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Most has already been answered.
The main thing to consider many things are dangerous if installed or used in a way not intended by the manufacturer, be it a car, or even screwdriver they can be lethal weapons but that is incorrect use of the item.
So if when hot there is a short to earth then this will not injure anyone as long as installed following the IET/BSi regulations, it may be a pain where it causes the power to trip, but only a danger if incorrectly installed.
As to 32 or 45 amp feeds to an oven that has been up for debate many times, on a fixed appliance the manufacturer can stipulate the protective device, although not with a portable appliance. So the manufacturer can say this device should be protected to 16A. Where the manufacturer has not stated it should be protected with a 16A device we have to look as what is reasonable. The first point has to be supply cable, for 32A would need to be 6mm² and for 45A would need to be 10mm² in the main you would struggle to use cable that thick in the main ovens are wired with 2.5mm² cable so the overload would be no more than 20A.
If anyone was to wire a oven with 10mm² and something in the oven melted or failed including the earth cable, I could not see a court blaming the manufacturer they would likely blame the installer for using over sized cable and overload. But it would be for the courts to decide. 20A feed to an oven OK, but even 32A is double the size required, so although people may do it, they shouldn't.
It is like saying you need to lower the speed limit from 40 to 30 because there have been so many accidents due to people driving at 60. The fault is people driving over the speed limit, not the speed limit set to wrong level.
From what you say there is a fault which needs correcting, which may warrant a recall, and trading standards may be interested and also the manufacturer may do a recall anyway. But if you tell people it is dangerous when it's not, then they will likely ignore what you say, one has to be careful not to over state what the faults are.
What make of Oven is it? And pictures would be good. Then even if the manufacturer does not correct it will alert people. We all see the reports on Hotpoint tumble driers and we avoid that make.
The main thing to consider many things are dangerous if installed or used in a way not intended by the manufacturer, be it a car, or even screwdriver they can be lethal weapons but that is incorrect use of the item.
So if when hot there is a short to earth then this will not injure anyone as long as installed following the IET/BSi regulations, it may be a pain where it causes the power to trip, but only a danger if incorrectly installed.
As to 32 or 45 amp feeds to an oven that has been up for debate many times, on a fixed appliance the manufacturer can stipulate the protective device, although not with a portable appliance. So the manufacturer can say this device should be protected to 16A. Where the manufacturer has not stated it should be protected with a 16A device we have to look as what is reasonable. The first point has to be supply cable, for 32A would need to be 6mm² and for 45A would need to be 10mm² in the main you would struggle to use cable that thick in the main ovens are wired with 2.5mm² cable so the overload would be no more than 20A.
If anyone was to wire a oven with 10mm² and something in the oven melted or failed including the earth cable, I could not see a court blaming the manufacturer they would likely blame the installer for using over sized cable and overload. But it would be for the courts to decide. 20A feed to an oven OK, but even 32A is double the size required, so although people may do it, they shouldn't.
It is like saying you need to lower the speed limit from 40 to 30 because there have been so many accidents due to people driving at 60. The fault is people driving over the speed limit, not the speed limit set to wrong level.
From what you say there is a fault which needs correcting, which may warrant a recall, and trading standards may be interested and also the manufacturer may do a recall anyway. But if you tell people it is dangerous when it's not, then they will likely ignore what you say, one has to be careful not to over state what the faults are.
What make of Oven is it? And pictures would be good. Then even if the manufacturer does not correct it will alert people. We all see the reports on Hotpoint tumble driers and we avoid that make.