Abstract
The lightning-induced voltage waveform on an overhead wire having a branch is studied based on numerical calculations. The induced voltage is calculated by the method where the tangential component of the electric field to the overhead wire is looked upon as inducing sources. Accuracy of the calculated result is ensured with experimental results obtained by using a reduced-scale model. The induced voltage on an overhead wire turns out to be influenced by its branch, and is found to be dependent not only on the configuration of a branch line but also on the location of the lightning striking point. In most of the cases, the induced voltage increases when a branch is connected to an overhead wire.
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