Lightbulb burst - why is that?

Bursting bulbs not only scare you away, but also raise the question of how this could happen. What reasons are responsible for when a bulb bursts, and what dangers can be caused by the bursting, read in this post.

Reasons for the bursting of a light bulb

The traditional bulbs are already banned since 2012, but they are still found in many household lamps. Often simply because you have a rather large supply of light bulbs in the house, or the respective lamp only very rarely turns on.

Why a light bulb can burst can have several reasons:

  • Oxygen has entered the interior of the bulb
  • a short circuit in the lamp (rather rare)
  • high lamp age

Oxygen inside the bulb

Basically, classic bulbs are evacuated, so evacuated. It may also be that the oxygen that would otherwise be inside the bulb is replaced by another gas, usually CO.

The absence of oxygen is intended to prevent the filament contained in a classic incandescent lamp from burning out (each combustion requires oxygen, to be able to take place, it lacks, no combustion takes place).

If the pear is damaged (cracked) or badly processed, oxygen can get inside, the filament burns immediately. The resulting gases can expand very quickly.

Short circuit at the lamp

Electrical errors in the lamp may occur, but are relatively rare in practice. The suspicion that more than just the bulb was broken, then turns, even if a new bulb in the same lamp after screwing breaks or explodes.

In this case, you should no longer take the lamp in operation, and measured by a specialist electrician accordingly and let the error search. In such case, it is best to leave the fuse belonging to the corresponding lamp switched off.

High lamp age

A lamp may "burn in" or, over time, damage the glass due to the high heat generated. In most cases, the filament will simply break and the lamp will not burn.

By yielding the glass of the pear, it can also happen that the bulb explodes in some cases.

Tips & Tricks

There is no danger from a conventional exploded bulb. However, with energy-saving lamps, this looks different: in this case, you have to proceed very carefully because of the mercury contained. What else you need to look out for, read in this post.

Video Board: Why light bulbs blow | Mark Wood