On Jan 20, 10:18 am, "Ron(UK)" wrote:
Disagree, arcing in a mains socket can cause smps blow-ups. a common
cause of psu failure in the Amstrad/Sky satellite receiver which is
popular over here is a poor connection in the figure eight mains connector.

European regulations do not say a SMPS (or any appliance) need be
properly designed. Those standards address limited design issues such
as human safety threats, EMI, harmonics, etc. None address all
reliability issues. Although EMI circuits would make an appliance
even more resistant to line arcing, still, other internal design
defects may let that unit be harmed by power wire arcing.

Some early Tivos also met regulations and yet suffered internal
failures. Damage created by something that should never have caused
that damage. Regulations do not address reliability. If line arcing
causes appliance failure, then a defect exists in that appliance
design.

Excessive voltage would harm an appliance. Any 'bad wiring' that
could destroy the TV must cause excessive voltage. That voltage
typically would be made obvious by incandescent bulbs changing
intensity or failing prematurely. Any SMPS harmed by something
trivial like an arcing plug is defectively designed (and can still
conform to European regulations).

Again, firemen cited a 'wiring problem'. Without specific technical
details, that means an electrician is required.