[Shop-talk] sparky extension cord

[Rich White]

Eric,
You are dealing with a couple of things here.  You can see the spark more
clearly in the dark, thus you noticed it.  If it is cold enough that the
heater is heating it is still on consuming electricity.  Most things are
turned off when you unplug them.  When you turn off the device the spark
happened inside the power switch, out of sight out of mind.  This is why there
are special wiring procedures and switches for explosive environments.


Rich White St. Joseph, IL USA
'63 TR3B TCF587L
That ain't a scrap pile, that is my car!