how to connect the following?

[sparkymarky123]

Is the existing ring that you are using protected by an RCD?

Yep it is

 

[AlanWirral]

As said what's been done isn't 'Wrong' as such but when maximum current is drawn it could trip and basically annoy you. Had a mate who did something very similar actually.

More annoying I advised him what to buy and I offered to get it all trade price, like 54 said...new circuit from from the CU to a 3 way board in garage. Running a compressor/lights inc flood/sockets. Turns out he spured off the house ring which at Xmas last year was already getting battered by his kids. He was in the garge with his heater/lights on and as soon as the compressor started it tripped the ring. He's been asking me to 'Sort' it ever since