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Is 4mm heat resistant cable okay for 7.5kw range cooker?

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chris140

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The electrician that installed my cooker circuit put in 10mm cable with a 32a fuse, a 45a cooker switch and 10mm cable to the backplate for behind the cooker. He put this size in as I didn't know what size cooker I was going to be getting.

I ended up getting a 7.4kw range cooker and the electrician has connected it with 4mm heat resistant cable instead from the cooker to the back plate, instead of 6mm. Is this okay, and is it okay with the 10mm cable and 32a fuse?

Thanks
 
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7029 dave said:
4mm is absolutely fine, some like to use H07 some t&e. MF instructions have the last word.
Click to expand...
Thanks very much for replying, been really worried about using cooker as I will be doing baking using both ovens and then may have to put something under the grill for my sons dinner at the same time, so cooker could often be running at full power, that's what I bought that model for.
 
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cooker should not pull more than 32A
cable if it is H07RN-F as below is good for 35A
however as said before, it will not draw 32A in use for long, even if you have everything turned on.
Nothing to worry about.
[ElectriciansForums.net] Is 4mm heat resistant cable okay for 7.5kw range cooker?
 
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as mentioned previously, you need to allow for diversity, you will not pull enough load to worry the 4mm2 cable you have
 
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