Electrical engineering
![Electrical engineering](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Onduleurs-1.jpg)
- Transmission and distribution of electrical energy (MV/HVB substations and lines, HV/LV switchboards, high-quality electrical security)
- Functional analysis, automation, selectivity
- High-availability backup energy systems: inverters and generator sets
Security of property and people
![](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Protection%20incendie-2.jpg)
- Fire detection
- Fire extinguishing through gas, water fog
- Lightning protection, EMC (electromagnetic compatibility)
- Safety
Communication
![Telephony](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Communication-1.jpg)
- Telephony and intercoms
- Radio communication
- VDI and IT networks (copper/optical)
- Fibre-optic deployment (LAN, MAN & FTTH)
- Wireless networks
Air conditioning and ventilation
![Secure heat or cold production](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/climatisation.jpg)
- Secure heat or cold production
- Air conditioning through proven or innovative solutions & cooling of ECU cores
- Containment of hot/cold aisles and production of turnkey high-density modules
- Energy optimisation and recovery
- Upgrade & securing of energy chains (Uptime Institute)
- Performance testing of IT rooms
- Thermal simulations
- Vibration monitoring of air handling unit and air conditioning systems
Urbanisation and local action
![Level 1 intervention](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Cablage-1.jpg)
- Level 1 intervention
- Realisation of PoDs, containment
- Wiring, optical and copper links
- Acceptance testing
Operation and supervision
![hypervision](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Fiabilisation%20%c3%a9lectrique%20d-1.jpg)
CTM/BMS
Multi-site hypervision/operation
Technical alarms
DCIM: operation and analysis tools
Maintenance in operational condition
![Maintenance engineering](/files/live/sites/Eiffage_Dorsalys_V2/files/Datacenter/Maintenance%20et%20astreinte-1.jpg)
- Audit & consulting
- Maintenance engineering (operating reliability, integrated logistics support)
- Maintenance and operation contract
- Facility management
- 24/7 on-call service
- Management, technical management and operation
- Improvement plan