Ключевые слова:
Electric cables, Insulated cables, Cable sheaths, Sheathed cables, Electrical insulating materials, Solid electrical insulating materials, Electrical insulation, Optical fibres, Test methods, Filling, Drop-point determination, Separation, Oils, Mechanical testing, Heating tests, Low-temperature testing, Brittleness, Acidimetry, Acid number, Chemical analysis and testing, Corrosion tests, Electrical testing, Permittivity measurement, Resistance measurement, Direct current, Electrical resistivity, Temperature, Communication equipment