Retrofit des cellules 6.4 Kv de joule par de nouvelles cellules 24 kv sans sf6

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This invitation to tender concerns the complete renewal of the medium-voltage installation (6.4 kV) at the Joule substation, located at Chemin du Bochet 5, 1024 Ecublens, and the supply of 32 new medium-voltage (MT) switchgear cells designed according to an SF₆-free technology. The project forms part of SIE SA’s distribution network modernisation strategy and constitutes a major step in the gradual migration of the 6.4 kV distribution network to 21 kV. The project includes in particular: * Dismantling, recycling and disposal of the existing medium-voltage switchgear cells and equipment; * Demolition and disposal of the existing niches; * Removal/disposal of an nitrogen cylinder present in the substation; * Disposal of 2 oil drums (416 l in total); * Complete replacement of the existing medium-voltage switchgear cells; * Renewal of the AC and DC auxiliary services and batteries, as well as full improvement of the CVSE installations; * Renewal of the control-command, protection and communication equipment; * Integration of the existing equipment to be retained; * Necessary civil engineering works; * Adaptations of the existing medium-voltage cable connections…

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