Overhead Power Supply on the 9th UITP LIGHT RAIL Galata Bascule Bridge CONFERENCE 11-13 June 2008 Istanbul Daniele Apicella Safi ALKASI Project Manager Tram Elect. Inst. Chief Galata Bascule Bridge Location: Golden horn, 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.