Overhead and underground power lines

We adapt the design to the needs of each project.


En SISENER, con la incorporación al grupo de la empresa FEMAB, S.L., ponemos a disposición de los proyectos a un equipo de profesionales dedicados exclusivamente al diseño de líneas de transmisión y/o distribución. El equipo cuenta con profesionales con más de 25 años de experiencia en el sector. Nuestros diseños se adaptan a las necesidades de cada proyecto: desde redes rurales en media tensión y baja tensión, utilizando postes de hormigón o madera, hasta grandes líneas de transporte en alta tensión, en 400 kV o 500 kV, con el uso de apoyos metálicos estandarizados o diseñados a medida.


A completely comprehensive development with its own resources, covering all possible phases and engineering disciplines:

The different phases:


  • Particular topographic surveys for lines, LIDAR, etc.
  • Basic or conceptual engineering: studies of traces, implantations.
  • Processing, conceptual, or administrative engineering, conditions management.
  • Property engineering: development of bidding documents, preparation of bids, engineering review developed by third parties.

And the disciplines:

  • Civil engineering: design of foundations, design / study of access roads.
  • Electromechanical engineering: design of metallic support structures, earthing networks, electromechanical assemblies.
  • Electrical engineering: conductor sizing, insulation coordination, grounding networks.
  • Supervisions and administration of the site.

With a multidisciplinary team and the support of the entire group, at SISENER we can undertake those projects aimed only at companies with a high degree of specialization in which each of the parts of the project becomes fundamental:

  • Design of special or individualized foundations for each location with the type appropriate to the type of soil: cylindrical or prismatic piles, with or without widening at the base, slab-pillar (“pad&chimeney”), piled, with tie beams,…
  • Design of complete series of towers / supports in those projects where the optimization of materials is essential compared to the use of commercial products.
  • Use of high temperature and low deflection conductors for special cases.
  • Electrical studies for the integration of lines in regional or national systems: operability studies.

In line with market needs, the group of our company dedicated to lines is a pioneer in line repowering projects, both in increasing the transported power and in the operating voltage.


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