Lighting
Automatedlighting and smart buildings
If there were ever a silver lining to the coronavirus crisis, it is the renewed drive from all areas of industry and the government to come back from the pandemic as a greener, more energy-efficient society. Add to that the recent advances in green technology and climate change legislation such as the Net Zero Carbon 2050 target, and energy efficiency becomes a no-brainer for clients looking to build greener, cleaner and smarter assets and facilities managers looking to upgrade their buildings. Shahid Khan, ECAtechnical manager, explains further.
operational energy consumption, not to mention the embodied carbon costs associated with the manufacturing of lighting products. Efficiency is a broad term on its own, but in the context for lighting, it boils down to keeping the energy expenditure of a building at the lowest possible level without sacrificing user comfort and operational requirements. There is an almost overwhelming number of possible approaches to smart lighting installations for both wired and wireless
L
ighting in buildings is a major source of global carbon emissions, estimated at 20 to 40 per cent of a building’s total
networks – DMX 512, KNX, Zigbee, Bluetooth, to name a few. But for simple yet functional automated lighting controls, DALI takes the prize.
DALI: a history DALI – Digital Addressable Lighting Interface – is an interface protocol for digital communication between electronic lighting equipment (electronic ballasts, etc.). It is not a product but an open-source protocol: a common set of rules and commands that each device in a network must follow. DALI is supported by most global lighting
control system and component manufacturers. Therefore a network can be installed using
simple 5-core LV cabling with no segregation required, and a relatively straightforward commissioning regime making it one of the most cost-effective solutions out there. Each component of an open source DALI
network is assigned an ‘address’ which a central computer uses to communicate its pre- programmed instructions. For example, a set of lights can be programmed to come on once the first person enters the office in the morning, switch off when no-one is present in a room or on a floor, brighten or dim throughout the day or cause the actuation of solar blinds in response to the amount of natural light coming from outside. The possibilities are (almost) limitless, so long
28 | electrical wholesalerSeptember 2020
ewnews.co.uk
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