No, but there are three sockets on the end of each spur which I understand is frowned upon.
Should outer shield of T&E enter back box?
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No, but there are three sockets on the end of each spur which I understand is frowned upon.
Ah, that's different.
I suppose you are sure it is a ring?
I suppose you are sure it is a ring?
Fairly sure. The two sockets that (I think) are on the ring have a cable in, a cable out, and the aforementioned spur.
I must say that in the nine years I've lived here, I've never had any issues with the electrics at all. But I'm a bit OCD about such things and it niggles me that it's not quite right, even if it is trouble-free.
I must say that in the nine years I've lived here, I've never had any issues with the electrics at all. But I'm a bit OCD about such things and it niggles me that it's not quite right, even if it is trouble-free.
So would a radial.
What is the rating of the MCB for the circuit and what is the size of the cable?
Looks like a ring.
Well let's hope so, eh?
I disagree. BS7671 requires that the cable be protected against abrasion.
Indeed (and protected against all sorts of other environmental influences).
However, 'abrasion' requires (usually repeated) relative movement, and with the exception of the incredibly improbable 'building movement' which has been mentioned, that is not going to happen with the fixed wiring to an accessory.
Kind Regards, John
It may be unlikely, but the fact remains that it hasn't been protected against. Personally speaking it is an early indicator to me of an absolutely horrendous job.
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Three 2.5mm² T&E cables fit through a 20mm grommet just fine. Am I missing something here?
I couldn't make three fit. Perhaps there's a knack to it that I am missing.
*edit*
I just tried it with three fresh offcuts and it fit just fine. The problem earlier I think was that this was old, installed cable with bent wires and frayed/split sheathing. I couldn't get that through the grommet without pushing the grommet out.
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I would say that is very debatable. I would have thought that being solidly buried in plaster (and the same plaster as retains the back box) would be about as good a protection against abrasion ("scraping or wearing away") as anything else.
That may well be true, but it's a totally different issue.
Kind Regards, John
Very often the plaster is not providing such protection at the point of entry to the box, though. Indeed this is the case with two different jobs I have been at in the past two days. It also smacks of crap installation practices regardless.
Protection against what - earthquakes? What other than earthquakes would result in repetitive relative movement between cable and box?
Whether or not it represents 'crap installation practice' presumably depends whether it was done because an installer who believed that it should be done simply didn't bother or because it was the considered opinion of the installer that it was not necessary.
Kind Regards, John
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