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// A Texbook on POWER SYSTEM ENGINEERING
// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
// DHANPAT RAI & Co.
// SECOND EDITION
// PART II : TRANSMISSION AND DISTRIBUTION
// CHAPTER 5: MECHANICAL DESIGN OF OVERHEAD LINES
// EXAMPLE : 5.7 :
// Page number 200
clear ; clc ; close ; // Clear the work space and console
// Given data
W = 428/1000.0 // Weight(kg/m)
u = 1973.0 // Breaking strength(kg)
s = 2.0 // Factor of safety
l = 200.0 // Span(m)
h = 3.0 // Difference in tower height(m)
// Calculations
T = u/s // Allowable maximum tension(kg)
x_2 = (l/2.0)+(T*h/(W*l)) // Point of minimum sag from tower at higher level(m)
x_1 = l-x_2 // Point of minimum sag from tower at lower level(m)
// Results
disp("PART II - EXAMPLE : 5.7 : SOLUTION :-")
printf("\nPoint of minimum sag, x_1 = %.1f metres", x_1)
printf("\nPoint of minimum sag, x_2 = %.1f metres", x_2)
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