Structural Design and Mechanical Performance Analysis of Carbon Fiber Closed Fixtures for UHV Transmission Lines

Table 2

Five carbon fiber closed fixture layer angles.

Number	Laying angle
1	[0°]370
2	[0°/90°/0°/90°/0°]37S
3	[-45°/0°/45°/90°/-45°/0°/45°/90°/-45°/0°/45°/90°/-45°/0°/45°/90°/-45°/45°/0°/45°/-45°/90°/45°/0°/-45°/90°/45°/0°/-45°/90°/45°/0°/-45°/90°/45°/0°/-45°]5S

Note: taking the second ply angle as an example, number ‘37’ indicates that there are 37 ply groups, and ‘s’ indicates that all plies are symmetrical.