Wiring for outside socket

[Edgers]

Hi - installing this on the outside wall of my house. Cable is usually 3 core but socket has 2 earth terminals. Do I junction the earth cable into two and attach? What do I do?

 

[newfutile]

Either one is OK,if you look you should see a metal bar linking the 2 cpc / earth terminals

 

[Edgers]

Either one is OK,if you look you should see a metal bar linking the 2 cpc / earth terminals

Thanks so much for replying and yep, I can see the bar now. One other question, which is probably really stupid, but for now can I wire this like an extension lead - plug in to another socket - or must it be hard wired to the circuit? It's only to run some outdoor lights and a hot tub pump. These were running from an extension reel before
Thanks in advance for any suggestions