Order Publications

Reference: ISH2015_461

Type:
ISH Collection
Title:

EXPERIMENTAL STUDY ON MECHANICAL PERFORMANCE OF COMPOSITE CROSS ARM IN 500KV TRANSMISSION LINE TOWER

 

Abstracts

The use of composite cross arms in transmission lines could lower the height of towers and make transmission line more compact, which would reduce the cost of transmission line in construction for a large margin. The mechanical performance of a tower with composite cross arms used for 500 kV transmission line was studied by full-scale experiment in this paper. Some typical working conditions such as sudden failure, construction of the transmission line and terribly sever operation conditions were simulated in the experiment, including slinging lines, anchoring lines, lines broken suddenly and the tower suffering strong wind. Displacement and strain of some key points on the tower or composite cross arms were obtained in the experiment. Distribution of the strain had significance for strengthening weak positions in the structure. Displacement of different positions should be considered in the electrical performance design. Results indicated that the maximum displacement of cross arm end was about 55cm, which occurred on condition of the upper line broken. It could be deduced that large percent of the loads could be shared by the diagonal suspension insulators, reflecting significance of the diagonal suspension insulators.
 

File Size: 864,7 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org