29 Aug
2012
29 Aug
'12
10:31 a.m.
On Tue, 28 Aug 2012 20:28:07 +0100 (BST), ard at p850ug1.demon.co.uk (Tony
Duell) wrote:
Of course wall-warts are country specfic in that the
mains voltage and
conenctor are different in differnet countries. So I've probably never
seen a modern one intended for use in the USA and thus UL listed
But the ones we get over here have no protective devices at all. No fuse,
no thermal fuse. If you are lucky, the resistors in a swithc-mode wall
wart are fusible, flameproof types. Most of the time they are not.
In Europe, mains
devices have to be CE-certified and display the CE mark.
But the manufacturers certify themselves that their products are
compatible with the regulations, nobody actually tests them unless it is
necessary to prove that they do not comply, e.g. if a competitor reports
them to the authorities as being non-compatible, or they are suspected
of being the cause of an accident, or they are suspected of being fake.
Devices made in China may show the "China Export" symbol, which is very
like the CE mark and may be easily confused with it (= is meant to be
confused with it?) http://www.icqc.co.uk/en/china-export.php but does
not mean that the device complies with EU regulations.
/Jonas