How to install an electricity meter: the meter installation certificate

Type of certificate

To date, an electrical appliance for measuring consumed electricity can not be installed without supporting documentation, moreover, the act of installing an electricity meter is mandatory. This act is signed by two copies and regulates the standards and rules for installing general house electric meters. To make it a little more understandable, it's worth talking about the components of this act.

Example of the act on the next photo.

So what does a document that serves as a confirmation of the lawfulness of the meter?

1. The graph, which we will conditionally call the "installation".In this chapter, the name of the connection( i.e., the feeder) is described where the meter installation took place. It may be some kind of substation( a typical entry in the chapter looks like this about "substation No. 8, page 9").
2. Graph type, serial number, release code and accuracy class. Naturally, here you write to which type the device belongs, its serial number and year of manufacture. In addition, it is necessary to indicate the accuracy of the previous one, and which one you are setting now.
   
   A typical entry for this column is: "Two-phase counter SAZU-IT inductor is removed, No. 19076564, 1956, accuracy class 2.0".
3. State inspection mark. The graph takes into account the date and quarter of the last state audit, which was conducted on an installed meter.
4. Information from the meter. Indications of active and reactive energy are written off from both counters, and are entered into the installation certificate. Typical entry:
   «SAZU-IT - 765.56( kWh)
   SET-5TM.09M.03 - 0.00( kWh), 0.00( kWh)».
5. Calculation coefficients.
   For example, the meter is installed by means of two current transformers, in which the coefficient Km = 500/6 and the voltage transformer NTMI-10 with the coefficient Ktn = 11000/100.The coefficient is equal to multiplying the first by the second. And all the indications are multiplied by this coefficient.
6. The energy that is not counted.
   During the replacement of the device, some amount of energy was not taken into account in the billing period, this is the place to fill this data.
7. The reason why you decided to replace the electricity meter. For example, it may be excision of the service life of the previous device, a poor level of accuracy, etc.

At the end of the document filling the certificate of the meter installation, it is necessary to indicate which terminals are on the meter. Then we seal the packaging with a record of the place of sealing, the number of the seal, the name of the organization.

Installation of the

Next, we will discuss in more detail some of the rules for installing an electric meter.

1. Desktop document for the installation of a new device, shows the PUE "Rules for the installation of electrical installations."And this is the only correct rules for installing electricity meters.
2. Determination of the period of the last state inspection of the device in a private house or apartment. The date of verification is indicated on the seal of the counter. The impression of the date is in the form of Roman numerals denoting the quarter and year of verification.
   Three-phase meter prescription verification - must have a prescription period of no more than one year, and single phase - no more than 2 years.



3. Installation. Connection of an electricity meter in a private house is made at an altitude of 1-1.7 meters from the floor and it is often customary to put it at eye level for the convenience of taking readings.
4. Operation of the electrical board. According to the rules, permits, the work of the electrical board should not be blocked by all kinds of flaps, niches, cabinets, etc. A simple and convenient access to the meter - this is almost the pledge of his long work. Set it at an inclination of 1 degree. It is allowed to mount on wooden, metal and plastic shields.



5. Fill in the act of installing an electricity meter, how to do it, you already know.
6. The switching device can be installed at a distance of up to 10 meters, and operate the fuse and meter with it. The voltage is then removed from all phases of the counter. The only discomfort in this kind of management are the errors of power supply organizations, in which your meter may look like a stolen one.

We wish you good luck in operation, be vigilant and pay for utilities in time!