Newave_OPM_PV11_PV31 _GB_250805.doc Installation
Page 16
3.6.19 Preparation for the Output Cabling3
Before you start connecting the loads, ensure that the sum of the indicated UPS-Systems 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 kind of protection. These circuit
breakers will be connected between the loads and the UPS and will provide additional protection to the
UPS in the event of overloads and short circuits.
These circuit breakers will enable the protection of each load separately.
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 output distribution board:
•
Maximum total load rating;
•
Maximum load rating of the load sockets.
•
If a common distribution board is used (sockets for Mains and 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.
Under the connection terminal of the UPS there is a cable-fixing rail to ensure that the cables have
been fastened properly.
Ensure that the earthing is performed in accordance with the prescribed IEC Standards or with the
local regulations.
3.6.20 Connection of the Load
ALL THE OPERATIONS IN THIS MANUAL MUST BE PERFORMED BY AUTHORISED
ELECTRICIANS OR BY QUALIFIED INTERNAL PERSONNEL.
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 PowerValue
TM
is shut down and voltage-free.
Before connecting the output power cables make sure that:
•
UPS-Systems is fitted in its correct position;
•
Maintenance bypass is in position OFF;
Remove the terminal cover of the UPS.
Connect the output power cable coming from the LV-Distribution Board to the terminals of the UPS as
shown in drawing in Figure 3.
!