Transverse support structure
A transverse support structure (generic term for transverse yokes, wire yokes and transverse fields) is a technical construction for fastening overhead lines in railways . It is characteristic of transverse structures that they span more than one track and are suspended from two masts .
The cross yoke design consists of a solid construction made of rolled iron or similar profiles or grid profiles to which the other overhead line construction is attached. This design is widespread in Switzerland.
The cross- section design with cross-rope suspension replaces the fixed roll iron construction with a combination of a double-guided cross-carrying cable , an upper and a lower directional cable and several directional cable hangers, which are responsible for the height stabilization of the lower directional cable. The overhead line is movably attached to the lower directional cable via a directional cable spacer clamp with pipe side holder. (Zigzag)
The wire yoke design is a transverse field in which a central directional cable is also inserted, which enables a different construction of the insulated mounting of post-tensioned overhead line suspension cables .
In Germany, transverse support structures have only been erected in exceptional cases since around 1990, as the possible negative effects of overhead contact line damage on all overhead lines connected by a common structure are more feared than the higher construction costs caused by single mast constructions .