In the paper, five global and synthetic sizes are proposed for the earth
grounding, predestined to represent distinguishing criteria and to justify
the chosen solution: the footprint area, the dispersion surface, the
metal part mass and the earth grounding volume have technical character,
while the investment cost has an economic nature. Resuming the
sizing relationships of earth grounding gives the opportunity to develop
a new nomogram for calculating the dissipation resistance of a single
vertical earth grounding as well as highlighting the quality and quantity
of its specific dependencies. Processed forms are presented in the paper
as well for the use coefficients of the multiple earth grounding, defining
the determination of the electrode number which minimizes at
least one of the proposed global sizes as the main target of the study