Neff oven and microwave combi

[Novice]

Hi all, I am new to this forum. I was wondering if someone can help me with this issue I have.
i have just installed a new kitchen and have a Neff oven 17 amps and a neff microwave combi 14 amps, they are side by side. Now I installed a 10 mm cable because I didn't know what the other half would chose. I was thinking of putting the 10 mm cable into a 60 amp junction box and then running 2 4mm cables from it to 2 20 amp isolators, is this the correct way of doing this? Can anyone tell me of another way that meets the regs too. I haven't put a breaker in the ccu yet. Thank you

 

[Marvo]

Are you an electrician or is this a DIY installation?

 

[Novice]

I replied to this in the. Ironing but strangely it didn't post?.. I am a property developer and I wanted to get electrics under my belt. I have done my part p which was fairly straight forward but I decided to wire my house up myself seeing as though it's the only chance I'll get on my property, I don't want to do it on other properties as I'm not qualified... But yes you could say a DIY job

 

[Marvo]

No problem, I've moved your thread to the DIY forum.

 

[markc123]

you have done your part p? what does that actually mean, part p is a regulation so the piece of paper you got that some may call a certficate you can either wipe your arse with it or burn it.

I feel sorry for the electrician that has to test your house, im presuming you've not complied with anything.

You want to get electrics under your belt? and how are you going to achieve that? a 4/5year night course? not as simple as your making out, mate.

 

[Marvo]

Now I installed a 10 mm cable because I didn't know what the other half would chose. I was thinking of putting the 10 mm cable into a 60 amp junction box and then running 2 4mm cables from it to 2 20 amp isolators,

Okay if you have a 10mm circuit and split it into 2 x 4mm circuits then regardless of the appliances you're supplying you must size your fuse or MCB supplying the 10mm cable to the smallest cable which is 4mm.

 

[Octopus]

Well, you have your "Part P" and you don't know this??

Just goes to show how meaningless the "part P is doesn't it"

Sorry mate buy you are well on your own on this one.

And yes this all falls under Part P and LABC so how are you planning on the necessary notification?

 

[Marvo]

This is a DIY question so please either point him in the right direction, highlight where there's a hazard or just walk away.

Thanks.

 

[Octopus]

This is a DIY question so please either point him in the right direction, highlight where there's a hazard or just walk away.

Thanks.

Employ a qualified, registered, competent spark.

 

[Deleted member 9648]

I replied to this in the. Ironing but strangely it didn't post?.. I am a property developer and I wanted to get electrics under my belt. I have done my part p which was fairly straight forward but I decided to wire my house up myself seeing as though it's the only chance I'll get on my property, I don't want to do it on other properties as I'm not qualified... But yes you could say a DIY job

I'm afraid doing 'your part P' was a waste of time and money. Part P is a building regulations document which stipulates work in domestic situations which have to be notified to building control.It is NOT a qualification.Despite this it seems the proliferation of 'training courses' on part P continues to con people like you into parting with cash in the mistaken belief that they will be qualified.The work you have undertaken has to be notified to building control by law.You have the choice of either notifying BC and paying their rip off fees for your work to be 'signed off',or contacting BC and finding out if they will accept your work being signed off by an electrician who is a member of a scheme,if you can find one who will do it.Few are prepared to put their name to work they have not carried out. Failure to notify BC is a criminal offence.
That aside what you are proposing may be acceptable...but as already stated,the MCB must be rated to protect the cable of the lowest current rating on the circuit,likely 32a. This may give you a problem with mcb rating for your appliances,depending on manufacturers instructions,they may require 16a or 20a protection. Ideally you want two 20a radials back to the CU.

 

[Novice]

Lol thanks for the attack people. Just a quick one I have complied with all regs but anyway I'm not here to prove points to anyone especially electricians who know there trade. But thank you for your kind comments.... As for rating the the mcb I can use a cable size (6mm or even 10mm) I just need to know if this is the best way of doing it. The total load on the 10 mm cable would be 35 amps and the maximum on the split side would be 17 amps per cable. I hope I am explaining this ok.

 

[Octopus]

Time to get my coat.

 

[Novice]

2 20 amp radials sounds good, but as I didn't even think she would chose to have 2 ovens I didn't put 2 cables in. Can I run the 10 mm into a small consumer unit and have 2 20 amp breakers?

 

[Octopus]

2 20 amp radials sounds good, but as I didn't even think she would chose to have 2 ovens I didn't put 2 cables in. Can I run the 10 mm into a small consumer unit and have 2 20 amp breakers?

Not getting the message then

 

[Deleted member 9648]

Lol thanks for the attack people. Just a quick one I have complied with all regs but anyway I'm not here to prove points to anyone especially electricians who know there trade. But thank you for your kind comments.... As for rating the the mcb I can use a cable size (6mm or even 10mm) I just need to know if this is the best way of doing it. The total load on the 10 mm cable would be 35 amps and the maximum on the split side would be 17 amps per cable. I hope I am explaining this ok.

As you only have a 10mm radial in place you dont have much choice but no,it's not the best way of doing it......should be two 20a radials.