PowerWAVE 9000 DPA UPS - Installation 3-7
(Issue 2.1 Oct. 2009)
Under the connection terminal of the UPS there is a cable-fixing rail to
ensure that the cables have been fastened properly.
3.6.7 Preparation for the Output Cabling
Before connecting the loads, ensure that the sum of the indicated UPSSystems rated powers (OUTPUT POWER) on the nameplates (on the front
side of the UPS-Systems) is equal to or larger than the total load
requirements.
The output of the UPS must be fitted with circuit breakers or other
protection connected between the loads and the UPS and will provide
additional protection in the event of overloads and short circuits.
The size of the circuit breakers depends on the load rating of the load
sockets. The circuit breakers must comply with the prescribed IEC
Standards. It is recommended to provide a separate output distribution
board for the load.
The following values should be indicated on the outpu t di stribution board:
• Maximum total load rating;
• Maximum load rating of the load sockets.
• If a common distribution board is used (sockets for Mains an d UPS
voltage), ensure that on each socket there is an indication of the
applied voltage (“Mains” or “UPS”).
Output power cable ratings should be in accordance with the recommended
cable sections and fuses ratings or in accordance with the prescribed IEC
Standards or with the local regulations.
There is a cable-fixing rail under the connection terminals of the UPS to
ensure the cables are properly fastened.
Ensure that the earthing is performed in accordance with the prescribed
IEC Standards or with the local regulations.
3.6.8 Connection of the Load
To ensure protection of the personnel during the installation of the UPS
make sure that the connections are performed under the following
conditions:
• No mains voltage is present;
• All loads are shut down and disconnected;
• UPS is shut down and voltage-free.
Before connecting the output power cables make sure that:
• UPS is located in its final position;
• Maintenance Bypass is open in position OFF
• Parallel isolator IA is open in position OFF