Are these safe? Mark Beckett shows us what to look out for
Iwas in one of those $2-type shops in our local mall looking for some 12V-toUSB adaptors, when I spotted some cheap mains USB chargers. Presumably, they were being sold here in New Zealand as they have the pins angled. I bought one to examine more closely.
Unfortunately, the regulations in New Zealand require the live and neutral pins to be insulated and these were not, so I imagine they were produced for the Chinese market, and someone has imported them for sale here. Besides the plug issue, I was interested to see if the internal construction complied with the New Zealand regulations. My first impression of the charger was that it had some markings.
Before doing anything, I decided to see if it passed an electrical safety test.
For those who may have missed the Electrical Safety feature (February/ March 2017), as this is marked as double insulated, you test it by applying 500V DC between each of the mains pins and any metalwork that a user might make contact with. In this case, the only metalwork is the metal surround of the USB outlet, and it passed with no issues.
The point of this is to make Shed readers think about the cheap electrical equipment they may buy