The installation method of preformed spiral rods

The installation method of preformed spiral rods can be divided into the following steps:

Step 1: Selection of Preformed Spiral Rod Type and Specification‌
The type and specification of preformed spiral rods should be determined based on the requirements and specific conditions of the overhead line. Generally, factors such as the wind resistance of the overhead line, wire diameter, span length, and terrain should be considered when selecting the appropriate preformed spiral rod.

Step 2: Positioning of Preformed Spiral Rods‌
Positioning involves determining the hanging position and tension requirements of the preformed spiral rods. During positioning, factors such as the number, spacing, length, and angle of the rods must be considered, ensuring even tension and proper alignment without deviation.

Step 3: Fixing the Preformed Spiral Rods‌
Fixing refers to securing the preformed spiral rods in place. This can be done using tools such as clamps, clamps, or stakes, or by directly coiling or welding them onto the utility pole.

Step 4: Tensioning the Preformed Spiral Rods‌
Tensioning involves pulling the preformed spiral rods tight at the fixed points to achieve the desired tension. The tension level should be controlled according to specific specifications and requirements, typically within a range of 10% to 20%.

Final Step: Inspection and Debugging‌
After installation, a series of inspections and adjustments should be conducted. The inspection primarily includes checks on the firmness of the preformed spiral rods, whether the tension meets requirements, if there is any loosening, and if the span distance is reasonable.

The installation of preformed spiral rods plays a crucial role in the safety and stability of overhead lines. During the actual installation process, all relevant factors must be carefully considered, and the installation plan should be scientifically and reasonably designed and implemented to ensure the safety and reliability of the overhead line.