Dorsalys takes part in installing a new datacenter for the Caelis Group in Onet-le-Château (12)

A first team of electricians, who had already installed and commissioned the Caelis data storage center in Figeac, took charge of deploying this new datacenter’s high and low voltage networks. Our employees installed a prefabricated substation to supply the building with electricity. They also fitted two generators supplied with fuel oil from two external tanks (with a capacity of 5,000 litres each) and they commissioned two 250 kVA inverters. To ensure redundancy of the electrical system, they fitted two rooftop generators and provided space for the installation of two additional generators in view of the site’s upcoming expansion. Two mobile outdoor cabinets, ready to contain emergency units, were also set up. 

A second team of electricians was responsible for the design and deployment of the Fire Alarm System to ensure automatic detection and suppression of any potential fire. The company's Apsad certification enabled our experts to ensure that the datacenter complied with regulations in force. They also installed the facility’s supervision (PcVue Solutions) by centralized technical management (CTM). 

On the HVAC side, our air-conditioners installed two redundant cooling units on the roof to cool all the datacenter’s technical rooms, while planning the installation of two other units in the near future (in view of the extension envisaged by Caelis). They also installed duckboards on the roof to place the units high up. In addition, they orchestrated air supply management between the computer bays and heating installation in the technical rooms. 

First, our IT experts handled the datacenter’s urbanization. In other words, they optimized both the physical and software organization of the technical features. They were then able to move on to computer bay containment in each room by organizing air inlet management in conjunction with the air conditioning. They also installed double building access control (by badge reader and keypad) according to ANSSI regulations, the anti-intrusion alarm and the site’s CCTV.  

Our experts played the internal synergy card in order to provide the Caelis Group with a comprehensive technical offer. The electrical and HVAC works began in February 2021 and were  completed in July 2021. These six months of construction work were a genuine powerhouse of technical skill, enabling our experts to demonstrate a lot of specific know-how.  

© Eiffage