Bidding Announcement Of: Adif -Administration Terch. Object: Maintenance Of Traction Energy Facilities: Contact Airline, Telemando Of Energy, Substations, Autotransformation Centers And Associated Systems Of Lav Lift Sections: Madrid Chamartín-Valencia-Alicante, Xátiva-Torrent And Xátiva-La Encina. File: 2.25/21506.0017.