Earthing Design & Ground Sizer

Earthing Design & Ground Sizer

Electrode Configuration Type: GI Pipe Electrode (40mm Dia, 3.0m Long) GI Plate Electrode (600mm x 600mm) Copper Plate Electrode (600mm x 600mm) Chemical / Gel Electrode (80mm Dia, 3.0m Long)

Soil Type / Expected Resistivity: Moist Clay / Alluvial Soil (20 Ohm-m) Garden Soil / Clayey Loam (50 Ohm-m) Sandy Clay / Dry Loam (150 Ohm-m) Dry Sand / Gravel (800 Ohm-m) Rocky Soil / Granite (2000 Ohm-m) Custom Soil Resistivity (Enter Below)

Custom Soil Resistivity (Ohm-meters):

Target Ground Resistance: Substation Neutral / UPS (Less than 1.0 Ohm) Solar / EV / Main LT Panel Grounding (Less than 2.0 Ohms) Home Earthing / Gen. Equipment (Less than 5.0 Ohms) Lightning Arrester Earth (Less than 10.0 Ohms) Custom Target Resistance (Enter Below)

Custom Target Resistance (Ohms):

Design & Validation Results

Selected Soil Resistivity: 0.0 Ohm-m

Single Electrode Resistance: 0.0 Ohms

Min. Required Earth Pits

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Notes:

• The Spacing Constraint: To prevent mutual overlapping of electrical fields, IS 3043 dictates spacing pits at least **twice the electrode length (minimum 6 meters)** for pipes/chemical rods, or 5 meters for plates.
• Plate Resistance Equation: Both GI and Copper plates (600mm x 600mm) utilize the standard geometric contact area formula: R = rho / (2.4 x w), where w = 0.6m. Copper provides superior corrosion lifespan and fault handling on-site.
• Home Earthing Best Practice: Standard home body safety targets < 5.0 Ohms, while high-demand loads like EV chargers or solar inverters require < 2.0 Ohms. Every home should have at least two parallel-connected earth pits for neutral/body safety.
• Feasibility Limit (10 Pits): If calculations show that more than 10 individual pits are required, it is flagged as **Too High / Unfeasible**. A linear layout of 10+ pits is physically impossible on standard plots. Switch to Grounding Grid (Earth Mat) or treat soil chemically.