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Joined: Jul 2019
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Joined: Dec 2004
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Well, while it may not sound right, it sure sounds believable. There is never seems to be any shortage of Darwin Award contestants. I can't really think of any other use. Perhaps a warped idea of safety protection. Bolt the circuit you are working on, in case someone else energizes it?
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Joined: Dec 2002
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Perhaps for a testing purpose? e.g. Identifying unconnected neutrals to pair off with corresponding lives when wiring a distribution board?
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Joined: Jul 2004
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I am surprised the prongs on the plug are not more burned. I am thinking this is a joke. It certainly was not used much.
OTOH if it was a safety thing, sort of a fail safe LOTO, that might make sense. The guy replacing the fuse might be surprised tho.
Greg Fretwell
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Joined: Apr 2005
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This looks more like it may be used for a remote switch application: The other terminal on there probably goes out to the corresponding female pin on the other side. With this you'd take a switch of any properly rated type, some lamp cord, and make a tabletop lamp switch or similar.
Why someone did it this way, I will never know.
Last edited by Hemingray; 07/26/19 10:06 AM. Reason: Forgot a part
Cliff
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Joined: Dec 2009
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OTOH if it was a safety thing, sort of a fail safe LOTO, that might make sense. The guy replacing the fuse might be surprised tho. ... when I first started, I did something like this. I was so paranoid of making a mistake that I had a multiple-stage test before working on anything. The final stage was to dead short it, first to verify the power was off and second to make sure it stayed that way. This looks more like it may be used for a remote switch application: The other terminal on there probably goes out to the corresponding female pin on the other side. I believe this is the correct answer.
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Joined: Apr 2002
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The center screw might have been a ground (EGC) ?
Perhaps it is steup to 'ring out' non-energized circuits. ie: one prong shorted to ground??
Has anyone done a continuity check? What is the center screw attached to on the receptacle side? Looks like the 'hole' the wire is poked thru could have been a ground! Or am I dreaming ??
John
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Joined: Jul 2002
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I have the New Zealand version of this plug in my toolbox. We call it an interrupted phase tap-on plug. The pin that plugs into the wall is connected via that wire to the other side (where you plug an appliance into). This allows you to measure the current flow through the appliance.
I hope this makes sense.
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Joined: Apr 2002
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Ah...you put an Amprobe on the wire!!!
John
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