DIY outdoor plug socket rcd to indoor socket? regulatioin allowed?

cherry2017

my summer house got a few sockets, I want to connect one of this indoor socket to a outdoor plug socket(buy it from B&Q), is it allowed for DIY?
I believe I need conduit to protect the wire before it reach the outdoor socket.
I also find an exposed wire for the pound pump, it was installed by previous owner or installer. 

https://www.diy.com/departments/ip66-outdoor-2-gang-double-13a-uk-plug-socket-30ma-rcd-garden-enclosure-box/5056581978370_BQ.prd

GrumpyDil

I think that is one element subject to Part P which you can do yourself but would need building control sign off. 

daivid

The socket you plan to buy is fine, my concerns would be to what and how you would be connecting it. Has the summer house been wired properly in the first place or would this socket end up as a spur off a spur (off a spur…) or the end of a daisy chain of extension leads? If you are not sure the cost of getting an electrician to do it would be well worth it.

Ectophile

The rules for what is notifiable are different between England, Wales, Scotland and Northern Ireland, thanks to devolution.

It makes a big difference how you intend to wire it in.  In England, a new circuit is notifiable to the council, but adding a socket to an existing circuit usually isn't.