Wind Span and Weight Span Etc. Calculation

When looking at the transmission line profile view, the wind span is defined as half of the sum of adjacent spans. The weight span is defined as the distance from low point sag of one span to the low point sag of the next span.

To clarify, these values have to do with loading of a supporting structure (transmission line pole structure). with 3 structures in a row, there are 2 cable spans. One half of the sum of the 2 spans will give the wind span. This will be used to calculate the force applied to the structure due to a horizontal wind blowing on the conductors.

Because the cable takes the form of a catenary curve when hung between 2 fixed points, there will be a low point between each of the structures. The distance between these low points will be the weight span for the middle structure. This value will be used to calculate the weight of the cable that the structure must support.