Additional sockets in the conservatory

 Hi Guys
I need advice on how to add additional sockets in the conservatory.
A single cable is brought out from the consumer unit in the house.
It is run outside the house to the conservatory where there are 3 double sockets.
I can not see the returning cables so it is not a ring circuit ... I think

Will it be OK, if I cut the cable halfway and add another 3 sockets?

Consumer unit-> RCD B16-> 2.5m Twin core +Earth cable-> socket 1-> socket 2-> socket 3

Please see picture



Thank you

Are these new sockets outdoors? and what do you plan to plug into them?

as it's on a 16A MCB it sounds like you have a dedictaed radial cct, in which case you can add sockets in the way described.  Clearly be careful, and I would want an RCD on the cct at the CU - how old is the CU?

Post edit...didn't read the op properly!

Hi
3 additional socket will be in garage (indoor)
I will use them for fridge, printer, tools chargers (makita)

Consumer unit was replace in 2015