![]() If you need more lights on the same circuit, switched from the same switch, you will have to repeat the process, by connecting the third light to the second, and if needed the fourth light to the third and so on. Connect the Line (brown) wire to the SWL terminal, together with the lamps Line wire, and connect the Neutral (blue) wire to the N terminal. This means that you need to run a length of flat Twin&Earth cable from the first light to the second and connect the Line and Neutral wires parallel with the first lamps Line and Neutral wire. We have extended to wiring diagram above to describe what you need to do (click to enlarge):Īs you can see, if you need more lights added on to the same circuit, you just have to connect them parallel to the first light. What if you need more than one light switched from the same switch? Now you know how to wire a basic lighting circuit with one light switched at one point. Once tested and connected to the live supply, the lighting circuit will be operational. In effect this is exactly the same wiring as the diagram on the top of the page, but with the utilisation of the flat Twin&Earth cable. This will make up the loop that forms the switched Line wire. Do not forget to connect the Earth wire to the Earth terminal. Again, do not forget the brown slewing to indicate the switched Line wire. Line (brown) to the L1 terminal and blue with the brown slewing to the L2 terminal. Step 4: Connect the switch to the cable coming from the light. ![]() Once you know this, every other lighting circuit will be easy to wire because the principles are the same. Once connected the light pendant should look like this (click to enlarge): You must use the brown slewing to indicate the switched Line wire. Do not forget to connect the Earth wire to the Earth terminal.ĭo not forget the brown slewing! Without it, the blue wire indicates a Neutral wire. The SWL terminal is the terminal with the wire going to the lamp itself. Connect the Line (brown) conductor to the L terminal at the light and connect the blue wire with the brown slewing to the SWL terminal. Step 3: Now you must run a length of flat Twin&Earth cable from the light to the switch. If these connectors are not provided then you must use push-in connectors or strip connectors to make all the necessary connections.ĭo not forget to connect the Earth wire to the Earth terminal. Most other lights will also have all of these terminals (SWL, L, N) provided. In the case of a standard domestic light pendant, these terminals will be provided basing on the pendant. The N terminal will already have a wire connected for the lamps Neutral supply. The L terminal if not labelled is the one without any wires connected to it. Connect Line (brown) to L terminal and Neutral (Blue) to N terminal. Step 2: Connect the supply cable to the L and N terminals. Also, a Safe Isolation Procedure will have to be carried out! DO NOT connect this cable to the live supply! This must only be done after the whole circuit is finished and fully tested to comply with BS 7671. The first thing to do is to run a length of cable from the supply (distribution board) to the light itself. ![]() Light pendants are mostly used in domestic environments, but the principle of wiring is similar to all types of light fittings. Step 1: The first thing we need to understand is how to wire a light pendant. It is a modern way of wiring which reduces breaks in the cable and makes the work much easier and faster. This wiring diagram shows how all houses and most of commercial lighting installations are wired these days. The wires are enclosed in an outer sheet and are flat Twin&Earth cables. This is where the wiring diagram below comes in to place (click to enlarge):Īs you can see on this diagram, between every point of the installation (supply, switch and light) there is a set of wires running. This means that if we want to maintain the integrity of the cable throughout its length, we need to think of a slightly different approach to wiring the lighting circuit. In domestic and most commercial installations we would use simple flat Twin&Earth cable which comprises a Line, Neutral and Earth conductor all together in an outer sheet. Today only some of the big industrial installations are wired this way with the use of Singles Cable enclosed in steel conduit or steel trunking containment. In real life however, you can very rarely do this sort of arrangement. If you look at the above diagram again, you will see that both Line and Neutral wires are described as standalone cables going to the necessary points.
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