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| Customization: | Available |
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| Usage: | Monopole Tower |
| Conductor Circuit: | Single Circuit |
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| Tower Type | Description | Key Features / Advantages | Common Use Cases |
| Suspension Tower (Tangent Tower) | The most common type, used for straight-line sections of the transmission line. | • Supports the weight of the conductors and ground wire. • Conductors are suspended vertically from insulator strings. • Relatively simple and economical design. |
Straight and flat routes with minimal directional changes. |
| Tension Tower (Angle Tower / Strain Tower) | Used where the line changes direction, at dead-ends, or for major river/valley crossings. | • Withstands significant unbalanced mechanical tension in the conductors. • Heavier, stronger, and more complex design than suspension towers. • Conductors are attached to strain insulators. |
• Changes in line direction (angles). • Terminating a line segment. • Long span crossings. |
| Transposition Tower | A specialized tower used to rotate the relative positions of the phase conductors. | • Allows for the "transposition" of phases along the line. • Reduces electrical imbalance and interference in long lines. • Can be combined with suspension or tension functions. |
Long-distance transmission lines to balance line impedance. |
| Terminal Tower | Marks the very end of a transmission line, typically at a substation. | • Designed to handle the full tension of the conductors in one direction. • Connects the overhead line to substation equipment or underground cables. |
Substation entries and exits; endpoints of a transmission line. |
| Crossing Tower | A heavy-duty tension tower specifically designed for major obstacle crossings. | • Extra tall and strong to provide required clearance. • Capable of withstanding the heavy tensions of long spans. |
Crossing wide rivers, deep valleys, highways, or railway lines. |
| Double-Circuit Tower | A single tower structure that carries two separate electrical circuits. | • Saves right-of-way space and reduces construction costs. • More compact footprint but requires a taller, stronger tower. • Circuits can be arranged vertically or horizontally. |
Areas where land is scarce or expensive; common in many modern grids. |
| Lattice Steel Tower | A traditional design made of steel angles bolted together to form a lattice structure. | • High strength-to-weight ratio. • Flexible and can withstand high winds. • Requires a large footprint and more assembly time on site. |
High-voltage (HV) and Extra-high-voltage (EHV) lines worldwide. |
| Tubular Steel Pole | Made from cylindrical or polygonal steel sections, often galvanized. | • More aesthetically pleasing and has a smaller footprint. • Generally more expensive than lattice towers. • Faster installation as sections are often pre-assembled. |
Urban areas, scenic locations, and lower voltage sub-transmission lines. |
| Guyed-V Tower | A tall, narrow mast stabilized by guy wires (cables) in multiple directions. | • Uses less material for the mast itself, making it cost-effective for height. • Requires a large area for the guy wire anchors. • Vulnerable if a guy wire is damaged. |
Long river crossings or areas requiring very high clearance. |
| Wooden Pole (H-Frame) | Not a "tower" per se, but used for transmission, consisting of two wooden poles. | • Lower initial cost and good dielectric properties. • Shorter lifespan and lower mechanical strength compared to steel. • Used for lower voltage transmission. |
Lower voltage (e.g., 69 kV, 115 kV) lines in rural or forested areas. |

