Electrical installation`s e.g. non-electrified line, electric voltage characteristics determining method, involves determining characteristics from two electric currents at terminals of respective impedance types

摘要

The method involves allowing contact between an electrode associated to an electric circuit, and a point of an electrical installation. An electric current established due to the contact is plotted at terminals of one impedance type. Electric voltage characteristics of the installation are determined from change of electric current at terminals of another impedance type due to the contact, and characteristics of the plotted current. An independent claim is also included for a device for determining the electric voltage characteristics of an electric installation.