How to connect the meter?
Installing an electric meter is not a simple matter. After all, you need to know how to connect an electric meter. The connection of the electric meter in case of its replacement or installation at another place should be made only after coordination of this issue with a representative of the local branch of the power supply company. After you have received permission to install an electric meter, you can safely proceed to self-connection.
How to install an electric meter
When installing the meter in another place for its placement, you need to choose a place that will be available for inspection of the meter and readings from it. Electricity meters should be installed in a dry room in which a constant air temperature will not fall below 0 ° C.
It is allowed to mount the metering device on metal, wooden or plastic panels. As a rule, they are installed on panels or boards, as well as in niches of walls that have a rigid structure. The meter is installed at a height of 1.4-1.8m from the floor so as to enable it to be turned off during an emergency, in case of repair or replacement.All metering devices before installation and start-up are subject to strict inspection and sealing by the authorities of Energonadzor. To connect an electric meter, copper wires with a cross section of at least 2.5 mm2 are most often used, or aluminum wires with a cross section of at least 4 mm2 can be used.
Electric meter connection
Electric meter connection diagram:
Work on connecting the meter begins with its installation on the apartment panel and its secure fixing there, with the help of screw fastening. The deviation of the device from the vertical position should not be higher than 1 °. After that, it is necessary to throw a jumper on the input contact from its phase contact automat. the switch, with the help of which your electric stove will be powered.
If you do not have a stove, then connect this jumper to the closest of the switchgear installed on the dashboard. To the input contact of the meter itself, as a rule, the phase is supplied with a wire with insulation of red or white color.
In this case, it is necessary to take into account the fact that the installation of wires by the rules of electrical installation is allowed only in the horizontal and vertical direction.One end of the conductor in red or brown insulation is mounted on the contact of the meter, and the other is mounted on the terminal of the middle circuit breaker. The corresponding contacts of all the closest protective automatic devices are connected with U-shaped jumpers made of wires of the same color, and then carefully tightened.
For wiring "earthen" (zero) cores are usually used wire in blue insulation. Next you need (according to the instructions to the electric meter) to find on it the output "zero" contact, lay a piece of wire with blue insulation from it to the common "zero" bus, and then carefully fasten it from two ends.
In case the body of the electric board is made of steel, it must be earthed with the help of a special grounding conductor, which is connected to the ground loop and connected with a free edge to the zero-bus contact plate.
Now you know perfectly well how to connect the meter correctly. The main thing in this difficult task is to do everything exactly and slowly. More precise instructions for connecting the meter can also be found on the Internet. We hope you can figure this out.But if you suddenly did not understand everything, then it is better to use the services of specialists.