The product standard ( BS 7288) says they are not suitable for providing Additional protection.
It doesn't quite say that. That would put it in the the same category as a BS for chocolate tea pots. I think what's written could equally be read as "the the device doesn't protect the upstream part of the circuit and that additional protection [for that - if any is required] will have to be provided elsewhere".
They do not provide isolation as they do not meet the minimum contact clearance.
Oh yes they do - on a SRCD you just pull the plug out (just like for unswitched BS 1363 sockets). Besides is there actually a requirement for devices providing additional protection only to provide isolation? 531.1.1 only talks about devices providing ADS - additional protection is technically a different beast.
The product standard ( BS 7288) says they are not suitable for providing Additional protection.
It doesn't quite say that. That would put it in the the same category as a BS for chocolate tea pots. I think what's written could equally be read as "the the device doesn't protect the upstream part of the circuit and that additional protection [for that - if any is required] will have to be provided elsewhere".
They do not provide isolation as they do not meet the minimum contact clearance.
Oh yes they do - on a SRCD you just pull the plug out (just like for unswitched BS 1363 sockets). Besides is there actually a requirement for devices providing additional protection only to provide isolation? 531.1.1 only talks about devices providing ADS - additional protection is technically a different beast.
