Electrical Contracting News (ECN) September 2017 | Page 31

PROJECT FOCUS

PROJECT FOCUS

Open protocol technologies will provide ease of access to future engineers and contractors .
‘ Open protocol technologies allow us to deliver briefs that would defeat oldfashioned approaches to lighting control .’
In meeting rooms and reception areas , PC634 DALI scene set switches were installed to provide scene setting and local dimming control . This allows occupants to optimise lighting for their activities . With the sensors and scene set switches connected directly to the same DALI bus as the light fittings , the quantity of ceiling furniture was reduced and installation was simplified , with no requirements for additional mains power .
Intelligent interface
Complementing the system hardware was Prolojik ’ s graphic user interface , Perspective , which serves both landlord and tenant spaces . While commissioning was underway , unanticipated alterations to system set-up and operation in base build areas prompted the provision of a temporary head end for the fit-out areas . Once the installation and wiring changes were complete , however , all areas were unified within the Perspective system .
Perspective also supported the integration of emergency lighting monitoring and testing within the lighting control system . Designed to make use of the intelligence already available within the specified luminaires , Prolojik ’ s system allows the client to initiate the statutory emergency test at a time that suits the occupiers . They can then identify any issues and initiate the works required .
Rather than specifying a secondary system , Prolojik set out to supply a cost-effective solution , which was simpler for the client to manage , without compromising on functionality .
the restricted ceiling access within the development for equipment and wiring , Prolojik specified an open protocol networked DALI system . This helped ensure that all maintainable equipment could be mounted in the riser cupboards . Adjacent to the lighting distribution boards , Prolojik specified PL300 LON / DALI controllers connected to the building-wide LON network and PL434 LON / DALI switched controllers to feed both DALI and non-DALI fittings . Several fittings already specified by the tenant also required the flexibility to integrate non-DALI fittings into the control system and in this instance , the solution was facilitated using Prolojik ’ s PL434 .
Future maintenance
Having established a streamlined lighting control system , Prolojik ’ s use of open protocol technologies will provide ease of access to future engineers and contractors needing to maintain or adapt the system . The nature of the Power over Ethernet technology will also minimise the need for electrician involvement . These future-proofing steps have been included to provide total flexibility and maximum longevity of the system for both the building manager and occupants .
‘ At Prolojik we approach every project by considering the needs of the end user ,’ explained Mark Vincent , commercial director of Prolojik . ‘ This ensures that we ’ re able to provide future-proof and scalable control systems for our clients . Our belief in the use of open protocol technologies allows us to deliver briefs that would defeat oldfashioned approaches to lighting controls and gives us the flexibility and creativity to meet the demands of developments such as 40 Chancery Lane .’
Prolojik created a solution to encompass the specific lighting fixtures selected by the tenant .
Simple installation
Throughout the base build and tenant spaces , including the open plan offices , Prolojik ’ s PS432 DALI multi-sensors were fitted into both suspended light fittings and ceilings , where space was available . The combined unit provides presence and absence detection and light regulation in a single sensor to simplify installation and ongoing management and maintenance . The PS432 also boasts a diameter of 44mm and a depth of only 21mm , which further reduced the void needed .
PS432 DALI multisensors were fitted into both suspended light fittings and ceilings .
September 2017 | 31