Conductors for Construction of Resource-Conserving Type of Transmission Lines

In terms of the requirement for construction of resource-conserving type of transmission lines during the 11~(th) Five Year Plan,the author of this paper made a detailed comment on the existing conductors and those newly developed conductors at home and abroad in recent years for their properties and applications and suggested that for the conductors for main lines,the focus should be on energy-saving and saving the land for power lines and the possibility of safe operation under the N-1 condition;for the conductors for renovation of old power lines,the focus should be on the sag characteristics with increased capacity due to renovation.The author presented the production,R D and scale of the conductors for transmission lines in China and the principle for R D of new conductors,indicating innovation is of most importance.