Electrical Contracting News (ECN) November 2016 - Page 25

PROJECT FOCUS A collaborative approach Gordon Cullen, contracts manager at SES explains, ‘While we have extensive experience in major infrastructure developments, the Queensferry Crossing is a once-in-a-lifetime project that demands a highly collaborative approach to ensure we can meet and match the exact requirements to deliver all of the component parts of the bridge on time and on budget. ‘MEF are a part of the SES approved supply chain and they selected Metsec not only because they were the best from a commercial and quality point of view, but because they were able to supply the cable management systems we needed in bespoke sizes, vitally important in terms of minimising waste and ensuring ease of fit. Particularly important was their willingness to adapt the units to minimise the number of joints required. Everything was spot-on in terms of enabling the teams to fabricate and install each unit on schedule.’ voestalpine Metsec supplied hot-dip galvanised cable tray and cable ladders cut to special size lengths, the trays to 3.5m and the ladders to 6.9m. The finished modules assembled by SES will hold a complex array of water management and cabling needs, from lighting and power, traffic management systems, security, fire alarms, radio communications, structural health monitoring and building monitoring, all designed to give optimal control over the management and performance of the bridge. Gordon adds, ‘It’s a highly complex installation that effectively acts as the “brains” of the bridge, controlling everything from the timing of the lights to maintenance planning with a focus on optimising efficiency and communications not just on the bridge itself but on how it communicates with the traffic management systems that feed into it.’ Reliability and quality Alistair Fairweather at MEF adds, ‘This is a fantastic project to work on and much of our involvement has been down to the support we have had from Metsec. We have worked with them for six or seven years and we knew that their involvement would be vital to us winning this contract. The sizes needed were not standard, but their UK based manufacturing capabilities gave us the option to offer a flexible, high quality solution to SES that we knew Metsec could fulfil to deliver on time and on budget. In fact, flexibility was critical not just in securing the project but in meeting evolving requirements as the project has progressed over the past 12 to 18 months. ‘We have put a lot of faith in partnering with Metsec for what has been one of the biggest projects we have ever worked on and it has really paid off. The reliability and the quality of service from the Metsec team has been as important as the quality of the product. The 55 micron hot-dipped galvanised steel tray and ladder systems used will need to endure exposure to the elements for up to two years before being completely sealed in under the bridge The Queensferry Crossing will open next year. (Image courtesy of Transport Scotland) urmet-banner-ad-real-new-size-crops-final.pdf 1 15/03/2016 15:20 A major collaboration between voestalpine Metsec, MEF and contractor SES Engineering Services was needed to complete the project. and the high quality of the product will contribute to keeping the whole life costs of the project down.’ Jon Hillier, director at voestalpine Metsec cable management division, adds, ‘The Queensferry Crossing project was something we were keen to be involved in from the start. We knew we had the capability to reprogramme our mill to allow us to manufacture the specified lengths of ladder and tray in a way that would fit perfectly into the required modules. ‘Working with MEF meant that we were also able to offer the just-in-time capabilities needed to support the tight prefabrication scheduling for each deck for the bridge. We are really excited about seeing the bridge completed and operational next year, knowing that our products are effectively supporting the complex systems that will drive the functionality of a bridge that is not only destined to be an infrastructure showpiece, but will help drive transport connectivity in the region for years to come.’ C M Y CM MY CY CMY K 24-25 Project Focus.indd 25 11/10/2016 13:00