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Default Why the wide prong on a plug?

On Sun, 26 Oct 2008 21:48:21 -0700, Donna Ohl
wrote:

On Sun, 26 Oct 2008 21:39:27 -0700 (PDT), marlboroman wrote:

OK, I understand that on a lamp it's a good idea, or the socket shell
and bulb threads will be live if the hot side of the power line is
connected to that part of the socket.


Maybe they want the hot and neutral to be determinate just to protect
against lawsuits?

Or, maybe it's a UL standard even for plastic-housed appliances?


What do they mean by double insulated?

One insulation is the plastic case. Maybe the other one is
figurative, that they do the rest of the wiring as if it were a metal
case?