| 摘要 |
A power supply system is disclosed which comprises a printed circuit board (10) having on one side of the substrate thereof a live track (58), a neutral track (54) and a switched live track (52). A switch (30) when closed connects the live track to the switched-live track (52). The tracks (52, 58) connect live input terminal (12) to a live output terminal (20) and a neutral input terminal (16) to a neutral output terminal (18). A second switched-live track connected to the track (58) is provided on the opposite side of the substrate.
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