Hi, I am a newly qualified spark and I just want to confirm I am doing this small job correctly.
The job is to swap my grandmas cooker and hob. At the minute she has a gas hob and electric cooker. There is a 10mm cable supplying a 45A switch with socket outlet backed by a 40A breaker. At the moment the cooker is wired in 2.5mm flex from the 45A switch direct to the cooker with the hob being plugged in on a 13A plug. I believe this is wrong as the 2.5mm cable from the 45A switch to the cooker is fused at 40A with the maximum load of the cable 20A?
The new cooker I am installing is 2.9kw and the hob is 6.5kw with the cable run being a maximum of 10m. That gives me a total load of 40.87A so the 40A breaker and 10mm is ok.
What I have in my head is to hard wire the hob into the 45A switch with 10mm and wire the cooker in 1.5 flex on a 13A plug top. The load for the cooker is 12.6A, is this to close to 13A?
Ideally I would run a seperate 20A supply for the cooker but want to avoid chasing down the wall if possible.
Also, would it be possible to wire from 45A to cooker in 6.0mm. I dont think it will because its fused at 40A and 6.0mm wont be big enough. Please correct me if I'm wrong.
Thanks in advance for any help.
The job is to swap my grandmas cooker and hob. At the minute she has a gas hob and electric cooker. There is a 10mm cable supplying a 45A switch with socket outlet backed by a 40A breaker. At the moment the cooker is wired in 2.5mm flex from the 45A switch direct to the cooker with the hob being plugged in on a 13A plug. I believe this is wrong as the 2.5mm cable from the 45A switch to the cooker is fused at 40A with the maximum load of the cable 20A?
The new cooker I am installing is 2.9kw and the hob is 6.5kw with the cable run being a maximum of 10m. That gives me a total load of 40.87A so the 40A breaker and 10mm is ok.
What I have in my head is to hard wire the hob into the 45A switch with 10mm and wire the cooker in 1.5 flex on a 13A plug top. The load for the cooker is 12.6A, is this to close to 13A?
Ideally I would run a seperate 20A supply for the cooker but want to avoid chasing down the wall if possible.
Also, would it be possible to wire from 45A to cooker in 6.0mm. I dont think it will because its fused at 40A and 6.0mm wont be big enough. Please correct me if I'm wrong.
Thanks in advance for any help.