Vibration Modelling of High Temperature Low Sag conductors – Self-damping characterization
High temperature Low Sag (HTLS) conductors are now installed regularly by some utilities around the world to increase the capacity of existing overhead lines and/or for other considerations. Electrical, thermal as well as mechanical aspects of HTLS conductors have already been covered in CIGRE Technical Brochures 331, 426, 695 and 763. To make sure that they will perform as expected over the long life of the line in which they are installed, the transmission line designers must be able to predict the behaviour of HTLS conductors with respect to aeolian excitation to avoid conductor failure due to fretting fatigue.
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