Orsett Hall Hotel Pavilion has a gross floor area of just over 500 m2, so principal loads have to be metered to account for energy use — the cost of which was considerably reduced using boards specially built to incorporate separate metering of lighting and small-power loads.
Eaton offered the contractor, Essex Electrical Services, a split-load meter pack which sits below two Memshield 2 distribution boards to provide metering of supplies to each board. At Orsett Hall, there are two 200 A 24-way TPN boards, one serving lighting loads and the other serving single-phase and 3-phase supplies — including ring circuits, air-handling plant, kitchen equipment etc.
In addition to the price advantage of used a ready-made meter pack, there was an installation advantage in that the two Memshield 2 boards are fed by a single incoming cable via a rotary disconnect switch.
Eaton also provided cost-effective lighting control using its Studio 2 and 3 dimming systems. The lighting installation includes a mixture of high-frequency compact fluorescent lighting and low-voltage tungsten-halogen downlighters.
The main function area, the 300-seat Grahame Thomas Pavilion is used for wedding receptions, christenings, dinner dances and school proms. It can be divided into two separate areas.
Eaton devised a scheme offering four pre-determined lighting scenes in each area. A key-operated switch enables them to be operated as a single integrated system or as two systems. Special care was taken to avoid problems with colour mismatch between the CFl and LV lighting when dimmed. A control linked to the fire-alarm system brings all lighting up to maximum power in the event of a fire alarm.
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Keywords: Lighting, Eaton, Electrical
