How to connect a single-phase counter. How to connect a single-phase electric meter correctly. Sequence of actions when connecting a single-phase meter. How not to get a fine.

Installation and connection of any electric meters should be engaged in a power supply organization, but this can be done with their own hands. As a result, controlling bodies will only be checked and seated the connected counter.

1
How to connect a single-phase counter - Preparatory work

Preparatory work is always produced before connecting the electric meter. You need to install boxing in which the equipment will be mounted. Most modern meters are modular. They are installed on a special mounting rail, which makes it possible to significantly relieve and simplify the installation process. All household protective equipment is also modular, it is:

Protective shutdown devices.
Zero tires and transient terminals.
Voltage indicators.
Circuit breakers.
Differential automata.
Voltage limiters.

All of the above equipment is installed in special boxes made of non-combustible plastics. They can be embedded or mounted, have any dimensions, depending on the number of installation places.

The block consists of such parts:

The outer part is protected by a lid with the door.
The inner part - consists of one or more plates, depending on the number of installation positions.

Installation of boxing

Before installing the box, you need to remove the top cover. Unscrew the 4 screws holding the lid. Install boxing on the wall. Note, according to PUE requirements, the installation height of the electrical meter in the room must comply with the standards received from 0.8 to 1.7 meters above the floor. This is done in order for the seal or controller to have the opportunity to take the counter readings without using a stepladder and stools. The optimal height is at the eye level. You can use a tapping screw or a dowel on concrete.

2
How to connect a single-phase counter - connecting methods

Single-phase electric meters can be connected in two ways:

Direct connection. The counter is turned on immediately into the direct chain. Most single-phase meters are connected in this way.
Transformer connection. Special transformers are used to connect the counter. This method is distributed in industry in high-load power grids.

3
Connecting a single-phase meter

There is nothing complicated in connecting a single-phase meter. Before installing, be sure to learn the instructions and documentation on the counter. To connect a single-phase counter, a scheme that can be found almost everywhere is useful:

In the documentation (instruction and passport), where the characteristics are indicated, the release date is and of course the scheme.
Manual. It also always indicates the scheme.
Look at the opposite side of the terminal cover. In any meter, there are a connection scheme.
The scheme can be found on the Internet.

In a simple single-phase meter on the terminal box there are 4 contacts.

terminal - input of the phase to the apartment or house;
terminal - the output of the phase inside the apartment or at home;
terminal - input of zero to the apartment or house;
terminal - zero outlet inside the apartment or at home.

Turn off the switch installed in front of the counter and connect the wires to the wire contacts in the same sequence. If introductory cable You immediately goes to the meter, you will have to turn off the entire line.

4
How to connect a single-phase counter - a sealing seal

If you want to replace the old counter yourself or with a neighbor by an electrician, then be sure to call the network company, HOA, controlling the company and ask what you need to replace the counter. The purpose of your call is to find out who will sill a seal from the old counter.

If you are on your own conversion seal and install a new counter and then call the power grid, then you will have great trouble. Because of the torn seal, you will be accused of theft of electricity and a huge fine will discover.