Why is the energy -saving light flashing

Why is the energy -saving light flashing

People try to save resources if possible. This savings and energy did not go around. More and more consumers get rid of incandescent lamps and replace them with energy -saving. These lamps have advantages and disadvantages. Let's say many people have encountered a problem such as flashing a light bulb after a certain period of time when the switch is turned off. There may be several reasons, and we will try to consider the main ones.

1
First, we will superficially analyze the device of an energy -saving lamp (so that it is clear to those who are very far from the electrician). The lamp consists of tubes and a board that makes these tubes glow. It has a diode bridge and a network filter, because the lamp works from direct current, and we have a variable on the network. The network filter device includes a capacitor. On this, we finish the device of the lighting source, since all the problems with flashing are concluded in this capacitor.

2
One of the reasons for the blinking of the lamp is the switch with the backlight built into it. The backlight, and this is an LED or a neon lamp, is connected in the switch itself in parallel to the inclusion contacts. When the switch is turned on, the current flows normally, and the lamp shines, and when the current is turned off, the current begins to flow through the backlight and charges the capacitor of the network filter. This current is small, but he can still charge the capacitor. When the capacitor is charged, it lights the lamp, but the current is not enough, and the lamp goes out. Then everything is repeated.

You can solve this problem like this:

  • Replace the backlit switches with simple. In the off position, the contact will be interrupted, and the current will not be submitted to the lamp, respectively and the lamp will stop blinking.
  • If you have a lamp with several bulbs, then replace one with a low -power incandescent lamp. 25 watts is enough. The current passing through the backlight will go to heating the filament threads, and the capacitor of the network filter will not be charged.
  • If the lamp is on one lamp, then in parallel it can turn on the resistance. It can be mounted directly in the lamp itself or in the camshaft, connecting parallel to the wire going to the lamp. The resistance should be 50 kOhm at a power of 2 watts.

3
Another reason when the housekeeper flashes when the switch is turned off may consist of incorrect accession in the disaster. According to the PUE rules, the phase wire should be interrupted by the switch, and not zero. And if you have a phase wire right on the lamp, and zero through the switch, then the lamp will blink. To do this, in the rosprication, you need to change the wires. It is best to invite a specialist for such work, but you can do everything yourself. Disconnect the supply of electricity and find the wires that go to the switch and lamp in the camshaft. They are connected in series and connected to phase voltage. Disconnect the wires from the input and change them.

Try to get rid of the blinking of an economical lamp, because this defect significantly reduces its life.

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