Solution: Calculate the allowable spacing of the poles assuming a parabolic cable

(Last Updated On: December 20, 2017)

Calculate the allowable spacing of the poles assuming a parabolic cable.

Problem Statement: EE Board April 1994

A cable supported at two points of same level has a unit weight, ω of 0.02 kg per meter of horizontal distance. The allowed sag is 0.02 m and a maximum tension at the lowest point of 1200 kg and a factor of safety of 2. Calculate the allowable spacing of the poles assuming a parabolic cable.

  • A. 64.02 m
  • B. 66.37 m
  • C. 67.76 m
  • D. 69.28 m

Problem Answer:

The allowable spacing of the poles assuming a parabolic cable is 69.28 m.

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Solution: Calculate the allowable spacing of the poles assuming a parabolic cable
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