"Commander Kinsey" wrote in message
news
On Thu, 13 Jun 2019 20:56:34 +0100, Rod Speed
wrote:



"Commander Kinsey" wrote in message
news
On Thu, 13 Jun 2019 14:07:45 +0100, tim...
wrote:



"Commander Kinsey" wrote in message
news This is insane. Legally (like anyone pays any attention to these
laws)
you cannot do simple things like fitting an electrical socket to your
own
home, but you can change the brakes on your car. The second one is
FAR
more dangerous to other people!

https://www.mglondon.uk/blog/electri...n-electrician/

Not helped by it being wrong

You CAN add an extra socket as a spur yourself (subject to it being a
valid
place to add a spur)

It's adding socket as part of the ring that you can't do

Why would one be more dangerous than the other?

Its not dangerous to the individual, it's the fire risk.

Which could happen equally with either if done wrong.

Wrong. A ring main socket has something like half the ring
current going thru it when any of the sockets are delivering
power to anything plugged into them. The spur only has
that when what is plugged into its socket is taking power.

In fact it's more likely you **** up a spur, like using 15A cable
because
you only put one socket there.

That's wrong too.

15A cable protected by a 30A fuse is a fire risk.

The fuse is actually protecting against a much higher
current than the cable rating. The plug fuse will have
blown before the CU fuse unless someone does
something stupid and drives a nail thru the cable etc.

The whole idea of the ring main is dangerous anyway.

Nope.

If one cable breaks, it continues working

Yes.

with inadequate protection at the fusebox.

Nope.

One 15A cable, one 30A fuse, whoops, no tripping.

There is when someone puts a nail thru the cable.

A 15A cable will take 30A fine with no risk of fire forever.

Much better to use 30A cable and not have a ring, just a straight line.

That's wrong too. With no ring, there are a lot more
cables and so more risk of putting a nail thru one.

Rings were invented to save copper after the war

Yep.

and are dangerous.

Wrong.