Low voltage overhead insulated conductors play a key role in power transmission, and their wind resistance is directly related to the stability and reliability of the power system. The following are some effective ways to improve the wind resistance of low voltage overhead insulated conductors:
First, reasonably select the conductor model and specifications. During the design stage, conductors with sufficient mechanical strength should be selected according to local meteorological conditions, especially wind conditions. Conductors with larger cross-sections and higher strength can withstand greater wind forces and reduce the risk of faults such as broken wires caused by wind.
Second, optimize the installation method of conductors. Use appropriate sag design to avoid excessive or too small sag. Excessive sag is prone to excessive swing in strong winds, while too small sag may cause the conductor to bear excessive tension. At the same time, reasonably determine the spacing of the conductors to prevent the conductors from colliding and rubbing against each other under the action of wind, causing damage to the insulation layer.
Third, strengthen the stability of the pole tower. The pole tower is an important facility for supporting the conductor. Ensure that the foundation of the pole tower is firm and can effectively resist the overturning moment generated by wind. Increase the strength and rigidity of the tower, and adopt a suitable tower structure, such as using higher-strength steel or increasing the number and size of the tower's crossarms, so that it can better withstand the wind load transmitted by the conductor.
Fourth, install windproof hardware. For example, install wind-proof pull rings, heavy hammers and other hardware on the conductor to limit the swing amplitude and direction of the conductor in the wind, so that it can maintain a relatively stable state and reduce faults such as phase-to-phase short circuits caused by wind deviation.
Fifth, regular inspection and maintenance. Timely discover and deal with defects such as wear and tear of the conductor, broken strands, etc., inspect and reinforce the foundation and connectors of the tower to ensure that the entire line system is in good operating condition. Before the strong wind comes, carry out special inspections to eliminate potential safety hazards in advance.
Sixth, use windproof protective wires. This kind of protective wire can enhance the mechanical properties of the conductor, share part of the tension under the action of the wind, protect the conductor body from being easily broken, and reduce the vibration of the conductor, further improving its wind resistance.
Seventh, strengthen the cleaning of the line corridor. Timely clear trees and debris from the line corridor to prevent these objects from being blown up and colliding with the wires in windy weather, causing wire damage or line failure.
Through the implementation of the above comprehensive measures, the wind resistance of low voltage overhead insulated conductors can be effectively improved, the safe and stable operation of the power system can be guaranteed, power outages caused by wind disasters can be reduced, and reliable power supply can be provided to users.
