By repairing or replacing the electricians in the house, you needknow how to connect a switch, and specify the options for the execution of circuits. The latter are designed for a single mode of operation, when a single lamp is used in the luminaire. For complex commutations, first draw a drawing and mark the place of installation of devices, then start to work to avoid mistakes.
To understand how to connect a switch, you need tobeginning of the installation of electrical equipment. When replacing an old analogous contactor, the task is simpler, only before that, the input automaton should be switched off. The process of dismantling the old and installing a new one is carried out in exact accordance with the already available delays.
How to connect the switch, if necessaryto put additional equipment (an outlet or an additional point of light control)? Here, without elementary knowledge of electrical engineering can not do. We need to understand where the "phase" is, and where "zero".
The marking on the wires is necessarily made by allelectricians. If they did not, you will have to do it yourself. It takes a multimeter, confidence in their knowledge and skills to install wires.
How to connect a switch without a screwdriver? We buy a cross, terminal, flat 4 mm. If we are going to carry out the disconnections by the method of twisting, then we need to take the electric nippers.
High-quality installation is performed by self-clampingterminal blocks, on the wires put on the tips. You can buy them in the electric shop. You will need a special crimp, instead of it you can use ordinary pliers, but it will be poor.
Twists are covered with electrical tape or heat shrinkage,which are also available in the shops of electricians. There you will be prompted how to connect the switch. You can even ask to draw a diagram. However, with uncertainty in their abilities it is better to turn to professional installers.
How to connect the wires to the switch, you canlook at the already established one. It is enough just to remove the top cover and measure the voltage relative to ground contact, on one of the wires there will be potential - this is the "phase". But it is worth remembering: electricians can supply 2 wires of "zero".
To determine an automaton or a fuse,turn on the light and one by one "flip" until it goes out. If this is a new installation, then the procedure is carried out until the phase voltage is lost. When it is possible to disconnect the entire power supply, it is possible not to complicate the process and do this.
To accidentally someone did not turn on the light, byeinstallation works are carried out, it is necessary to hang the forbidding poster on the feeding automaton. Dangerous as an electric shock, and the fact that after a stroke a person can fall and get injured (head, trunk). A simple procedure for replacing the circuit breaker without observing safety precautions will turn into a long sick leave.
To install the switch correctly, you should buy:
The switch is mounted in a niche.For outdoor installation, it must have a closed housing made of non-conductive material. Such models are sold in finished version. Under the feet of a person there should be no metal stage to exclude electric shock from poor-quality installation of the switch. This issue is most relevant in industrial premises.
It is important not only to know how to properly connectswitch, but also provide for mounting errors. Never use ground instead of zero wire. The lamp will burn, but this will lead to a skew of the total load of the whole house. Then, when there are too many such connections, the electricians of the servicing company get tired of looking for the cause of the constantly knocking out introductory machine.
It is not recommended to make bolted connectionswires in an inaccessible place. After a year or two such contacts should be stretched. Leave the bare sections of wires can only pre-insulated them. Twists are also subject to propaque and insulation. The remaining parts of the metal may close in the future.
It is not recommended to work when not removedvoltage. You can not leave the wires during the repair open for a day or more, connect power equipment from the wire that does not belong to the lighting, take power past the circuit breaker.
Single switch is connected to the breakfeeder wires. But there are complex contactors, designed for inclusion in one place, and off in another. This is very convenient when lighting corridors, stairs, storage areas, where there are several exits.
Let's see how to connect the pass button.The picture shows the wiring diagram, where it is visible - the contact can be switched off and switched on from either side. At any positions, the light is controlled by one switch. Going up to the stairs, a man lights a lamp and, having risen, extinguishes it already upstairs. Another can already illuminate the room from above, though from below.
Advantage of the circuit for the bypass switchis easy to install. But you need extra cable meters, compared to a single switch. The lamp can be one, right above the stairs. Recently, automatic switches have been installed, but the power button is also required. 2. An analogue is the motion sensor, which works when any object approaches it.
Sometimes there are problems in the question, howconnect two switches. After all, only one wire is used in the gap. When a chandelier with several lamps is used, its zero wires are combined inside the plafond into one neutral one. The phases are divided and go through contactors.
But how to connect a double switch, if we havetwo incoming wires? The phase clings into one contact and from here one end of the jumper is taken. The second is placed on the next key. The neutral output, as a rule, is one for both keys, the contact isolation is made inside the plastic case.
Be sure to determine the phase conductorbefore connecting. This can be done with the help of an indicator screwdriver. The LED is on, there is voltage. Often the screwdriver shows and on the second the presence of potential, but the diode already burns weaker. This is the cause of incorrect wiring in the electrical panel.
To understand it was easier with the question, howconnect a two-button switch, the standard wire color is used: red - phase, black - neutral. However, in each room the marking may differ. When connecting the lamp holder, the supply conductor must go in the center.
The lead to the switch should be thickerthose that connect to the cartridges. In the chandelier, the conductors are used even thinner, so the uniformity of the potentials is preserved. When using energy-saving lamps, it is recommended to separate the outlets and switches with fuses.
The same rule applies when installing LEDlamps. Often switches use LEDs. They are not always correctly working fluorescent lamps, they begin to blink. It is better to remove the photodiode circuit.
Clamp the wire on a length of more than 5 mm.A short one can fall out of the switch with time or with another disassembly. The thickness of the wire is selected according to the design load. Otherwise, the wiring will warm up and serve for a short time.
