Comparison and discussion on potential mitigating measures regarding inductive interference of metallic pipelines

Abstract

This paper describes the actual problem of inductively interfered pipelines due to traction and short circuit currents of electric railways. At first a brief overview about calculation-formulas and standards is given. Furthermore the most important limits for induced pipe potentials regarding short time- (short circuit currents) and long time interference (normal operation traction currents) of the electric railway are mentioned. In a next step the effectiveness of potential mitigation measures as earthing systems, isolating joints and compensation (reduction) conductors are shown and described mathematically.