SF delivers emergency system in the Eurasia Tunnel

TURKEY: SF Ses ve Işık Sistemleri A.Ş has completed its work on providing the emergency evacuation announcement system for the Eurasia Tunnel. Turkey’s Ministry of Transport, Maritime and Communication put out a tender for the project, for which SF Ses ve Işık Sistemleri A.Ş. bid for and won, resulting in the installation of JBL speakers and Biamp systems to meet EN54 requirements.

The Eurasia Tunnel officially opened in Istanbul on 20^th December 2016. At 5km in length, it connects Kumkapı on the European side of the city with Koşuyolu in the Asian part by crossing the Bosphorus strait, 106m under the water.

‘They wanted an emergency evacuation announcement system which complied with EN54 requirements,’ recalled Ferhan Kayral, CTO at SF Ses ve Isik Sistemleri AS, ‘which we also integrated with third part systems, such as SCADA, as well as radio systems.’

The installation lasted for one month and saw SF deploy 100 Tunnel Horn ABF-260 from JBL's Duran brand. The Biamp setup forms a Vocia distributed public address and evacuation network. It comprises two MS-1e networked messaging processors and LSI-16e life safety interfaces, a pair of CI-1 control interfaces as well as two EWS-4 emergency wall stations. A total of 18 VA-8150CV digital networked eight-channel amplifiers and four VA-4030CVs power the system.

With the installation complete, SF reports excellent results with client feedback exceeding expectations. In spite of the acoustic challenge presented by the environment inside, the systems integrator stated that adequate speech transmission index intelligibility was achieved and the project deemed a success.

www.sf.com.tr