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