L301 Tartu-Valmiera 330/110kV overhead line design and construction works started

During the construction works, the old overhead line will be fully dismantled and decommissioned (approx. 85 km). After demolition of the old line, new foundations will be built, new masts and wires will be supplied and installed. Over 300 masts will be demolished and replaced during the renovation. Parallel 110 kV overhead lines will be co-located on the same masts as the 330 kV line.

The completion of the L301 overhead line project will significantly increase the security of supply of both the Estonian and Latvian electricity systems and improve the capacity between Estonia and Latvia.

The attached video shows Connecto’s hard-working team erecting the first mast.

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High Voltage Laboratory

The high-voltage laboratory carries out measurements of electrical installations, testing of electrical equipment and dielectric protection devices, and audits of Class II and III electrical installations.

The laboratory is accredited by the Estonian Accreditation Centre and complies with the standard EVS-EN ISO /IEC 17025:2017 ( certificate No L095 ) and EVS-EN ISO/IEC 17020:2012 ( certificate No I013 ).

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TWe buy gas high pressure pipeline and gasistations and construction of, maintenance– maintenance and repair.

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Connecto has extensive experience in the design, construction and maintenance of 0.4 – 35 kV electricity networks. More than a hundred experienced professionals in their field provide the following services on a daily basis:

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We contribute to CO 2 reducing its footprint in the Baltics, partnering with renewable electricity producers. We offer versatile construction services wind-, solar– and hybridpark developers. Over forty Experienced specialists in their field provide the following services on a daily basis:

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Connecto has extensive experience in the design, construction and maintenance of 35 – 330 kV power grids. Nearly one hundred experienced specialists in their field provide the following services on a daily basis:

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