Cable ducts are constructive empty spaces for laying cables. They can be laid on the wall, on ceilings or in or on the floor. They are angular empty conduits, which are provided with duct covers after cable laying. The cable ducts are available in different nominal widths and depths. They can be equipped with separators, which ensure clearer laying without mutual interference. Cable ducts are available in metallic and non-metallic versions.
In floor systems, a distinction is made between underfloor installation trunking and above-floor installation trunking. Underfloor installation trunking is fixed to the concrete floor and embedded in the screed. Duct access and cable installation are accomplished through tanks located either below the screed, the underfloor tanks, or above the floor as protruding units, the on-floor tanks. The systems for on-floor installation are designed to be very flat and have a slope towards the room. In addition, they are so stable that you can step on them. In order to have a harmonious image, the on-floor channels are covered with the carpet of the room. Both systems, the underfloor and the upfloor system, are made of metal and must be neatly grounded.
There is an unusual wealth of variants in cable ducts for wall, parapet and ceiling mounting, in terms of dimensions, materials, web type, type of box attachment, cover and, last but not least, color. For the metallic design alone, there is a choice between V2A steel, sheet steel, aluminum and spring steel, which not least has an influence on the electromagnetic interference. These metallic cable ducts act as additional shielding and, if grounded correctly, ensure low- impedance integration of the data sockets into the grounding concept.
In addition to metallic cable ducts, plastic ducts are available in polyvinyl chloride( PVC) and halogen-free plastic. These cheaper alternatives are easier to process, but they have the disadvantage that they cannot be grounded and they therefore do not have EMC-influencing properties.
The wall and parapet ducts are available in many dimensions. The standard dimensions are between 80 mm and 220 mm for the duct width and between 60 mm and 120 mm for the duct depth.