Finding Bounding Values for Disturbances Induced on Multiconductor Lines by an Electromagnetic Perturbation

The complexity of cable networks in industrial systems does not allow a precise evaluation of disturbances induced by an electromagnetic perturbation. The amount of data, and the quality of their theoretical and experimental determination are the reasons for that. That’s why, it’s more judicious to evaluate bounding signals. These bounding values will consist in a criteria to evaluate the security of the systems in terms of EMC. Starting from electromagnetic topology formalism for cable networks, we introduce calculation of norms for multiconductor transmission lines. The first calculations presented are completed by a circuit theory approach to give more realistic results in the low frequency domain.