Methodology
Overhead lines design methodology
DEC 01, 21 | 2 AM · 
SOUKAYNA JERMOUNI
This methodology describes the design process to calculate an overhead line that connects the solar plant’s station facility with the grid’s point of interconnection.
The objective of this document is to present the main steps followed to calculate the electrical and mechanical characteristics of an overhead line.
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What's included?
An overhead line design goes through several stages from planning to execution. This document will focus on explaining the stages that are in between.
Following are the topics that will be covered in this document to explain the design of the overhead line:
- The line’s blocks definition
- Selection of the line’s phase conductor
- Insulation coordination and clearances
- Selection of the line’s insulator
- Towers spotting
- Catenary and sags calculation
- Spans calculation
- Towers top-geometry calculation and selection of standard towers
- Earth wire calculation
- Electrical parameters calculation
- Tower forces calculation
Learn more about methodology's authors: Soukayna Jermouni, Álvaro Benito, Ignacio Álvarez, Meyer Montagner, Félix Pérez and Álvaro Pajares.