The refrigerator burned from the voltage jump

The technique burned from a jump in tension: who is to blame and what to do?

My acquaintances and not very acquaintances regularly turn to me for advice on what to do and where to contact, if expensive technology has burned down due to a surplus jump. Of course, the main question is whether it is possible to get compensation from the state body. Working as an engineer in Energonadzor (FGEN), I know firsthand the situation both from the consumer and from the power supplier. Realizing that the situation is relevant for many, I decided to write detailed instructions on how to behave in such a situation correctly.

In accordance with GOST 29322-2014, which is now used instead of an outdated standard 29322-92, the voltage in the mains in normal conditions should be at 230 V level. Deviation from the norm is allowed, but within small limits: the long.Term cannot exceed 5%, the short.Term. 10%.

But in practice, more significant voltage surges occur often. The causes of significant differences can be as follows:

• Sudden shutdown of electricity is one of the most common reasons for the failure of electrical engineering.
• Short circuit on power lines.
• The fall of the tree, which caused a break or closing of the air line.
• Cable damage during digging trenches.
• Thunder and lightning. These natural phenomena create almost the same effect as with a short circuit.
• Poor contact of the conductors, as a result of which the phase is distorted.

Any voltage leap caused by the above reasons may be destructive for technology. It remains to find out who should compensate for losses in such cases.

How the refrigerator works

The refrigerator is a closed hydraulic system filled with a special refrigerator. A refrigerant. Freons are used as a refrigerant in household refrigeration units, and ammonia is used in industrial.

The compressor driven by the electric motor pumps the refrigerant through the entire system. Passing different sections of the refrigerator, the refrigerant changes its aggregate state, its temperature and pressure changes.

Inside the refrigerator itself is a special coil, which is called the evaporator. The refrigerant is supplied to the evaporator in a liquid state at low pressure and temperature. Without going into the complexity of thermodynamics and without building the equations of the thermal balance, I will say that heat selection occurs in the evaporator (t.E. Heating) from warmer products, walls of the refrigeration chamber. Through the walls of the evaporator, heat is transmitted to the refrigerant and it begins to boil, because it is at low temperature and under low pressure.

How the refrigerator works

Further, from the evaporator, the gas.Shaped refrigerant through the inlet valve is absorbed by the compressor, compressed by the piston, its temperature rises, and under high pressure it is pushed into the capacitor.

We all know the capacitor well. This is a coil on the back of the refrigerator. Passing through the condenser of the refrigerant pair give their heat through the machines of the capacitor to the surrounding room. The refrigerant is cooled and goes into a liquid state.

Further, the liquid refrigerant is pushed to the reduction valve. Passing through this valve, the pressure and temperature of the refrigerant decrease and it again enters the evaporator. Further, the entire cycle is repeated again.

The hydraulic part of the refrigerator we examined. We go further. The compressor is driven by an electric motor and is the most vulnerable and expensive link in the refrigerator.

How to prove guilt

Now you should figure out where to call after what happened. First of all, if after a thunderstorm or just suddenly you noticed that the light blinked and your household appliances burned out due to a voltage jump, you need to call an emergency repair team of electricians. They must draw up an act that there was a leap of voltage. The call is recorded in the journal by the dispatcher on duty.

Interesting! There are equipment at substations that fixes voltage surges. If after that you have burned out household appliances, and it was not possible to call an emergency team, then according to the collective application, the supply organization should provide information or a certificate if there really was a jump. A sample application for the provision of this information you see below.

After that, you need to take the burned equipment to the service or call the master at home. The specialist must conduct an examination. During this examination, it should be determined whether the leap of the voltage caused the failure of household appliances. If you immediately ordered services for repairing the device. Specify in advance if the check gives out this service. You can demand the money that you spend on repairs and examination from the guilty organization to prove the amount of the amount spent will be received checks.

Important: the service must have an appropriate license and certification.

So that you have more chances to prove your case, you need to cooperate with your neighbors if the same problem as yours. With the act and results of the examination, you should contact the organization supplying electricity or to the management office of your home.

The application must be registered as an incoming letter. To do this, usually, in the upper left corner put a stamp on which the date and number of the letter are indicated. Otherwise, it can “accidentally” get lost. One copy should stay in your hands, should also put a stamp on it. The stamp itself can be placed in another place, as in the photo above, by the way you can use this as a sample claim.

