cooker 6mm

[mrtell]

9.0 KW cooker
20 meter run
10 mm cable
40 Amp breaker

Is it possible to attach 6mm cable from the cooker outlet point to the cooker even though the rest of the run is 10mm ?
the reason I want to run 6mm is because there is not much room at the back of the cooker and was thinking pulling and shoving the cooker in and out may stress the cable but with 6mm being more flexible that would be better.

It was also suggested that I could use 4mm butyl ???.
thanks

 

[mrtell]

anybody

 

[ricicle]

Although 6mm² is ok protected by a 40A mcb it is not a good idea, in my opinion, to have a smaller cable elsewhere on the circuit when the cable leaving the CU is larger and may have a bigger protective device fitted at some stage (even though it would be noted that the 6mm² was connected if the cooker was changed)
Don't know what anyone elses opinion is?

 

[securespark]

You must use a cable size that exceeds the rating of the CPD. It make sense to use the same size cable throughout the circuit.

 

[mrtell]

thank you,
anyone else

 

[davy_owen_88]

I'm of the opinion that the cable run should be verified at both ends before any CPD is upgraded so using 6mm² on a 40A MCB is fine.

Possibly put a note by the CU stating a short length of 6mm² cable was used on circuit number xx?

 

[mrtell]

thank you all