how come when I cut through my wiring going to my 13a sockets all the sockets are still live?
- posted
8 years ago
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
Because they are on a ring main. Should you be messing with mains if you lack this basic knowledge?
MIke
Are you serious, or this a wind-up? What did you expect?
Fiver says it's Wodney...
I expected the ones furthest away from where the lecy comes in to the house to go off.
Sockets are usually wired on a ring circuit. See the illustration here:
Cut one side of the ring, and there is still an alternative path via the other.
But why do they do that?
In message , Des writes
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 :
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.
In message , Des writes
See the other wiki link I just posted.
Jim, For heaven's sake! And you a building surveyor! (But how many will take the bait?) Gareth
NT
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
ring, not spur ??
En el artículo , Tim Watts escribió:
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.
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