Ключевые слова:
Electric insulators, Electrical insulation devices, Ceramics, High-voltage equipment, Hollow, Switchgear, Electric control equipment, Rated voltage, Frequencies, Design, Pressure, Bending stress, Loading, Classification systems, Type testing, Pressure testing, Bend testing, Testing conditions, Samples, Verification, Dimensional tolerances, Roughness (surface), Marking, Certificates of conformity, Tolerances of position, Tolerances (measurement), Mathematical calculations