How to accept wiring repair work correctly? It is necessary to check that the installation and location of the junction boxes correspond to the original plan.. It is necessary to check the quality of the cable attachment. In no case should the cable laid in the grooves protrude above the wall surface. If the cable does protrude above the wall, it will interfere with the finishing work. In this case, the installation will have to be redone..
If the cable is installed in an open way, for shelter then under the casing, then it should be fixed with special dowels, and not with anything. The basic rule for cable installation is no diagonals, only vertical or horizontal (except for a suspended ceiling). In no case is the crossing of electric wires allowed. If a stranded wire is used during installation, then its ends, prior to installation, are either soldered or terminated using special ferrules. If, during the discussion of these issues with the repairmen, they begin to object, then most likely you are dealing with unscrupulous performers. Better not to deal with them and find others.
After installing electrical equipment (switches, sockets, etc.), the holders of all switches and sockets should be flush with the wall. To check it is worth, if possible, turn on all switches and turn on all sockets at the same time. If the installers made a wrong connection somewhere, something will definitely not work. On — turn off all circuit breakers to check if the wiring is correct. Ask the electricians for a plan — a diagram of the breakdown of machines along lines (which goes to the kitchen, which to the hall, etc.).
Final control after installation of front panels of electrical fittings and decorative frames. The frames should fit perfectly to the wall without gaps. The actuation of the keys on the switches must be clear and do not require any effort. If the key sinks or, on the contrary, sticks, this is a sign of either poor-quality installation or a defective switch. If the key has to be pressed in to operate, it means that the mechanism is too deep in the wall and there is a large gap between it and the key. This is a rather gross mistake by electricians. Do not hesitate to demand the correction of such imperfections before the final payment for the work, otherwise you will have to correct someone else’s marriage on your own..
Installation and connection of electrical outlets and light switches.
Electrical sockets and light switches are wiring accessories and are connected to the network with wiring wires using mounting terminals. The wires are pre-prepared. The ends of solid wires must be pre-stripped. And the ends of stranded wires are stripped and terminated with ferrules.
Switches
Switches are mounted in the breaks of the phase line, wires leading to the lamp holder. Such a scheme allows, in the event of a short circuit, to quickly turn off the current supply and thereby ensure safety during the repair of the luminaire or the replacement of a failed lamp. The switch on the wall should be positioned so that the lighting is switched on by pressing the upper part of the button, and switching off, respectively, at the bottom. In height, the switches are set at a level of about a meter from the floor, so that their use would not cause difficulties for children.
Electrical outlets
The sockets are connected to the mains wires in a parallel circuit. The battery from multiple sockets is installed in junction boxes located in a line, next to each other. The sockets are connected to each other using special clamps and aligned along the horizontal axis. If, during the installation of the sockets, their mismatch relative to the horizontal axis is allowed or the same distances between them are not maintained, it will become impossible to combine them in the future into a single block and close them with a decorative frame.
Wires
After completing the installation of the switch or socket, the wires are neatly placed in the back box. Both switches and sockets are fastened inside the installation box using an installation mechanism with two screws. This operation is performed with the front panel of the switch (socket) removed. You can fix the mechanical part and sockets and switches using special fastening lugs. To do this, before installation, unscrew the adjusting screws so that the housing of the socket or switch fits freely into the installation box. After installation, the adjusting screws are tightened until the case is completely seated in the box. After that, put on the front panel and cover everything with a decorative frame. As you can see, it is not so difficult to install switches and sockets on your own. It is even easier to replace existing products with newer ones.