Analysis on the impact of the induced surface current for different grounding modes of the cable shielding layer

摘要

Grounding is one of the measures to reduce electromagnetic interference. Different cable shielded layer grounding methods are applied for different practice conditions. The variation of the induced current on the shielded cable layer is studied under different grounding methods (one-end grounding, two-end grounding equal-interval multi-point grounding) through using FEKO. The different grounding resistance values under two-end grounding methods are simulated too. At the same time, the relationship between current in the grounding resistance and the grounding methods are discussed. Some valuable conclusions have been achieved.