AN UPGRADE of the lighting at the BBC’s buildings across the UK involved the installation of more than 14,000 Casambi nodes across seven offices.
At the flagship building, New Broadcasting House, in London, several thousand Casambi wireless nodes – including luminaires, sensors and switches – were installed.
The building’s old T5 fittings, which were controlled using a 1-10v system, were replaced one-for-one with recessed linear LED luminaires from Wila Lighting.
Over 2,000 luminaires were installed throughout with integrated Bluetooth Casambi controls.
On the fifth floor tuneable wWhite versions were installed to provide colour temperature flexibility ranging from 2700K to 6500K.
All of the new lighting had to comply with all relevant standards including the BS EN 12464: Light and Lighting, Lighting of Work Places and BS 5266: Emergency Lighting, along with other relevant standards.
Delivering 115+ luminaire lumens per circuit watt (3000 Llm), the Wila Cluster luminaires are a more efficient solution than the previous T5 luminaires allowing a payback of under two years.
Casambi is based on Bluetooth and allows lighting to be controlled from any mobile device. Casambi Ready luminaires, sensors and switches incorporate a proprietary Bluetooth communication module that enables them to form a wireless mesh network with each other.
Using the Casambi app, users can switch and dim lights, configure sensors and switches, and create pre-set scenes.
Sensors from Tridonic and Danlers have been installed to enable presence and absence detection and daylight dimming, ensuring lights are only on when they’re needed.
Energy-harvesting wireless switches from EnOcean are also being used, which provide another easy way for staff to control the lights.
EnOcean’s wireless switches are particularly well suited to Casambi, because it is the only lighting control system in which they can be paired with the whole network, rather than just the nearest individual node, ensuring reliable commissioning and operation.
The installation at Broadcasting House was carried out during late evenings, and each area being upgraded had to be ready the following morning when staff returned to their desks, so there would be no disruption.
Casambi worked with commissioning partners Holders Technology to ensure the out-of-hours commissioning was completed.
The new luminaires and sensors were simply installed in the spaces left by the old equipment, using existing power lines, but with the old wired control function no longer in use.
Apart from Casambi Ready luminaires, sensors and switches, no other hardware is required to operate and control the new lighting.
The system was commissioned wirelessly from a remote location, meaning there was no need for anyone to be on site, minimising disruption to work.
The flexibility to adjust light levels at any time means the BBC has been able to accommodate staff preferences and requests.
Kari Mettälä, CEO of Casambi, said: ‘We’re really proud that a globally renowned organisation like the BBC has put its trust in us to provide controls for all seven of these sites, including the iconic Broadcasting House.
‘It’s testament to the power of Casambi, and a great demonstration of how buildings can benefit from the best in modern lighting control to make the working environment more flexible, more pleasant and more energy efficient.’
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