Today I start with a few picture. Our product is charged by a external power supply.
For a CE Test there is a Burst and Surge test obligatory. What is this ?

Basically it is really simple. A test machine generates high voltage pulses which are conducts to the cable of the power supply. There are two things, which shouldn't happen then. The power supply shouldn't break and
the voltage burst shouldn't go into the AC Line.

When the burst reaches the AC Side from the power supply and goes into the AC grid it can disturb other machines or even kill them. The power supply itself can be destroyed and burn. You don't really want this.

So, how can this happen in a normal household, that you can put a spark or a voltage burst on the cable.
If you walk with rubber shoes over carpet or something, you get charged with really high voltage.

Back to the supply. There is also another test. In this test, we send a burst from the AC Side into power supply,
to see what's happen. It should not be broken. You shouldn't see anything on the output.

A Surge test you can compare with a thunder which hits your house. Your machines are not directly hit, but surely broken too. What's happen there is that there will be a very high inductive field for a very short moment. This can destroy the electronic too. In this test this will simulate with some special generator.


In our case, the power supply faild already the Burst test. Even it has a CE sign.