In every house there are household appliances and lighting system installed. To ensure its performance monthly user consumes a small amount of electricity, accounting which are special devices - counters. It is important that the installed equipment meets the requirements of the consumer. And for this it is important to know what electricity meter better to put in the apartment and what characteristics it should have. We offer to deal with this issue in more detail.
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- 1 Scope meter for electricity
- 2 Types of electricity meters for the apartments by type
- 2.1 Electronic electricity meters
- 2.2 Induction electricity meters
- 3 Advantages and disadvantages of different designs of electric meters
- 4 What is the electricity meter is better to put in the apartment: the selection rules
- 4.1 How to choose the electric meter for an apartment on the number of phases
- 4.2 Which accuracy class should be at the meter
- 4.3 What to put on the counter by the number of electricity tariffs
- 4.4 Types of electric power meters on the current strength
- 5 442 resolution requirements of electricity meters replacing
- 5.1 The operating life of the electricity meter in the apartment
- 5.2 Documents List to replace the electricity meter
- 6 Economic aspects of electricity
- 6.1 How much is the electric meter
- 6.2 How much is the installation of the meter in the apartment?
- 6.3 How much is the replacement of the meter in the apartment?
Scope meter for electricity
Meters for demand in residential buildings and industrial plants, where there is a lighting system and / or equipment operating from the mains. With controlled Counters specific power consumption by the consumer. Manufacturers offer counters for single- and three-phase networks, which enables you to record one or several rates.
Warning! Timely tracking the counter, you can optimize your energy costs.
Types of electricity meters for the apartments by type
Figuring out how best to put the electric meter in a private home or apartment, it is necessary to get acquainted with the main types. Manufacturers offer electronic and induction models, which differ in design and principle of operation. We offer to meet with every kind individually, to make it easier to make a choice in favor of a certain type.
Electronic electricity meters
Compact devices, which work control various circuits. The structure design includes electronic components, and uses special methods of information processing. Data sent by the current sensor and the voltage fed to the transducer which encodes information and outputs the score for the user in a suitable form.
single-phase electric meters can be placed in the apartment. However, due to the possibility of active and reactive power manufacturers offer three-phase model.
Electronic electricity meters demand where possible a differentiated calculation of the consumption of electricity. Manufacturers offer two- and multi-tariff model.
Induction electricity meters
Such devices are equipped with two coils, initiating the formation of the electromagnetic field. Under the influence of magnetic flux aluminum disc begins to move, causing the movement of figures on a mechanical scoreboard. The greater energy consumption by a consumer, the more rapidly changing counter value for induction of electric power.
Advantages and disadvantages of different designs of electric meters
Electronic meters have a complex design concept. In operation, they convert the incoming signal to the data shown in digital format that are displayed on the display. Single-phase electricity meters are relevant for apartments located in apartment buildings.
For such electric power meters for the apartment is characterized by a number of advantages:
- Small measurement error.
- Possibility of separating the indications for several rates.
- Minimum percentage of theft.
- Extensive functionality. Some models come with a remote control, built-in clock and increased memory.
The disadvantages include:
- Sensitivity to voltage surges.
- The high cost and the cost of repair work.
- The lower reliability as compared with counters of another type.
Induction meters for apartments is still in demand, but the demand for them decreases gradually. Their main advantages are:
- Reliable operation. Induction counters rarely fail;
- Long service life.
- Stability at significant changes in the voltage in the network, which is connected to the apartment.
- Availability.
The disadvantages include a large error, a high probability of theft of electricity.
What is the electricity meter is better to put in the apartment: the selection rules
Today, manufacturers offer a wide range of meters for apartments, each of which has its own characteristics and advantages. At the same time, few people know how to choose the electricity meter for the apartment, that he meets the legal requirements. We offer to meet the basic criteria and rules select suitable device.
How to choose the electric meter for an apartment on the number of phases
Manufacturers offer single and three-phase meters. When deciding which vybratelektroschetchik should take into account the place of the future installation. The flat, as voltage feed 220 typically installed in single phase at a maximum load of 10 kW. That is why in apartments, country houses and in private homes often set a single-phase device. If the house is connected to the three-phase network with a voltage supply of 380 V, the choice is made in favor of a three-phase model.
Which accuracy class should be at the meter
measurement error is any metering device. This necessarily affects the accuracy of readings. As a consequence, the same number of kilowatts consumed electricity readings may differ if they belong to different classes. The deviation from the real values of a few percent.
In everyday use equipment installed in the apartments, the average deviation of 2%. This means that if the user had consumed 100 kW, the scoreboard counter value is displayed from 98 to 102 kW.
Attention! When choosing a device metering of electricity, be aware that the lower the grade, the greater the deviation.
Class accuracy of the instrument is located on the front panel in a circle. Its value is the measurement error. Besides Class 2 devices accuracy, allowable installation devices having an accuracy of 1; 0.7 or 0.5. However, their purchase will cost much more.
What to put on the counter by the number of electricity tariffs
Modern models allow us to pay for electricity at different rates. They may be:
- one tariff, Allow for the payment of a single tariff for any time of day. All models are induction-rate;
- dual-rate. The cost depends on the time of day. The single-phase two-tariff meter to optimize costs. Rate T1 is set for electricity consumed from 7 to 23 hours, T2 - from 23 to 7-00;
- multirate. Such devices may be three or more tariff. Night corresponding time from 23 to 7-00, the peak attributable to the maximum loading of the network with 7 to 9 and from 17 to 20 hours, and the half-peak attributable to the remaining time.
Types of electric power meters on the current strength
Each metering device is designed for a certain nominal current. For single-phase model, this value is in the range 5 ÷ 80 A, three-phase - 50 ÷ 100 A. This range is arbitrary and depends on the particular model.
