Other types of gas discharge tubes though CAN explode. For example a 100W High pressure mercury "dusk to dawn" yard light, has a tube MUCH smaller than a standard 15W fluorescent tube, while being energized with many times the number of Watts. The presure in one of these also starts at a low pressure like a fluorescent tube, their pressure well excedes air pressure after they warm up while running at their designated power level. If after they've warmed up they are broken they will explode.
Any loud pop you hear will not be an explosion, but rather an implosion. The air will rapidly rush in to replace the very low pressure gas inside. Unlike a CRT though the vacume isn't so strong that an implosion will shatter the whole tube. Instead it is likely to just break the glass near where the whole was made.
Also while the plasma heats the gas and causes it to increase in pressure slightly, it will NEVER excede air pressure, because the gas pressure is so low to start with.
Fluorescent tubes are at very low pressure, almost a vacume. Not low enough to make an electron beam but no gas several feet long tube would glow at a couple hundred volts if the gas was not at a very low pressure. The waving plasma beam inside only momentarilly causes uneven heating, but on average it touches all parts of the tube. Also cracking the glass will not blow the tube, just leak the gas. For an explosion you need to have a significant OVERPREASSURE, but this tube is very LOW presure.
Thanks AAVista , that other people will learn for new beginners go buy new tube, switch on and watch it till the tube die LoL. This tube is effected by automatic ballast coke without starters, if it has starters it will be flashing tube all day TuT?
After that sort of burn out, if the tube ever exploded, if you don't high-tail your sorry ass away, fragments of the glass will be sent flying at your face at lightning-quick speed, inflicting serious injuries and even polking your eyeballs blind! Worse! Toxic gasses that emitted in the tube can make you VERY SICK if exposed to them! Never breathe any air or gas within the site of a blown fluorescent tube!
When I was 9 years old and I lived in Florida, I was one afternoon at Biscayne Gardens Elementary, I heard rumors from my classmates that when something like this happens to a fluorescent tube that sometimes they may even explode. One of the light fixtures was flickering and flashing the same way that day. The next day a classmate gave me word that the tube had expldoed internally. When I went into the classroom, the tube was warped at one end.
Flourescent lamps burn out for a different reason than incandescents. They leak and the increasing air pressure makes them into linear plasma globes before the pressure is so high that a plasma arc can't be started. A filament burnout is no reason for them not to work (most portable flourescent lamps don't use the filament for heating at all and just use them as electrodes and cold cathodes are called that because there is no filament at all). An incandescent filament simply breaks.
Yes the filament welded together so it where small glass as well melted it and over heat will be orange fired gases. NOTE: if keep doing like that till go out is finally inside glass where hold filaments will snapped off inside, WARNING it very very rare tube can dropped off if the tube is cracked when cooled and take care how to handle it. REMEMBER older tube cn be hot WEAR GLOVES AND protect glasses you worn it before replacing new ones.
somersetman, thank you for that tip off on the possibility of light tubes like this one going ka-blowey when burning out like this! The sudden temperature changes from that flickering can crack the tube and when there's too much pressure... BLAMO! It's better to immediately replace the bulb before you suck in poison and get pricked by tube shards in your face if it blows!
heh i like the 96'' inch ligh bulb burning out like that... you can see the bolt inside the bulb twisting, look like it's cooking inside the black pot
That fixture sucks. It seems that arc current can rise to very high levels. In addition it acts like the two 40W tubes are connected in series, so they cannot be operated independently.
not really.... if you switch the 2 tubes to around like the top tube on the bottom and the bottom tube on top... one tube will stay lit while the other is flicering and burning out and the other one will stay lit
Other types of gas discharge tubes though CAN explode. For example a 100W High pressure mercury "dusk to dawn" yard light, has a tube MUCH smaller than a standard 15W fluorescent tube, while being energized with many times the number of Watts. The presure in one of these also starts at a low pressure like a fluorescent tube, their pressure well excedes air pressure after they warm up while running at their designated power level. If after they've warmed up they are broken they will explode.
BankaiIchigo12345 9 months ago
Any loud pop you hear will not be an explosion, but rather an implosion. The air will rapidly rush in to replace the very low pressure gas inside. Unlike a CRT though the vacume isn't so strong that an implosion will shatter the whole tube. Instead it is likely to just break the glass near where the whole was made.
Also while the plasma heats the gas and causes it to increase in pressure slightly, it will NEVER excede air pressure, because the gas pressure is so low to start with.
