Electrical Contracting News (ECN) October 2016 - Page 35

DISTRIBUTION BOARDS BOARD MEETING The market demand to help satisfy the requirements of Part L2 has driven development in this area. Ian Smith, marketing manager at Hager, highlights why electrical contractors and engineers should take advantage of new and innovative integrated power and lighting distribution boards which now also offer plug-in metering capability. The benefits include increased ease and reduced cost of on site installation, as well as helping end users satisfy regulatory responsibilities when it comes to monitoring and measuring energy consumption in commercial buildings. F or the past 10 years the legislative requirements set out in Part L2 of the Building Regulations for England and Wales (2006) have driven the need to measure and manage energy consumption in non-domestic buildings. Part L2 On the back of global moves to address the impact of climate change, the UK government developed a wide ranging Climate Change programme designed to increase energy efficiency and reduce carbon emissions. One of the central initiatives of the programme was the adoption of the EU’s Energy Performance of Buildings Directive, which in turn led to the creation of Part L2. A key factor behind Part L2 was to create a scenario where building managers, landlords and tenants could clearly identify where energy is used, where it is being wasted and where energy efficiencies could be implemented across a building. It put the onus firmly on building operators to proactively and accurately measure energy use for building electrical installations. An added responsibility also came in the form of the EU’s Measuring Instruments Directive (MID), designed to ensure a high level of safety and reliability in measuring instruments. For the commercial marketplace, the presence of Part L2A (which covers new buildings and applies to all new non-domestic premises) and Part L2B, which covers existing non-domestic buildings, requires that organisations using submetering should be able to provide detailed information about where they are consuming energy, with the proviso that at least 90 per cent of estimated annual consumption of fuel sources can be accounted for. In practical terms, this means, for instance, separate metering for motor control centres for fans and pumps, boiler installations, chiller facilities, electric humidifiers and electrical distribution boards. 35 35-36 Distribution Boards – Hager.indd 35 12/09/2016 12:36