How to connect tubular LED lamps
Good day. This is my situation. I pulled the cable 5 in width and 4 in length on the ceiling (garage room). The distance between the cables is 120 cm, i.e. corresponds to the length of the tube lamps. I hung all these lamps 39 pcs. on these cables. The result was a grid of lamps hanging on ropes just below the ceiling. Now I have a question. If I connect them together and in the event that one lamp burns out, will the network be interrupted? The lamps themselves are LED. And the question is different, can they be interconnected by one contact of two? So they work too. And if that doesn’t work out, what do you advise. Thanks a lot to the project. Lamps are reflected in the photo. I hope everything is explained clearly.
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Hello! In this case, it all depends on the operating voltage of the lamps. If your lamps are rated for 220 V, then you connect them in parallel with each other - in this case, when one of the lamps burns out, the rest will remain in operation. If the supply voltage is different and several lamps are interconnected in series, then in the event of failure of one of the lamps several lamps will be de-energized - those lamps that are interconnected in series.
At the expense of contacts - in this case, everything also depends on the supply voltage. If the supply voltage of one lamp is 220 V, then the supply wires go to two contacts of one lamp, then these wires branch to two other contacts of another lamp, etc. - that is, the lamps are connected in parallel. In this case, it is better to branch off not on the lamp itself, but separately, since the terminals on the lamp may not be designed for the total load current that will flow through the conductors when all the lamps are connected. If the supply voltage is different, then the lamps are connected in series - that is, the voltage goes to one terminal, then from the second terminal of the first lamp to the first terminal of the second lamp, etc. There are lamps that are powered by a step-down transformer - in this case, the connection is also carried out depending on the voltage of the lamps and the voltage at the output of the transformer.