Disagreement between two electricians in new kitchen installation. Who's right?

[woz]

I'm having a new kitchen fitted with a bosch 7.2KW induction hob and bosch 3.45KW oven. Electrician 1 has decommissioned the old 6mm cable from the consumer unit and replaced it with a 10mm cable connected to the old 32a fuse on the RCD side of the consumer unit. From the 10mm cable he's put a 45a switch for the hob and proposed looping through another 45a switch for the oven. He says if the 32a fuse is found to be too low he'll replace it with a 45a one.

Electrician 2 says this is not safe. He says the 3.45KW oven is a 16a appliance an should be protected by a 16 or 20a fuse not 32a. He proposes putting a second small consumer unit on the end of the 10mm cable in a cupboard feeding just the oven with a 16 or 20a fuse inside. I don't want this, taking up valuable cupboard space. Another option would be to recommission the 6mm cable and connect it to a 16/20a fuse in the main consumer unit with RCD protection.

Who's right?? The kitchen fitter is returning tomorrow to remove the cupboard units to get to the plastered in 6mm cable and chase the walls for electrician 2 to fit a switch above the cupboard unless someone tells me the work done by electrician 1 is fine!

Thanks in advance.

 

[Risteard]

And as he works for the kitchen company there's probably sour grapes as they didn't get the [usually ridiculously priced] electrical work.

LOL. I was recently undercut by a kitchen company after I pointed out that main protective bonding would need to be installed, along with new circuits (someone had come off one leg of a ring somewhere and fed the kitchen, and then taken lights and everything off it too!) and RCD protection given that there was only a wooden open-backed Wylex 3036 board screwed to wood and with a missing cover for one of the fuses with a serious amount of exposed live copper to touch with the fuse withdrawn.

I presume no EIC will be offered for their work! Apparantly they were "much cheaper" than my quote.

 

[ipf]

True, I changed the RCD a few years ago in the CU. However I recognise my limits. When I needed a new circuit putting into the kitchen for a switch from a gas to electric hob, new appliance spur sockets for dishwasher, washing machine and fridge and some additional new sockets adding I called in a professional who could give me a part P certificate after the job was complete for when I come to sell the house and for piece of mind. Hence getting in electrician 1.

Do all new members or first time posters have their integrity questioned on here? The internet is a strange place where things that people wouldn't say to people's faces are freely typed.

By all means, if competent, do a little DIY, changing a piece of equipment after isolating at the CU, but when it comes to working on a CU, I hope you were aware of the relevant regulations, as well as being able to take the relevant precautions before carrying out the procedure.
Regarding your kitchen, I wish you well in your decision to choose correctly and hope that the face to face discussion with the various trades persons leads to no bad blood.

 

[NDG Elecs]

Don't take it t to heart Woz. There are a lot of posters on here that come out with "my electricians on holiday and I need to know what parts to get for him", and then they generally are fishing for answers on how to do it themselves, whilst using a pretense of an electrician being actually involved. For what it's worth your story sounds definitely feasible! But I can understand Mids take on it too!

 

[ipf]

LOL. I was recently undercut by a kitchen company after I pointed out that main protective bonding would need to be installed, along with new circuits (someone had come off one leg of a ring somewhere and fed the kitchen, and then taken lights and everything off it too!) and RCD protection given that there was only a wooden open-backed Wylex 3036 board screwed to wood and with a missing cover for one of the fuses with a serious amount of exposed live copper to touch with the fuse withdrawn.

I presume no EIC will be offered for their work! Apparantly they were "much cheaper" than my quote.

It really is amazing how much dosh these intelligent dipsticks will lump out for their fitted kitchens and equipment, though.

 

[Skelly]

If it was me i would have kept the 6mm for the oven @ 3.45 kw and used the 10mm @ 7.20kw for the hob, Both dependability fused respectively via the RCD side of the CU.

 

[Risteard]

It really is amazing how much dosh these intelligent dipsticks will lump out for their fitted kitchens and equipment, though.

Absolutely. And at first I had to quote for all screwless polished chrome with no plastic inserts. When he got that first quote back he went and bought LAP rubbish with white plastic inserts! (He didn't seem to realise that moving the goalposts like that made it impossible to price against.

 

[Leesparkykent]

If it was me i would have kept the 6mm for the oven @ 3.45 kw and used the 10mm @ 7.20kw for the hob, Both dependability fused respectively via the RCD side of the CU.

yeah that would of been a good shout but no need to start removing units, chasing walls, etc now.

 

[Skelly]

Originally Posted by Skelly If it was me i would have kept the 6mm for the oven @ 3.45 kw and used the 10mm @ 7.20kw for the hob, Both dependability fused respectively via the RCD side of the CU.



yeah that would of been a good shout but no need to start removing units, chasing walls, etc now.

Unfortunately that's what happen's when you don't think about things beforehand, Sounds like a right ball's up to me, Bet the customer isn't happy, Not good practice :boxing_smiley:

 

[hightower]

LOL. I was recently undercut by a kitchen company after I pointed out that main protective bonding would need to be installed, along with new circuits (someone had come off one leg of a ring somewhere and fed the kitchen, and then taken lights and everything off it too!) and RCD protection given that there was only a wooden open-backed Wylex 3036 board screwed to wood and with a missing cover for one of the fuses with a serious amount of exposed live copper to touch with the fuse withdrawn.

I presume no EIC will be offered for their work! Apparantly they were "much cheaper" than my quote.

Do let us know if you get a call in a few months shouting for help......

 

[Risteard]

Do let us know if you get a call in a few months shouting for help......

They'll probably want cheaper help!