求翻译：AC220V和DC24两路供电，当任一路供电故障时，另一路自动切换维持系统工作,两路均失电的情况下，蓄电池可维持系统供电30分钟是什么意思？

ac220v, dc24 two power supply, any way the power supply failure, the other way switch automatically to maintain system operation, the case of two-way loss of power, the battery can maintain power to the system 30 minutes

220 AC V DC 242 Road and when the power supply, a power supply failure, the other a way automatically switch the system to work, two-way, power is lost, the battery can be 30 minutes of power to the system

AC220V and DC24LIANG road power supply, when any group power supply breakdown, another group automatic cut over maintenance system work, two groups lose the electricity in the situation, the accumulator cell may maintain the system to supply power 30 minutes

Power supply AC220V and DC24 road, when either all the way power supply failure, automatically switch all the way to maintain the system, two cases of power failure, battery powered system could be maintained for 30 minutes

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