Just from the battery and DC charging device point of view, the DC system reliability can be guaranteed

Visible single from the battery and DC charging device point of view, the DC system reliability can be guaranteed. But DC can successfully and reliably send out, whether in the DC  electri cenergy meter  when a selective removal of fault segments, to ensure that other non-fault load of work, we must rely on the loop in series with the DC output  power transformers  DC Air the normal operation of the circuit breaker and the correct fit. Because from the DC charging device output to the last one in the middle of the DC load side will  Voltage stabilizer  several fuses and DC air circuit breakers, if any of the components before and after class with properly, it will appear that a blown fuse is not blown, should not have blown a fuse has blown;