Extension of ring final circuit

RSV

Joined
25 Jan 2019
Messages
6
Reaction score
0
Country
United Kingdom
Hi there all,

I have a property and I have noticed the following wiring (please see below) in one of the rooms in the house.

It looks like the ring main has been extended.
A single 2.5mm Twin + Earth cable (in red) is providing power from the consumer unit which feeds a chain of electrical sockets via a junction box which returns back to the junction box.

Every socket has two cables (feed in & feed out). To my understanding given that each socket has two cables (provided continuity is sound) the load would be shared between cables to ensure no one cable is overloaded.

However couldnt the single cable giving power from the consumer unit be overloaded or would that be fine given that the power returns back via the junction box?
 

Attachments

  • socket diagram.png
    socket diagram.png
    53.1 KB · Views: 83
Sponsored Links
It depends on the rating of the MCB.

25A or less would be alright. If it is 32A then it is not satisfactory.
 
Thought so, on a 32a breaker the cable coming from the consumer unit could be overloaded right?
 
Yes it could be.

Are you sure it is 2.5mm²? Single core conductors? Larger cable has seven-strand conductors.
 
Sponsored Links
Thank you for this.
Yes I am pretty certain it is 2.5mm².

Thanks for the advice.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top