How to change a chandelier cartridge: step by step instructions. Electric cartridge types, device, connection and repair How to remove a cartridge from an e14 chandelier

The question of how to unscrew a light bulb seems ridiculous and banal to many. Indeed, there are many different solutions. However, situations often arise when burned out light sources are in no hurry to leave their place in the lamp.

As a result of a voltage surge or a short circuit of the spiral, the bulb base (the metal element of the lamp designed to twist it) can be welded to the cartridge and, with excessive force applied, the glass bulb can break off from the rest of the lamp.

The worst option is if you find yourself with a problem one on one, the bulb crashed unevenly, there were protruding fragments in the base, the lamp is in the lamp under the ceiling, which is quite difficult to remove, and the whole room was left in the dark. In this case, you should not panic either, your accuracy and following the correct procedure for further actions is important.

How to unscrew the base if the light bulb is broken

Greetings to all friends on the Electrician in the House website. I was prompted to write another article on lighting by a girl who had problems with lighting in her apartment. The crux of the problem was "exploding light bulbs". More precisely, incandescent bulbs often burst in the chandelier in the kitchen, and everything would be fine, if not for one thing.

Unscrew the damaged light bulb from the socket chandeliers, and even with protruding fragments, as you understand, are problematic, especially for a girl. And to deal with the problem, she sometimes had to call an electrician. This girl came with advice on what to do in such a case and how to remove the remains of an exploding light bulb.

To be honest, I never thought before that people could have such problems. But as it turned out in life, this is not so, and for many people ignorant of electricity, it is not easy in such simple situations. Let's look at what are the ways to deal with the problem of a base stuck in a cartridge, I think it will be interesting not only for beginners.

Even knowing how to unscrew the base if the light bulb is broken, you need to correctly assess the current situation. When lamps explode in their socket or are broken accidentally, their conductive parts may remain energized. Also, sharp edges of glass often remain on the broken part. It is clear that you should not climb there with your bare hands, and rubber gloves are easy to cut through.

It is good when the room is powered in the electrical panel from several machines. In this case, we turn off only the machine from which the lamp (chandelier) with the damaged lamp is powered.

If the room is dark, having an electric carrier and a table lamp, it is easy to build yourself a backlight using a nearby outlet from another line. If this is not possible, use a flashlight or backlight on your mobile phone.

Do not forget that during operation the light bulbs themselves and their bases get very hot. It is better to wait a few minutes and let the lamp cool down well. During this time, you can take care of possible fragments that, when removing the base, will begin to pour onto the floor. At the place of their planned fall, you need to spread a rag or film (in extreme cases, use a bucket or basin). Also prepare the devices necessary for further actions.

There are several ways removing the base remaining in the cartridge Let's take a look at the most common ones.

Method # 1 - pliers or thin-nosed pliers

To solve the problem, we use thin-nosed pliers or pliers. Who does not know what thin-nosed pliers are - these are miniature pliers with elongated and thinner lips. They make it easier to capture small details. It is better to use a tool with insulating handles.

First you need to carefully tear off the remaining fragments of the lamp bulb from the base. Try not to let them fall on the floor.

Next, the base is gently grabbed by the edge with the selected tool and twisted outward. The main thing here is not to damage the circumference of the cartridge. But if you do everything carefully, there will be no problems. When the base does not move, you can try to bend its sides inward and only then try to unscrew it.

There was one case in my practice, in one person in the evening broken light bulb in a three-arm chandelier. He decided to remove the base to screw in a new light bulb. In order to make it brighter, this "professor" thought of turning on the light on the lamps remaining in the work and climbed with pliers to the cartridge. He was so twitchy, ... therefore, before unscrewing the base of the light bulb from the cartridge, DISCONNECT THE VOLTAGE.

Method # 2 - plastic bottle

Another life hack that will help us deal with broken light bulb regular plastic bottle. Its neck fits perfectly into the base.

In order to unscrew a broken light bulb, you need to slightly melt the neck of the bottle with matches or a lighter, put it in the remaining base and wait a while.

After the plastic has hardened and soldered to the base, begin to unscrew the resulting structure. It takes about 10-15 seconds to melt and solidify the plastic.

Method # 3 - unscrew the cartridge

Another convenient way is to disassemble the cartridge itself. But I want to note that with ceramic cartridges that are installed in most modern lamps and chandeliers, this method will not work.

