The following is a list of spans, either used for overhead line crossings of rivers, sea straits or valleys, as antenna or for aerial tramways. == Powerline spans in flat areas with high pylons == At these spans the sag of the conductors is less than the height of the pylons == Powerline spans in mountainous areas requiring shorter pylons == At these spans, the pylons are situated on the tops of mountains, so the topography determines the height of the lines.
The following is a list of spans, either used for overhead line crossings of rivers, sea straits or valleys, as antenna or for aerial tramways. == Powerline spans in flat areas with high pylons == At these spans the sag of the conductors is less than the height of the pylons == Powerline spans in mountainous areas requiring shorter pylons == At these spans, the pylons are situated on the tops of mountains, so the topography determines the height of the lines.
Source: Wikipedia "List of spans" · CC BY-SA 4.0
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