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Connect the lamp: it's that easy
Connect the lamp: it's that easy

Video: Connect the lamp: it's that easy

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Video: Simple Plug in Light and Switch 2023, February
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Connecting a lamp is no problem for people with a little manual skill. Nevertheless, when dealing with electrical conductors, it is extremely important that safety comes first.

The term lamp is most commonly used colloquially - but strictly speaking it is a lamp. Experts refer to the lamp as the lamp - i.e. the light bulb, LED or halogen lamp.

Hanging and connecting a lamp is done in two steps. First of all, you have to fix the lamp yourself securely to the ceiling or wall - never come up with the idea of ​​just hanging it on the power cable with a luster clamp! Especially with heavier ceiling lights, a solid metal hook that is anchored in the ceiling is imperative.

Turn off the power and fix the lamp

Before you hang up the old luminaire or drill the hole for the dowel, use a line finder to check where the power cable runs in the ceiling and mark the drill hole for the lamp suspension outside this area. After that, first test whether your current tester is working correctly at a socket. Now switch the FI switch in the fuse box to zero to interrupt the power supply in the entire house. After switching off the power, check all phases of the overhead line for current flow - if the phase tester does not light up, you can get started.

Important: Observe these safety instructions when working on electrical cables. Although an electric shock from a 230 volt cable is generally not fatal to a healthy person, it can still have serious health consequences for people with pre-existing conditions such as cardiac patients. In addition, secondary accidents are not uncommon - for example, if you stand on a ladder and lose your balance in fear.

Lampe anschließen Sicherung herausdrehen Phasenprüfer
Lampe anschließen Sicherung herausdrehen Phasenprüfer

Check whether there is still voltage on the power line.

Photo: DIY Academy / Draksal Fachverlag

Drill a hole in the ceiling and then insert a suitable dowel or, for wooden ceilings, screw a screw hook into the wood. For heavy luminaires, this hook should not simply be screwed into the ceiling cladding, but always into a support beam. If the ceiling was suspended with plasterboard, you need a special dowel with hinged wings - it is also called a toggle or cavity dowel.

Make sure that the hook is placed as close as possible to the connection cable so that you can conceal both with the cable cover of the lamp afterwards.

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Drill a hole in the ceiling near the power cables to hang the lamp there. But be careful not to damage any wires - the best thing to do is to follow our tips on finding power lines. In addition, the bracket should be resilient later. If the hook is firmly in the ceiling, you can hang the lamp on it.

Photo: DIY Academy / Draksal Fachverlag

Light lamps usually have a plastic eyelet as a hanger, which is attached directly to the cable. The connecting cable is simply s-shaped through two eyelets and the third serves as a suspension. In the case of heavier lights, the suspension and power cable must be statically separated, since the cable cannot sustain the weight without damaging the insulation.

Only connect the lamp after hanging up

If you want to connect a ceiling lamp, you first need a luster terminal. It connects the lamp cable with the connection cable that comes from the ceiling or the wall. If the cable is too long, you can shorten it with a cable knife. But be careful, do not cut too much cable, otherwise it will be too short in the end!

The power cables can usually be easily distinguished by their colors. In most cases you can see three wires coming out of the wall or ceiling. First there is the protective conductor (PE), also called grounding. This wire is mostly yellow-green, less often covered in red. Grounding is the most important protection for electrical devices, especially if the lamp is made of an electrically conductive metal. It discharges the current in the event of a short circuit and ensures that the residual current circuit breaker is triggered by the voltage drop and the power supply is interrupted.

Stromleitungen
Stromleitungen

Three conductors, three colors: The blue or gray neutral conductor is normally voltage-free. The protective conductor (yellow / green) ensures that the main fuse pops out in the event of a short circuit. The tension is on the brown or black phase. But be careful: In many old buildings, the colors of the cables differ from those of today's electrical cables. In this case, it is better not to risk anything and have the lamp connected by an electrician.

