Open invitation to tender, deadline 11.07.2017, for a framework agreement for the replacement of 11kV circuits and for the upgrading of equipment in the tunnels in the metro and premetro underground lines in Brussels. The time limit for receipt of requests for documents or for accessing documents is up until 23.06.2017. The duration of the contract is 36 months. Further information from SPRB, att.n Mr Luc Payfa, Bruxelles, email lpayfa@SPRB.brussels. Tenders to be sent to SPRB, att.n Mr Luc Bioul, Bruxelles. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=181084-2017. Ref.n. DITP-CSC BB BM 1434-F05_0. 20/17.