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Discuss 18th edition and the requirement to upgrade consumer units when electric hobs are replaced in the Electrical Forum area at ElectriciansForums.net

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Good morning

does anyone know about anything in the 18th edition and the requirement to upgrade consumer units when electric hobs are replaced?

i had a customer ask me about it this morning.

Many thanks
Simon
 
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Wilko

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Esteemed
Hi Simon and Welcome to the Forum :) .
No changes to fixed wiring are required by BS7671 when appliances are replaced. However, the detail here is the new cooker’s manufacturer may state something in their installation instructions that needs to be considered.
 
Considered maybe, but manufacturers instructions are guidance only and do not have to be followed, especially when they are wrong, which quite surprisingly is quite often.
 

Fitzy

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They might be confused regards the fitting of RCD’s when adding to circuits.
 

Pete999

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Good morning

does anyone know about anything in the 18th edition and the requirement to upgrade consumer units when electric hobs are replaced?

i had a customer ask me about it this morning.

Many thanks
Simon
No Mate
 

Charlie_

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Arms
I am going to replace a consumer unit this afternoon thanks to an induction hob being installed..
The extra earth leakage on the installation from the hob causing the RCD incomer to trip..
So they may be recommending a cu change based on this kind of scenario
 

littlespark

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Advent Win
I am going to replace a consumer unit this afternoon thanks to an induction hob being installed..
The extra earth leakage on the installation from the hob causing the RCD incomer to trip..
So they may be recommending a cu change based on this kind of scenario
So what’s going to stop the hob tripping it’s circuit Rcbo after the CU change?
 
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