Attention! The magnitude of the transmitted power has a direct impact on the cost of the meter. Purchase for the apartment model for a significant margin to the rated current is inappropriate.
When selecting a device to be guided by the characteristics of the cable used for power supply to the apartment. Exceed the strength of the current, which is designed cable does not make sense.
Related article:
Electric, transmitting readings. In the paper, we consider what is needed such counters, what are their advantages and disadvantages, the device, the operating principle, as well as an overview of popular models and manufacturers, the recommendations of experts.
442 resolution requirements of electricity meters replacing
Resolution 442 aimed at strengthening control over the sale of electricity market. The document increases the demands on the accuracy class of metering devices used in apartments and private homes of citizens of the Russian Federation.
Attention! Decision 442 replacing electricity meters cemented requirement to terminate the metering accuracy class lower than the second, as well as their repair.
Ustanovlenadlitelnost mezhproverochnogo interval equal to six years. If the accounting unit does not meet certain requirements, after the first verification will be made an order for a replacement.
These regulations are aimed at increasing the level of safety in electricity consumption. In this case, replacement of counters should be done at the expense of the consumer. Such a requirement is established in article 221. In some cases, the substitution can be made at the expense of the municipal service, which is worth to learn from representatives of the organization and sales.
The operating life of the electricity meter in the apartment
Operational life is reflected in the data sheet of a particular device. In compliance with the manufacturer's recommendations and correct setting of any counter will correctly calculate the amount of electricity consumed. That is why throughout the life of the meter in an apartment on the scoreboard reflected the values can be considered definitive.
Modern devices are able to serve 25 ÷ 30 years. The data sheet shows the date of the first verification, which is performed at the factory. The countdown is made to this date. For life after the meter must be replaced.
Routine calibration of the device depends on its accuracy class. If the device is:
- first or second class, Verification is carried out every 16 years. Upon detection of operation disorders or exceeded the error above the standard value equipment must be replaced. After re-examination after 32 years from the beginning of the operation period begins replacing the electricity meter in the apartment;
- 2,5 accuracy class. Replacement is done after the short calibration.
Documents List to replace the electricity meter
The procedure for replacing metering device in an apartment building comprises the following steps:
- submission of an application to the organization of distribution and sales;
- preparation of the necessary documents;
- act of drawing;
- calibration of the meter;
- sealing counter with drawing appropriate act.
Tip! The preparation of documents should follow the recommendations of the relevant regulations.
The statement should bring the following information:
- the date and place where the document is issued;
- name and contact information of the applicant;
- the address to which the account is the instrument;
- requirements for the type and characteristics of the new electricity meter. If the house is supplied with the voltage of 380 V, require three-phase two-tariff counter, permitting consideration of kilowatts consumed two rates;
- number and date of conclusion of the contract power.
How to change the electricity meter in the apartment? To provide a standard set of documents, which includes:
- a document confirming the identity of the owner of the apartment.
- If the application performs other person, together with proof of identity is provided power of attorney executed by all the rules;
- passport, which recorded information about the place of registration.
The resulting documents are analyzed and sales representatives. If a positive decision shall be made, when the counters will be installed Electricity in the apartment, composed replace an act which will have to sign a performer and the applicant. It provides:
- the address to which the replacement of metering device to be produced;
- installation location;
- Technical characteristics of the counter which is to be replaced (type, number, date of manufacture, the current indication);
- Technical characteristics of the new counter;
- installation date;
- the organization and sales information, which employees made a substitution.
Economic aspects of electricity
For those who decide what is best for the electricity meter apartment, the price of a particular model may not be the main criterion in the selection process. The cost depends on the desired characteristics and design features. How much is the electric meter will be available, will be available at registration of the application in the organization of distribution and sales. We offer to know the average prices so that you can prepare for future expenses.
How much is the electric meter
The cost model is capable of becoming the main criterion when choosing a metering device. A wide range allows you to choose the appropriate option for families of all income levels. How much is the electricity meter? You can find out the average cost in the following table:
| Model | counter characteristics | Average price, RR. |
 | Multirate, Grade 1 | 1 800 |
 | One tariff, Grade 1 | 800 |
 | Two-tariff, Grade 1 | 8 050 |
 | One tariff, three-phase | 4 800 |
 | single-phase | 1 050 |
How much is the installation of the meter in the apartment?
Installation of metering equipment must be performed by a qualified organization and sales or a specialized company providing services of this kind. Only in this way can guarantee the stability of the device operation and the accuracy of the displayed information. Of course, for this service have to pay separately. Many subscribers care how much it cost to install the meter in the apartment? Perhaps, for the installation have to pay more than the metering device itself?
In fact, the cost depends on the characteristics of the selected equipment and on the services which the company decided to take advantage of a user:
| The connected equipment and the type of work | Average price, RR. |
| The single-phase model | 2 000 |
| A three-phase model | 3 000 |
| Connecting transformer | From 6000 |
Attention! Some companies set a separate price for the installation of electricity meter a particular model.
How much is the replacement of the meter in the apartment?
If the distribution and sales organization issued an instruction to replace the metering device, the consumer is obliged to do so in the shortest possible time. How much is the replacement of the meter in the apartment? Depending on the instrument model. In this case the dismantling of the old meter and then installing a new one. For the replacement of single-phase meter will have to pay 2,000 rubles, three-phase - 3500 rubles.
After analyzing the above information, everyone is able to decide which is better to put the electric meter in the apartment. Each type has its own advantages and disadvantages. Share in the comments what device metering of electricity you use at home, and how satisfied its functionality.