{{Short description|Tower from which electric power lines are suspended}} {{More sources needed|date=September 2024}} In an electric power transmission line, a '''suspension tower''' is where the conductors are simply suspended from the tower, the mechanical tension being the same on each side.<ref>{{Cite web |last=R |first=Anshika |date=2017-11-09 |title=Mechanical Design of Transmission Lines {{!}} Electrical Engineering |url=https://www.engineeringenotes.com/electrical-engineering/transmission-lines/mechanical-design-of-transmission-lines-electrical-engineering/29019 |access-date=2024-09-11 |website=Engineering Notes India |language=en-US}}</ref>
In this case, the tower is supposed to carry a downward force, and a lateral force, but not a longitudinal force.
These may have, for each conductor, an insulator string hanging down from the tower, or two strings making a "V" shape. In either case, sometimes several insulator strings are used in parallel to give higher mechanical strength. These are used where a transmission line continues in a straight line, or turns through a small angle. In other cases, a tension tower (C or D Towers) is used.
<gallery mode="packed" heights="160"> Enztal 110kV Rohrmasten.jpg|Suspension towers of a 110 kV power line in Germany Опора ЛЭП 330кВ.jpg|A suspension tower of a 330 kV powerline in Ukraine Power line 1150 kV.jpg|A suspension tower of a 1150 kV powerline in Russia Жнива України.jpg|A suspension tower of a 35 kV powerline in Ukraine Вантовая опора 110 кВ конструкции ГК ЭЛСИ.JPG|A guyed tower in Russia Lignes HT001.jpg|In France, it is common to bend lines at suspension towers with single insulators pulled to the side Pylon_ds.jpg|A suspension tower, UK Electricity pylons in Häggvall 1.jpg|Suspension towers in Sweden Pylons_near_Amsterdam_NL_2005.jpg|Row of suspension pylons near Amsterdam in the Netherlands </gallery>
==See also== * Dead-end tower * Transposition tower
==References== {{reflist}}
{{DEFAULTSORT:Suspension Tower}} Category:Pylons