Resistance-to-earth of a single circular buried bare-conductor ground ring from soil resistivity, ring diameter and burial depth โ the same BS 7430 ring formula used by the full Earthing Grid Design calculator, as a quick standalone single-ring check.
BS 7430:2011 single-ring electrode resistance formula
Generated
For preliminary engineering use only โ always verify results against project-specific standards and a qualified engineer's review before use in a real design.