This procedure can be performed only with carbolite cartridges of the old (Soviet) type. The difference between carbolite and ceramic cartridges is that the first one is collapsible.

The carbolite cartridge is disassembled into three main parts: two carbolite halves having a threaded connection between themselves and a ceramic core on which brass terminals (contacts) are attached.

In one of the halves of the cartridge there is a metal sleeve in the form of a thread for screwing in the lamp base. If this half is unscrewed from the base, then the base of the broken lamp will remain in it.

Method # 4 - use a cork

Next method if it burst, is to use a cork. We take a cork stopper, sharpen a little around the edges and insert it into a protruding base. Then we unscrew the cork together with the base.

If the lamp shattered, and fragments of glass remained sticking out in the lamp, you can try to string a soft cork on them so that the fragments are tightly drowned in the crust. Next, the plug with the base carefully begin to turn. This is done before they fall out.

Types, device, connection and repair

- this is an installation electrical product that serves for detachable connection of light bulbs and other artificial light sources to electrical wiring.

An electric cartridge is an integral part of any lamp or chandelier and often performs the task of not only transmitting electric current, but also holding a lampshade, ceiling lamp, other aesthetic items and lighting control devices.

Types, marking and technical characteristics
electric chucks

All electric cartridges, according to the principle of operation, are arranged in the same way and differ only in overall dimensions, the material from which they are made and design.

The body of the electric cartridge is usually marked with its technical characteristics. If they are not indicated, then you can find them in the table according to the connecting dimensions of the lamp base.

Table of types of popular electric cartridges
for connecting artificial light sources to the network

According to the method of connecting lamp bases, electric cartridges are produced in two varieties: screw type E series and pin type G series.

Electric threaded lampholders are subject to GOST R IEC 60238-99, according to which there are three types of lampholders for the 220 V network. E14 - in everyday life referred to as a minion, E27 and E40 - for street lamps.

GOST R IEC 60400-99 applies to pin lampholders, which normalizes the technical requirements for lampholders of the type: G4, G5.3, G6.35, G8, GR8, G10, GU10, G10q, GR10q, GX10q, GY10q, G13, G20, GX23, G24, GX24, GY24, G32, GX32, GY32, GX53, 2G7, 2G11, 2G13, Fa6, Fa8 and R17d, designed to work on a 220 V network. It should be noted that in the marking of pin cartridges, the number indicates the distance in the cartridge between contact holes for installing lamp pins.

As you can see, according to GOST, the range of electric cartridges is quite wide, so the table lists only the popular types that are most often installed in chandeliers and lamps for indoor and outdoor lighting.

Types and types of popular electrical cartridges for connecting artificial light sources
Marking	Appearance	Load current, A	Power, no more than, W	Purpose
E14		2	440	Edison round thread cartridge ∅14 mm, which is popularly called "Mignon". Designed for low power LED and incandescent lamps
E27		4	880	Cartridge with Edison round thread ∅27 mm, which until recently was installed in almost all lamps. Currently being superseded by E14
E40		16	3500	Ceramic cartridge with Edison round thread ∅40 mm. Designed for installation in high power outdoor lighting fixtures
G4-G10		5	60	G4, G5.3, G6.35, G8, G10 plug-in sockets are usually installed in luminaires for connecting small-sized low-power halogen and LED lamps. The number after the letter G indicates the distance between the contacts of the cartridge
G9		5	60	The contacts in the G9 cartridge are made in the form of grooves designed for connecting halogen and LED lamps, having a base with flat contacts in the form of a loop
GU10		5	50	The GU10 pin insert chuck is similar in application to the G4-G10 with a pin spacing of 10mm. Its peculiarity is the increased diameter of the pins of the lamp base at the ends, due to which the base is installed in the cartridge with a clockwise rotation and is securely fixed.
G13		4	80	The G13 plug socket is designed for connecting linear fluorescent and LED lamps. Its distinctive feature is the paired application and the need, after installing the lamp in the slot of the cartridge, to turn it around the axis by 90 °
GX23		2	75	GX23 male plug-in socket for connecting U-shaped fluorescent and cylindrical LED lamps
G24		2	75	G24 male plug-in four-pin socket is intended for connection of U-shaped fluorescent and cylindrical LED lamps. The number 24 indicates the distance between opposite pins diagonally
2G7		2	50	The 2G7 male plug-in four-pin socket is designed for connecting U-shaped fluorescent and cylindrical LED lamps
GX53		5	50	The modern GX53 pin chuck is similar in design to the GU10 with a pin spacing of 53mm. Its peculiarity is its small thickness, which is important for the installation of LED lamps in stretch and suspended ceilings.

