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Electricity sub-metering to Building-Regulation requirements
Published: July 2006
Energy metering in line with the latest Part L2 requirements of the Building Regulations is provided by a new family of meter packs from Eaton Electric. They are part of the Memshield 2 low-voltage distribution range. Two types are available. Both provide a pulsed output for remote energy monitoring. One is a multi-function meter with visual read-out of parameters such as energy consumed (KWh), reactive power, voltage, current and power factor. The other is approved and certified by Ofgem providing a visual read-out of energy only. These meter packs are housed in enclosures that can be mounted below Memshield 2 3-phase MCB distribution boards to provide energy metering of the loads supplied through the boards. The latest Building Regulations require that at least 90% of the estimated annual energy consumption in a building should be accounted for, particularly in new buildings with a gross floor area greater than 500 m2. Loads greater than 50 kW (about 69 A) should have separate sub-metering. This requirement can be satisfied by providing sub-circuit metering, either at the main switchboard or at sub-distribution boards. For more information on this story, click here:July 06, 174 Related articles: 
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