Construction

We are building the transmission network of the Republic of Slovenia as an investor for the needs of the Slovenian economy and population. By investing in the construction of new transmission lines and in the renewal of the existing ones, we are increasing the transmission capacities and the reliability of the electric power transmission. 

When the placement in the physical space is completed, the designer creates a project for the acquisition of a building permit (PDG). Based on this, we at the ELES company check the data on the owners of the land in the protection zones and include appraisers of agriculture, forestry, construction or other professions, who perform the inspections of the real estates and prepare appraisal reports. Based on the gathered data, we prepare a contract on the establishment of the easement, which is sent to the owner to sign. The owner has to have the signature on the contract certified by a notary. If an agreement and the signing of the contract with the owner of the land is not possible, we have to start the procedure for the establishment of an easement in the public interest. The Ministry of the Environment and Spatial Planning (MOP) then issues a building permit based on the project for the acquisition of a building permit (PDG) and the evidence of the building right, represented by the contracts with the owners, the decision of the Administrative Unit, or other acts.

Major construction works on the transmission line route include:

  • excavation of construction pits for the pylon foundations;
  • concreting the foundations or the foot parts of the pylons;
  • assembly of the pylon structure components on the ground;
  • mounting the pylons;
  • installation of other equipment and conductors.

After the conclusion of works and land arrangements, the appraisers assess the amount of damage caused by the construction of the facility, which the ELES company pays after the construction of the facility is completed. This is followed by the start-up tests and functional tests, where the execution of the first measurements of electromagnetic radiation is obligatory. Based on the prepared project and technical documentation, other acts and evidence, we submit the request for the acquisition of the operating permit. During this procedure, we also perform a technical inspection, we eliminate any potential identified defects and perform the registration in the cadastre of infrastructure.

 

Construction process of a 400-kV transmission line

Land work
Land work
Marking the forest cut
Marking the forest cut
Forest cut
Forest cut
Wood harvesting – cableway
Wood harvesting – cableway
Preparing the access path
Preparing the access path
Preparing the watercourse bridge
Preparing the watercourse bridge
Marking the foundations
Marking the foundations
Opening up when preparing foundations
Opening up when preparing foundations
Mounting the base pillar part
Mounting the base pillar part
Foundation concreting
Foundation concreting
Preparation of foundation base
Preparation of foundation base
Mobile crane mounting
Mobile crane mounting
Needle mounting
Needle mounting
Start of electrical mounting
Start of electrical mounting
Cable line wiring
Cable line wiring
Continuing electrical mounting
Continuing electrical mounting
Organising the pillar surroundings
Organising the pillar surroundings
Previous state is re-established
Previous state is re-established
Bird sign
Bird sign
Co-existence of the transmission line and the birds
Co-existence of the transmission line and the birds

 

Construction process of a 110 kV transmission line

Foundations of the 110 kV transmission line
Foundations of the 110 kV transmission line
Pillar mounting with a helicopter
Pillar mounting with a helicopter
Cable transition to the transmission line
Cable transition to the transmission line
Transition pillar
Transition pillar
Cable mounting
Cable mounting
2 x 110 kV transmission line is built
2 x 110 kV transmission line is built

Find more about our construction projects.

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