Sorry guys I'm sure these points have been raised before but been busy searching.
I have been sent a diagram by the shop where we purchased our kitchen for the electrical wiring requirements and positions. I am a electrician to the 17th edition by trade but it's not my every day job nowadays so I'm questioning myself and require some confirmation.
One of the items is a 7KW induction hob for the island and the drawing states a 2.5mm cable to the cuboard under the hob??. This is scary to me as I work this out at around 28A which I believe is around the max the cable could carry even without any factoring taken into consideration? There is some led lighting also on the island which I take they will supply from this cable but obviously that will be minimal (I take it this would need to be fused down?) but more importantly a 13A pop up socket has also been added to the island and therefore had just put this part of the installation well beyond what they have originally stated.
The second major point is the ovens and two of them. One is a standard fan oven rated at 3.45Kw and the other is a smaller microwave combination oven rated at 3.6KW so if im correct both together are roughly 7KW and therefore roughly 28A? On the drawing they are showing 1 standard 13A double socket outlet! Surely just one of these item exceeds the maximum as even a double outlet its max load is still 13A or 3KW there abouts no matter how many outlets you have as far as I'm aware they are still only rated 13A. So my point is that one oven is slightly over but the two ovens are definitely a no no even if they were to have plug tops on which as suggested by the shop may be the case? Not sure how an oven rated at 3.6KW can possibly have a plug on?
Thirdly the drawing states a 2.5mm cable to be left in cupboard below sink for both a 2.5Kw dishwasher and also a instant hot water tap which states it needs a 10A supply but is rated at 1.5Kw? These two items should be fine if they are using say a 20A putlet plate but I have been told to leave a cable as on the island so not sure?
Normally I would place a double pole switch for the dishwasher above the worktop and not sure where the local cooker point isolators will be for the ovens and hob? Is it ok to place these within a cupboard especially the under sink position? I also take it they will tap off at various points for the led lighting but as far as I'm aware this would need to be a fused spur downrated to 3A?
Anyway I have added the so called plans below and would really appreciate your help as I think it must be me going insane?
Many thanks, Keith
I have been sent a diagram by the shop where we purchased our kitchen for the electrical wiring requirements and positions. I am a electrician to the 17th edition by trade but it's not my every day job nowadays so I'm questioning myself and require some confirmation.
One of the items is a 7KW induction hob for the island and the drawing states a 2.5mm cable to the cuboard under the hob??. This is scary to me as I work this out at around 28A which I believe is around the max the cable could carry even without any factoring taken into consideration? There is some led lighting also on the island which I take they will supply from this cable but obviously that will be minimal (I take it this would need to be fused down?) but more importantly a 13A pop up socket has also been added to the island and therefore had just put this part of the installation well beyond what they have originally stated.
The second major point is the ovens and two of them. One is a standard fan oven rated at 3.45Kw and the other is a smaller microwave combination oven rated at 3.6KW so if im correct both together are roughly 7KW and therefore roughly 28A? On the drawing they are showing 1 standard 13A double socket outlet! Surely just one of these item exceeds the maximum as even a double outlet its max load is still 13A or 3KW there abouts no matter how many outlets you have as far as I'm aware they are still only rated 13A. So my point is that one oven is slightly over but the two ovens are definitely a no no even if they were to have plug tops on which as suggested by the shop may be the case? Not sure how an oven rated at 3.6KW can possibly have a plug on?
Thirdly the drawing states a 2.5mm cable to be left in cupboard below sink for both a 2.5Kw dishwasher and also a instant hot water tap which states it needs a 10A supply but is rated at 1.5Kw? These two items should be fine if they are using say a 20A putlet plate but I have been told to leave a cable as on the island so not sure?
Normally I would place a double pole switch for the dishwasher above the worktop and not sure where the local cooker point isolators will be for the ovens and hob? Is it ok to place these within a cupboard especially the under sink position? I also take it they will tap off at various points for the led lighting but as far as I'm aware this would need to be a fused spur downrated to 3A?
Anyway I have added the so called plans below and would really appreciate your help as I think it must be me going insane?
Many thanks, Keith