单选题船舶照明器一般由分配电板(箱)引出单相支路供电。为消除机炉舱内的日光灯“闪烁效应”(即当转动物体的转动频率与交流电频率成整数倍时,人眼看不出物体在转动),舱内各灯点供电方式是()。A每一个灯点使用不同的供电支路,不同供电支路由同一相引出B不同灯点使用同一个的供电支路C灯点分组使用不同的供电支路,不同供电支路由不同相引出D由蓄电池供电
单选题
船舶照明器一般由分配电板(箱)引出单相支路供电。为消除机炉舱内的日光灯“闪烁效应”(即当转动物体的转动频率与交流电频率成整数倍时,人眼看不出物体在转动),舱内各灯点供电方式是()。
A
每一个灯点使用不同的供电支路,不同供电支路由同一相引出
B
不同灯点使用同一个的供电支路
C
灯点分组使用不同的供电支路,不同供电支路由不同相引出
D
由蓄电池供电
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