Construction of a low-ohmic coaxial resistor made of conductive fabric

Abstract

In this paper the analysis, design, construction and validation of a prototype of a low-ohmic coaxial resistor made of rip-stop conductive fabric to measure 8/20 μs lightning current impulses, is described. To understand the limitations and variations of the impedance characteristics of the tested conductive fabric, the measured results were contrasted with a Rogowski coil and a calibrated Haefely coaxial cylindrical shunt. From the results obtained, it can be concluded that the studied rip-stop conductive fabric could be used, as a low resistive material, in the construction of coaxial low-ohmic resistors. Additionally, the experimental set-up can be used to characterize such textiles under different lightning-like current amplitudes.