jim_in_sussex wrote:
Grumps wrote:
Had a single storey rear extension done a few months back and this
obviously included an extension to the mains ring. Is it true that
wiring regs require any socket that can be potentially used outside
(extension lead) to be RCD protected?

Yes

See On-Site Guide para 3.6.1 (iii) & (iv)

or regs sect 471-08-04 & -05

HTH

Ta. I just read some of PratP myself.
Can the RCD protection be provided locally (i.e. by replacing the sockets
with RCD ones), or MUST it be done by modifying the fuse board etc?