分析了设置剩余电流火灾报警系统的必要性。
The necessity of installing the residual current fire alarm system was analyzed.
通过分析产生电流越限和电缆故障的各种原因,画出报警设计的逻辑图。
It shows the logic diagram of alarm design by analyzing reasons of current spillage and cable malfunction.
对于目前的报警防止LD不受损坏过多的电流。
Over current alarm prevents LD from being damaged by excessive over current.
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