Billboard switch: self-assembly

For commutation of various types of load, starters, switches, switches are used. These are electrical products that have certain parameters, characteristics, features. If you install it yourself, you need to make sure that the type of appliance you are using corresponds to the consumption parameters. Otherwise, overheating of the switching equipment and, as a result, a fire can occur.

Purpose of the switch

The electric bill on the switch is designed to connect devices that use electric current to the power source. Usually this is a simple switching equipment that, when switched on, closes or opens the mechanical contacts, supplying or removing the voltage from the device.

The bill on the waybill differs in the way of installation. It is installed outside the surface.

Types of switches

The industry produces many varieties of switches:

• External or invoices;
• Internal or embedded.

By type of switching they are:

• Keyboards;
• Sensory;
• Rope;
• Wireless and others.

According to the principle of work:

• Termination switch;
• Pass-through switch of waybill.

Installation Methods

Depending on the method of installation, the switches are internal and external.

Internal requires preparation of the installation site. In the wall it is necessary to drill out or use a different method to prepare a hole. In it, immobilize the dielectric box, into which the internal switch will be subsequently installed.

For external training is not needed. This method of installation implies the installation of the surface-mounted circuit breaker directly on the surface.

To perform the work you need tools:

• Knife;
• Screwdriver flat;
• Phillips screwdriver;
• pliers;
• Nippers;
• Voltage indicator ;
• Electric drill.

Installation of switches

Overhead sockets and switches are installed according to the same principle.

Installation of the overhead circuit breaker must begin with a calculation of the conditions of consumption. The following parameters are taken into account: operating voltage, power consumption of the system, which must be serviced. The power draws the current consumption. If all the parameters of the circuit-breaker are greater than the consumption parameters, it is possible to carry out overhead installation.

Switches are placed on a dielectric gasket installed on the wall surface. In case this device is used on fire-hazardous surfaces (wooden, combustible plastic), this gasket serves as a thermal insulation, preventing ignition when the circuit breaker overheats in case of overload. Its second purpose is to ensure a reliable fastening of the switch to the mounting surface.

If the holes for fastening are provided on the dielectric spacer, this will facilitate the installation. If they are not, then you need to drill a hole of a suitable diameter and fix the switch of the delivery note on the gasket. To do this, disassemble the switch and fix it to the wall with screws or screws.

An example of how the one-key consignment switch is installed is considered. If necessary, you can do the installation of two-, three-key switches in the same way. To do this, the zero conductor is laid directly to the source of consumption. The phase wire is connected to the common bus of the switch. Each output contact is connected to the conductors of consumption (2-3 contacts).

Mounting Features

The installation of overhead switches has its own peculiarities for different types of wire fastening.

If fastening under the screw, it is necessary to remove the insulation by 1-1.5 cm and fix the conductor to its original place with the help of screws. This process can be seen in the figure below. One end of the switch - to the incoming conductor, the other end - to the chandelier, lamp or other consumer electricity.

There are models of switching devices that do not have screw connections for fixing the wires. On the rear panel there are only holes for the insertion of conductors. The order of the work is as follows: clean the conductor by 1 cm and insert it into the hole until it stops. The self-clamping contact must lock the connection automatically and, when trying to remove the conductor, holds it tightly. Do not apply a large force to check the strength of the connection to avoid breakage of the switch. The fastening system has been tested by the manufacturer and is reliable at low current loads. A huge advantage of this connection is the lack of a special tool for connecting and simplicity of work.

Important! For correct installation, it is required to determine the zero conductor and the phase conductor using the instrument. Zero is connected directly to the lighting device, and the phase connection is connected via the switch of the delivery note. Thus, we get: when the switch position is off, there is no voltage on the device, and when the phase is switched on, the phase is switched on.

Safety during installation

It is not recommended to carry out the installation of lighting fixtures without de-energizing, because there is a risk of electric shock. Therefore, the installation must be carried out by a specialist with an appropriate tolerance group for operation in electrical installations.

If the work is done on its own, then the following safety measures should be taken into account:

• Turn off the supply voltage;
• Check with the aid of the instrument or the indicator that there is no phase at the ends of the conductors;
• Perform work by combining all the links according to a pre-compiled scheme taking into account phase and zero wires;
• To apply the voltage necessarily through the machine with the corresponding operating current;
• Check the operation of the mounted circuit (in case of improperly installed installation, the circuit-breaker will work);
• If the circuit-breaker has tripped, check the correctness of all connections, make an adjustment and again check the operation of the circuit.