In the table, the maximum load current and the power of the connected lamps are for reference and depend on the material from which the cartridge is made. For example, ceramic cartridges, unlike plastic ones, can withstand more current and allow more powerful lamps to be connected.

In Chinese chandeliers, there are non-standard electric cartridges E27, designed to screw in two, three or more light bulbs at once.

The cartridge for three light bulbs is arranged, and is connected as follows. There are holes in the contact plates, and you can connect wires to them with M3 screws and nuts, if you have a soldering iron on hand, you can connect the wires to the plates by soldering. The red arrow indicates the plate to which the phase wire must be connected. The neutral wire is connected to the direction of the blue arrow. The dotted blue line shows the connection between the pins. This jumper can be omitted, since the plates will be connected to each other through the base of the screwed-in light bulb, in the photo there is a green line. But then, if the right light bulb is not screwed in, then the supply voltage will not be supplied to the left light bulb either.

The device and principle of operation of the electric cartridge

Let's consider the device of an electric cartridge using the example of widely used Edison E-series threaded cartridges.

The cartridge consists of three main parts. The outer cylindrical body, in which the threaded sleeve with Edison thread is fixed, the bottom and the ceramic insert. To transfer current from suitable conductors to the bulb base, there are 2 brass contacts and threaded mounting strips.

In front of you in the photo is the E27 cartridge, completely disassembled into its component parts.

The photo clearly shows how the brass contacts touch the bulb base. On the right, the photo shows how current is transferred when brass contacts are attached to a ceramic insert.

In ancient times, when payment for electricity was taken for the number of light bulbs and sockets in an apartment, a device was widely used, popularly known as a “swindler”.

An adapter cartridge, which you see in the photo, was screwed into the electric cartridge. On the one hand, it has an external thread like a light bulb, and on the other, an internal thread, like an ordinary cartridge. In this crook two brass tubes were mounted, as in a socket. The crook allowed you to connect any electrical appliances to the chandelier. Such a crook can also be made from an ordinary electric cartridge.

Methods for attaching electric cartridges
in chandeliers and lamps

When replacing or repairing faulty electrical cartridges in chandeliers and lamps, they have to be removed. To do this, you need to know how the cartridge is attached to the base of the chandelier.

The cartridge is fastened in chandeliers and lamps, as a rule, by the bottom. There is a thread in the hole for entering the wire into the cartridge. E14 has M10 × 1. E27 can have one of three: M10x1, M13x1 or M16x1. Luminaires are suspended directly on the electric wire and on a metal tube of any length and shape with a threaded end.

Fixing an electric cartridge in a lamp
for the lead wire

Mounting the cartridge on the current-carrying wire without its additional fastening is not allowed. A plastic sleeve is screwed into the bottom with a hole in the center for the passage of an electric wire, in which a fixing plastic screw is provided.

After connecting the wires to the contacts of the cartridge and assembling it, the wire is clamped with a plastic screw. Often, decorative elements of lamps and parts for attaching the ceiling are also fixed with a sleeve. Thus, the reliability of the connection of the electric cartridge, the suspension of the lamp and the fastening of the ceiling is ensured. Photo report on how I attached the cartridge to the lead wire when making a wall lamp for the hallway. The wire is used special with increased mechanical strength.

Fixing an electric cartridge in a chandelier on a tube

Mounting an electric cartridge on a metal tube is the most common, as it allows you to hang heavy ceiling lamps and gives scope for design imagination. He often screws additional nuts onto the tube and with the help of them, any fittings of chandeliers, decorative caps, and ceiling lamps themselves are attached directly to the tube. The entire load is already carried not by an electric cartridge, but by a metal tube. The wire for connecting the cartridge is passed inside the tube.

There are electric cartridges, which have a thread on the outer part of the cylindrical body, on which you can screw the lampshade ring and use it to fix the ceiling or other design element and the direction of the light flux.

