Admin Table of Contents
- 1 What is a final ring circuit?
- 2 What is the difference between a ring main and a ring final circuit?
- 3 How many 13A sockets can be on a radial circuit?
- 4 How do I know if my circuit is radial or ring?
- 5 When would you use a radial circuit?
- 6 How many radial sockets does a Ring Main have?
- 7 Can you spur off a radial?
What is a final ring circuit?
A ring final circuit or ring circuit (informally also ring main or just ring) is a wiring technique developed and used in the UK that uses two conductors for each of live, neutral and earth to supply each connected socket (or other load).
What is the difference between a ring main and a ring final circuit?
A ‘Ring’ is a ring that is stuck on your finger or somewhere else; a ‘ring main’ is a distributed electrical supply that is fed along two separate cables in either a parallel path or in a diverged path to various points to join to provide further points of supply; ‘a ring circuit’ is a distributed supply circuit …
What is a radial circuit?
A radial circuit is a type of fixed wiring that feeds one piece of suitable cable from one power point to another. This type of linear power circuit is commonly used to wire household equipment such as cookers and boilers, lighting points and sockets.
How many 13A sockets can be on a radial circuit?
The IET Wiring Regulations (BS 7671) permit an unlimited number of 13A socket outlets (at any point unfused single or double, or any number fused) to be installed on a ring circuit, provided that the floor area served does not exceed 100 m2.
How do I know if my circuit is radial or ring?
Undo the Live (RED) terminal and remove the two red wires, now using a multi meter switch it to OHMS and place one of the leads on each of the red wires or use a continuity tester, the meter should read Zero or very low resistance, some meters will emit a bleep also, this means that there is a circuit there and that it …
How many Spurs can I have on a ring main?
A spur can be connected to an existing socket, on either a ring main or a radial circuit, providing that socket does not already have a spur. That is only one spur per socket is allowed and the number of spurs must not exceed the number of sockets.
When would you use a radial circuit?
A radial circuit is a linear mains power circuit found in all homes to feed sockets, lighting points and other specific items like showers, cookers, boilers or immersion heaters etc. It is simply a length of appropriately rated cable feeding one power point then possibly going on to the next.
How many radial sockets does a Ring Main have?
BS 7671 allows an unlimited number of 13A fused spurs to be installed on a ring main so the fused spur that your electrician has installed complies with the requirements for ring mains….See Also:
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Are ring circuits still used?
Yes, ring mains (more correctly called ring final circuits these days) were and still are the norm for most UK dwellings. A very common arrangement was two ring final circuits, one for upstairs and one for downstairs.
Can you spur off a radial?
The simple answer to this question is yes you can and this is known as a spur, or spurred socket, but there are a few things that you nee to be aware of. You can add one further accessory or socket off of a single socket present in a radial circuit and no more.