Did you know that inside a common incandescent lamp there’s no vacuum but rather nitrogen and argon under slight pressure, and in the base of the lamp there is a fuse that interrupts the electricity flow to the filament as soon as it breaks?
So, this fuse also protects against the bulb exploding. If you’ve ever had bulbs explode, it means you ended up with fuseless bulbs, as these are sometimes found. The explosion is caused by an electrical arc which heats up the gas inside, making it expand and causing the bulb to burst loudly. An arc occurs when the filament breaks and under fortunate circumstances, it persists long enough to heat the gas. Initially, when the bulb is switched on, the current is higher due to transitional processes, which finally breaks the filament, followed by the arc and the burst.
It’s also interesting to note that the temperature of the filament inside the bulb is 3000 degrees. A gas absorbent is applied to the filament.
It’s very interesting to sequentially watch videos about light bulb production abroad and in Russia:
Hi, I'm Rauf Aliev. 