Hello from San Diego:
> I saw a product once that was double-insulated, and they removed the
> ground pin from the _IEC320_receptacle_ (on the equipment). You could
> use any power cord, regardless of whether it had a ground wire.
> Very strange looking.
The product manufacturer DID NOT remove the ground pin from the C14
receptacle.
The IEC 320, C18 appliance inlet has this configuration. It is a C14
inlet WITHOUT the ground pin.
Yes, it is compatible with the C13 (grounded) version of the cord
connector. But this is okay as, by definition, the product is
double-insulated and doesn't use the ground wire even though it
is in the cord and cord connector.
On the other hand, the C17 (two-wire) version of the cord connector
is NOT compatible with the C14 (grounded) appliance inlet.
So, we have:
Appliance inlet Cord connector
--------------- --------------
Double-
insulated C18 C17 or C13
product
Grounded
product C14 C13
Take a look at IEC 320, Figure 1.
Best regards,
Rich