Multifaceted power transmission line
Multifaceted power transmission line (PTL) poles are structures with a polygonal cross-section, manufactured from sheet steel by bending with one or two longitudinal seams. They are used to support wires and fiber-optic communication lines at a specified distance from the ground and from each other.
Production capabilities allow for the manufacturing of multifaceted poles for PTLs with voltages of 10 kV, 35 kV, 110 kV, 220 kV, 330 kV, and 500 kV. These poles can operate in various climatic conditions, including:
- Wind load zones I–VII
- Ice load zones I–VII
- Pollution zones I–IV
- Seismic activity zones up to 9 points
- Temperatures down to -65 °C
The basic designs of multifaceted PTL poles include:
- Single-circuit and double-circuit single-column intermediate poles
- Single-circuit and double-circuit single-column anchor-angle poles
- Single-circuit double-column intermediate poles with internal ties
- Single-circuit three-column anchor-angle poles
Steel multifaceted poles have high strength with relatively low weight and can be reused throughout their entire service life.