Where's the end of this ring?In the main only when installed very near the end of a ring final will there be a problem.
Where's the end of this ring?In the main only when installed very near the end of a ring final will there be a problem.
I've long felt that the best circuit for kitchen appliances is a radial.OK start and end of ring final is at the consumer unit.
I would consider a kitchen ring final to be dedicated to kitchen appliances so would not be included in the appendix 2 kW suggestion.
If we consider the ring final of having a resistance of say 1.92Ω then at the centre of the ring the load on both legs will be even with an impedance of 0.96Ω. However for the first 10 meters or so if there are sockets available then if the full 32A is drawn then over the permitted 21A will be drawn from one leg. It is up to the kitchen designer to ensure heavy usage appliances are not grouped to one end of the ring final, the person responsible for the design has to ensure where a ring final is used for kitchen appliances the load is reasonably even distributed. Since we have dedicated bays and dedicated sockets in the kitchen this is possible, as to if every electrician actually does consider this is something else, but they have signed that they have by signing the installation certificate.
Because most people have nowhere else to put them.Why we put a washing machine and a tumble drier in a kitchen I don't really know.
Because many people find that the rooms in their house are just too small, and/or that there simply isn't enough storage space. Many houses built these days don't even have enough storage space for there to be anywhere to put a vacuum cleaner. And the garage is probably not big enough to put a car in anyway, not if you want to be able to get in and out of the car except via the sunroof once you've driven in.And clearly others have the same idea. Walk up and down my street you will see washing machines and tumble driers in many of the garages very few actually have cars in them, many also converted into extra rooms.
In the common situation of a cable with a (undoubtedly 'conservative') CCC of 27A protected by a 32A OPD, if you do the calculations you will find that you would have to have the entire 32A load very close to one end of the ring to even 'technically' overload any of the cable.I've never been keen on ring final circuits at all, for some of the reasons already outlined (possibility of excess load near to one "end" of the ring etc.).
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