drilling of holes in the wall, a problem can also arise due to increased voltage.

How to determine an open in wiring

The wiring interruption can be of two types, it can be a break in the hidden or open wiring. If this happened with a hidden wiring, you need to know how to find a wiring interruption, the cable line will help you find a conventional transistor receiver.

To begin with, you can attach any device to the outlet, for example, an electric shaver, the receiver should be placed on the mid-wave range and move it over the surface, if you hear a noise and crack, then this is where the wiring was cut off.

If there is no light in the apartment, you need to understand whether the voltage is on the meter. To do this, you need an indicator tester, they need to touch the counter contacts, before that, turn off all the machines on the switchboard.
If the tester is placed on the meter, there is no voltage, then the fault location is in front of the counter. If it is there, the precipice occurred in the apartment. Sometimes, to eliminate all the malfunctions you just need to replace the fuses.
If the case is more complicated, you need to fix the system problems. Most often, the breaks occur in draw-out boxes, as with a high resistance, the wires can burn out.
If the damage occurred in the open wiring, then it is easier to find and fix it, if the wiring is closed, then it is better to contact a specialist, since there are a lot of work to be done.

Before beginning the work on eliminating the clipping, you need to take a voltage tester, you will also need a special screwdriver indicator and a simple screwdriver, pliers and a knife with an insulated handle, insulating materials and a contactless indicator of a hidden electrical wire.

In order to find a broken open wiring it is necessary to understand which wire is damaged: phase and zero, this will help the indicator screwdriver, it will detect all the contacts of switches or sockets and check their serviceability.

If the socket is live, there is only one contact. If we talk about the switch, then at the moment of power amplification, only one or all of the contacts can be disconnected. If, thanks to a screwdriver, it is found that the phase is working, it will be seen that the zero wire is damaged. If the wiring is hidden, it is better to invite professional electricians to determine the fault.

It will be better and in case if it is damaged, it is necessary to try not to overestimate its capabilities, especially in such a serious matter.

If you have sufficient skills in working with wiring, you can find a break of the hidden wiring yourself, for this you can use an acoustic or induction method.

For the acoustic method, you need a generator, it needs to be connected to the cable, you also need headphones and an acoustic sensor.
The process consists in listening to the wiring with these devices. At the clipping site, you will hear clicks in the headphones, and the generator will need to be set up correctly.

If you decide to use an induction method, the generator must be connected to the power cable, determine the load level and apply the sensor, where there is a break, you will also hear signals.

If you have concrete or brick walls, use a non-contact indicator to find the hidden wiring. All cables in such buildings are installed horizontally or vertically, and all turns are made at right angles.

Usually, in such houses is well known. The indicator should be moved along the wall and in the area of the cliff, you will hear a signal. You can use other methods, but to apply them, you need to invite specialists of companies that have a license to conduct such work.

How can I eliminate the wiring interruption?

Before you begin to work on eliminating the clipping, you need to turn off the phase wire. Using a hammer, remove all the plaster in the center of the damage, as well as to the right and left, you need to release everything to 15 cm.

The ends of the torn wire should be placed in different edges. Using a perforator and a special crown, make a hole in the wall so that the junction box fits into it.

Place a box in the opening and fasten it using alabaster, you need to place the wires neatly into it. If there is a supply, the damaged wires need to be combined in colors and wrapped with electrical tape.

After the end of work, close the box with a lid and cover the repaired place with plaster. If the wiring is in special tubes, the torn wires need to be carefully pulled out, and instead of them, put new wires with a pulling device.

In general, this work requires quite a lot of knowledge, especially when it comes to hidden wiring, but with a certain skill, it is quite feasible. If you want to know more about this, you can visit our website, there you can always find a lot of useful information.