The Impact of High Voltage on Overhead Line Accessories

The impact of high voltage on overhead line accessories is mainly reflected in the following aspects:

Electric field strength: High-voltage current will generate a strong electric field, which may cause the insulation performance of accessories to decrease and increase the risk of electric leakage. This requires an insulator tie to fix the optical cable, which can be divided into single side tie, double side tie and single top tie according to different positions.

Thermal effect: When high-voltage current passes through accessories, heat will be generated. Long-term high temperature may cause material aging and reduce the service life of accessories.

Arcing risk: Under high voltage conditions, arcing may occur at accessory connections, especially if there is poor contact, which can damage the accessory and potentially cause an accident.

Mechanical stress: High-voltage lines may generate large mechanical stress due to external factors such as wind, ice and snow, which poses a challenge to the structural stability of accessories. At this time, vibration damper and helical vibration damper are needed to reduce the pressure caused by the weather.

The impact of high-voltage electricity on overhead line accessories needs to be taken seriously. Proper design and maintenance are the key to ensuring safe and reliable operation.