CPC Subgroup
G01R 27/20 Measuring earth resistance; Measuring contact resistance, of earth connections, e.g. plates
Full Title
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom > Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00) > Measuring earth resistance; Measuring contact resistance, of earth connections, e.g. plates
1 direct subcode
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