Three Bedroom House
At one time, domestic electrical installations were simple and only basic design planning was necessary. A good electrician could be sent on site with a van load of wiring materials, and with no written instructions or drawings. The installation arrangements were rule-of-thumb and the quality of the job depended on the craftsmanship of the operative.
Any special requirements or missing information could be negotiated on site. Costing was repetitive and easy. The contract price was a simple multiple of the number of lights and sockets. Times have changed. There is probably no such thing as an average householder. Most occupiers have specialist requirements based upon the choice of room utilisation, decor, hobbies and the activities of the various residents.
It is not easy for an architect to forecast the furniture layout in a room. A modern speculative electrical installation cannot make universal provision for every conceivable arrangement. Most publications offering guidance on the requirements of BS 7671 (the Wiring Regulations) will often recommend that a project should be discussed with the client. This is essential for a custom-built house. As an alternative, the installation could incorporate some design flexibility, so that the new family is not restricted to bed positions or where kitchen equipment may be plugged in.
Standards for the house industry are determined by the National House Building Council (NHBC). Most building societies and other mortgage lenders require compliance with NHBC requirements.
This blog starts by illustrating a basic, cost-conscious electrical installation. A scheme may be lifted straight from the pages for such a contract. For more advanced schemes, it is hoped that developers will be enticed into better electrical facilities with a ‘modern living’ theme. A good quotation will include optional extras for improved lighting and socket-outlet facilities. Not all house purchasers want the cheapest possible electrical installation.
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