On 15/11/2020 14:55, The Natural Philosopher wrote:
On 15/11/2020 14:15, Andy Burns wrote:
The Natural Philosopher wrote:

ARW wrote:

The small ones often do not have the functional earth fly lead.

No RCD/RCBOÂ* has a 'functional earth fly lead'.

The white lead here ...

....is not part of the trip function.

It is - but it adds a capability that normal RCDs don't have.

No idea what its for, perhaps to
earth something in the switch...

It will allow it to trip in the unlikely event that you get a neutral
disconnection. (which on a PME supply could leave all earthed metalwork
in the house at mains voltage)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/