What is the reason why the bulb bursts in the state of lights out

This is a matter of physical thermal stress.

The temperature of the bath bomb is very high, and the fluorescent tube in the middle can receive the heat generated by its own luminescence and the radiant heat from the adjacent incandescent lamp. When the bath bomb is turned on, the fluorescent lamp glass will gradually be heated to a fairly high temperature. Because the temperature rises gradually, the temperature difference between the inside and outside of the lamp glass is not large, and the thermal stress of expansion is similar, so there will be no problem.

When the power supply is turned off, the heat inside the fluorescent tube still needs time to dissipate, and the radiant heat from the adjacent incandescent lamp is instantaneous, which will immediately cause the temperature difference between the inside and outside of the glass tube wall to be too large, resulting in thermal stress imbalance.

Therefore, when choosing to buy a bath bomb, it is better to use the special incandescent lamp that is standard with ordinary bath bombs for the middle lamp.

I have already bought a fluorescent tube in the middle, and when using a bath bomb, pay attention to avoid using heating lamps and lighting lamps at the same time. If you accidentally forget, if you have used it at the same time, do not open the bathroom doors and windows immediately after taking a shower, so as not to let cold air enter the bathroom and aggravate the temperature difference between the inside and outside of the fluorescent lamp wall!

Fluorescent tube bursts, mainly with careful handling of glass. Fluorescent lamps contain mercury vapor, so don't rush to approach the lamps that have just burst, and see the damage clearly before dealing with them safely.

It could be a shock of the circuit load, not a circuit problem!

1. The bulb bursts and the power is off, which means that the bulb is broken, and it is possible that air will enter and the filament of the vacuum will be oxidized, because the temperature of the bulb is high, and the high temperature will make the bulb ** when there is air.

2. It may also be a short circuit. Or you have too many high-powered appliances in your home. You need to check it, don't replace it with a new one right away, you first check whether other electrical appliances in the home are broken and cause a short circuit in the circuit.

Then you turn off the other appliances in the house, and the wiring is going to be broken. Then change to a new one.

Question 1: What is the reason why the bulb is easy If it is not the quality of the bulb, the power supply voltage is too high, and the voltage of the general transformer is relatively high when the load is small.

Question 2: What is the reason for the bulb ** I asked the electrician I don't know, then it should be said that the voltage is normal, but you still find a multimeter to measure, whether it is about 220 volts, the difference of ten volts is normal. Since it is a three-phase electricity in the home.

In the main switch box, 380 volts of three-phase electricity may be misconnected all the way to your house. You can also use an electric pen, but it is not accurate, first measure the electricity in the normal room, pay attention to the brightness of the indicator light, and then measure your problematic electricity, the brightness is higher and it is not normal, do not install the lamp to measure the two terminals on the lamp head, and the full brightness may be 380 volts. If it is an incandescent lamp, you can see if your bulb is 220 volts, or change it from another house, it is recommended to use energy-saving lamps, which can also be used with large voltage fluctuations, 150-250 volts, such as very energy-saving.

You should not be a fluorescent lamp, or the ballast is not good, or the line is wrong, you can only burn the filament of the lamp, and it will never **.

Question 3: Under what circumstances will the bulb hit.

Lights up after air intake.

Those greater than 40w will be lit up in case of rain, and those less than 25w will not explode in rain.

When the high-power bulb leaks, it will suddenly ** if it is not exposed to cold or water.

Question 4: What is the reason for the bulb suddenly** The bulb is suddenly ** caused by the heat expansion and cold contraction to the air pressure inside and outside the bulb.

Question 5: Why does the bulb explode for no reason 1. The voltage suddenly rises.

2. The bulb works for a long time and the temperature is too high.

3. The place where the bulb works vibrates too much.

4. Quenching, so that the inner and outer surface stress of the blister shell changes greatly in a short period of time, resulting in ** (external causes).

5. The air pressure in the blister is too high, and when the incandescent lamp is lit, the gas is heated and expanded, and the blister cannot withstand it

6. The filament can not withstand the voltage impact, due to the filament, such as the filament, the filament aging, etc., so that the filament becomes thinner somewhere, the resistance here is the largest relative to the whole filament, so the luminescence and heat are also the largest, the tungsten on the filament continues to evaporate in the blister, and the arc is generated at the moment of the last break, and the arc makes the local gas expand instantaneously, and produces **, (quality reasons).

Question 6: What is the reason for the bulb ** on the chandelier Hello:

Caused by excessive temperature, or continuous non-stop switching.

There are several main reasons:

1.At present, some manufacturers on the market have poor production quality and are easy to burn out, which is a common phenomenon.

In view of this situation, we must choose regular big brand bulbs with guaranteed quality when buying bulbs, first, the quality will be easy to use for a long time. Then there is high security, and some three-no products on the market are easy to cause potential safety hazards.

2.The voltage may be high or unstable, exceeding the rated voltage of the bulb.

Solution: 1) We can connect a bulb in series to divide the pressure.

2) Install the voltage regulator. This is an effective way to solve voltage instability. With the installation of a voltage regulator, you can safely and stably use electricity at any time and anywhere. It is important to note that it is best to seek professional help when purchasing and installing a voltage regulator.

3) Install UPS. If you have the conditions, you can use a UPS to stabilize the voltage. UPS is also called uninterruptible power supply, it not only has the advantage of continuing to use after power failure, but more importantly, it can stabilize the voltage very effectively.

Because its power supply is output through a built-in power supply. If you use a UPS, the voltage becomes very smooth.

3.The bulb cannot be turned on and off frequently, and sometimes children play with it, and it is easy to burn out the bulb due to the repeated cold and heat of the filament.

The bulb is full of inert gas, and the resistance wire inside the bulb plays a role in protecting the resistance wire of the bulb inside, because the bulb is out of the air right, and the air expands rapidly at the moment of turning on the lamp, so that the bulb **, at the same time, the resistance wire melts quickly without the protection of inert gas, and before the fuse, the current becomes sharply larger, so that the circuit protector trips. I hope to adopt.

There are only three reasons why incandescent bulbs often burn out:

1. The quality of the bulb is poor.

2. The power supply voltage of the community is high and unstable. You can consult your neighbors to solve the problem of high voltage instability.

3. The bulb is turned on and off frequently, which greatly shortens the service life of the bulb.

1. The lamp is large and the nanowire is heated, the tungsten filament is sublimated (from solid state directly to gaseous state), the filament becomes thinner, the resistance value becomes larger and burns off.

2. Incandescent lamps should be filled with inert gas to prevent the filament from reacting with oxygen in the air at high temperatures. Therefore, whether the amount of inert gas filled with the filament is sufficient, and whether it is mixed with air during filling (it is impossible to have 100% free air in the bulb) is also crucial.

3. Energy-saving lamps emit electrons by filament and bombardment phosphor, and its heat generation is very small, which belongs to a cold light source. Its lifespan depends mainly on the filament, which continues to emit electrons and thinner and finally break.

4. From the above, it can be seen that the life of incandescent lamps depends on the purity of the inert gas filled, the heat dissipation of the bulb, and the quality of tungsten filament (thickness, length, purity), etc., because the working condition is worse than that of energy-saving lamps, so it is easy to burn out.