How correctly and correctly to find a phase and zero electric wire

How to find the phase and zero?

Main parameters for phase detection:

1. When the indicator device is activated. First you need to turn off the electricity in our two cords, then perform a sweep( removes 1-2 cm of insulation).In order to avoid short self-closing, these electrical wires are bred.
2. It is necessary to find the phase cord. To do this, you must turn on the electricity and use your finger to touch the iron part of the handle using the indicator screwdriver. The wire is phased, if a light bulb is lit on the screwdriver, the other cord is zero.

There are also cases where wiring is done using three cords. In order to correctly and accurately understand where to find the grounded wire it is necessary to use this method:

1. A multimeter comes to the rescue. The phase wire is recognized using a probe. This device should be included in the range of unstable voltage over 220 volts.
2. We engage the two terminals of the multimeter, we touch one phase and the other to one of the selected cords. Write down the values ​​that the
3. indicates. When the parallel connection occurs, that is, to phase and zero, this current should be 220 volts. When you touch the phase to the protective transmitter, the voltage will be lower accordingly.

Operating methods so that the meter does not shake

The most common methods of stopping the meter that have been ingrained in the community will be discussed below:

1. Using a screwdriver that spins the numbers shown on the
2. electromechanical drum You can weld a string into the inductor circuit, the difference is the size of the wire. Just use the "Reed switch" with the help of its counter can be stopped with a conventional magnet
3. Change the meter panel to another
4. Remove the pair of teeth of the electromechanical reader
5. using pliers. We build the conductor into the coil circuit. It must be remembered that it must be current
6. It is possible to fasten the screw securing the magnet that is near the disk. Because of this, its work is blunted
7. We lower the number of the coil of our electrical apparatus

Such stop methods have their pluses and minuses. For example, the positive aspects include the instantaneous operation of stopping and unscrewing the device, and negative factors include those factors when the device is on the street, on a high pole and is very well sealed. In this case, all the methods that were discussed above are not suitable.