Electrical power engineering

Grounding and electromagnetic interference



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  3. Grounding and electromagnetic interference

Grounding and electromagnetic interference

We offer services in the field of earthing systems, interference and line parameter calculations and support our clients in the following areas, among others:

  • Design of grounding systems
  • Evaluation of the ohmic interference on overhead line masts, cable sleeves and other high-voltage technology systems
  • Inductive interference analysis of pipelines, telecommunications lines, etc.
  • Calculation of line parameters of overhead lines and cables (including untwisted and asymmetrical)
  • Calculation of the chain conductor and the earth wire or cable shield reduction factors, even in complex arrangements such as discontinuities (e.g. overhead line on cable) and in parallel systems

We offer numerous measurements to support this, such as:

  • Measurement of the specific earthing resistance using the four-probe method (Wenner, Schlumberger, dipole-dipole etc.) according to EN 50522 or IEEE Std. 81, if necessary with inversion to multi-layer models
  • Measurement of earthing impedance, earthing voltage and compliance with touch voltages at earthing systems such as substations, power plants and overhead line pylons according to EN 50522 or EN 50341
  • Measurement of the line impedances of overhead lines and cables