Ключевые слова:
Electrical testing|Resistance measurement|High-voltage tests|Grades (quality)|Watertightness tests|Earthing|Safety measures|Corrosion tests|Clearance distances|Fire tests|Leakage paths|Short-circuit current tests|Filaments (lamps)|Alternating current|Rated voltage|Electric convertors|Direct current|Type testing|Marking|Performance|Dielectric strength|Electronic equipment and components|Testing conditions