Discussion in ' Electricians' Talk ' started by EstellaJan 29, Log in or Sign up. Screwfix Community Forum. Light bulbs exploding is it dangerous Discussion in ' Electricians' Talk ' started by EstellaJan 29, My light bulbs have been exploding in the upstairs rooms.
Its happen 3 times now in the last year. Could this be an electrical fault, wiring is old at least 20 years. It happens when my lightbulbs blow. This time there was a spark wish burnt a small hole in my beding and a really loud bang. Any help i would be really grateful thanks. EstellaJan 29, Faulty wiring can cause this, need to have a.
KIABJan 29, Cheap bulbs? Old type-industrial quality? I'll bet! Been getting a lot of call outs for exploding lamps I'm finding it down to the quality of the lamp ie sh t I think it because l e d has come down in price so the quality of the tungsten lamp is now carp if I were you I'd try l e d and go from there.
SparkielevJan 29, Alan sherriffJan 30, My guess is that they explode when you switch them on, not while running. It is the initial current inrush on a cold filament that causes TF lamps to fail.
Now for the 'explosion'. When the filament breaks as the lamp is switched on, an arc is drawn between the filament ends, the heat produced continues to melt the filament, which in turn is vaporised by the heat.
The current flowing through the vaporised filament ionises the vapour, making it a good electrical conductor. The filament continues to vaporize and this fill the bulb with vaporized ionised gas. Now the wires up to the filament are shorted together by the ionised vapour, these are thicker and allow more current to flow, creating more heat and pressure within the bulb. It is at this point that the glass envelope bulb bursts due to the very high gas pressure within it, showering the hot contents around the room.
Traditionally, filament lamps incorporated a small glass fuse in the wires leading from the cap to the filament, under the fault conditions described, this fuse would blow and disconnect the lamp from the supply in the early stages of failure, preventing the pressure build up in the bulb and the subsequent dramatic failure.
The cause, as said before, cheap bulbs and a higher than average prospective short circuit current. Bob RathboneJan 30, You're all doing well guys. I don't think so! Bob, the op may well be inteested in the physics behind the issue, but you haven't even come close to yes or no.
Estella, without knowing the condition of the wiring, the voltage fluctuations and spike etc where you are it is difficult to give a straight yes no answer. I would suggest you contact a local, reputable electrician and get an EICR electrical installation condition report carried out.
As stated, it may be cheap lamps, but it could be a number of other things. If the wiring is 20 years old an EICR is a good thing anyway because it wil highlight any other potentially dangerous issue.Back to Accidents, first aid and treatments.
Some thermometers and light bulbs contain very small amounts of mercury. If you break one, it's unlikely to cause any health problems. However, you should avoid contact with the mercury and take extra care when cleaning it up.
Mercury is a metal that's liquid at room temperature. It looks like silvery-white beads or balls globules. Liquid mercury is sometimes called metallic or elemental mercury. Mercury thermometers are being phased out. You can use several other types of thermometer to take someone's temperature, such as digital thermometers, thermometer strips and ear thermometers.
Traditional tungsten or filament light bulbs don't contain mercury. These bulbs are being phased out and replaced with energy-saving light bulbs.
How Dangerous Is a Broken Fluorescent Bulb?
Some energy-saving light bulbs contain a tiny amount of mercury, sealed inside the bulb. In one bulb, there's usually less than 4mg about enough to cover the tip of a ballpoint pen. Fluorescent light strips or tubes, such as those sometimes used in kitchens and garages, also contain small amounts of mercury.
If you break a mercury thermometer or light bulb, a small amount of liquid mercury may spill out. Liquid mercury can separate into small beads, which can roll some distance away. The mercury may also evaporate into vapour. It's sensible to take extra care when you clean up the mercury. Below are some tips to help you do this:.
Local councils provide facilities where you can dispose of the hazardous waste, such as local tips and recycling centres. Mercury spills on absorbent surfaces, such as carpets and upholstery, can be difficult to clean up. In these cases, it is advisable to get in contact with your local authority's environmental health department.
The affected areas may need to be removed and disposed of in a particular way. Although mercury is poisonous toxicit usually only causes problems if you inhale large amounts of it. Very little mercury is absorbed by your body if you swallow a small amount of liquid mercury or get it on your skin for a short time. This is considered almost non-toxic and you'll probably have no symptoms. However, if you breathe in mercury vapour or globules, it can be absorbed into the bloodstream and cause symptoms such as:.
