Earthing SystemsTotal Earth Fault Loop Impedance Zs = Ze + R1 + R2 for TN-S and TN-C-S Earthing ArrangementskeliandpartnersJune 12, 2020June 7, 2020 by keliandpartnersJune 12, 2020June 7, 202001816 Total Earth fault Loop Impedance for an installation connected to a TN-S and TN-C-S earthing arrangements: this video shows drawings to aid with City and...