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Category: Sag and Tension

January 20, 2021 Engineering Guides / Overhead Power Lines / Power Lines / Sag and Tension / Technical Articles

Example 2: Pole Loading Analysis of Angled Structure based on NESC 2017

In this example calculation of angled pole structure, the objective is to apply NESC 2017 rules to generate the loading

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January 15, 2021 Engineering Guides / Overhead Power Lines / Power Lines / Sag and Tension / Technical Articles

Transmission Line Failure Due To Increase In Conductor Tension

This article is a primer to Example 2: Pole Loading Analysis of the Angled Structure based on NESC 2017. Also,

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September 10, 2019 Overhead Power Lines / Power Lines / Sag and Tension / Technical Articles

How to Use Sag Template for Tower Spotting – Part 3

Tower or Structure spotting is a term used for the process of determining the optimum location, height, and type of

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June 27, 2019 Overhead Power Lines / Sag and Tension / Technical Articles

How to make Sag Template for Tower Spotting – Part 2 (Examples)

In this post, we will make an example calculation for generating a sag template. We will follow the steps defined

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February 14, 2019 Overhead Power Lines / Power Lines / Sag and Tension / Technical Articles

How To Make SAG Template for Tower Spotting – Part 1

Route Plan and Profile It is assumed by now that you already have a “route profile” or simply “profile” that

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October 19, 2018 Electrical Calculations / Overhead Power Lines / Sag and Tension / Technical Articles

Sag-Tension Spreadsheet Free Calculator (Even and Uneven Supports Elevation)

In addition to the free “even elevation sag-tension spreadsheet”, here is another excel spreadsheet wherein uneven elevation of supports is

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August 29, 2018 Overhead Power Lines / Sag and Tension / Technical Articles

3 Types of Conductor Models used in Sag and Tension Calculations

I have presented so far sag and tension calculation based on the linear cable model which does not account for

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August 1, 2018 Electrical Calculations / Overhead Power Lines / Sag and Tension / Technical Articles

Sag-Tension Spreadsheet Free Calculator (Even Elevation)

As promised, you can download for free my sag-tension spreadsheet calculator. Take note that because of the complexity of the

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Mechanically Coupled Spans
July 29, 2018 Sag and Tension / Technical Articles

Step-by-Step Sag and Tension Computation using Ruling Span Theory

In the previous post “What is Ruling Span?”, we understood that the sag characteristics of the ruling span sets the

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March 18, 2018 Engineering Guides / Sag and Tension

Creep Phenomenon on Transmission Line Conductors

Creep is a phenomenon which affects most materials subjected to stress. It manifest itself by an inelastic stretch (or permanent

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Recent

  • Example 2: Pole Loading Analysis of Angled Structure based on NESC 2017 January 20, 2021
  • Transmission Line Failure Due To Increase In Conductor Tension January 15, 2021
  • PEC 2017 – Appendix A Electrical Symbols November 5, 2020
  • Example 1: Pole Loading Analysis of Tangent Structure based on NESC 2017 May 1, 2020
  • Loading Analysis of Transmission and Distribution Structures based on NESC 2017 February 24, 2020
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