On Fri, 31 Jan 2014 09:06:03 -0500, "dadiOH"
wrote:

Back stabbed connections are not reliable in my
experience. For example, my wife always used the same
wall receptacle to plug the iron in. One day I plugged
something in and witnessed a bright spark. The outlet was
back stabbed - push in connection. My understanding is
the connections are not reliable. Poor connection verses
the screw down way. Those experienced here can better
explain it to you. Poor connection; causes heat and more
likely to fail.

There are back stabs and then there are back stabs...some (industrial grade,
moderately more expensive) have a screw down clamp for the stab. Those are
fine. Most residential back stab devices are for 14 gauge wire; industrial
10-12 gauge.

Yes. Derby pointed out:

....
"This is _not_ a back stab device.

http://inspectapedia.com/electric/Re...0054_DJFcs.jpg

I'm just to make that there is no confusion between the 2 types of
receptacles."

....

I'm familiar with them and have used one. I have a GFCI 15 Amp
receptacle that uses the same method.