Prior information notice without call for competition for, medium-voltage radio, ventilation equipment and general electrical engineering services for the construction and upgrading of the 2.9 km-long Perjen tunnel on the S16 Arbel expressway. The contract is composed of four lots the estimated date of publication of the contract notice will be 25/04/2017. For further information contact Asfinag, attn MSc Martin Dobler, Vienna, tel +43 050108-14573, fax +43 050108-14482, e-mail martin.dobler@asfinag.at. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=029112-2017. Ref.n. L-614951-7123. 05/17.