UK Running a couple new sockets from mains

[Scott smit]

Hi everyone

Just looking for a little advise on if my plan to run this spur is okay I’ve drawn a diagram in hopes to make my expiation simpler

The MS square is the main socket which has not been tampered with

The F is a 13 amp fuse spur

And the S are the additional sockets which I plan to add in the exact same wiring example

I’m using 2.5mm twin core and earth cable

Edit: two of them will be single sockets the other will be a double socket

 

[Scott smit]

@nicebutdim was just making you aware that the 3 extra sockets you are adding can only handle 13A in total.
You have added a 13A fused spur at the beginning so the fuse will blow if you add large current drawing items to the 3 extra sockets.

Gotcha I don’t think what I plan to add onto the sockets will exceed that I only plan to use the sockets for a small lamp a little plug-in speaker and a small mini fridge

 

[Scott smit]

Is there an issue with me running from one socket to the next sockets or is that acceptable?

 

[brianmoooore]

This is the normal way to do it, so, as said above two cables to a socket does not necessarily indicate a RFC.

 

[Scott smit]

This is the normal way to do it, so, as said above two cables to a socket does not necessarily indicate a RFC.

From what I can tell and know about the house the socket I’m gonna run it from hasn’t ever been messed around with and was installed when the house was built how else would I check to see if it is on the correct circuit?

 

[brianmoooore]

The rating of the protective device (fuse, MCB or RCBO) will be a better clue.

 

[SJD]

Gotcha I don’t think what I plan to add onto the sockets will exceed that I only plan to use the sockets for a small lamp a little plug-in speaker and a small mini fridge

It doesn't matter what you plan to specifically power from the sockets now, someone could come along later and plug in multiple heaters, etc. You have to design the circuit to be compliant and not draw more current than the cable can handle. So if you are adding a spur and a second spur from a ring final circuit on a 32A MCB/RCBO, you need to fuse it down to 13A.

But, as Brian has said twice, what is the existing circuit breaker for the circuit? Is it 32A, or something less. For example, if only 16A, you no longer need to fuse it down.

Plus the new sockets must have RCD protection, I don't recall if this is mentioned already or not.

 

[Scott smit]

It doesn't matter what you plan to specifically power from the sockets now, someone could come along later and plug in multiple heaters, etc. You have to design the circuit to be compliant and not draw more current than the cable can handle. So if you are adding a spur and a second spur from a ring final circuit on a 32A MCB/RCBO, you need to fuse it down to 13A.

But, as Brian has said twice, what is the existing circuit breaker for the circuit? Is it 32A, or something less. For example, if only 16A, you no longer need to fuse it down.

Plus the new sockets must have RCD protection, I don't recall if this is mentioned already or not.

Okay so not sure if this helps? I’d assume since it’s an original socket it’s 32A I haven’t got anything to accurately test that tho