Spurs

[Goldberg]

in the absense of you explaining WHY he's wrong, then your coment of "you're wrong" to a stateent that is categorically true, then it it you that is wrong.. no matter how you try and spin it.

I'm not trying to spin anything - Chri5's comment was incorrect in the context of this topic.

If you reword his comment into something else, and put it in a different context, then I agree that it would be correct.

For example: An unfused spur from a ring final circuit can't carry the load of two sockets if it is run in 2.5mm² T&E.

But do you still think this holds true in all circumstances?

the comment that "A single spur from a ring circuit in 2.5mm TE can handle 1 x double socket." is absolutely correct.

Really? How about if the T&E was in conduit in thermal insulation? I can't see how it would carry 26A safely.

And before you start down the track of saying that a double socket can't support 26A, there's nothing to stop someone plugging two 3kW loads into a double socket.

 

[ColJack]

and now that you've explained why you think it's wrong, it makes more sense.
however, I stand by my comment that just stating that he is wrong for a statement that is true under normal circumstances, is in itself wrong.
under specific circumstances, yes a spur wired in 2.5mm T+E cable is not capable of supplying a double socket safely.
since the OP hasn't specified a specific set of circumstances then a generic method of installation must be assumed, this in normally clipped direct ( ie plastetred into a wall ) and under those circumstances "A single spur from a ring circuit in 2.5mm TE can handle 1 x double socket."

 

[safesinbad]

A single spur from a ring circuit in 2.5mm TE can handle 1 x double socket.

You're wrong.

Adding on a 3 socket fitting could / will overload the circuit.

You're wrong.

Best thing to do is to fit a 13A fused spur before the 1st socket to prevent overloading on the existing single socket and the 3 way socket you intend to fit.

That's exactly what's he's already doing.

So you will end up with a max load across the 4 socket outlets (1 +3) of 13A x 230v = 3000w (about!).

There will be three sockets, not four.

That's fine for light loads such as a digital TV, a lamp etc..

It's also fine for heavy loads, such as a washing machine, tumble dryer, iron, or fan heater. In fact, anything that can be plugged into a socket.

You will have limitations, so plugging in say electric heating, an iron, hair straightners isn't sensible.

Why not? What do you think would happen?

The only way to avoid the load restriction is to open up the ring that the spur is fed from and make both the existing single socket and the new 3 way socket part of the ring.

There would still be a load restriction.

diversity

 

[Goldberg]

I stand by my comment that just stating that he is wrong for a statement that is true under normal circumstances, is in itself wrong.

I agree. Point well made. However, Chri5's statement is false in all circumstances except where the cable is clipped direct or embedded.

since the OP hasn't specified a specific set of circumstances then a generic method of installation must be assumed...

If you want to assume something then go ahead.

Personally, I never assume anything. I don't even assume that an installation has the same polarity as it did when I tested it the day before.