Attain Contact Voltages for Designing Secure Earthing Techniques

Determine 3 beneath gives a daily contact voltage plot the place contact voltages are proven for all the areas, even the place it might not be attainable for an individual to keep up a correspondence with the earthing system. Discover that the utmost contact voltage of 270 V (grossly inflated) is on the plot picture’s North East and South West far corners.

Determine 4, alternatively, is a attain contact voltage plot the place contact voltages on the bottom floor are proven provided that they’re inside attain distance. The utmost contact voltage, on this case, is 118 V.