Electrical fuse burning with increasing current

A video I made with my colleague in NIE, demonstrating the well known, common and yet rarely seen phenomenon of an electrical fuse doing its job.

Feel free to use it for educational purposes :)

Category:

Howto & Style

Tags:

• electricity
• fuse
• current
• ammeter
• science
• physics
• singapore

[prornetheus]

awesome demostration of how a fuse works. but what program do you use to picture in picture?

[guayhansen]

I used Ulead Videostudio.

[joeylawn36111]

If it was rated at 600mA, why did it blow at 1.5A???

[guayhansen]

That is a good question! We were stumped at first but a simple search via Google and you'll realise fuses have built-in allowances in them to prevent 'unwanted' burning due to spikes in current flow. Hence it is important to choose the correct type (and not only rating) of fuse to protect your equipment. Apparently the fuse we use have rather large allowance of 1.5x the rated value.

[YCbCr]

What was the rating if you remember?

[guayhansen]

It is rated 0.6A if i recall correctly.

[VideyoJunkei]

a fuse will blow at its rated current, but it will take some minutes...increasing current shortens the time very fast!

[imfree707]

Aah nice, a slow kill!

[qazxsw21000]

@StephenKuma I is probably the only thing designed to fail under certain conditions. You can overtake it by voltage or current. If you exceed any of these, it will break down inside. It is used to protect anything inside a circuit.

[RODALCO2007]

Great video

[LauxHawk]

Hello,

I am new to electronics. I am working on making a 12V/5V combo power supply. I need a 5A fuse. I found one on mouser. Do you recommend I use a fuse block or a fuse clip? How do I hook my power wire up to the fuse clip?

Thanks.

[sabrinasita]

can you please send me the download link??

[Corey497]

slo-blo

[XCar15]

What voltage power source was this connected to? Great video by the way