Photo: DIY Academy / Draksal Fachverlag

The phase (L) is usually a brown or black cable. It supplies the electricity for the lamp. The third cable is the neutral conductor (N), which leads the current away from the lamp and closes the circuit. It is usually blue, sometimes gray (in old buildings). In old buildings, only two wires often come out of the ceiling: the live phase and the neutral conductor.

Connect ceiling lamp: You need this tool

You need the following tools and materials to connect a lamp:

  • ladder
  • Screwdriver, if necessary with phase tester
  • Voltage tester (if not integrated in the screwdriver)
  • Luster clamp
  • Wire stripper
  • electrical tape

The steps to connect the ceiling lamp

Before you tamper with the power cables, test again with the phase tester to make sure that no current is flowing - preferably in both light switch positions, because only then can you be sure that the power supply is actually cut off. Above all, do not do without this precautionary measure if you do not exactly know the circuits in your house - for example, it could be that two residual current circuit breakers are installed in the control box and you have accidentally switched off the wrong one.

Connect lamp and power cables with a luster terminal

Lüsterklemme mit Stromkabeln für die Lampe
Lüsterklemme mit Stromkabeln für die Lampe

Using a luster clamp, the cables from the ceiling are connected to the cables of the same color in the lamp.

Photo: DIY Academy / Draksal Fachverlag

After hanging the lamp, the cables from the ceiling are connected to the cables of the same color in the lamp using a luster clamp. If there is no luster terminal with the lamp, you can also buy it cheaply at electronics stores or hardware stores for little money. If necessary, you can use a wire stripper to remove a piece of the plastic sheath from the cable wires.

First, the protective conductor (earthing) is connected to the luster terminal on the current-carrying ceiling cable, followed by the neutral conductor (blue / gray). Finally, insert the phase (brown) into the luster terminal. Earthing is not necessary for lamps with a plastic socket - but if there is one, you should still connect it correctly. Unscrew the screws just enough that the wires fit in - and then tighten them again. If only a two-core cable without protective conductor protrudes from the wall or ceiling - which often occurs in old buildings - first connect the neutral conductor and then the current-carrying phase. Connect the wires of the lamp cable to the luster terminal in the same order.

Test the function of the lamp

When all the cable wires for the power supply are connected, screw the lamp - the actual lamp - into the socket. Switch the fuse back on and test whether the lamp works. You may also have to flip the light switch again. Then switch it off again and remove the fuse again.

Lampe aufhängen
Lampe aufhängen

After everything is connected, slide the cable cover over the cables.

Photo: DIY Academy / Draksal Fachverlag

Now wrap the luster terminal and the last centimeter of the connected cable wires with insulating tape. To cover the connections and the suspension of the lamp, push the canopy or cable cover on the lamp cable up towards the ceiling and fix it with the small clamping screw if necessary. Now you can set the residual current circuit breaker to 1 and have successfully completed the "Connect lamp" operation!

Extend and re-route lamp cable

If the power cable is too far away from the intended installation point of the ceiling people, you need a so-called monkey swing on solid ceilings to guide the power cable there. To do this, you need a flat junction box that is screwed onto the ceiling at the outlet opening of the cable. In the box, it is connected to the new cable piece using a luster clamp, which is then easily led under the solid ceiling to the new connection point of the lamp.

In the case of hollow ceilings made of wood or suspended ceilings, there is also the option of leading the connection cable through the interior of the ceiling to the new connection point, provided that no crossbeams block the path there. First pull the cable out of the ceiling as far as possible to see if it is long enough. Then attach the cable end firmly to a thin binding wire and run it through the interior of the ceiling to the previously drilled new exit hole. Use a pair of pliers to pull it out, then push the cable and the other end of the binding wire attached to it back into the ceiling and pull the power cable to the new exit point.

If the cable is too short, you need to extend it. To do this, push a new cable from the new outlet opening through the interior of the ceiling to the old one and pull it out there with the pliers. Then connect both cables with a luster terminal and tape them completely and thickly with insulating tape. Then insert the connection through the old exit hole into the hollow ceiling - you may have to widen the opening a little so that the luster terminal fits through.

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