The following are two options for the development of events:

Interesting: experts say that there is a positive statistics on resolving such issues in favor of injured consumers.

Is it possible to protect the refrigerator from the negative effects of the power supply power supply?

Such negative influences are phase distortions, interruptions, failures, voltage emissions. The reasons can be different: poor connection, short circuits on the network, a sharp increase/decrease in the number of consumers, thunderstorms, overload or inclusion of a power plant after an accident, etc.P.

What can happen to the refrigerator? The most unpleasant consequences requiring repairs are undoubtedly considered the burning out of the engine windings and the failure of the control unit. Over, in the case of the latter, it does not matter whether it is an electromechanical block used in older or completely electronic in modern models of household refrigerators. And not always, contrary to the existing opinion, the repair of the electronic system control module will be more expensive than electromechanical. The masters of our company know all the subtleties of eliminating the breakdowns of this type, taking into account the specifics of a particular brand of the refrigerator and, if such a disaster is about, they are ready to efficiently and urgently carry out repairs by Minsk.

How to still protect the refrigeration device from the jumps of the voltage of the house?

Provide the correct connection. Highlight a separate outlet for the refrigerator, well.Mounted, not shaken, with tightly clamped contacts. Do not use tees and do not connect any other electrical appliances to this outlet, especially high power, for example, electric kettle, a microwave oven, multicooker, etc.D. It is desirable that the circuit of this block of sockets connects to the input of the mains through a good protective shutdown device.

Submit power to the refrigerator through the network filter. However, it is worth explaining here. A filter is far from a panacea. It contains an electronic element. Varistor. Since the varistor is usually used with a face value of 470 volts, it will not help with an increase in voltage, which is most often up to 380V, therefore the threshold of the operation will not be reached. For refrigerators, the second component of the filter will be more useful. A reusable fuse that opens the circuit when the current of the permissible value is exceeded or at the KZ.

To smooth out electromylets use voltage stabilizer. Which must be correctly selected. The type of wiring in the house should be taken into account. Single.Phase or three.Phase, total power consumed by the power of electrical appliances connected to the stabilizer and its operating voltage range (usually 150. 250V). True, this device is not cheap, but to decide to everyone yourself whether it is worth acquiring it. This will be especially relevant to citizens living outside Minsk in settlements where there are more often malfunctions in the electric network.

Smeg premium refrigerators

The manufacturer SMEG offers premium quality refrigeration equipment. He uses innovative solutions to guarantee long.Term storage of products while maintaining their taste and beneficial properties.

The line presents built.In and separately standing models. You can find the impressive Side by Side unit, single.Chamber or two.Chamber refrigerator. The assortment has versions with a complete No Frost and with the usual drip defrosting.

Repair of electronics refrigerators at home

Washing machines, TVs, video recorders, computers. All this technique is united by one thing: it is powered by an AC network. Rather, even a changeable current. The voltage in the network jumps. Sometimes so much that all home electrical appliances turn into a useless trash in a moment.

One.1 malfunction in the mains. Renes and differences (nature of phenomena)

Not a single room is actually insured from failures in the mains.

The voltage in the networks of our apartments “walks”, its real level is rarely equal to the standard 220 in. For various reasons, the so.Called voltage subsidence constantly occurs when it falls, or jumps when rises. GOST allows a deviation of voltage levels from 220 V by 10%, and indeed, a voltage of 240 V is not dangerous for home appliances, and at 200 V, light bulbs in the chandelier will simply shine slightly. But there are voltage surges when it instantly rises to 300 V and above. In such cases, the equipment working from the network may die. And the main reason for such jumps is one.

Each residential building includes three working phases, a working “zero” and grounding. Further, one working phase and a working zero wire are brought to each apartment through electrical panels, the largest load is on the zero wire. This wire carries the maximum load because each apartment is connected to its phase wire, and they have a common “zero”. The voltage between phase and zero wires is 220 V.

