Lamp holder: rules for connecting products, how to change a product in a chandelier

An electric bulb holder is a device that is a connection point between a luminaire and an incandescent element. In addition, with the help of additional fasteners, a lampshade or shades are hung. Through such a part, current is transmitted through the wires. The screwed-in burnt-out element is easy to change due to the simplicity of the product body.

Product marking

Depending on the diameter of the threaded part of the assembly, the products have several varieties:

1. Cartridge E14. The product is called a minion. The diameter of the screwed part is 14 m. It is used not only in chandeliers, but also in microwave ovens or refrigerators.
2. E27. The classic and most common chandelier holder. Fits in most luminaires.
3. E40. These are large incandescent bulbs. They are needed for street lighting.
4. Bayonet element. It has no thread, but is fixed in a special way. The reason is that it is resistant to strong vibrations. It illuminates transport where the threaded connection is not applicable.
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Electrical socket connection

To understand how to connect a bulb holder, you need to have a good understanding of its device. The central contact is made of brass. It is pressed against the ceramic insert. For this, there is a threaded steel plate on the back. A screw is screwed into it, which passes through the ceramic and brass.

The screw is screwed in with good effort, because an electric current passes through the part to the contact. A side brass plate is placed next to it, which is attached according to the same principle.

When the wires are connected, rings for fasteners are formed on them. They pass through its central hole in the body and are fixed on steel plates. The phase from the network is fed to the central contact.

After that, a threaded sleeve for a light bulb is screwed on top. Then the lamp is selected.

Fixing the product

Typically, the holder is mounted in chandeliers or lamps behind the bottom of the case. It is unacceptable to give a weight load to the wires. For fixing, there is a hole in the bottom of the chandelier, into which a plastic sleeve is inserted. The wiring is launched into it and is fixed with a bolt. A more secure mount is a metal tube. Wires are passed through it. The nuts located on it allow you to install the shades and caps of the chandelier.

Special sockets are available for installing lamp shades or wall luminaires. From the outside, they have a thread cut. Clamping of the hinged elements is carried out using plastic sleeves, which are screwed onto the threaded part of the chuck.

It should be remembered that you cannot install a high-intensity light bulb, because the plastic washers begin to melt.

Reasons for replacing the design

Over time, the product needs to be replaced. The need arises for the following reasons:

1. During switching on, the light does not light up. The main reason is that rust forms on the contacts. As a rule, cleaning them does not give positive results. Product replacement required.
2. If visual damage is found on the body, then further operation of the structure is impossible. Dust, which is conductive, will clog in the gap. A short circuit may occur.
3. When contacting internal wires.
4. If the lamp base is soldered to the sleeve. This makes it difficult to remove the cartridge. Often such attempts end in the destruction of the structure.
5. During scheduled repairs, which should take place at intervals of 5 years.

Preliminary Tips

Before changing the cartridge, there are some tips to consider:

1. Make sure the wiring is de-energized.
2. You should know that the phase is connected to the center contact. By screwing in an energized light bulb, the risk of electric shock is eliminated.
3. If the system wiring is damaged, it needs to be replaced.
4. In the case of joining wires made of different materials, for example, copper and aluminum, they must be well insulated.
5. The work is carried out only in case of complete confidence in a positive result.

Dismantling and installation work

Armed with the necessary tools, you can start dismantling the old structure and installing a new product.. The step-by-step instructions are as follows:

1. After the system is de-energized, the fasteners holding the chandelier are unscrewed. The item hanging on the hook can be removed.
2. Using a screwdriver, unscrew the bolts holding the wires in the terminals. Then they are pulled out.
3. The luminaire is placed on the table and the cartridge is removed from it. There are several options for attaching it to the chandelier.
4. A new cartridge is inserted into the resulting hole.
5. The wires protruding from the ceiling are carefully stripped.
6. The chandelier returns to its place. The wires are pulled through its hole.
7. Electrical conductors are inserted into the terminals and tightened with bolts. The cartridge is connected.
8. The chandelier is finally reinforced with old fasteners.

Voltage is applied to the mains, and the device turns on. If the work is done correctly, the light should come on.

An electric socket is a product that is present in any luminaire. Over time, the structure breaks down. This could be due to the presence of rust or a crack in the housing. The main thing, notice it in time and carry out work to replace it.

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