28 Chapter 3 Installation
NetSure 801 AG1 Power Supply System User Manual
Negative terminal
Positive terminal
Front
Figure 3-16 HOD (top view)
The DC positive busbar of the PD48/2000DD-X1 DC distribution cabinet locates at the bottom of the cabinet, as
shown in Figure 3-17. The load cable connection of the bottom cabling cabinet is the same as that of the top cabling
cabinet.
Battery II
Battery I
Battery III
Load I
Load fuse
DC positive busbar
HOD MCB
LOD MCB
Positive terminal
Figure 3-17 Load cable connection of the bottom cabling cabinet
3.3.4 Connecting Battery Cables
Note
1. Connect battery cables according to the labels in the battery distribution unit (for example, Battery I, Battery II, Battery III and
Battery IV).
2. The capacity of the fuse or the MCB should accord with that of the battery. The breaking capacity of the NT4 fuse is 100kA,
and the breaking capacity of the MCB is 10kA.
The procedures of connecting battery cables are as follows:
1. Route and number the cables of the batteries and mark their polarities.
2. Connect one end of the negative cable to the output terminal of the battery fuse or MCB and one end of the
positive cable to the DC positive busbar of the rectifier cabinet. Add cable lugs to the other end of the positive and
negative cables, bind the cable lugs with insulating tape, and put them beside the battery. Connect the cables to the
battery when the DC distribution is to be initially tested, as shown in Figure 3-18.
