Specification for electroacoustics. Instruments for the measurement of sound intensity. Measurement with pairs of pressure sensing microphones— 30 стр.
Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 1: Fluid-filled cable terminations; German version EN 50299-1:2014— 14 стр.
Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: Dry-type cable terminations; German version EN 50299-2:2014— 17 стр.
Railway applications - Power converters installed on board rolling stock - Part 1: Characteristics and test methods (IEC 61287-1:2014) (english version)