Mounting the electric chuck with a sleeve

In table lamps and wall lights, electrical sockets are often secured with metal or plastic tubular grommets to sheet metal parts. This method of fastening expands the possibilities of luminaire designers, since it is enough to drill a hole in any place of a part made of sheet material and fix the cartridge with a sleeve.

Repeatedly it was necessary to repair lamps with such a fastening of an electric cartridge with plastic bushings due to its deformation. From heating with an incandescent bulb, the plastic was deformed, and the electric cartridge began to hang out.

Replaced the melted metal bushing. I took from a variable resistor type SP1, SP3. They have an M12x1 mounting thread. Please note that the thread may be different. The fact is that the connecting thread of the E27 cartridges is not standardized, and each cartridge manufacturer made the thread at his own discretion. If you decide to use a sleeve from a resistor, then before breaking the resistor, be sure to check whether the thread fits the cartridge. The resistor is completely disassembled and the sleeve is removed from the plastic base.

Fixing an electric cartridge in a chandelier
with screwless terminals

The fastening of an electric cartridge with screwless contact clamps is somewhat different from the traditional fastening due to the fact that the connection of the body with the bottom is carried out using two latches, and not a thread.

First, the bottom is screwed onto the threaded tube in the chandelier, then the wires are threaded into the cartridge, and finally the cylindrical body snaps into the bottom. In the photo, the latches at the bottom are broken off; with such a malfunction, the chandelier came to me for repair. Such a cartridge can be repaired, the repair technology is described in the article below.

Therefore, if you have to change such a cartridge in a chandelier, then in order not to damage the wires, first use a screwdriver to move the latches to the sides, thereby freeing the body from the bottom.

This photo shows a cartridge with screwless terminals installed during the repair of a chandelier to replace a cartridge that failed. In this chandelier, the cartridge also performs a fastening function, fixes a decorative metal cup, to which a glass shade adjoins in the assembled chandelier.

Repair of electric chucks

E series electric chucks can be successfully repaired as they can be disassembled. In the G series cartridges, the parts are connected with rivets and in case of breakage they have to be replaced with new ones.

Repair of a collapsible electric cartridge E27

If the light bulbs often burn out in the lamp or the light bulbs begin to change the brightness of the glow during operation, then one of the reasons, in addition to poor contact in the switch or junction box, is poor contact in the electrical cartridge. Sometimes at the same time, when the lamp is turned on, the cartridge begins to make a specific buzzing sound, in addition, the cartridge may smell badly of burning. It is not difficult to check this. It is enough to unscrew the bulb and look into the socket. If the contacts are blackened, then you need to clean them. The reason for the blackening may also be poor contact at the point where the cartridge is connected to the wires.

For a quality repair of an electric cartridge, you need to completely disassemble it, check the reliability of the wire connection and clean the brass contacts to a shine. Sometimes they need to be slightly bent towards contact with the lamp base.

Sometimes when you try to unscrew the light bulb, its bulb peels off from the base. In this case, you need to try to unscrew the base remaining in the cartridge by unscrewing the cylindrical body of the electric cartridge, holding it by the bottom. If the case cannot be unscrewed, then you can try to grab the bulb base by the edge with pliers and thus unscrew it.

Repair of a collapsible electric cartridge E14

I had to repair a chandelier of five horns, in which only two light bulbs shone. The chandelier was old, Soviet-made with collapsible E14 cartridges with screw fastening of wires.

The chandelier was operated for many years with incandescent bulbs, and as a result of high temperature and weakening of the wires, they oxidized and burned at the clamping points with screws.

The screws got stuck in the thread and it was not possible to unscrew them with a screwdriver. I had to use pliers and as a result, in one of the cartridges, the fastening part broke off to fix the wire from the side contacts of the cartridge. There was no such cartridge at hand for replacement and I had to figure out how to repair it.

To do this, the fastening part of the contact was screwed up to the stop and a piece of copper wire, pre-coated with tin-lead solder, was inserted, as shown in the photograph.

After assembly, the installation site of the copper wire was filled with a large drop of solder using a soldering iron. The electric cartridge after the repair has become even more reliable than it was before.

For prevention, all five cartridges were checked and the contacts were cleaned with sandpaper. The wires were released, the burnt ends were bitten off, the insulation was removed and tinned with solder. But I came across one electric cartridge, in which, when unscrewing the screws, their heads fell off.

I repaired the cartridge using soldering, soldering the current-carrying conductors to the place where the screws were broken. Now the quality of the connection will be maintained for many years.

