Jan 10, 2016 BS7671 Part 3 Chapter 31 Purpose, Supplies and Structure. 311 Maximum Demand and Diversity. Regulation 311.1 .. In determining the.... Jun 19, 2018 The 75% compressor diversity factor in above formula has been ... BS 7671. British Standard Requirements for Electrical Installations.. allows compliance with BS 7671:2008 regulations; 411.3.3 additional protection by means ... A split load board allows circuits to be arranged in a configuration to minimise ... BS 7671. Rated Diversi