Connecting devices for low-voltage circuits for household and similar purposes. Particular requirements for connecting devices as separate entities with screw-type clamping units— 28 стр.
Connecting devices for low voltage circuits for household and similar purposes. Particular requirements for connecting devices as separate entities with screwless-type clamping units— 24 стр.
Connecting devices. Electrical copper conductors. Safety requirements for screw-type and screwless-type clamping units, General requirements and particular requirements for clamping units for conductors from 0,2 mm$u2 up to 35 mm$u2 (included)— 32 стр.
Connecting devices. Electrical copper conductors. Safety requirements for screw-type and screwless-type clamping units. Particular requirements for clamping units for conductors above 35 mm$u2 up to 300 mm$u2 (included)— 22 стр.
Water quality. Biological classification of rivers. Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates— 16 стр.