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Home » Technical guide » Electromagnetic compatibility (EMC)

Electromagnetic compatibility (EMC)

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Understanding EMC involves the analysis of electromagnetic pollution between a source of disturbance and its victim.


Electromagnetic interference is emitted by a source polluting a victim. Electromagnetic interference is transmitted by a process known as coupling. An EMC problem occurs when the tree elements source, coupling and victim are evident. To obtain a good EMC we simply need to eliminate one of the three elements or reduce its effect.

Metalic cable trays with excellent electrical continuity which are integrated into an installation's equipotential earthing network reduce the effects of coupling and therefore improve an electrical installation's EMC.


- Its open structure makes it easy to ensure correct separation by visual inspection.
- Its easy installation and metal structure guarantee excellent electrical continuity in all cases: coupling, bends level changes, crossing walls, etc.
- Its open structure can reduce crosstalk.


* The EN 50174-2 standard specifies how far cables must be kept apart. This depends on the type of data cable, the number of power cables and the type of cable tray. Otherwise, the distance of 20cm provides a simple and sensible rule of thumb. For precise details, please contact our technical support service.