Your eyes may be sore if mercury vapour gets into them. Your eyelids may also twitch and become red and swollen. Page last reviewed: 8 June Next review due: 8 June Menu Menu. Search Everywhere Threads This forum This thread. Search titles only. Search Advanced search…. Everywhere Threads This forum This thread. Search Advanced…. Log in. Trending Search forums.Protezione degli animali alla macellazione
The light bulb was a three way GE Reveal bulb, made in China of course.You don't normally think of light bulbs except when they blow out. What could be simpler than changing a light bulb? A million jokes have sprung from that very assumption. Yet - it's a false one.D. calvo generalized gevrey classes and multi-quasi
To anyone who deals with lighting for a living, they realize the sheer complexity and variety of lighting conditions, equipment and consumer products available. For anyone who had to climb a ladder to replace a light bulb in a high ceiling, they will know firsthand how a simple act like changing a bulb can actually possess many dangers. But all the same, let's take a look at some of the dangers inherant in the seemingly innocent light bulb: Over Heating Light Bulbs Touching a halogen light bulb directly transfers body oil which deposits on the surface, and heats up under the hot glare.
Since halogen, xenon and fluorescent bulbs contain compressed gas, a break results in explosive decompression, sending glass shards everywhere. Who thought to wear safety glasses? You were just changing a bulb.
Now you don't need light, because you can't see. When a bulb's electricity pull exceeds the fixture's wattage capacity, the wiring runs hot. Longterm overheating disintegrates wiring, crumbling it, and exposing raw current. At this point the current can jump and create a spark that can catch fire, or pull even more electricity. Sparks also may jump from faulty fluorescent tube starters or ballasts. If your fixture emits a burning smell or sizzling sound, or other various pops or burnouts,cut power to that area, and either troubleshoot the junction box or get a professional electrician to do it for you.
Aside from its compressed gas issues, ballasts may contain PCB's, carcinogens which can cause reproductive, skin and liver disorders. Fluorescent tubes and Compact Fluorescent Lights CFL's contain mercury, must be disposed of properly, using airtight containers and other thorough hazard cleaning techniques.
Breathing mercury vapors from a broken tube can cause brain and kidney damage from mercury poisoning. Therefore proper disposal or recycling is called for, and worth researching more thoroughly. Of course, touching exposed pins in a loose tube socket can result in a four or five hundred volt shock.
This kind of shock makes a serious threat for the incautious. The simple act of replacing faulty bulbs presents numerous possible dangers.
First, light bulbs which have not cooled properly burn the fingers. Give them five or ten minutes. Using a ladder holds various dangers. Mispositioning or failing to lock it into place, makes an unstable platform.Light bulbs, no matter the type, are filled with inert gases, including argon, nitrogen, halogen, or xenon. These gases slowly replace the oxygen in the bulb, allowing the filament to glow.
Without oxygen, the filament would not burn, but with too much oxygen, it would burn up immediately. The inert gases maintain just the right amount, as well as creating a vacuum inside the light bulb.Auto ducking mixer
Pressure from the air outside the bulb must be met with strong glass, or the light bulb would cave in on itself. Poorly made light bulbs occasionally have thin glass, which can crack easily, while high quality or specialty bulbs often have thicker glass.
Once the glass cracks or develops any sort or irregularity, the outside air's pressure will cause a light bulb explosion. These irregularities or cracks can be caused by water, overheating, or oils. The most common type of light bulb to explode are halogen bulbs.
Because these bulbs can get much hotter than their incandescent counterparts, any oils on the glass bulb itself can cause the bulb to heat irregularly and explode. Care must be taken when installing and changing halogen bulbs; never touch the bulb itself with your bare hands.
A paper towel or thin cloth gloves will prevent any oils from your fingers from contact with the bulb, thus avoiding this type of explosion.
One of the most common explanations for light bulb explosions, usually with a standard incandescent bulb, is water. Old or cheaply manufactured bulbs are said to have poor quality seals, so condensation can begin to build up inside the bulb itself, which can eventually lead to an explosion.
Using high quality light bulbs in areas of high humidity, including outdoor lights, bathroom lights, and kitchen lights, is an easy way to avoid this problem. Even when a light bulb has a secure seal, explosions can happen due to water droplets landing on the light bulb when it is illuminated. This is due to the temperature difference between the hot light bulb and cold water; the cold makes the glass contract in a particular spot, which can lead to an explosion if it occurs quickly enough.
A particularly dangerous place for this is in fish tanks; metal halide or other extremely hot bulbs should be kept a few inches above the water in a fish tank, to avoid any stray splashes causing the bulb to explode. In general, keep light bulbs away from areas where water may be splashed, and this type of explosion can be avoided as well. Power surges have been known to cause light bulbs to explode. These can happen unexpectedly, particularly during a lightning storm. The extra power going to the light bulb causes it to overheat and explode.
Faulty wiring, including incorrect voltage, will have the same effect. Always use a bulb which has the correct voltage and wattage for its fixture; the wrong voltage can lead to power spikes, which have the same effect as a power surge. Both over and under volting can be dangerous for a light bulb. As a light bulb is used, the filament gradually burns, becoming weaker and weaker.