After such maintenance and repair, the chandelier will last for more than a dozen years, especially since LED filament bulbs are now screwed into the cartridges.

with screwless terminals

When repairing the apartment, the neighbor had to remove the chandelier from the ceiling. When she unscrewed the union nuts from electric cartridges with screwless contact clamps in order to remove the shades, then all the cylindrical parts of the cartridges detached from the bottoms and hung on the wires. The chandelier hung for only six years with incandescent bulbs. It became obvious that as a result of thermal exposure, the plastic became brittle, and the latches broke off. I decided to repair electric cartridges.

First, I sawed off the remains of the latches to the level of the platforms in the cylindrical base of the electric cartridge. In the photo on the left is a broken latch, and on the right - fitted to the required size.

The new latches were made from 0.5 mm thick brass sheet. A cut strip of brass, as wide as the latch that broke off, was bent into shape, as in the photograph. The latch can be made from any sheet metal, such as iron or aluminum.

The bent side of the strip was inserted into the bottom of the cartridge from the side of the rounded part. After that, a straight section of the strip was bent around the remaining holder of the broken latch, as shown in the photo.

After installing homemade latches, the bottom of the cartridge was screwed onto a decorative tube in the chandelier.

After connecting the electric leads to the cylindrical part of the cartridge, it was fixed to the bottom with the help of new latches. The do-it-yourself latches did an excellent job of holding the cylindrical part of the cartridge firmly. Now the latch will never break off.

The most common breakdown of fixtures is the burnout of lamps. First of all, this is characteristic of cheap incandescent lamps, but even high-quality fluorescent and LED lamps fail over time. Such a malfunction is easy to detect and fix, but it is more difficult to deal with a cartridge breakdown. We will tell you why it can occur, how to diagnose a malfunction and how to change a cartridge in a chandelier.

Main reasons for replacement

It is worth noting that the replacement of the cartridge is not always associated with the repair of the chandelier. Sometimes it is necessary to change the type of socket to be able to work with certain types of lamps or to improve the aesthetics of the luminaire.

The technical indications for replacement are the following:

• flickering of light that does not go away after replacing the lamp with a similar one;
• hum or crackle in the included chandelier;
• the smell of burning;
• complete failure when current is no longer supplied to the lamp.

The most common cause of these breakdowns is a manufacturing defect. Power surges in the household network, temperature fluctuations, high air humidity can also significantly reduce the life of the lamp.

Often, malfunctions occur due to overload, when a lamp is installed in the cartridge, the power of which exceeds the maximum allowable for this type of cartridge.

Necessary tools and materials

The list of materials and tools depends on the design of a particular lamp. The minimum set includes:

• screwdriver;
• pliers;
• stationery knife;
• insulating tape.

For a more professional performance of work, a screwdriver with interchangeable bits or even a screwdriver, a soldering iron with solder and flux, heat shrink tubes, and terminal blocks are useful.

Sealant or gel adhesive may be required to seal the cover.

Step-by-step instructions for replacing the cartridge

The chandelier is dismantled from the ceiling, while observing the safety rules listed below. For dismantling, it is usually sufficient to remove the device from the hook or mounting plate and disconnect the wires. The wires connected by twisting are disconnected manually or with pliers, but the terminal blocks will have to be loosened with a screwdriver. Then I do the following:

1. Unscrew the lamps from all cartridges, remove the shades and other fragile parts.
2. Unscrew the top of the cartridge by turning it counterclockwise. Depending on the model of the chandelier, it may be necessary to hold the lower part with pliers or to remove the contacts first.
3. Take out the ceramic base of the cartridge, remove the wires or terminals from its contacts.
4. Disassemble the new cartridge. Connect its central contact to the "phase", and the side contact to "zero".
5. The base of the new cartridge is mounted on the chandelier and the upper part is screwed onto it.
6. Assemble the chandelier in reverse order.

This completes the replacement of the cartridge. Now it remains only to return the lamp to the ceiling and connect the wires, carefully insulating the joints.

Precautionary measures

Before carrying out any work, the chandelier must be de-energized. At the same time, it is not enough just to change the position of the switch - it is better to protect yourself from all accidents by unscrewing the plugs or turning off the safety toggle switch.

Do not start dismantling the chandelier immediately after turning it off - the lamps must cool completely.

