Descriptors | Withstand voltage, Electrical insulation, Protected electrical equipment, Impulse voltages, Electrical installations, Dielectric strength, Factor of safety, Surge protection, Electrical equipment, Mathematical calculations, High-voltage equipment, Statistical distribution, Coordination, Stress, Overvoltage, Clearance distances, Three-phase current, Overhead power lines, Statistical methods of analysis, High-voltage installations, Classification systems, Selection, Rated voltage, Overvoltage protection |