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Electricity is an increasingly important component in our world today. Electrical installations are getting larger and with them the number of connections is growing. In larger buildings, electricity enters via one or more transformers at a central switchboard: the main distribution board. In addition to transformers, generators and UPS systems are also used, and all these components must be connected together. To do this, one can use heavy-duty cable connections or a busbar trunking system.
"Rail ducts have specifications similar to those of the rail systems in distribution cabinets and are available in various designs. For example, there are simple transport rails as well as distribution rails from which one can branch off. Compared to cable routes, busbar trunking takes up less space. In addition, they are more environmentally friendly. Installing a busbar trunking system can be done in less time. Moreover, its flexible nature allows for adjustments and expansion in the future. The modular aspect of busbar trunking systems is an acclaimed plus," says Paul Langbein of STbenelux.
"As specialists in designing and implementing busbar trunking systems, we find that time and time again. In addition, each type of busbar has its own situation- and environment-specific advantages. We can get away with a variety of brands, but represent the Starline brand and also really enjoy working with Schneider Electric's Canalis fabrication. This allows us to serve different market segments with the product that is most suitable in view of its characteristics. For us, every project is unique. Based on drawings, meticulous measurements and research on location, we always work out the most efficient solution. Likewise for Vergeer Holland."
Commissioned by Kromwijk Elektro, expertise partner Elektro Internationaal supplied the main distributor in Schneider Electric's Prisma P system. STbenelux provided the installation of over 600 meters of Canalis brand busbar trunking, also from Schneider Electric. The busbar system provides the interconnection of the transformers with the main distributor and the energy transport to the various sub-distributors and heavy consumption units, such as the complete refrigeration plant. "The transformer is in its own switch house, separate from the main building. Therefore, a weather- and wind-proof connection between the two buildings was needed. Hence also the choice of Canalis with a high IP rating. The rails used are quite heavy in weight and therefore heavy to install. Moreover, they run right through the steel structure of the building. But we like complex projects and this installation also has its specific challenges. The main distributor is connected by two separate rails of 2,500 amps each to two transformers over a length of 11 meters. From the main distributor, several busbar trunking runs into the building. One of the main rails of 1,600 amps runs across the property and is 120 meters long. From this rail, another 60-meter branch splits off to the side halfway up, while one level higher, another 8 rails, each 50 meters long, are placed to feed some smaller, local processes. To the roof there is a busbar trunking that links the PV (solar cells) system to the electrical system," Langbein explains. "All in all, a wonderful project to have the opportunity to carry out."