In rare cases, the filament can break and fly towards the glass light bulb, rather than simply snapping and remaining in the center of the bulb this is what usually happens when a light bulb burns out.Join us at 1 p. Learn more. How dangerous are these bulbs? What if one breaks?
Around the world, governments have passed measures to phase out incandescent light bulbs in favor of the more energy-efficient CFLs. It's true that CFL bulbs do contain a small amount of mercurysealed within the glass tubing, and it can be released as vapor after a breakage. See also: 18 ways to save on your utility costs. An article in the August official magazine of the Illuminating Engineering Society of North America concluded that a worst-case scenario of mercury exposure PDF from a broken bulb is equivalent to eating one serving of fish.
Mercury accumulates in small amounts in the bodies of fish. The committee said it didn't have enough data to assess the risk for children. Similarly, an online fact sheet issued by the government of Australia says that proper cleanup presented no significant health risk to children or pregnant women. Health officials advise certain precautions to minimize exposure.
What Causes Light Bulbs to Explode?
Among the steps recommended by the Environmental Protection Agency :. Also of interest: Affordable Utilities Now! You are leaving AARP.
Please return to AARP. Manage your email preferences and tell us which topics interest you so that we can prioritize the information you receive. In the next 24 hours, you will receive an email to confirm your subscription to receive emails related to AARP volunteering.
What Causes Light Bulbs to Explode?
They take longer to switch on. They can interfere with radios, cordless phones, and remote controls. They also contain mercury, a fact that causes no small amount of concern in light of how dangerous that substance is. Yet the amount housed in each bulb is very small, about 4 or 5 milligrams, which in volume is about the size of the period at the end of a sentence.
By comparison, old-style mercury thermometers contain about milligrams of mercury, an amount equal to the mercury found in CFL bulbs. Like batteries, used CFLs need to be disposed at a toxic waste depot rather than tossed out with the ordinary household trash. Because mercury is cumulative, this poisonous element would add up if all the spent bulbs went into a landfill. Instead, the mercury in dead bulbs is reclaimed at such depots and recycled.Light bulb exploding😱
These can be difficult to contain. The most important thing to remember is to never use a vacuum. A standard vacuum will spread mercury containing dust throughout the area as well as contaminating the vacuum. What you should do is:.Ombrellone push up a palo centrale ø 200cm
The account detailing her experience began reaching us in April in the form of the World Net Daily article quoted above. It was subsequently repeated in an article published both by Fox News and the Financial Post. All of these accounts drew their information from a 12 April article printed in the Ellsworth American, a newspaper published in Ellsworth, Maine. Bridges dropped a CFL bulb on the floor of her home is as follows:. Bridges knew when the bulb shattered that the mercury inside had spilled onto the carpet and needed to be cleaned up carefully.
She resisted the urge to vacuum, made some calls and got in touch with the state Department of Environmental Protection. So far, so good. She made the call and almost hit the floor herself.
She also talked to a local newspaper to warn people to think twice about buying the bulbs. DEP officials, meanwhile, tried to assure her there really was no need to spend any money or seal up the room. The DEP eventually did help her clean it up. They [later] removed part of the carpet, though officials say that was only necessary because the mercury sat for two months.
CFLs need to be handled with far more consideration than do conventional incandescent bulbs, if only because cleaning up a broken energy-saving bulb is a more involved process. Consumers should therefore exercise caution regarding where and how they install CFLs in their homes; they should be careful to not break these bulbs as they install and remove them and avoid putting them in lamps likely to be sent crashing to the floor by someone knocking them from a side table or tripping over electrical cords.
But they also work to save the environment by lessening greenhouse gases. If every American home replaced just one standard incandescent light bulb with a long-lasting CFL, the resultant energy savings would eliminate greenhouse gases equal to the emissions ofcars, according to the U. Energy Star program.Page 51
Australia has committed to a mandatory phase-out of incandescents by
- 7ay ennasr tunis
- Poodle patch rescue
- Pin drape
- Lg stylo 4 mobile networks greyed out
- Mamandige sex katha
- New prado 2020
- Diagram of laptop ports diagram base website laptop ports
- Lenovo t420 bluetooth driver
- Phone pinger
- Review of related literature about banana peel as fertilizer
- Crystals for brain tumors
- Diagram based 2007 buick regal wiring diagram
- Json schema validator java
- Sephora business model
- Spyderco para 3 m390
- Samsung ne594r0absr door removal
- Zip code validation reactjs
- G wagon lift kit old man emu
- Nya ninjago voice
- Arlington warrants list
- Colon cancer odor
- My car keeps jerking when i stop
- Real racing 3 vs asphalt 9