Complete expertise. Connected.

Construction of HV & EHV overhead lines

The sphere of business of Vertex Engineers is the erection of 132 kV and 220 kV electric overhead lines and 220, 132 and 33 kV substations within the transmission and distribution system of the country’s power sector.

Since its foundation, the company has been engaged in the erection of electric overhead power lines, and has erected extra-high voltage (EHV) transmission lines and EHT substations across the country’s transmission network.

Maintenance of transmission lines

Because we provide complete erection of transmission lines and are fully equipped for such work, we can also provide useful services in the maintenance of your lines. We offer footing improvements and reinforcement or replacement of conductor joints. We also replace conductors and earth wires using special techniques — and we string conductor on one side of the tower while the other circuit remains live.

Overhauls & reconstruction

Vertex Engineers is also active in trading, consulting and advisory work. We provide complete supplies for customers in the sector, including material and equipment deliveries for companies engaged in the erection and reconstruction of transmission and distribution infrastructure.

The supplies cover

Construction and reconstruction of high voltage and extra-high voltage substations and transformer stations; assembly of electrical equipment for hydro, thermal and nuclear power plants and heating power stations; and construction of overhead transmission and distribution lines from 33 kV to 220 kV.

Projects & studies for all kinds of EHV power lines

• Projects, studies and reconstruction for all kinds of high, very high and ultra-high voltage overhead power lines, respecting all applicable regulations and particularly the protection of the environment
• Projects for new and reconstructed lines
• Analysis of power line routes and choice of building sites
• Analysis of possible technical solutions
• Specifications for the purchase of overhead line material — not only traditional tower structures, but also alternative designs to suit the customer’s requirements
• Overhead line plans drawn up by experienced personnel who have taken a significant part in the construction and reconstruction of power transmission lines

This division supplies steel lattice towers for high and extra-high voltage transmission lines, and subsidiary and main steel structures for substations up to 400 kV. We are qualified to deliver from design and production through to construction. The tower types below are drawn from our connected series, covering a wide range of uses on 132 kV, 220 kV and 400 kV lines.

Engineering, foundations & standards

For overhead power lines at 132, 220 and 400 kV, we offer separate engineering services for the design, production and construction of foundations, suspension material and grounding equipment.

Over the years, single- and double-circuit steel lattice towers have been developed for standard aluminium-steel conductors of 35/6, 50/8, 70/12, 95/15, 120/20, 150/25, 240/40, 360/57 and 490/65 mm² cross-section and all other conductor types, in conformity with IEC, BS, ASTM and DIN standards for all climatic conditions.