On 2 Jul, 16:45, "Dave Plowman (News)" wrote:
In article .com,
wrote:

Who cares? I unplug and plug in items that are turned on all the time,
worst case you get a little spark, it doesn't cause any problems. It's
not hot enough to pit the plug prongs or contacts.
Its well known that repeated small sparks make a total mess of the
contact surface. This was one of the problems of our olf round pin
system half a century ago.

You'd have to explain that. Most of the old round pin sockets were
switched - unswitched was a short lived fashion with 13 amp stuff. At
least in my experience.

The old round pin sockets were far more likely to be overloaded, though.

Round pin systems did not consistently have good contact arrangement,
leading to frequent bad connections between plug & socket, producing
the same type of damage as occurs with unswitched sockets.


NT