人民防空地下室出入口照明回路设计探讨

Discussion on Lighting Circuit of Civil Air Defense Basement's Entrance

在防空地下室设计中,防护区内和非防护区灯具共用照明回路时,须在防护密闭门处设置短路保护装置。在上下级短路保护装置配合方案中,断路器+熔断器、断路器+断路器均不满足选择性配合要求。通过合理选择,熔断器+熔断器、带选择性断路器(SMCB)+非选择性断路器可达到选择性配合要求,或是对非防护区的灯具设置单独回路供电,可满足非防护区的照明灯具、线路战时一旦被破坏发生短路,不会影响到防护区内的照明回路的要求。

In the design of the air defense basement, when Lighting circuit is Shared between the lamps in the protection zone and non-protective zone, the short-circuit protection device must be set in the protective closed door. The circuit breaker ＋ fuse link, circuit breaker ＋ circuit breaker can not meet the requirement of selective cooperation. The fuse link ＋ fuse link, selective circuit breaker （SMCB） ＋ non-selective circuit breaker, can meet the selective matching requirement through reasonable selection, or setting the single loop power supply for the protection zone, so as to realize the protection of wartime once destroyed, lighting lamps and lanterns, line short circuit will not affect the protection zone of the requirement of the lighting circuit.