For do-it-yourselfers to see the light, it’s important to keep an overview of the cable tangle when connecting lamps. The following instructions give step by step tips for installation.
In four steps to the light. Connect a ceiling lamp succeeds with the build.de instructions in no time at all. Photo: Bernd Jurgens, Fotolia.com
Connect challenge lamp: Three, sometimes only two, cables hang from the ceiling – these must be connected to the lamp’s wires via a luster terminal. The following instructions show in which order it is best to proceed.
On the lamp or from the ceiling are usually three wires: First, the protective earth (PE), also called grounding: a yellow-green, sometimes red wire. This is the most important protective instrument of electrical devices, especially if the lamp is made of an electrically conductive material such as metal. The phase (L), usually a brown or black wire, provides the current for the lamp. The third cable is the neutral conductor (N), which is usually blue, in old buildings also gray. This cable carries the current, in simple terms, away from the lamp.
Especially in old buildings often only two wires come out of the ceiling: the current carrying phase and the neutral wire.
To properly install a lamp, a luster terminal is needed to connect the lamp cable to the lamp. If the cable is too long, it is advisable to shorten it with a cable knife.
Tools and materials for connecting the lamp
The following tools and materials are needed by the do-it-yourselfer to connect the lamp:
Photos: v.l.n.r.: ladder by Gudellaphoto – Fotolia.com, luster terminal u screwdriver by Denis Junker – Fotolia.com, lamp with socket by Radio Kolsch Hamburg, light bulb by chones – Fotolia.com Gudellaphoto, Denis Junker, chones
B.K.Light I swiveling LED ceiling light I 3-flame ceiling spot incl. 3x 3 W GU10 bulb I warm white light color I 3x 250 lm ceiling lamp I living room lamp I length: 38.5 cm
Ceiling Light Led,Ouyulong 36W 6500K 4350LM ceiling lamp led for living room, bedroom, kitchen, hallway, balcony, dining room, cool white，Led ceiling lamp square , 23cm
SHILOOK LED ceiling light flat dimmable with remote control, 24W ceiling lamp RGB color changing square for bedroom/living room/bathroom/hallway/kitchen/basement, IP44 waterproof, ultra-thin White
When connecting the lamp, the following steps must then be followed:
Step 1: Unscrew the fuse
First, the fuse must be unscrewed, so that there is no longer any voltage on the cable or circuit. Turning off the light switch alone is not enough. With the phase tester, also often included in the screwdriver, you can check whether current is still flowing. If there is still current on the wire, a red light usually comes on.
Step 2: Loosen screws on luster terminal
If a luster terminal has not yet been fitted, a luster terminal must now be fitted. It is used to connect the different cables with each other. At the luster terminal, the screws should only be loosened so far that the individual wires fit in without any problems. Caution: Do not unscrew the small screws too far or they will fall out.
Step 3: Connect the wires
Now the cables have to be connected. Usually the wires sticking out of the wall have the same color as on the lamp. These wires are now connected to each other via the luster terminal. The following applies: Color must match color. So black to black (or brown), blue to blue (or gray) and yellow-green to yellow-green. For lamps with plastic socket, the yellow-green grounding can be omitted.
- First, the Protective conductor (yellow-green) plugged into the connection point of the luster terminal.
- This is followed by the Neutral (blue or gray).
- In the third step phase (black or brown) plugged into the luster terminal.
- If more than three cables come out of the ceiling it can be more phases (black, gray or brown) Act. Additional phases do not need to be connected.
When connecting the lamp, the following applies: color must match color. Graphic: Marekich Graphic: Marekich
Caution: In old buildings, often only two cables protrude from the ceiling: the phase and the neutral conductor, the protective conductor is missing. In this case, do not connect lamps that are not themselves insulated for protection. If in doubt, please be sure to hire an electrician.
When all wires are connected, the screws of the luster terminal have to be tightened again.
Step 4: Fix the lamp and screw in the fuse
If there is a cable cover, it will be pushed towards the ceiling in the last step. Attempts should be made to hide the lamp cable as well as possible in these projects. If they are ceiling spotlights, they have to be screwed in place. Often there is also a hook on the ceiling on which the lamp can be hung. Then the fuse has to be turned back on.
Dismantling a lamp
If you want to dismantle a lamp, the reverse order applies: first disconnect the black (or brown) wire, then the blue (or gray) wire, and finally the yellow-green wire.