37
The current-time chart in Figure 19 shows how the cell-level fuse might coordinate with other current limiting
devices in the system.
Figure 19 – Example of total system fusing strategy
Module Fuse Rating
The module fuse should blow at a lower current than that of the individual cell fuses. This ensures that the module
fuse blows before any of the cell fuses in response to a fault on the module terminals. In addition, the module fuse
must interrupt any short circuit path that may exist around multiple series modules situated between the main
pack fuse and possible short circuit locations. Note in Figure 20, a short circuit involving four modules is possible
with an internal fault.
