The circuit is normal, why does the light bulb always burn out?
The light bulb is easy to burn out for several reasons: first, the voltage is on the high side; second, the quality of the light bulb (the current quality is really unflattering); third, there may be something wrong with the switch, the switch contact is not good, and it is easy to burn out the light bulb.
It is possible that the fault caused by the long-term imbalance of three-phase power, especially the current value of each phase in the specific three-phase operation of three motors. Whether the auxiliary start-up power can be redistributed so that the three phases are balanced, because this is the big head. Only when the three-phase current is more balanced, the C phase will not have the possibility of raising the voltage and lead to the opportunity to burn the lamp.
Often burn out the light bulb, in general, it should be a new type of electronic energy-saving light bulb, it should be said that if replaced with the old incandescent bulb, generally will not burn out.
The circuit load is too large: if the load of the circuit where the bulb is located is too large, it will cause the circuit to generate too much voltage and current, which will cause the bulb to burn out. There are too many branches in the circuit: if there are too many branches in the circuit, it is easy to cause the bulb to burn out.
What is the reason why light bulbs often burn out?
1. So voltage and current are the main reasons why the light bulb often breaks down. In addition, the current product quality is uneven, it is possible that what you buy is a shoddy light bulb. Or you can buy a product that does not match the working voltage of the power supply, which can easily lead to burnout of the light bulb.
2, the voltage in the home is too high, the voltage is too high, the light bulb will not only burn out, but also explode and cause fire, the hidden danger of safety is still relatively large, if the voltage at home is unstable, be sure to invite a professional electrician to repair it. Before repairing the voltage, you must turn off all the electric valves at home.
There are only three reasons why incandescent bulbs often burn out: the quality of the bulbs is poor. The power supply voltage of the district is high and unstable. You can consult your neighbors to see if the problem of high voltage instability can be solved. The bulb is turned on and off frequently, which greatly shortens the service life of the bulb.
4. There are mainly the following reasons: at present, the production quality of some manufacturers in the market is very poor and is easy to burn out, which is a common phenomenon. In view of this situation, when we buy a light bulb, we must choose a regular large brand bulb with guaranteed quality. First, the quality will be good for a long time.
The light bulb at home is always broken. What’s the matter?
So voltage and current are the main reasons why the light bulb often breaks down. In addition, the current product quality is uneven, it is possible that what you buy is a shoddy light bulb. Or you can buy a product that does not match the working voltage of the power supply, which can easily lead to burnout of the light bulb.
The voltage in the home is too high, the voltage is too high, the light bulb will not only burn out, but also explode and cause fire, and the hidden danger of safety is still relatively large. if the voltage at home is unstable, you must ask a professional electrician to repair it. Before repairing the voltage, you must turn off all the electric valves at home.
The reason why the light bulb is always broken: it should be caused by poor zero-wire contact. It is recommended to measure the voltage first to make sure that the voltage is normal. Temporarily connect a zero line from the outside, connect the lights, and see the results.
How is the light bulb always burnt out?
Incandescent bulbs often burn out for only three reasons: the poor quality of the bulbs. The power supply voltage of the district is high and unstable. You can consult your neighbors to see if the problem of high voltage instability can be solved. The bulb is turned on and off frequently, which greatly shortens the service life of the bulb.
There are three main reasons why incandescent bulbs often burn out: the incandescent bulbs commonly used are of poor quality. If you live in a neighborhood where the power supply voltage is high, there is often instability. It will also greatly reduce the useful life of the light bulb.
So voltage and current are the main reasons why the light bulb often breaks down. In addition, the current product quality is uneven, it is possible that what you buy is a shoddy light bulb. Or you can buy a product that does not match the working voltage of the power supply, which can easily lead to burnout of the light bulb.
