Increase mcb capacity. Notifiable?

[dan86]

deleted

 

[spynage]

now, forgive me if I am reading this wrong, but I am still on holiday, it's warm, and I've had a few.
but from what I've read it seems the customer has a 20a mcb in their kitchen which is tripping.
in order to rectify this, you want to swap for a 32a?

Correct!

Just want to know if that's notifiable? If it is then notifiable work in a kitchen would mean installing RCD protection would it not?

 

[Plonker 3]

No, electric work in a kitchen doesn't always need RCD protecting.

Are you a electrician?

 

[telectrix]

1. it's not notifiable as it's not a new circuit. 2. it's optional whether or not you fit RCD> personally i would prefer to fit one if the customer was happy to pay.

 

[Andy78]

Correct!

Just want to know if that's notifiable? If it is then notifiable work in a kitchen would mean installing RCD protection would it not?

You seem confused about a great many things. What does it being notifiable or not have to do with the requirements for RCD protection ?

 

[spynage]

1. it's not notifiable as it's not a new circuit. 2. it's optional whether or not you fit RCD> personally i would prefer to fit one if the customer was happy to pay.

Ok. So upgrading the current carrying capacity of a circuit is not notifiable? Really?? Just a MWS then?

 

[dan86]

I'm confused.
kitchen circuit is tripping the 20a mcb, so your solution is to bang in a 32a instead?
have you done any testing at all. if so, what?
as for notifiable- no. as for rcd- your responsibility is to explain to the customer what protection that will offer and let them decide.

 

[dan86]

Ok. So upgrading the current carrying capacity of a circuit is not notifiable? Really?? Just a MWS then?

what?
now I definitely know you are confused!

 

[spynage]

No, electric work in a kitchen doesn't always need RCD protecting.

Are you a electrician?

I want know if increasing the capacity of a circuit from 20 amp to 32 amp is notifiable. As far as RCD protection goes then if I'm putting new wiring in a special location with no additional protection then I would expect to put in place An RCD.

 

[Andy78]

Ok. So upgrading the current carrying capacity of a circuit is not notifiable? Really?? Just a MWS then?

But by replacing a 20A for a 32A you wouldn't be "upgrading the current carrying capacity of a circuit" would you ? As said a few times already..... is the cable suitable for the new size MCB you plan to fit ?

 

[telectrix]

since when is a kitchen a special location? if you can reinstate the RFC then do so, then uprate to 32A. if not, leave well alone.

 

[dan86]

I want know if increasing the capacity of a circuit from 20 amp to 32 amp is notifiable. As far as RCD protection goes then if I'm putting new wiring in a special location with no additional protection then I would expect to put in place An RCD.

you would not be increasing the current capacity of a circuit by swapping the 20a with a 32a. you would merely be changing the OCPD.
the only way to alter the CCC of a circuit is to install a new circuit with the relevant size cable and OCPD.

 

[tony mc]

Have you found the fault ? If there is one ?

Maybe this will help as you should have a copy or a good working knowledge of it if you are working in peoples homes!!

New Approved Document P: Electrical safety - Dwellings

 

[spynage]

you would not be increasing the current capacity of a circuit by swapping the 20a with a 32a. you would merely be changing the OCPD.
the only way to alter the CCC of a circuit is to install a new circuit with the relevant size cable and OCPD.

Thanks.

So if I reinstate the ring then I can upgrade the MCB to 32amp and just issue a MWS. If the circuit requires new wiring which can't fulfil all the conditions of 522.6.101 then Ill insist it requires some form of RCD protection.

 

[tony mc]

What do you mean new wiring ?