- Reaction score
- 44
Hoping someone here can enlighten me - I'm trying to work out if this is at all correct, or just utter tosh. The context here is a model train set (powered by using a "wall wart" style plug to provide 12V to the rails for powering model trains.)
I'm having a hard time believing this is correct as pretty much all such power supplies (designed for powering model train sets, both new and old) seem to be double insulated with no earth pin. But I'm certainly no reg expert.
If you can touch any part of the circuit (such as the rails) then HSE & PAT rules say the system must be earthed. Those plugs have plastic earth pins. They are not earthed. It may only be low voltage but 'double-insulated' doesn't count where you can touch metal.
I'm having a hard time believing this is correct as pretty much all such power supplies (designed for powering model train sets, both new and old) seem to be double insulated with no earth pin. But I'm certainly no reg expert.