Earthing

Guides to earthing rods, electrodes, strips, counterpoise and tower footing resistance.

October 23, 2026
Earth conductors clamped to the foot of a lattice transmission tower leg and running into the concrete foundation

Tower Footing Resistance: How to Measure It and Bring It Under 10 Ohms

Tower footing resistance: why the limit is 10 ohms, how to measure it, and which remedies to try first, with IS 3043 and POWERGRID clauses.