Take special care when working with glass and ceramic parts to avoid injury from broken pieces. Thick work gloves come in handy here. If dismantling and installation of the luminaire is carried out on a ceiling covered with plaster, put on safety goggles. But most importantly - do not save electrical tape, exclude any possibility of a short circuit both between the wires and one of the wires on the chandelier body.

Replacing a cartridge in a chandelier is a relatively simple procedure that requires care, accuracy and caution from the performer. If you follow the instructions and observe all safety measures, then there will be no problems.

The light bulb is screwed into a special device - a cartridge designed for a lamp, through which it contacts with an electric current. An electrical cable is connected directly to the cartridge from the mains. All decorative elements included in the design of the lighting device are also fixed to it.

In this article:

The general design of cartridges for lighting equipment

The product consists of the following parts:

• cylindrical body;
• sleeve;
• ceramic insert;
• bottom of the product;
• brass contacts;
• fasteners.

Note! The case is designed not only to fix the sleeve, but also to protect against electric shock. Inside it are placed the central contacts.

The sleeve has an internal thread, which is called the Edison thread. The light bulb is screwed into the socket thanks to the thread cut in it. Models of sleeves are produced with special nests on springs, into which the lamp is simply inserted, fixed by additionally equipped pins (their number for different models may vary).

After the contacts of the sleeve and the base of the light source come into contact, the electrical circuit is closed, when the mains voltage is applied, the lamp begins to emit a luminous flux. The current from the conductors is supplied by brass contacts

To connect electrical wires, cartridges can be equipped with various devices:

• contact connecting clips with screws;
• contact connecting clamps for which screws are not provided;
• connecting conclusions of wires;
• connecting leads to which wires can be soldered;
• special connectors.

Cartridge design options, their features

Types of products by design:

• screw;
• pin.

Their main difference is in the technology of fixing the light source. Incandescent filament lamps are usually equipped with a screw base. Accordingly, they are suitable for lighting equipment with screw sockets.

Expert opinion

Ivan Zaitsev

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Note! Modern energy-saving light sources (halogen, fluorescent, LED lamps) are produced with both screw and pin bases.

Type of products by material

Most models are made of special heat-resistant plastic. But there are also ceramic versions of products.

The main distinguishing characteristics of ceramic products

• On screw-type products at high temperatures, the fastening nut sticks. Therefore, it must be made of metal.
• With prolonged continuous operation, as a result of exposure to high temperatures, sticking of the sleeve with the base of the product also occurs. In such situations, when replacing a light bulb, the sleeve is unscrewed along with it.
• Advantage - withstand higher temperatures.
• The disadvantage is that they are much more expensive.

The main distinguishing characteristics of products made of heat-resistant plastic

• During operation, white products darken.
• Can be used with incandescent bulbs up to 60W.
• Advantage - low cost.
• The disadvantage is a rather short operating period. Products under the constant influence of high temperatures quickly dry out.

Different models of cartridges differ in their dimensions. For ceiling chandeliers, products marked E27, E14 are usually used. It is easiest to choose a light bulb for products of this design. That is, in such cartridges you can safely screw not only standard bulbs with an incandescent filament, but also energy-saving, LED ones.

Products marked E27, E14 have the same design. They differ only in internal diameter, sometimes they are equipped with a built-in switch. Also on the market are product options with a base E40, E10. The inner diameter of such products is 40 and 10 mm, respectively.

Note! Models E14 are designed for low power. To organize lighting in a room, you need to use several of them at once.

Type G lampholders are designed for fluorescent, halogen lamps. The most common on the market are G4, G9, GU10, R7S. Therefore, when buying, you should carefully look at the markings. The number after G indicates the distance between the legs.

Expert opinion

Ivan Zaitsev

Lighting specialist, consultant in the building materials department of a large retail chain

Ask an expert

Important! For lighting equipment that uses low-voltage lampholders, for example with a G4 base, a transformer is required.

We select a cartridge for a ceiling chandelier

The design of the product must correspond exactly to the factory one, which is installed on the lighting device. Otherwise, there may be problems with its fixation.

What else you need to pay attention to when buying:

• marking;
• dimensions;
• power;
• voltage.

• It is better to buy products with a ceramic case. They have a much longer operating life.
• It is worth choosing products from well-known manufacturers in the market.

