BS5486 Part 1 1986 'Low Voltage Switchgear and Controlgear Assemblies' is identical to IEC 439-1 1985 which will shortly be accepted as a Euro-Norm (EN). This means that the constructional rules contained therein are acceptable in the single European Market. IEC439-1 is also acceptable in many overseas countries, for example, Australia and the Far East. Based upon these standards the author compares UK and European practice concerning short circuit protection requirements, discrimination and co-ordination, electric shock protection and insulated assemblies.
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