INF.2.A3 Use of an Uninterruptible Power Supply [Building Services] (B)
An uninterruptible power supply (UPS) MUST be installed for all the operationally relevant components of a data centre. As the power consumption of air conditioning is often too high for a UPS, the control of these systems MUST at least be connected to the UPS. In the case of a server room, the necessity of operating a UPS SHOULD be checked based on the availability requirements of the IT systems at hand. The UPS MUST have sufficient capacity. If there are relevant changes in loads, checks MUST be carried out to establish whether the capacity of the existing UPS systems is still sufficient. In UPS systems that use a battery for energy storage, the battery MUST be kept within the required temperature range. For this purpose, it SHOULD be kept away from the power electronics of the UPS if possible. The UPS MUST be serviced and checked for functionality at regular intervals. The maintenance schedule specified by the manufacturer MUST be followed for this purpose.
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