BankaiIchigo12345 9 months ago
Fluorescent tubes are at very low pressure, almost a vacume. Not low enough to make an electron beam but no gas several feet long tube would glow at a couple hundred volts if the gas was not at a very low pressure. The waving plasma beam inside only momentarilly causes uneven heating, but on average it touches all parts of the tube. Also cracking the glass will not blow the tube, just leak the gas. For an explosion you need to have a significant OVERPREASSURE, but this tube is very LOW presure.
BankaiIchigo12345 9 months ago
wow you are insanely boring.
xunnad 10 months ago
@xunnad, so are you.
suzukir123 9 months ago
Very cool-looking stuff. Great music to accompany it, too, somehow the vibe matches even if the lyrics don't... Love watching weird stuff like this.
JonasClark 1 year ago
Man, that's crazy. I have seen worse with fluorescent bulbs burning out... but that was cool. There needs to be more videos of this.
suzukir122 2 years ago
Thanks AAVista , that other people will learn for new beginners go buy new tube, switch on and watch it till the tube die LoL. This tube is effected by automatic ballast coke without starters, if it has starters it will be flashing tube all day TuT?
colinward007 2 years ago
Remember that includes between 125 watts (8 or 10 feet long) to 8 watts (1 foot tube) applies that too., even 4 watts tube.
colinward007 3 years ago
After that sort of burn out, if the tube ever exploded, if you don't high-tail your sorry ass away, fragments of the glass will be sent flying at your face at lightning-quick speed, inflicting serious injuries and even polking your eyeballs blind! Worse! Toxic gasses that emitted in the tube can make you VERY SICK if exposed to them! Never breathe any air or gas within the site of a blown fluorescent tube!
AAVista 3 years ago
When I was 9 years old and I lived in Florida, I was one afternoon at Biscayne Gardens Elementary, I heard rumors from my classmates that when something like this happens to a fluorescent tube that sometimes they may even explode. One of the light fixtures was flickering and flashing the same way that day. The next day a classmate gave me word that the tube had expldoed internally. When I went into the classroom, the tube was warped at one end.
AAVista 3 years ago
Flourescent lamps burn out for a different reason than incandescents. They leak and the increasing air pressure makes them into linear plasma globes before the pressure is so high that a plasma arc can't be started. A filament burnout is no reason for them not to work (most portable flourescent lamps don't use the filament for heating at all and just use them as electrodes and cold cathodes are called that because there is no filament at all). An incandescent filament simply breaks.
RyuDarragh 3 years ago
Yes the filament welded together so it where small glass as well melted it and over heat will be orange fired gases. NOTE: if keep doing like that till go out is finally inside glass where hold filaments will snapped off inside, WARNING it very very rare tube can dropped off if the tube is cracked when cooled and take care how to handle it. REMEMBER older tube cn be hot WEAR GLOVES AND protect glasses you worn it before replacing new ones.
somersetman 3 years ago
somersetman, thank you for that tip off on the possibility of light tubes like this one going ka-blowey when burning out like this! The sudden temperature changes from that flickering can crack the tube and when there's too much pressure... BLAMO! It's better to immediately replace the bulb before you suck in poison and get pricked by tube shards in your face if it blows!
AAVista 2 years ago
I have seen this! Some NEW tubes will also have that spiral line on one side, for a while...
VideoJunkei 4 years ago
heh i like the 96'' inch ligh bulb burning out like that... you can see the bolt inside the bulb twisting, look like it's cooking inside the black pot
SpiritsoftheWolf 4 years ago 2
MY VIDEO was quite similar with urs.
a46152417 4 years ago
That fixture sucks. It seems that arc current can rise to very high levels. In addition it acts like the two 40W tubes are connected in series, so they cannot be operated independently.
temonddmeg 4 years ago
not really.... if you switch the 2 tubes to around like the top tube on the bottom and the bottom tube on top... one tube will stay lit while the other is flicering and burning out and the other one will stay lit
SpiritsoftheWolf 4 years ago
The worst that will happen is the lamp will lose vacuum, and yes ALL F96T12 fixtures do this!
RudyMe 4 years ago
what kind of ballast was in this light, magnettic or electric???
harmack1 4 years ago
They used to do that on the trains over here, before they updated all of them, the light goes in waves, old slam door trains.
FoxTechno 5 years ago
nice recording of the light burning out!
Gnildir 5 years ago