Note! Products E27, E14 of the same quality.

Marking

Each product must indicate all the main technical and operational parameters:

• manufacturer;
• rated current (A), sometimes power (W);
• type of current (for cartridges equipped with an additional switch);
• rated voltage (V);
• rated impulse voltage (kV);
• maximum operating temperature;
• IP protection class.

Note! Products marked E27, E14 can be used for a rated voltage of 250 V. Models E27 - for a rated current up to 4 A (880 W), E14 - up to 2 A (440 W).

Cartridge replacement

When you need to change the cartridge in the lighting device

• The product does not work when the switch is turned on, that is, the light does not light up. The main reason is the surface of the central contact, the sleeves are covered with rust. As a rule, their cleaning is ineffective.
• Cracks and other mechanical damage appeared on the surface of the case, which can be seen with the naked eye.
• As a result of contact of internal parts, a short circuit occurs.
• The base with the sleeve "soldered" into one.
• The terminals are out of order.

Note! Planned replacement of the device is carried out every 5 years.

To perform this operation, you do not need to have special knowledge in the field of electricity. After carefully studying the recommendations of experts, the replacement can be done independently.

Tools, materials for replacing the device:

• screwdriver-indicator;
• mounting knife;
• electrical wire (small lengths may be needed);
• a new cartridge corresponding to the lighting device;
• terminal blocks;
• insulating tape.

Replacement instructions

• First of all, you need to de-energize the room.
• Next, the fastening elements that hold the chandelier to the ceiling base are disconnected.
• The bolts holding the terminals are unscrewed. Wiring is removed from their cavity.
• When the lamp is already on the desktop, you can unscrew the ceiling lamp holder itself, fixed in the housing.
• Now you need to insert the base of the new product, fix it.
• Further, a conductive ceiling cable is passed through the hole in the housing. Be sure to strip the end of the wire.
• We connect the wires of the electric cable. To do this, on the terminals located on the removable ceramic insert, unscrew the bolts, insert the wires and tighten.
• We insert the insert with terminals into special grooves, fix the case.
• We fix the chandelier back to the base of the ceiling.

This completes the electrical work. It remains to screw in the light bulb and check the operability of the lighting device!

1. It is recommended to buy only high-quality products of well-known brands in order to prevent premature failure of the device.
2. It is forbidden to replace the cartridge in the presence of mains voltage. The consequences can be quite serious.
3. If a malfunction of the main electrical wiring is detected, it is definitely worth replacing either the damaged section of the cable, or the entire wiring.
4. The phase must always be connected to the central contact of the product, but not to the sleeve (when the lamp is screwed in, it will shock).
5. Some cartridge models are equipped with lead wires. In case of connecting wires of different types (main - aluminum, from the lamp - copper), it is recommended to use special terminal blocks. If there are none, then after twisting the wires must be well insulated.

Expert opinion

Ivan Zaitsev

Lighting specialist, consultant in the building materials department of a large retail chain

Ask an expert

An electric bulb holder is a device that is a connecting node between a lamp 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 wires. The screwed burnt element is easily changed 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:

Connecting an electric chuck

To understand how to connect a light bulb socket, 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 reverse side. A screw is wrapped in it, which passes through ceramics and brass.

The screw is screwed in with good force, 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 connecting wires, 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 selection of the lamp is carried out.

Product fastening

Typically, the fastening of the cartridge in chandeliers or lamps is carried out at the bottom of the case. It is unacceptable to put a weight load on the wires. For fixing in the chandelier from below there is a hole into which a plastic sleeve is inserted. The wiring runs into it and is fixed with a bolt. A more reliable mount is a metal tube. Wires run through it. The nuts located on it allow the installation of ceiling lamps and chandelier caps.

There are special cartridges for installing ceiling lamps or wall lamps. They are carved on the outside. The clamping of hinged elements is carried out with the help of plastic bushings, which are screwed onto the threaded part of the cartridge.

It should be remembered that it is impossible to 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:

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

Dismantling and installation work

Armed with the necessary tools, you can take on the dismantling of the old structure and the installation of a new product. . The step by step instructions are as follows:

Power is supplied to the network, and the device turns on. If the work is done correctly, then the light should light up.

An electric cartridge is a product that is present in any lamp. Over time, the structure fails. The cause may be the presence of rust or a crack in the case. The main thing, notice it in time and work to replace it.