how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Because they are on a ring main. Should you be messing with mains if you
lack this basic knowledge?

MIke

On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On 26/05/15 10:59, Roger Mills wrote:
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?

Fiver says it's Wodney...

"Roger Mills" wrote in message
...
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.


I expected the ones furthest away from where the lecy comes in to the house
to go off.

On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.



Cheers,

John.

But why do they do that?

In message , Des
writes

"Roger Mills" wrote in message
...
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?


I expected the ones furthest away from where the lecy comes in to the house
to go off.


As someone else said, in the UK, sockets are generally wired in a ring -
and have a pair of cables supplying them so to isolate the socket you
need to disconnect both cables.

Have a look at the wiki for starters :
http://wiki.diyfaq.org.uk/index.php?title=Ring_circuit.

It's important as was suggested, that you understand the basics of this
before working on the system. and understand other arrangements of
socket wiring you might come across.

Why were you cutting the cable? What are you wanting to achieve? If you
are cutting the cable to remove a socket you need to remake the ring.
--
Chris French

In message , Des
writes

"John Rumm" wrote in message
news:X66dnbTMT8uR1_nInZ2dnUVZ8iednZ2d@brightview. co.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.


But why do they do that?


See the other wiki link I just posted.
--
Chris French

Des wrote

how come when I cut through my wiring going
to my 13a sockets all the sockets are still live?

Because its on a ring main and you only
cut part of the wiring going to the sockets.

"Des" wrote in message
...
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Jim,
For heaven's sake!
And you a building surveyor!
(But how many will take the bait?)
Gareth

On Tuesday, 26 May 2015 11:27:21 UTC+1, Des wrote:
"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.

But why do they do that?

http://wiki.diyfaq.org.uk/index.php?title=Ring_circuit


NT

"Tim Watts" wrote in message
...
On 26/05/15 10:59, Roger Mills wrote:
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?

Fiver says it's Wodney...

You've just lost that fiver, again.

"Des" wrote in message
...

"Roger Mills" wrote in message
...
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?

I expected the ones furthest away from where the lecy comes in to the
house to go off.

You don’t understand how ring mains work.
http://en.wikipedia.org/wiki/Ring_circuit

"John Rumm" wrote in message
news:X66dnbTMT8uR1_nInZ2dnUVZ8iednZ2d@brightview. co.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.



Cheers,

John.

But why do they do that?

Go check out ring mains on the internet, basically two feed are better than
one.

I was tempted to use a few of Adams favourite words here but then thought,
no lets give Des the benefit of doubt.

Mike

"Des" wrote in message
...

"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.

But why do they do that?

Because it works better.

On 26/05/15 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?


ring, not spur ??



--
New Socialism consists essentially in being seen to have your heart in
the right place whilst your head is in the clouds and your hand is in
someone else's pocket.

En el artículo , Tim Watts
escribió:

Fiver says it's Wodney...

http://tinyurl.com/RodSpeedFAQ

--

In article , Rod Speed
wrote:


"Des" wrote in message
...

"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via
the other.

But why do they do that?

Because it works better.

Not really, but it saved copper in the 1950s,

--
From KT24 in Surrey

Using a RISC OS computer running v5.18

In article ,
Rod Speed wrote:


"Tim Watts" wrote in message
...
On 26/05/15 10:59, Roger Mills wrote:
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?

Fiver says it's Wodney...

You've just lost that fiver, again.

You should be worried that every stupid/ignorant comment gets blamed on
you.

--
*My wife and I had words. But I didn't get to use mine.

Dave Plowman London SW
To e-mail, change noise into sound.

On 26/05/2015 11:27, Des wrote:
"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via the
other.

But why do they do that?

It allows you to create a 7.2kW circuit using smaller an lighter cable
than would otherwise be required. Makes it cheaper and easier to wire.
It also performs better under a number of fault conditions, and gives
less voltage drop effects from high loads.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

En el artículo , Dave Plowman (News)
escribió:

You should be worried that every stupid/ignorant comment gets blamed on
you.

Don't forget his many sockpuppets.

--

In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial can't
achieve.

--
*Ever stop to think and forget to start again?

Dave Plowman London SW
To e-mail, change noise into sound.

On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial can't
achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the
load that's meant to be divided between the two. Isn't that going to
lead to overheating?

In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial can't
achieve.

a radial with a single socket or appliance at the end also gives a
consistent result.

--
From KT24 in Surrey

Using a RISC OS computer running v5.18

In article ,
GB wrote:
On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials.
It gives more consistent results over the entire circuit which a
radial can't achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the
load that's meant to be divided between the two. Isn't that going to
lead to overheating?

Don't have a break in the circuit, then. It's not like a vacuum cleaner
where the flex can get damaged in use.

--
*Friends help you move. Real friends help you move bodies.