Когда множество потребителей энергии одновременно включают в сеть такие приборы, как обогреватели, СВЧ-печи, электрочайники и стиральные машины, нагрузка на сеть резко возрастает и электропроводка домов часто не выдерживает. Due to the large current strength, the wiring is heated, destroyed, and as a result there is a rupture of the circuit. With a large load, aluminum wires are scattered from heating, and copper is burned out. Most often, the wire of the zero phase is burned out, the largest load in the house is on it. Over, the cliff does not occur in the apartment, but in the place where the load is maximum. On the cable section between the line and the electrical panel, to which all the zero wires of individual apartments reach. As a result, after a “zero” break, the apartments connected to one shield are connected to each other and each to its phase. As a result of this, the voltage in each apartment increases sharply (theoretically. Up to 380 V), which can disable household appliances.

One.2 What technique is out of order.

Unfortunately, the household appliances are not saved from voltage jumps, or built.In protective blocks in each electrical panel in each electrical panel in each electrical panel.

The work of blocks and automatic machines is based on fuses that respond to increasing current strength. They simply do not react to an instant increase in the network voltage.

According to numerous service centers, where residents carry broken equipment, due to tension changes, unprotected computers, televisions, music centers, video recorders and DVD players, Wi-Fi equipment, etc.D. Most often, power supplies are burning. It’s not too scary. For example, for a new power supply and its installation in an inexpensive TV with a diagonal of 21 inch will have to pay 700-750

But sometimes, with voltage surges of 300 volts and above, complex electronics may suffer. Then the purchase and work on installing new microcircuits on the same TV will cost from 1 thousand. Refrigerators and washing machines are less exposed to voltage drops: protection in these devices is relatively stronger. However, this does not mean that they do not burn. If the refrigerator burned out as a result of the voltage jump, you have to change the engine or restore the control unit.

.

One.3 malfunctions in the mains. Who is guilty?

There can theoretically be many guilty of tension surges. Indeed, from the power plant to the end consumer (TV or computer), electricity passes through many sites. Over, each site has its own master. In St. Petersburg and the Leningrad Region, electricity is generated by the company Petroelectrosbyt. Then it is transferred to the city electric grid company, which transports it to the district substation. From there, electricity is transmitted to residential buildings, where the area of ​​responsibility of the des and its contracting organization begins. And only then does it reach our TVs and music centers.

In theory, on each of these areas, a failure is possible. Anything can be the reason: the negligence and inaction of the DEZ employees, repair work on any site, the worn equipment of the substation. Even careless employees of the neighboring construction can accidentally hurt power cables that are underground. In addition, it is not worth denying that the culprit of the voltage jump, for example, on a platform of three or four apartments, may be a tenant, contrary to the advice of electricians, constantly giving a huge load on the house power grid.

However, power engineers unanimously declare that mainly in the jumps of tension the employees of dezs and contracting organizations are to blame. The fact is that, as already mentioned, the voltage jump usually occurs as a result of a break in the zero wire in the area of ​​the electrical panel, and this. And favorite excuse. “You yourself have taken everything in the world here, no wires will be enough for you”. In fact, it has no reason. So, according to the current standards, for each average apartment, 3.5 kilowatts of power consumed is allocated for each average apartment. Ideally, the power grid of a separate apartment should keep the loads of 6-7 kilowatts. This is enough to normally withstand the work of energy-intensive technology: microwave oven, washing machines and heaters. “.

In addition, according to the Decree of the State Construction of Russia of September 27, 2003, 70 “On the approval of the rules and norms of technical operation of the housing stock”, contractors are required annually from October to May to carry out full verification and commissioning of engineering structures, including electrical equipment. In simple words: Electricians of the contracting organization must pass and check for wear and wear all electrical support, wiring, zero wires in each house on their site. After that, the commission accepts work, and a warranty is given to the state of the electric networks in one year, until the next check. However, in reality, they check after the sleeves. It is for this reason that energy is believed, failures arise in the mains, the sections of which are being required.

