sentence: Most big towers are built as suspension towers.
sentences_after: They only hold up the cables, not pull them. Tension towers pull on the cables. They work as terminal towers at the end of a transmission line, or on sharp turns, or as transposition towers. Most big towers are lattice structures. Smaller ones may be wood, concrete or steel poles.
concept_name: big tower
headings: Transmission tower
categories: Towers Electricity distribution‎