Moving to radials in Kitchens

[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.