Using pre installed cooker circuit for 13amp or 16amp oven.

[Mark armitage]

Hi again so oven came today it's has a flex cable on it. It's stamped H05VV-F 3G 1.5. so guessing it's a 1.5mm cable. will a 1.5mm cable be ok to be connected to connection plate that is in wall and just changed MCB to 16amp or would I need get electrician to change cable to 2.5mm as well. Cheers

 

[brianmoooore]

If the oven is supplied with 1.5mm2 cable, then that is fine. If it came without cable, and I was installing it, I'd fit 2.5mm2 by preference, if I thought the terminals would accept it.

 

[Mark armitage]

If the oven is supplied with 1.5mm2 cable, then that is fine. If it came without cable, and I was installing it, I'd fit 2.5mm2 by preference, if I thought the terminals would accept it.

Thanks I did look at 1.5mm amp ratings and some said has rating of 15amp is that true? Would it be better to fit 13amp fuse spur switch to protect cooker cable or not?

 

[brianmoooore]

1.5mm2 cable is within its rating at room temp., but it's likely to be a bit warmer than that behind an oven in an enclosure.
The cable does NOT need protecting against overload, only against short circuit, which the MCB in the CU will do.
Do not run this oven through a 13A fuse for the reasons mentioned earlier in the thread.

 

[Mark armitage]

Thanks for all your help just wanted double check the 1.5mm would still be in 16amp rating were it's warmer behind the oven in a enclosure then?as only installation instructions I could find were from Curry's and of hisense website and they both said hard wire to 13amp fuse spur. Which seems strange for reasons mentioned here. There were no installation instructions with oven only that it was 3.3kw.