The presence of circuit breakers on individual lines allows you to quickly find a short tripped the fuse. If the apartment is not provided selective protection, which will require additional time to explore the boxes, and joints. Before starting work you should turn off both the circuit breaker that feeds the apartment.

The opening junction boxes

Scheme raskrucheny the wiring in the apartment may be different, however all of the cables converge at one or more junction boxes. They are located at the level of 10-30 cm from a ceiling and can often be seen protruding caps. If the boxes were bricked up in the wall, you can find them tapping on the surface with the handle of a screwdriver. Where the sound of the kick becomes muffled, most likely, there is a cavity in the wall in which the box is mounted.

You first need to find the connection of the lines feeding the outlet. Typically, the two strands with the greatest number of wires thicker section. Single connection characteristic of the phase wires of the line lighting and reverse switch wires. The outlet lines need to be separated and raise the ends to the sides. The cable feeding the box, usually moving away from her towards the front door. Paired the ends of the wires you need to check for a short, pre-disconnect from the outlet appliances. In the same way, you should check the line of lights and switches, beforehand Razumkov circuit and unscrewing the bulb from its socket.

If the circuit has not been found, we need to establish the exact correspondence between the wires in the box and consumers to which they were attached. For this purpose, the probes are attached to the contact sockets or lighting cartridge and alternately close the wires in the box before the appearance of the signal chain. If a short circuit lived, the cable may burn out completely, so it will not respond to the circuit. Also the problem can be hidden in the wire feeding the box.

The elimination of short circuit

When the problem line is found, you must first open the socket or lighting socket and make a visual inspection of the ground contact joints for signs of soot, reflow or wire break. If the problem is not fixed, need to check the cable from the outlet to the presence of a contact between two conductors. Happens to a lot of damage to the wire buried in the wall. In this case, will require the installation of a new cable.

For supply voltages on healthy lines, disconnect the shorted area in the junction box. This is followed by the Assembly of the twisting or terminal connections and check for a short circuit without connecting consumers to the network. If the line is working, it is possible to apply the voltage to the apartment.