Answer: transmission line towers, often called pylons, are categorized based on their function and design. The two primary types are:

1. Suspension Towers: These are the most common type and are used for straight sections of a power line. The conductors are "suspended" from the tower using vertical insulator strings. The towers are designed to support the vertical weight of the conductors but handle minimal horizontal tension.

2. Tension Towers (or Strain Towers): These are much stronger and are used where the transmission line changes direction, at a dead-end, or at river and road crossings. They are designed to withstand the significant horizontal pulling forces (tension) of the conductors. The conductors are connected to the tower with horizontal or angled insulator strings to handle this strain.

Other tower types include transposition towers (which change the physical positions of conductors to balance electrical loads) and terminal towers (at the start or end of a line). We provide a complete range of tools and equipment for the construction and maintenance of all types of transmission towers.