Energy-saving procurement of low-voltage wiring trunking

Energy-efficient low-voltage trunking can be achieved by selecting busbar trunking systems that reduce material use, installation time, and power losses while complying with recognized standards.

Key Considerations for Procurement

1. System Type and Application Low-voltage trunking systems are generally categorized into distribution trunking (with tap-off outlets for flexible power distribution) and feeder trunking (without tap-offs, used for main supply runs) . Choosing the appropriate type based on the installation layout—vertical, horizontal, or combined—can minimize unnecessary cabling and reduce energy losses. 2. Material Selection Busbar trunking can use aluminium or copper conductors. Aluminium is lighter and often more cost-effective, while copper offers lower electrical resistance, reducing voltage drop and power loss, which contributes to energy efficiency . The choice should balance initial cost, conductivity, and long-term energy savings. 3. Energy Efficiency and Power Loss Energy-saving trunking systems are designed to minimize voltage drop and power loss. Engineered busbar trunking reduces the number of cable runs, lowers resistance, and allows multiple tap-off points, which decreases the overall energy consumption compared to traditional cabling . 4. Installation and Labor Savings Busbar trunking requires fewer fixings per meter and allows for simpler repositioning of outlets, reducing installation time and labor costs. Efficient installation not only saves money but also reduces the embodied energy associated with construction activities . 5. Compliance and Safety Standards Ensure that trunking systems are verified to standards such as BS EN 61439-6, which covers design, installation, and safe operation. Compliance ensures reliable performance, inherent safety, and energy-efficient operation . 6. Lifecycle and Maintenance Procurement should consider low maintenance costs, adaptability to future requirements, and safe recycling. Systems with modular tap-off units and extendable designs allow for energy-efficient upgrades without replacing the entire installation . 7. Procurement Strategy

• Use tender platforms and RFPs to source competitive bids for low-voltage trunking .
• Evaluate suppliers based on energy efficiency, compliance, and total cost of ownership, not just initial purchase price.
• Consider engineered solutions from reputable manufacturers that provide technical support and standardized products .

Summary

Energy-saving procurement of low-voltage wiring trunking involves selecting busbar trunking systems that reduce material use, minimize power loss, and allow flexible, extendable installations. Focus on material choice, compliance with standards, installation efficiency, and lifecycle costs to achieve both energy and cost savings while ensuring safety and adaptability for future electrical needs.