Running Radial From Ring

[SKY]

Thanks Johno.

Sky

 

[Spudnik]

Chaps,

Please try not to use caps when posting as this does come across as shouting, although i appreciate it is sometimes done in error.

Ta.

 

[pevvers]

One double socket unfused off of each socket in 2.5. The maximum fuse for each outlet is 13A which is why it's allowed as the maximum that's going to be drawn is 26A and even that's never gonna happen with diversity and all that malarky!

 

[Jason Smith]

There is another weapon in your armoury mate, and thats to run a radial back to the board in 2.5 on a 16-20 AMP Breaker, as many sockets as you like providing the floor area the circuit covers does not exceed 50 sq. Meters.
You will need all these "how toos " when your out on your own, and someone wants a few extra sockets etc.
Dont think anyone was shouting at you bud, just trying to get heard above all the other posts. The replies you have received show that there is more than one way of skinning a cat. You will find that the design of a building will often dictate how you do something, keep a note of the ways you can do it for the future.
My answer to your question would be that
1. 1 double socket only if a spur off a ring socket.
2. As many sockets as you like if fed from a 13 FCU.It will only allow 13 amps down it so its safe. consider design here though.
3. Radial as above on 16 -20 amp breaker.

 

[eddielarge]

Sir, Why the capital letters which insinuates shouting? I'm a 1st year training elec and i'm only asking a general question.
I'm only asking if its possible and is within the regs.
I'm not saying that in some cases breaking into the ring is easier, but in some installs running 1 radial socket from a ring may be easier.

If all simple questions are answered like this maybe i should find another forum for help and advise.

Thanks guys who have guided me.

Not shouting just left Caps lock on,,

 

[Jason Smith]

quick pointer for you sky, one socket fed off a ring is called a spur not a radial. A circuit is either a Ring or a Radial.
Keep them questions coming mate.

 

[darking]

Have a look at appendix 15 on page 362 of the regs book some quite good information on there.

Best advice on this subject pennywise Good on you mate!

quick pointer for you sky, one socket fed off a ring is called a spur not a radial. A circuit is either a Ring or a Radial.
Keep them questions coming mate.

Well said Jason!

 

[SKY]

Thank you all. can't wait to get this course completed and out of the way.

I'm really enjoying it at the moment and can't wait for the practical.

At the moment we are just doing the health and safety module 201.

 

[Bromd123]

So what one is the correct answer,

one post says one radial per ring socket is ok (no fusespur)

and

Another post says that it cannot be done??

Confused..

you should not have a radial from a ring, you can have one SPUR (ie another socket) from each socket on the ring.

A radial insinuates multiple sockets on the same circuit with no return leg to the CU

Hope this helps

 

[cornburn]

To ensure that you are connecting to a ring (and not the middle of a radial)

And what's wrong with connecting to the middle of a radial?

 

[Notsosmart]

IMO not great practice, as this is how Phantom rings get introduced.

 

[cornburn]

Not sure what you mean by phantom ring? A ring from a point on a radial circuit maybe? Every radial diagram we ever did in training had several branches, some off sockets, some off JBs and some fused down and powered over 1.5mm or 2.5mm t&e. As long as the cable at any particular point can handle the load and is protected surely it's ok? It's not always practical to only extend a radial from it's far end is it?

 

[Notsosmart]

Not sure what you mean by phantom ring? A ring from a point on a radial circuit maybe? Every radial diagram we ever did in training had several branches, some off sockets, some off JBs and some fused down and powered over 1.5mm or 2.5mm t&e. As long as the cable at any particular point can handle the load and is protected surely it's ok? It's not always practical to only extend a radial from it's far end is it?

As I said (IMO) not my personal preference, also the title of the thread is Running radial (sic) from a ring so I was taking the trainee through some tests to check for a ring.

 

[wallyanker]

Thank you all. can't wait to get this course completed and out of the way.

I'm really enjoying it at the moment and can't wait for the practical.

At the moment we are just doing the health and safety module 201.

Hi Sky

Completed my level 2, very nearly finished level 3 and 17th edition booked in for July. Don't worry about the 201 health and safety, if you apply common sense to the questions, you can;'t go wrong

I was taught that if you have a ring circuit of 10 sockets for example, then you can have 10 unfused spurs (one from each socket)

I you wanted to take a spur from a spur, then it must be a fused spur to protect the cable

Hope that helps

 

[Jason Smith]

And a radial does not have to run from socket to socket, it can be a few sockets supplied from one jb, i.e. like a spider system.