Despite the success with the use of computers in the power industry, there remains a large class of problems that eludes solution using conventional software. These problems are usually solved by experts, require judgement, based on experience gained over a period of time and involve imprecise knowledge that cannot be formulated into an algorithm or a mathematical mode. The authors describe how the interpretation and application of the IEE wiring regulations is just such a problem concerning the application of a complex set of rules, procedures and standards, which, by reason of their format, are not easy to apply to specific problems. As such they provide an ideal example of an area of work where expert systems can assist in the engineering design of electrical installations.
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