by ericmark »
Tue Dec 14, 2010 2:51 pm
There are so many building regulations to say you must or must not is hard. However if you look at it with common sense one would hope the regulations will allow it. Most of the documents are found if you Google "planningportal.gov.uk/buildingregulations/approveddocuments/" from what I remember it refers to BS7671:2008 which only says the installation needs to be split into circuits and does not say exactly what needs to be on each circuit.
I know that we as electricians are not allowed to turn off the power to a house the same applies to gas fitters without making arrangements for alternative accommodation. It comes down to making the house uninhabitable and we are not permitted to do that without ensuring people have some where to live.
Really the rules are to stop gas, water, electric supply companies from switching of supply because of non payment of bill. With comestible premises the rules are reversed and as an electrician if I feel something is dangerous I can turn off the supply even if the managing director says I should not. However in real terms unlikely to keep ones job.
As far as I know there is nothing to say you must have a cooker supply. And with microwave, kettle, deep fat frier's etc it is not really required to have a cooker supply. Also even where a cooker is required most 2 ring hobs and single ovens are under the magic 13A supplied from a socket or fused connection unit. So you don't need a special cooker supply other than the requirement for fixed appliances over 2Kw to have dedicated supply if one does not want to calculate power usage.
However I would be wary on reducing the MCB size as in the future you may want to return to electric. If I am asked to reduce size that is easy but to increase one has to be sure the circuit can take the increased power. With cables in a house buried in the wall working out why a circuit is protected to 20A instead of 32A is not easy. I have reduced the MCB on radial circuit to 20A when I found half way around some one thinking it was a ring main had extended it using 2.5mm cable instead of 4mm cable. If you ever want the circuit up-rated again it may be hard to persuade the electrician it is safe to do so.
With the way electric cookers have improved so much with the introduction of induction cookers many people are moving to the faster and safer electric cooker. With the exception of using a wok or for pacemaker users electric is now better than gas. Plus you can't burn hydrogen which at moment is only renewable gas we can use. So we may find gas is a fuel of the past in a few years time.