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Anonymous users2024-01-24Anyone who has learned the common sense of physics knows that the civil power supply of the general family is 220V, and the control switch only controls one live wire, and the zero line is directly into the lamp. When the neutral wire is used as a switch control line, the live wire will naturally feed directly into the luminaire, causing the daylight (energy-saving) filament to charge and trigger a phosphor flash. In addition, if you are using a control switch with an illuminated indicator in your home, it is also an important cause of fluorescent tube flashes.
Because the indicator light in the control switch is based on the zero line in the lamp as the loop, (that is: the live wire in the control switch - switch - control line - lamp filament - zero line), although it is a relatively weak current through, but it is enough to excite the fluorescent tube to flash. In addition, most of the fluorescent lamps and energy-saving lamps are used in electronic rectifiers, in which the capacitors and coils can store a certain amount of electrical energy, and there is still a certain charge after the switch is turned off, which needs to be released slowly, which can also excite the fluorescent tube to flash.
Solution:1Swap the switch control line (make sure the live wire enters the switch).
2.Select a switch without an illuminated indicator (fluorescent indicator type available).
3.Double-throw double-throw switch (zero and live wire switch control at the same time) can be selected.
4.Wound several choke coils by yourself and connect them to fluorescent lamps (fluorescent lamp heads) to bypass and isolate weak currents. (Generally, maintenance electricians in hotels and restaurants have this experience, go and ask for advice, the market seems to be not selling).
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Anonymous users2024-01-23Pull the switch off first, then turn on the control switch of the light, bring down the switch panel, and then see if the contact is normal, if there is no problem, but it is on the electrical box! It could also be a problem with the AC contactor or something.
I guess it's on the switch panel.
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Anonymous users2024-01-22The switch is connected to the ground wire, just change it to the live wire.
This phenomenon was prevalent in previous energy-saving lamps. But in LED fixtures, these are all versions that can be eliminated. >>>More
The wires are too thin and not done according to national regulations. The minimum wires of the state regulations are strictly forbidden to be used. >>>More
There must be a problem, the lamp will be tested before installation, the lamp is no problem must be the problem of the line, you directly find the decoration company, do not help you change it you will not accept. >>>More
Here's why: the switch controls the neutral line!
Electrical analysis: the lamp is turned off and is still connected to the live wire, there is also electricity, the live wire will form an electric field, the phosphor in the lamp is discharged, the phosphor close to one end of the live wire is electron in the electric field, and the end away from the live wire is less affected by the electric field and is considered to be not charged, so that the phosphors at both ends of the lamp form a voltage, when the continuous discharge makes the voltage high enough to penetrate the entire lamp, the voltage breaks through the lamp to discharge the lamp and flash, the electrons with the lamp are neutralized, the voltage disappears, and the lamp becomes dark, and proceed to the next charge-discharge cycle, resulting in a flash! >>>More
Duplex switch, when decorating, you can put forward the demand with the electrician.