48 Chapter 6 Battery
Liebert NXC 30kVA And 40kVA UPS User Manual
6.7 Battery Installation And Connection
6.7.1 Battery Installation
1. Before installation, check the battery appearance to ensure that there is no damage, inspect and count the
accessories, and carefully read this manual and the user manual or installation instruction provided by the battery
manufacturer.
2. There shall be at least 10mm gap between the batteries in vertical direction, to ensure the free circulation of the
ambient air of the batteries.
3. Certain clearance shall be maintained between the battery top and the upper layer to facilitate the monitoring and
maintenance of the battery.
4. The batteries shall be installed from the bottom layer and from bottom to top, so as to avoid a too high gravity center.
The battery shall be properly installed and protected from vibration or shock.
6.7.2 Battery Connection
1. All the battery cabinets or battery racks must be connected together and properly grounded.
2. When multiple batteries are used, they shall be connected in series and then in parallel. Before loading and
power-up, it must be detected that the total voltage of the batteries is as specified. The negative and positive poles of
the batteries must be connected to the negative and positive battery terminals of the UPS according to the labels on
the battery and UPS. If the battery is reversely connected, explosion and fire may be caused, it may result in battery
and UPS damage or even human injury.
3. When the battery cable connection is completed, install insulating shield for the terminals.
4. When connecting the cable between the battery terminal and the BCB, the BCB terminal shall be connected first.
5. The bending radius of the cable shall be larger than 10D, wherein D is the outer diameter of the cable.
6. When the battery cable is connected, it is prohibited to pull the battery cable or the cable terminal.
7. Do not cross the battery cables during the connection, and do not tie the battery cables together.
8. See Figure 6-1 for battery connection.
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