Abstract
The low wind-pressure conductor is a dedicated conductor which obtains low wind resistance coefficient by changing the sectional shape of the conductor and has extensive application prospect in electric power transmission lines in strong wind areas. Previous wind tunnel testing results showed that the wind resistance coefficient in unit length of the low wind-pressure aluminium conductor steel reinforced was obviously lower than that of the conventional aluminium conductor steel reinforced, and the control factors of manufacturing process of the low wind-pressure conductor were proposed. In this paper, the low wind-pressure aluminium conductor steel reinforced JLX1/G1A(DFY)–680/45–338 was designed based on the structure optimization of the conventional aluminium conductor steel reinforced JL/G1A–630/45–45/7, and the service performance study of the conductor was carried out. Results showed that the mechanical properties, electrical properties and construction properties of the low wind-pressure conductor fully satisfied service requirements, and the conductor can be popularized and applied for transmission lines in strong wind areas.
Highlights
Different types of static or dynamic response will occur on the conductor under wind excitation conditions [1]
Statistic data indicate that destructions caused by wind load occurred in nearly one thousand electric power transmission lines in our country in recent years, which resulted in serious economic losses and social influence
With the development of west to east power transmission strategy in our country, more transmission lines pass through the strong wind areas in the northwestern region
Summary
Different types of static or dynamic response will occur on the conductor under wind excitation conditions [1]. The operation experience of existed transmission lines shows that the breeze vibration duration of conductors is longer, the vibration amplitude is stronger and the frequency range is wider under continuous strong wind conditions in the north-western region, and the windage yaw and subspan oscillation frequently occur. The service performance study of low wind-pressure conductors was carried out, aiming to promote the application of low wind-pressure conductors for transmission lines in strong wind areas.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
