Overhead Power Supply on the 9th UITP LIGHT RAIL Bascule Bridge CONFERENCE

11-13 June 2008 Daniele Apicella Safi ALKASI

Project Manager Tram Elect. Inst. Chief Galata Bascule Bridge Location: , connecting business centres Length: 488 m Bascule part: 2 x 40 m Bascule style: Double leaves One of the biggest bascule bridge on the World! Galata Bascule Bridge – Light Rail

Light rail line extended to Kabatas in 2005 by IETT. Tramways cross the Golden Horn again after 44 years! Galata Bascule Bridge – Original Catenary System Installed Catenary System: -Parallel routed solid copper rails,

-Fix tensioned contact wire. Result: Problems: Arcing, excessive pantograph wear, and -Too much the vibrations as a consequence: -Big sag Very low speed Galata Bascule Bridge – Original Catenary System New Catenary System – Conductor Rail

A solution was proposed in May 2007 by

the company Furrer+Frey of Bern Switzerland

specialist of the Overhead Conductor Rail Overhead Concuctor Rail Overhead Conductor Rail …..

Metro lines Tunnel

Moveable bridges and special applications Depots A system with high fire restistance Conductor rail on moveable bridges - bascule bridge Conductor rail on moveable bridges - bascule bridges installed all over the world Overhead Conductor Rail on the Galata Bridge

Installation completed at the end of October 2007

Special features

-Concuctor Rail special transition components

- Special tensioning arrangement of contact wire

- Solid and stable components Overhead Conductor Rail on the Galata Bridge Conductor Rail Contacts in the transitions Overhead Conductor Rail on the Galata Bridge Overhead Conductor Rail on the Galata Bridge Overhead Conductor Rail on the Galata Bridge

Result: - Trains now can travel at 50 kmph at max . - Arching problem strongly reduced - Geometrical stability of the structures even after continuated opening and closing bridge operations Overhead Conductor Rail on the Galata Bridge Overhead Conductor Rail on the Galata Bridge Thank you for your kind attention Katıldığınız için teşekkürler

Daniel Safi Apicella Alkasi