Moving to radials in Kitchens

[Bobby34]

I'm going to quote for a kitchen rewire shortly where the client is having a new kitchen fitted and new appliances and am contemplating doing away with the traditional 2.5 ring final on a 32amp mcb and running a 4mm radial instead. Clipped direct is 36amp so could still use a 32amp but with todays energy efficiency could probably even use a 20amp mcb and have the option to move up to 32 if needed.

Just wanted to see what peoples thoughts are whether anyone has done it or if the ring final in the kitchen is here to stay?

 

[telectrix]

So that 's what Pythons "Ministry of silly walks is about" important training for the youth.

egggsackkly.

 

[l4urence]

I've been using 4mm radial more recently but it's not a silver bullet due to C factors mentioned earlier. I've also started putting the washer dryer circuit on a ring - which is effectively 5mm - perfectly balanced and no sockets - just the connection units for both. If using MCBs on 4mm I usually start off with 20A and change it to 32 later but then I get a better idea about what was added - RCBO's a bit more expensive, so you need to be mindful of the cost. I think the next regs will see thermal efficiency on steroids and we'll be running heavier cables at low current.

 

[Pete999]

I've been using 4mm radial more recently but it's not a silver bullet due to C factors mentioned earlier. I've also started putting the washer dryer circuit on a ring - which is effectively 5mm - perfectly balanced and no sockets - just the connection units for both. If using MCBs on 4mm I usually start off with 20A and change it to 32 later but then I get a better idea about what was added - RCBO's a bit more expensive, so you need to be mindful of the cost. I think the next regs will see thermal efficiency on steroids and we'll be running heavier cables at low current.

Why 5mm on a ring

 

[Dave OCD]

not me mate.i got no nerves. guy once told me i had the emotional responses of a house brick.

Are you telling me that the amazing unbelievable LFC comeback on Tuesday night didn't cause a flicker of emotion Tel ? I had tears on the go.

 

[Ian1981]

I've been using 4mm radial more recently but it's not a silver bullet due to C factors mentioned earlier. I've also started putting the washer dryer circuit on a ring - which is effectively 5mm - perfectly balanced and no sockets - just the connection units for both. If using MCBs on 4mm I usually start off with 20A and change it to 32 later but then I get a better idea about what was added - RCBO's a bit more expensive, so you need to be mindful of the cost. I think the next regs will see thermal efficiency on steroids and we'll be running heavier cables at low current.

Deleted

 

[Phillip]

Personally if your fed up with ring mains wire radials 2.5 mm off 20 amp mcb...easy

Oven

Personally if your fed up with ring mains wire radials 2.5 mm off 20 amp mcb...easy

2.8 KW oven, 3kw ish kettle = nuisance tripping.

 

[Dave OCD]

All electric ovens [and most certainly one above 2kW] should be on a dedicated circuit [Or with a hob sharing the circuit].

 

[chris day]

Why do you not want to run a 32a ring?
the only issue with 4mm radials is the looping in and out of accessories can be tight.

The last kitchen job i done was overkill because the client had not an idea if they wanted 1.2kw kick space heaters etc :
x1 40a circuit for oven
x1 32a ring for all kitchen appliances and adjoining utility room
x1 32a ring for all sockets within the kitchen

over kill but wont get any issues with overloading, plus sometimes 4mm cable on a 32a is a grey area given installation method

 

[chrisdungan]

put whatever you think is best, more is better than less, cable is the cheapest bit. Kitchens and bathrooms have become a major stage production.
BUT
what about the latest fashion here in New Zealand for 6kw++ induction hobs plus 1 or even 2 ovens?

We don't do ring circuits here in NZ but I would run at least 2 radial 2.5mm circuits around the benches ( for appliances, microwaves, rangehood, usb chargers etc etc) plus a 2.5 circuit to the island bench for the dual dishdrawer, instant hot water as well as a couple of 4mm or 6 mm circuits for the ovens and hobs. Yes there are some up market Kiwi kitchens that have 2 hobs and 2 ovens.
We never put clothes washer/dryers in the kitchen, they go in either the laundry or laundry alcove in the double or treble garage.
Oh and here in NZ 25amp breakers are as common as muck

 

[Phillip]

Personally if your fed up with ring mains wire radials 2.5 mm off 20 amp mcb...easy

2.8kw oven, 3kw kettle = nuisance tripping.

 

[Red Tony]

What's the reason you don't want to put a ring final in for a kitchen? PS is this the same guy as all of a sudden we have threads galore on preferance to radials over rings??

 

[Squid]

i don't give a monkey's for all this pc shyte. if we'd had it back in 1940, we'd not have gone to war, afraid of offending despots with Charlie Chaplin moustaches .

History wasn't your best subject at school was it Tel...........

;o))))))))

 

[Squid]

So that 's what Pythons "Ministry of silly walks is about" important training for the youth.

Filmed in my local sweet shop when I was a kid, bit of trivia there.......

 

[Squid]

I just love these "Smart TV's" with camera's that you can hack via the internet, managed to film a get together at Tel's when Pete was there with a couple of mates.........