Connect all incoming metallic utility pipes and structural frames to the Main Earthing Terminal.
The conductor that connects the main earthing terminal of an installation to the earth electrode. ss 551 code of practice for earthing
The foundation of any earthing system is the ground itself. SS 551 provides detailed guidance on measuring soil resistivity using the Wenner four-probe method, as illustrated in its figures. This measurement is crucial as the resistivity of different soil types (e.g., wet organic soil vs. dry sand) varies significantly, directly impacting the performance of the earth electrode. The standard includes a table with examples of soil resistivity ( (\rho) ) in ( \Omega \cdot m ) for various soil types, such as: Connect all incoming metallic utility pipes and structural