Sag of Transmission Line with supports at different heights Calculator

Sag of Transmission Line with supports at different heights Calculator

H(tension at O)

N

w(weight per unit length)

kg/m

l(half span)

m

x₁(horizontal distance of end point B from O)

m

CALCULATERESET

Result

Yb(vertical distance of b from O)

m

Ya(vertical distance of b from O)

m

h(difference in support heights)

m

Click here to view image

where 

 S = length of line from point O

 y_b = vertical distance of end point B from O

 y_a = vertical distance of end point A from O

 x₁ = horizontal distance of end point B from O

 w = weight of line per unit length 

 h = difference in tower heights

 H = tension at point O

 2l = span length

 O is the lowest point on the line