Overhead Line Equipment (OLE) Design

Demand for rail travel has significantly increased in recent years. As a result, our clients require a safe and efficient railway that meets the needs of their customers in terms of frequent services and convenient routes. On top of that electrified railways provides low carbon emissions.
From development of new rail schemes to upgrade and electrification of existing railways SDEA helps our clients through the entire project lifecycle to delivered integrated solutions that improve experience of all passengers and freight services.
The Overhead Line Equipment (OLE) design relies on the supply of electrical power to the vehicle units. Power is supplied through the catenary via interaction with the pantograph. The main mission of an OLE designer is to ensure compatibility and correct performance of these two main parts to achieve project requirements. OLE design implies to cover very long distances of railway where power needs to be supplied to the vehicle. A designer must be able not to just provide solutions for open routes, but for specific points of the infrastructure that need accuracy and detail to comply with all safety and design standards.
SDEA have the skills to develop works from Feasibility Studies to Full Detailed design for construction. The design team has expertise in finding the best design solution for low headroom overbridges, footbridges, tunnels and stations. We produce OLE Layout plans with all the require design information as position of OLE structures, wire run heights and staggers and position of other lineside equipment. We develop Cross-sections of each structure showing all the relevant information for its construction including Bill of Materials.
Our team has works with several basic design ranges, NR Series 1, NR Series 2, NR GEFF, OLEMI and others including conductor beam and tram wire. These systems span between 25kV AC supply to 750V DC and maximum operating speeds of 225 km/h.
Designs are developed from onsite survey data as for example Point Cloud technology which provides a virtual accurate perspective of the site. Please refer to our BIM modelling section to find out more about this technology.