Bill Woods wrote:

What does "double insulated" mean in actual practice?

I guess its a derivative of the literal term. There are 2 layers of
insulation between live and metal casing or user, wire ends are cable
tied together so that if one comes out it doesnt wander far enough to
touch anything dangerous, and the insulation test v is much higher. No
earth connection is used.

Thats the meant-to. In practice there are plenty of [[]] products that
do not meet the above at all, japanese stereos and spotlights
especially.


NT