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
charles wrote:
In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials.
It gives more consistent results over the entire circuit which a
radial can't achieve.

a radial with a single socket or appliance at the end also gives a
consistent result.

Very true. But then the fusebox would be the size of the house here.

--
*Why were the Indians here first? They had reservations.*

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials.
It gives more consistent results over the entire circuit which a
radial can't achieve.

a radial with a single socket or appliance at the end also gives a
consistent result.

Very true. But then the fusebox would be the size of the house here.

and I saw a house rewired to radial wiring near here a few yeara ago. Yes,
a wall sized distribution board.

--
From KT24 in Surrey

Using a RISC OS computer running v5.18

In article ,
charles wrote:
a radial with a single socket or appliance at the end also gives a
consistent result.

Very true. But then the fusebox would be the size of the house here.

and I saw a house rewired to radial wiring near here a few yeara ago.
Yes, a wall sized distribution board.

If it really was only one socket per radial, the rooms would be half sized
due to all the cable.

--
*We never really grow up, we only learn how to act in public.

Dave Plowman London SW
To e-mail, change noise into sound.

On 26/05/2015 17:06, Dave Plowman (News) wrote:

Don't have a break in the circuit, then. It's not like a vacuum cleaner
where the flex can get damaged in use.


But they do get breaks so that's a silly argument.

"Des" wrote in message
...
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Because you are a ****ing idiot?

"GB" wrote in message
...
On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial
can't
achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the load
that's meant to be divided between the two. Isn't that going to lead to
overheating?


It could do depending on the load of the circuit and the installation
methods.

And of course a break on the earth of a radial circuit could be worse.

--
Adam

"charles" wrote in message
...
In article , Rod Speed
wrote:


"Des" wrote in message
...

"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:

how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?

Sockets are usually wired on a ring circuit. See the illustration
he

http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w

Cut one side of the ring, and there is still an alternative path via
the other.

But why do they do that?

Because it works better.

Not really,

Yes it does, particularly with high loads like electrical heaters.

but it saved copper in the 1950s,

Saves copper now too.

"Dave Plowman (News)" wrote in message
...
In article ,
Rod Speed wrote:


"Tim Watts" wrote in message
...
On 26/05/15 10:59, Roger Mills wrote:
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?



Are you serious, or this a wind-up? What did you expect?

Fiver says it's Wodney...

You've just lost that fiver, again.

You should be worried that every stupid/ignorant comment gets blamed on
you.

I couldn’t care less what terminal ****wits like you and him do.

On Tuesday, 26 May 2015 15:33:23 UTC+1, GB wrote:
On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial can't
achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the
load that's meant to be divided between the two. Isn't that going to
lead to overheating?

Not to enough extent to be a risk. A ring circuit with a partial break is many times more dangerous.


NT

"charles" wrote in message
...
In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial
can't
achieve.

a radial with a single socket or appliance at the end also gives a
consistent result.

Yes, but normal GPOs aren't done like that, and if they are that
wastes a hell of a lot of copper and produces one hell of a mess
of cables back at the breaker box.

wrote in message
...
On Tuesday, 26 May 2015 15:33:23 UTC+1, GB wrote:
On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial
can't
achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the
load that's meant to be divided between the two. Isn't that going to
lead to overheating?

Not to enough extent to be a risk. A ring circuit with a partial break is
many times more dangerous.


As BS 7671 does not mention partial breaks then please enlighten me.

--
Adam

On Tuesday, 26 May 2015 21:11:05 UTC+1, ARW wrote:
nt wrote in message
...
On Tuesday, 26 May 2015 15:33:23 UTC+1, GB wrote:
On 26/05/2015 15:20, Dave Plowman (News) wrote:
In article ,
charles wrote:
Because it works better.

Not really, but it saved copper in the 1950s,

It does do that. But actually makes more efficient use of materials. It
gives more consistent results over the entire circuit which a radial
can't
achieve.


If there is a break in the circuit, all the sockets may still work. The
circuit breaker won't trip. Yet one arm of the ring is taking all the
load that's meant to be divided between the two. Isn't that going to
lead to overheating?

Not to enough extent to be a risk. A ring circuit with a partial break is
many times more dangerous.


As BS 7671 does not mention partial breaks then please enlighten me.

bad connection. Radials suffer much worse from them than rings.


NT

On 26/05/2015 23:05, wrote:


bad connection. Radials suffer much worse from them than rings.

A ring has more connections so a bad one is more likely.
The effects are different.

In article . com,
dennis@home wrote:
On 26/05/2015 23:05, wrote:


bad connection. Radials suffer much worse from them than rings.

A ring has more connections so a bad one is more likely.
The effects are different.

and if there is a break in a radial circuit it is very obvious. Not so in a
ring.

--
From KT24 in Surrey

Using a RISC OS computer running v5.18