Djanogly City Academy in Nottingham is one of 200 independently-run academies which the Government hopes to see established by 2010. The new site in Gregory Boulevard, Nottingham will provide education for 810 year 7-9 (11-14 year-old) pupils, with an emphasis on information and communications technology. The Academy leads the way in laptop and wireless technology with extensive use of laptops and tabletcomputers for 50% of curriculum time. Every pupil will have his/her own laptop computer, so safe andreliable electrical installations are crucial.The main switchboard is a four-section Memform Form 4 cubicle switchboard with Type 6 segregation. It was supplied as a type-tested factory built assembly from Eaton’s Reddings Lane factory in Birmingham. It has a 1600A air circuit-breaker incomer and 32 MCCB outgoing ways ranging from 32A SPN feeding fire alarm equipment to 250A TPN units feeding seven panelboards. Other major loads include ventilation and chiller plant. The switchboard includes 250kVAR de-tuned power factor correction and 80kA transient voltage surge suppression, all supplied from the Eaton range. There is also provision for active harmonic power conditioning to be added, if necessary.Four MCCB panelboards are located at load centres and supply 32 distribution boards providing power and lighting in classrooms, laboratories, workshops, a sports hall, offices and the kitchens. Three more panelboards feed mechanical plant.The final distribution boards incorporate RCBO protection on selected circuits. They also provide contactor switching for corridor lighting and other key loads. In all, there are 44 Memshield 2 distribution boards throughout the building.Features of the NG Bailey contract include the use of chilled beams to supply light and air circulation in the teaching areas. Wherever possible mechanical ventilation is used to conserve energy. High frequency fluorescent lighting is used in classrooms. Some 20% of the mechanical plant systems were pre-fabricated off-site by Bailey Prefabrication. This and Eaton’s supply of factorybuilt switchboards and panelboards helped reduce installation time and increase site productivity on a seven-month M&E services contract.
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