Wind-induced loads cause electrical transmission line fatigue. Evaluation procedures consider descriptors such as deflection amplitude (Y b) and far-field vibration (fy max), which cannot relate endurance limits and wire loads. The investigation uses the finite element (FE) strategy developed in part I to study Aluminum Conductor Steel Reinforced (ACSR) submitted to windinduced loads. The analysis underlines the Y b and fy max discrepancies. A factorial design leads to a model relating them with a precision of 92%. Comparisons with experimental ACSR data indicate that fatigue predictions from the Coffin-Manson relation associated with the FE model provide realistic evaluations of service lives.

Submitted to wind induced vibrations, overhead conductors are vulnerable to fatigue damage, especially at restraining fixtures such as the suspension clamp. This paper proposes an efficient finite element modeling approach providing a full 3D representation of both the conductor and suspension clamp. Validation based on experimental data shows the precision of the approach. An in-depth model response analysis also demonstrates its ability to describe inter-wire and conductor-clamp contact interactions. Finally, a study of conductor stress distributions reveals that in critical regions, conductor wires mostly sustain alternating bending loads.

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