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直流电源在使用中绝大多数会反复经历充电和放电过程,而在充电或放电过程中,电气线路和电源电池等都有发生电气故障,引起燃烧或爆炸的可能。研究发现直流电源发生的电气故障和火灾危险性特点都与交流电具有显著的不同,尤其是充放电过程和电源内电池的电气故障更是交流电所没有的。通过对直流电源火灾危险性的分析,提出了预防直流电源火灾的建议。
DC power supply in the vast majority will repeatedly experience the charging and discharging process, and in the charging or discharging process, electrical circuits and power supply batteries have electrical fault occurred, causing the possibility of burning or explosion. It is found that the electrical faults and fire risk characteristics of DC power supply have significant differences with AC, especially the electrical failure of charging and discharging process and the battery inside the power supply is not the AC. Through the analysis of the danger of DC power supply fire, a proposal of preventing DC power supply fire is put forward.