Installing an electric cooker can seem like a straightforward task however, in reality installing an electric cooker is a complex job that should only be carried by a experienced and fully qualified electrician.
Electric cookers draw large currents as they are required to generate a lot of heat, far more than any other appliance (apart from electric showers) in the normal home.
It is for this reason that an electric cooker must be installed by a qualified engineer to assess the current demand of the new appliance and to check that both the circuit and fuse/ MCB has the correct capacity and ratings. This will protect you and your home from any dangerous overload.
Many people replace an existing electric cooker with another electric cooker without any consideration of circuit and fuse safety. Installing a new cooker with a higher rating should only be undertaken by a qualified electrician who has experience in load diversity.