Insulating and sheathing materials of electric cables. Common test methods. General application, Measurement of thickness and overall dimensions. Tests for determining the mechanical properties, Section 1: Measurement of thickness and overall dimensions - Tests for determining the mechanical properties— 28 стр.
Mining type flameproof supply and control units for use on systems up to 1100 V, Specification for air-cooled transformers to power drilling machines— 26 стр.