DDXL-34型防雷信号点灯转换单元,副丝回路中的检流变压器工作时,其二次侧电流为( )。[321010101]
A.(A)1mA~2mA
B.(B)1.5mA~3mA
C.(C)1.5mA~2.5mA
D.(D)2mA~4mA
正确答案是A