The refrigerator burned from the voltage difference

My name is Svetlana. I have the following question: my mother lives in a private house in p.Game and there were constant voltage drops in the mains (wiring in the house changed a year ago). Regularly disconnect electricity for short intervals then then turn on again. And so 5 times per day can be.17.01.2019 from the next voltage jump burned out a TV. With this, we decided not to contact the management company T.The TV was purchased for a long time, 18.01.2019 My mother acquired a new TV and stabilizer in installments. Today, as it turned out, the electricians assigned planned work on checking and throwing the wires from a pillar to the house, about which the residents of the houses were not warned. As a result of these measures, woeful electrics mixed up the phase and when the electricity turned on, the stabilizer and the refrigerator burned down. When asked by mom to write an application for material damage, and telling them that the stabilizer 18 was bought.01.19 they simply answered “he is under your guarantee” and left. Tell me how to be in this situation. Mom is already in retirement and constantly buying a new opportunity. Thank you in advance for your response.

From the voltage difference in the house “burned” refrigerator. The energy company’s energy company compiled acts. What documents should be provided so that the management company has compensated for the damage?

The neighbors called an electrician from the management company since they had a low voltage. As a result of the repair, there was a jump in the voltage and household appliances burned down in our apartment. They wrote a statement to the house management, to which they received an answer: repair in licensed firms with diagnostics and bring checks we will compensate. The equipment was repaired, each unit has an act that the breakdown occurred as a result of the voltage difference. Checks are handed over to the house management. On the phone, a lawyer of the management company proposed compensation for damage against rent. Since the amount is not small, the repair of the equipment lasted 10 days (refrigerator, stove, washing machine, microwave oven) and also taking into account the fact that a paralyzed person lives with us (mother. Disabled person 1 group), categorically refused. Today, an official answer has been received by registered letter: the status of the DV considers your claim to be non.Viable and not subject to satisfaction on the following grounds: P.3 tbsp. 30 LCD, the owner of the dwelling is obliged to support this premises in proper condition. The act of technical survey establishes that the load on your apartment is 17.1 kW. In accordance with.5.6.3 of the rules and norms of technical operation of the housing stock (Decree of the Gosstroy of 27.09.2003 70) The owner of the housing stock is obliged to modernize and reconstruct the electrical equipment of residential buildings in order to ensure the opportunity to the population to use household electrical appliances with a capacity of up to 4 kW in each apartment with the installation of protective shutdown. On the basis of the foregoing, we consider your claim to the non.Satisfaction.

Of the 15 apartments in the entrance, in four, the technique burned down. But the neighbors agreed to compensation at the expense of the rent, since the amount of small. Agree to confirm that the fact of the voltage difference was.

Submit to the court for compensation for damage, including compensation for non.Pecuniary damage?

We have a whole area disconnected from light 4 times a day for 3-4 minutes, at a completely different time. Explain this by the fact that you need to switch to another source of energy. This lasts more than a month, there is no graphics. Voltage drops when turning on. Today the refrigerator has burned down. What can be done? Thanks to!

The refrigerator burned from the voltage difference. Called the masters, and said the voltage pass. The neighbors have the same trouble. The refrigerator is 2 years old. Wrote a statement, electricians pull the rubber, the authorities leave the conversations. How can we be? With respect to Pavel.

Household appliances burned out from the voltage difference. TV, refrigerator, reclings, where to go?

We have periodically, at any time, it can be turned off the light for 10-15 minutes. Can be once a week, and they can three times. It does not depend on the weather and the time of day. Disable without warning. I have a refrigerator from this (as I believe).

If I go to court, can I recover this damage and who will be the defendant? If I conduct an examination and it will be proved that this is from the voltage difference, if I will return the money for it if I win the process?

Repair of electronics refrigerators at home

Washing machines, TVs, video recorders, computers. All this technique is united by one thing: it is powered by an AC network. Rather, even a changeable current. The voltage in the network jumps. Sometimes so much that all home electrical appliances turn into a useless trash in a moment.

One.1 malfunction in the mains. Renes and differences (nature of phenomena)

Not a single room is actually insured from failures in the mains.

The voltage in the networks of our apartments “walks”, its real level is rarely equal to the standard 220 in. For various reasons, the so.Called voltage subsidence constantly occurs when it falls, or jumps when rises. GOST allows a deviation of voltage levels from 220 V by 10%, and indeed, a voltage of 240 V is not dangerous for home appliances, and at 200 V, light bulbs in the chandelier will simply shine slightly. But there are voltage surges when it instantly rises to 300 V and above. In such cases, the equipment working from the network may die. And the main reason for such jumps is one.

