Connecting devices. Safety requirements for screw-type and screwless-type clamping units. Part 2. Particular requirements for clamping units for conductors above 35 mm2 up to 300 mm2 (included)
System of product quality indices. Pressure gauges, vacuum gauges, pressure-and-vacuum gauges, brought gauges, head gauges, draught-and-head gauges. Nomenclature of indices
