Energy efficiency and overall cost of ownership were key considerations in the design of a new £68m production site in Bridgewater for Robert Wiseman Dairies. Consequently, consulting engineers AE Robb & Associate specified Chalmor’s long life, energy efficient Endurance fittings for lighting in the CIP (Cleaning In Production) room. The fittings were installed by electrical contractor Norstead.
Robert Wiseman Dairies processes and delivers milk to customers throughout Great Britain, operating from a nationwide network of major processing centres. The new site in Taunton is the company’s sixth such centre.
As a result of using Endurance fittings, Wiseman is achieving around 50% energy savings in the CIP, compared to the high pressure sodium fittings that were considered as an alternative, while also halving the installed lighting electrical load. The company is also able to greatly extend its re-lamping schedules to reduce disruption and maintenance costs.
Endurance fittings last 60,000 hours before the light sources need to be replaced – around five times as long as sodium lamps. This will equate to approximately seven years, based on anticipated running hours, before re-lamping is required. This factor was particularly important as the machinery in the room makes access to light fittings difficult and disruptive – so the company will benefit from considerable savings in ongoing maintenance.
Fifteen flush-mounted, 150W, IP65-rated Endurance fittings have been fitted in the eight metre high space, providing a white light that displays colours accurately and creates a bright and cheerful working environment. This light output will remain consistent from the initial installation, whereas sodium lamps degrade by as much as 30% in the first year and continue to deteriorate through the rest of their life.
Use of IP65-rated fittings eliminates the risk of contamination of food preparation areas, while the flush-mounting of the fittings prevents any build up of dust.
