Shielding principle

Shielding principle "low-frequency alternating electrical fields
Low-frequency alternating electrical fields dispose of a source, an energised cable for example, and of a field-ending, usually surfaces with grounding potential (0V). Thus the field is regional When field producing circuits are layed in walls, ceilings and floorings and measurements concerning installation and circuit are not applicable there is still the possibility to shield affected areas by laying electrically conducting wallpapers, fleeces and emulsion paintings and professional grounding.

Shielding principle low-frequency alternating magnetic fields (NF)
Low-frequency magnetic fields result from flowing electricity in cables, circuits and electrical consumers. In our cables shielded against alternating electrical fields the single conductors are additionally stranded reciprocally.
This twisting secures an even load of the phases/neutral conductors and an additional reduction of the alternating magnetic fields.

Further protective measures:
-disconnection of the consumers
-avoidance of equalising current
- distance to radiation sources
- even load and close guiding of phases/ neutral conductors

Shielding principle high-frequency electromagnetic waves (HF)“
High-frequency electromagnetic waves can be shielded either by reflection at highly electrically conducting surfaces (mostly metallic) or by absorption in adequate materials (mostly building material).

Shielding due to reflection
The arriving electromagnetic wave is reflected by highly electrically conducting materials such as paints, fleeces, fabrics and wallpapers  according to the laws of optic. It is comparable to the reflection of sunlight in a mirror.

Shielding due to absorption
The energy of the high-frequency electromagnetic wave is absorbed and converted into heat. Massive construction materials like concrete, brick and brickearth dispose of distinctive absorbing characteristics whereas light building materials like wood and many insulating materials have bad absorbing qualities.