Extension leads with surge protection and interference suppression filters - preventing high-frequency interference on electronic devices
Socket strips with surge protection protect electronic devices from overvoltages and high current peaks in the household power supply system, which can be caused, for example, by switching operations or indirect lightning. A surge protector is designed to reduce overvoltages to a level that is not dangerous for the end device without destroying it. This depends, among other things, on the maximum surge current.
An interference suppression filter suppresses so-called high-frequency interference (HF interference) as best as possible. RF interference affects, for example, optical and acoustic disturbances, which can be recognised, for example, as picture flickering, noise or crackling. RF interference can also have an effect on DSL performance and leads to frequent disconnections and errors on the line.
For this reason, there are also surge protection extension leads that are additionally equipped with an interference suppression filter. These interference suppression filters prevent the high-frequency interference pulses from the network from reaching the connected devices and, conversely, interference from these devices from reaching the network.
How do interference suppression filters work in the extension leads?
An interference suppression filter reliably suppresses high-frequency interference by using special coils, capacitors and resistors and thus filters or prevents picture and sound interference.
Not every interference suppression filter is constructed in the same way and therefore does not have the same effect. The selection and correct combination of the components is decisive in order to achieve a good effect of the interference suppression filter. Above all, the capacitors and interference suppression coils are important.
