Quote:
Originally Posted by Tom Line
It prevents someone from unplugging a wire from a motor or sensor and accidentally shorting the power pin to ground. I've always assumed that's the same reason the prongs always go into your wall at home, but never verified it.
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You're right. Extension cords with two male ends are sometimes called suicide cords because they're so dangerous, and they really should never be used. I've only seen two, one to plug a generator into a dryer outlet, and one that was used for stage lighting.