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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)