【Public Utilities – Mechanical & Electrical Edition】20181102
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Among the following electrical circuits, which one cannot be laid in the same conduit? A. 8 wires of the lighting fixture B. 5 circuits from the same lighting distribution box C. The main circuit of the same device and control circuits that require no interference D. Two DC circuits with voltages of 24V and 12V respectively 【Answer】D 【Explanation】Wires from different circuits, with different voltage levels, as well as AC and DC wires, must not be placed in the same conduit
C. The main circuit of the same device and the control circuit with no interference requirements
D. Two DC circuits with voltages of 24V and 12V respectively
D. Two DC circuits with voltages of 24V and 12V respectively