normally energised
21Stockbridge damper — Stockbridge dampers on an overhead power line A Stockbridge damper is a tuned mass damper used to suppress wind induced vibrations on taut cables, such as overhead power lines.[1] The dumbbell shaped device consists of two masses at the ends of a …
22Tramway track — is used on tramways or light rail operations. Grooved rails (or girder rails) are often used in order to make street running feasible. Like standard rail tracks, tram tracks consist of two parallel steel rails.Tram rails can be placed in several… …
23Ultraviolet germicidal irradiation — (UVGI) is a sterilization method that uses ultraviolet (UV) light at sufficiently short wavelength to break down micro organisms. [National Institute for Occupational Safety and Health. (2008, April). NIOSH eNews, 5(12). Retrieved September 10,… …
24Charing Cross (Northern Line) tube crash — The Charing Cross (Northern Line) tube crash occurred at 08:32 hours on 10 March 1938, when two Northern Line trains collided near Charing Cross (now Embankment). Twelve people were slightly injured. The cause was a wrong side failure of the… …
25Citroën Berlingo Electrique — The Citroën Berlingo Electrique is a battery powered version of the Berlingo range of vans. It has a 162 V Saft NiCd battery [ [http://www.saftbatteries.com Index ] ] , a 28 kW Leroy Somer electric motor [ [http://www.leroy… …
26Citroën Berlingo électrique — A regular Citroën Berlingo Battery powered Citroën Berlingos The Ci …
27Royal Gold Cup — The Royal Gold Cup, 23.6 cm high, 17.8 cm across at its widest point; weight 1.935 kg, British Museum. Saint Agnes appears to her friends in a vision. The Royal Gold Cup or Saint Agnes Cup is a solid gold covered cup lavishly decorated with… …
28Measurement category — Schematic representation of measurement categories Measurement category a method of classification of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or …
