Making a High Voltage Fuse

hi think I'm getting PTSD we all know what a fuse is it's a piece of wire that melts open under high current and let's not get bared and when it open when it burns it cuts your circuit open stopping the flow of high current and protects your circuit against fire and such and every one of them has a different current rating depending on how much current your circuit normally needs and at what level you want them to blow open and protect your circuit so these are short circuits with close to zero volts across them then why the hell do they have voltage ratings like this is rated for 250 volts it's still a short circuit it's not like if I place it on a circuit with a 2,000 volt Supply there will be 2,000 volts across this in fact let's try it with my my high voltage Transformer these Transformers are very dangerous and one of them has killed me once before and we don't want that to happen to anyone else so don't here is a 10 Ohm resistor as my circuit series with the fuse connected to the 2,000 volt transformer and so the fuse blows open quickly protecting my circuit like this oh sh ah look at this even the glass cracked and broke under extreme heat the voltage rating is not about the normal operating mode it's for when the fuse breaks open and we want it to reliably open we know a strong high voltage can jump the Gap creating an arc keeping the circuit closed like we saw so in order to make sure a fuse or breaker actually opens it needs to be made differently otherwise the arcs never die and that's not safe but you could be safer using my sponsor nordvpn listen nordvpn has a 30-day money back guarantee so you can start using it for a week on your travel while still having the opportunity to use their guarantee although I'm sure you'll like their service so much you'll keep using it and nordvpn will protect you on so many different fronts it's not just the data encryption service to protect your sensitive data and connection from your computer to there are so many 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some very thin wire around the nails and we turn it on oh oh fire oh oh sh no no no no no in case of electric fire never try to pull it out with water it creates shorts and can cause electrocution always try to cut electricity first if possible then use non-conductive fire extinguishers made for this purpose I guess this is why they use some sort of cover or glass for the fuse so the molten metal and arcs don't start a fire I have a plastic bottle let's try this one we just put the nails and the wires inside the cup here's my fuse let's try it out here we are and we turn it on oh [Music] sh well it took a while but it opened and the fire was contained in here so safer what if we vacuum in here so that there is no ionized air to help create arcs here I'm holding my super thin piece of wire here put it inside our vacuum chamber connect the vacuum pump now hopefully there is some good amount of vacuum and we turn the power on oh my god did you see [Music] that look at this nonsense oh my God that was a failure it's easier to create much longer Ox with much lower voltage in vacuum I suspected that but not that much it's interesting because under normal atmospheric pressures the 2,000 volts can only start jumping under 1 mm Gap but as we saw it jumps well over 10 cm in partial vacuum this new Transformer seems to be a little bit weaker than the old one I had which I broke I should get a stronger Transformer me not you okay you don't need to acquire anything that has a resemblance to this of course after it starts it can extend to a longer distance if the source is powerful enough I suppose instead of a vacuum you could replace the air inside the fuse container with some non-conductive noble gas like argon would that work I don't have argon so I'm thinking if I can make it happen reliably in air it would be good like here I'm taking a very long thin wire if you can see it so that hopefully it can fall away quick stopping the arc it did work I think I'm on to something maybe I can make it even quicker okay here me out I'm running a very thin fuse wire between these two nails and I have two elastic bands that are pulling this wire apart keeping it at a tension in the middle so when the fuse blows open these elastic bands will pull the wires apart quickly and hopefully extinguish the arc as soon as possible the fuse is shorting the 2,000 volts and now we shall turn it on look this is exactly how you expect a fuse to behave unlike the last time that the entire wire just evaporated this time it just broke straight in the middle the rest of the wire is intact and there was no huge arcs either awesome so any mechanism that quickly breaks and pulls wires apart should be very good for high voltage in fact the microwave oven that I pulled the Transformer out of has its own fuse where did I put it I put my oven parts in my cookie box where is the fuse oh there it is here's the fuse It looks interesting well protected in a plastic is it a box can I open it oh look at it there is a more regular looking fuse inside the plastic cover it is a 5,000 volt 0.7 amps fuse from my extensive experience with high voltage fuses oh the Gap doesn't look far enough to avoid big arcs let's try it out but this is interesting see the fuse wire on one side is a spring pulled open keeping the fuse wire under tension so when the fuse breaks open the spring pulls the contacts apart eliminating the arc like what I did with my elastic bands okay the fuse now is shorting the 2,000 volt output let's see if it works as advertised well I mean the fuse wire is completely eradicated including the spring and everything was there a point to the spring but it's interesting for such a small Gap there was almost no Arc is there a special gas in there I can't find anywhere if there is a special gas in these glass tube fuses somebody let me know but in conclusion that's why every fuse has a voltage rating use it outside the rated voltage and there will be death and destruction so mind the ratings or else on

Channel: ElectroBOOM

Views: 1,380,522

Keywords: educational, electrical, ElectroBOOM, science, electronics, engineering, entertainment, equipment, measurement, experiment, mehdi, mehdi sadaghdar, arc, mishap, physics, Sadaghdar, test, tools, circuit, funny, learn, shock, spark, discharge, fuse, circuit breaker

Id: SVepW3f_V-M

Length: 9min 33sec (573 seconds)

Published: Tue Dec 19 2023