Each residential building includes three working phases, a working “zero” and grounding. Further, one working phase and a working zero wire are brought to each apartment through electrical panels, the largest load is on the zero wire. This wire carries the maximum load because each apartment is connected to its phase wire, and they have a common “zero”. The voltage between phase and zero wires is 220 V.

Когда множество потребителей энергии одновременно включают в сеть такие приборы, как обогреватели, СВЧ-печи, электрочайники и стиральные машины, нагрузка на сеть резко возрастает и электропроводка домов часто не выдерживает. Due to the large current strength, the wiring is heated, destroyed, and as a result there is a rupture of the circuit. With a large load, aluminum wires are scattered from heating, and copper is burned out. Most often, the wire of the zero phase is burned out, the largest load in the house is on it. Over, the cliff does not occur in the apartment, but in the place where the load is maximum. On the cable section between the line and the electrical panel, to which all the zero wires of individual apartments reach. As a result, after a “zero” break, the apartments connected to one shield are connected to each other and each to its phase. As a result of this, the voltage in each apartment increases sharply (theoretically. Up to 380 V), which can disable household appliances.

One.2 What technique is out of order.

Unfortunately, the household appliances are not saved from voltage jumps, or built.In protective blocks in each electrical panel in each electrical panel in each electrical panel.

The work of blocks and automatic machines is based on fuses that respond to increasing current strength. They simply do not react to an instant increase in the network voltage.

According to numerous service centers, where residents carry broken equipment, due to tension changes, unprotected computers, televisions, music centers, video recorders and DVD players, Wi-Fi equipment, etc.D. Most often, power supplies are burning. It’s not too scary. For example, for a new power supply and its installation in an inexpensive TV with a diagonal of 21 inch will have to pay 700-750

But sometimes, with voltage surges of 300 volts and above, complex electronics may suffer. Then the purchase and work on installing new microcircuits on the same TV will cost from 1 thousand. Refrigerators and washing machines are less exposed to voltage drops: protection in these devices is relatively stronger. However, this does not mean that they do not burn. If the refrigerator burned out as a result of the voltage jump, you have to change the engine or restore the control unit.

.

One.3 malfunctions in the mains. Who is guilty?

There can theoretically be many guilty of tension surges. Indeed, from the power plant to the end consumer (TV or computer), electricity passes through many sites. Over, each site has its own master. In St. Petersburg and the Leningrad Region, electricity is generated by the company Petroelectrosbyt. Then it is transferred to the city electric grid company, which transports it to the district substation. From there, electricity is transmitted to residential buildings, where the area of ​​responsibility of the des and its contracting organization begins. And only then does it reach our TVs and music centers.

In theory, on each of these areas, a failure is possible. Anything can be the reason: the negligence and inaction of the DEZ employees, repair work on any site, the worn equipment of the substation. Even careless employees of the neighboring construction can accidentally hurt power cables that are underground. In addition, it is not worth denying that the culprit of the voltage jump, for example, on a platform of three or four apartments, may be a tenant, contrary to the advice of electricians, constantly giving a huge load on the house power grid.

However, power engineers unanimously declare that mainly in the jumps of tension the employees of dezs and contracting organizations are to blame. The fact is that, as already mentioned, the voltage jump usually occurs as a result of a break in the zero wire in the area of ​​the electrical panel, and this. And favorite excuse. “You yourself have taken everything in the world here, no wires will be enough for you”. In fact, it has no reason. So, according to the current standards, for each average apartment, 3.5 kilowatts of power consumed is allocated for each average apartment. Ideally, the power grid of a separate apartment should keep the loads of 6-7 kilowatts. This is enough to normally withstand the work of energy-intensive technology: microwave oven, washing machines and heaters. “.

In addition, according to the Decree of the State Construction of Russia of September 27, 2003, 70 “On the approval of the rules and norms of technical operation of the housing stock”, contractors are required annually from October to May to carry out full verification and commissioning of engineering structures, including electrical equipment. In simple words: Electricians of the contracting organization must pass and check for wear and wear all electrical support, wiring, zero wires in each house on their site. After that, the commission accepts work, and a warranty is given to the state of the electric networks in one year, until the next check. However, in reality, they check after the sleeves. It is for this reason that energy is believed, failures arise in the mains, the sections of which are being required.