Go to main contents page

Electric Power Supply Interface

If the site contains an Uninterruptible Power Supply (UPS or "DC-AC inverter"), the following conditions must be respected:

1. UPS installed in the computing room:
   • The UPS must be equipped with water-proof and dust-proof batteries
   • Before installing the UPS, check with the manufacturer that the noise level and frequency (in Hertz) are compatible with the comfort of people working in the vicinity.
   • Also make sure that its electromagnetic compatibility (EMC) characteristics meet current standards and that it cannot harm the proper operation of the computer hardware - for example, that it bears the following marking:

     
     

2. UPS installed in a technical room:
   • If the batteries are of the "open" type, they must be installed in a specific environment which takes account of emanations of hydrogen, as described in standard NF C15.100 of May 1991, Part 5 - section 554.
   • Full account should be taken of the heat dissipation of this equipment because it can be quite significant and may require the installation of an air-conditioning system (manufacturer's recommendation: to maintain optimum battery life, the ambient temperature of this room should never exceed 25°C).

Go to main contents page