220kv overhead line tower

220kv overhead line tower

A 220kV lattice overhead line tower is specifically designed for the transmission of electrical power at a higher voltage level of 220 kilovolts. This type of tower is a critical component of the electrical grid, enabling the efficient and effective transportation of large amounts of electricity over long distances. Lattice towers, in particular, are favored in high-voltage applications due to their robustness and cost-effectiveness.

Key Characteristics of a 220kV Lattice Overhead Line Tower:

  1. Structure and Material: Lattice towers are made of steel, with a design that features interlaced steel beams forming a characteristic lattice pattern. This design not only provides substantial strength and stability but also reduces material usage compared to solid-beam constructions, making it economical.
  2. Height: Typically, these towers stand between 30 and 60 meters tall, though the exact height can vary based on local regulations, terrain, and the clearance needed over obstacles and terrain.
  3. Span: The span between individual towers can range from 300 to 500 meters, depending on geographical conditions and the physical capabilities of the tower design.
  4. Configuration: These towers can be configured to support either single-circuit or double-circuit transmission lines. Double-circuit designs are common for 220kV lines due to their efficiency in maximizing the use of the transmission corridor.
  5. Load Capacity: Designed to carry high-voltage conductors, these towers are robust enough to support the additional weight and tension from multiple high-voltage lines.
  6. Safety Features: Equipped with insulators that hang the conductors and keep them isolated from the tower structure to prevent electrical faults. Grounding wires or systems are also integral to these towers to manage excess electrical charges and protect against lightning strikes.
  7. Installation and Maintenance: The installation of these towers involves constructing deep foundations, usually with concrete and steel, to ensure stability against environmental forces such as wind or seismic activity. Accessibility features like ladders or permanent steps are included for maintenance and inspection purposes.
  8. Environmental and Regulatory Compliance: The construction and operation of 220kV lattice towers must comply with environmental protection standards, which might include conducting impact assessments and obtaining necessary approvals from local and national authorities.

Overall, 220kV lattice overhead line towers are engineered to meet strict standards of safety, durability, and functionality. They are essential for transmitting electricity efficiently across vast distances, crucial for the connectivity and reliability of the power grid.

Product220kv overhead line tower
Shapelattice
MaterialNormally Q345B/A572, Minimum Yield Strength ≥ 345 N/mm² Q235B/A36, Minimum Yield Strength ≥ 235 N/mm². OR Q420 Q460 ASTM A572 GR65, GR50, SS400
Electric Voltage220kv
Surface treatmentHot dip galvanized Following ASTM A 123, BS729 or as client required.
connectionbolt connection
StandardISO 9001:2008
Height:below 60 meters
Surface treatment:galvanization and color painted
Welding StandardAWS (American Welding Society ) D 1.1
Production ProcessRaw material test → Cutting →Welding →Hole drilling →Dimension verify →sample assemble → surface clean→ Galvanization or powder coating ,painting →Recalibration →Packages
PackagesPacking with plastic paper, steel box or according to client’s request.

Deshi Tower specializes in the design, manufacture, and construction support of transmission towers, communication towers, steel structures, and observation towers.

Transmission tower design adheres to ASCE/SEI standards. Telecommunication tower design follows ANSI/TIA-222 standards. We are not just manufacturers and suppliers, but also your technical support and partners.



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