"Eeyore" wrote in message
...



Common certification marks for safety are the UL mark, GS mark, TÜV,
NEMKO,
SEMKO, DEMKO, FIMKO, CCC, CSA, VDE, GOST R and BSMI. Common certificate
marks
for EMI/RFI are the CE mark, FCC and C-tick. The CE mark is required for
power
supplies sold in Europe and India.


But bringing this back to the original point, the operative word above is
"sold". If you put a transformer in a box for your own use you don't need
"type approval" (though if it's dangerous and somebody dies as a result you
might find yourself up on a charge of manslaughter).

David.