Achieving Sub-Ohm Grounding Resistance in Heavy Industrial Substations When engineering large power stations and grid substations, there is zero margin for error. Under standard Indian industrial codes, the maximum allowed earth resistance for major power installations is strictly capped below 0.5 Ohms. Hitting this ultra-low impedance baseline requires high-conductivity materials and robust horizontal grounding grids. Our heavy-duty Galvanized Iron (GI) Earthing Strips are engineered precisely to carry these high fault-current loops safely to ground without excessive thermal expansion or conductor degradation. Don't let low-grade materials compromise your grid certifications or trip times. Build your foundation with uniform, certified grounding components directly from our factory floor. 📞 For tier pricing and standard material dimension sheets, connect with Atul Casting & Metal Works at +91 9873361672. Proudly serving the Indian electrical industry from Anand Parvat Industrial Area, New Delhi for over 55 years.