Test methods specific to filling compounds of electric cables. Drop-point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at temperature 23 C. D.c. resistivity at temperature 23 C and 100 C
United system of corrosion and ageing protection. Corrosion resistant steels and alloys. Methods of accelerated tests for resistance to pitting corrosion
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