Calculating Tension in Overhead Conductor with added Wind pressure

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SUMMARY

The discussion focuses on calculating the tension in a 'Dog' overhead conductor over a 100m span under a wind pressure of 900Pa. Key properties of the 'Dog' conductor include a diameter of 14.15mm, a weight of 0.3965kg/m, and a calculated breaking load (CBL) of 32.7kN. The initial tension is set at 10% of the CBL, and the modulus of elasticity is specified as 139 GPa. The conversation clarifies that wind pressure can be converted from wind speed and emphasizes the importance of understanding basic catenary calculations for this scenario.

PREREQUISITES
  • Understanding of catenary calculations in overhead line design
  • Knowledge of conductor properties, including diameter and weight
  • Familiarity with wind load calculations and conversions from wind speed
  • Basic concepts of material properties, including modulus of elasticity
NEXT STEPS
  • Research methods for calculating tension in overhead conductors under varying wind loads
  • Learn about the impact of temperature changes on conductor tension
  • Explore advanced catenary analysis techniques for overhead lines
  • Study the relationship between wind pressure in Pascals and wind speed for load calculations
USEFUL FOR

Electrical engineers, utility line designers, and professionals involved in overhead conductor installation and maintenance will benefit from this discussion.

mnga021
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Hi was wondering if anyone knows how to calculate the tension in a overhead conductor say 'Dog' conductor over a 100m Span with a wind of 900Pa given its properties are as below

'Dog' Conductor properties

Diameter = 14.15mm
Weight = 0.3965kg/m
Area = 118.8mm^2
CBL = 32.7kN
Expansion Co = 0.0000139
Mod of elasticity = 139

This is with an initial tension of 10% CBL.
And no change in temperature.
 
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If we take away the wind, I would presume that this is a basic catenary calculation; do you agree? What does the term "Dog" denote? What does a wind load in Pa mean? We normally specify wind loading by giving wind speed, so what is this? What is CBL? What are the units on your modulus of elasticity?
 
Dog is the name of the type of conductor which is used. wind load is wind pressure which you can convert to from wind speed. CBL is calculated breaking load of the conductor and the units on the modulus of elasticity is GPa. Pa is pascals.
 

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