LV Sandwich Busbar Trunking

Qingdao Fenghua Electric Manufacturing Co., Ltd. manufactures premium LV Sandwich Busbar Trunking, a modular low-voltage power distribution trunking system. Different from air insulated busway, the sandwich type uses high-performance halogen-free insulating sheets tightly sandwiched between copper or aluminum conductors. The laminated clamping structure greatly reduces overall volume and restrains conductor displacement under short-circuit electromagnetic force. With fully enclosed metal housing, it provides good protection against dust and moisture. Plug-in tap-off boxes can be installed along the trunk at reserved positions for convenient branch power tapping. It is the preferred solution for projects with limited shaft or power room space, commonly used in new construction, capacity expansion and electrical renovation of industrial, commercial and data center low-voltage distribution systems.

Product Parameter (Specification)

Product Features and Application Scope

LV Sandwich Busbar Trunking is developed for low voltage heavy-load distribution scenarios with limited installation space. Its compact laminated structure brings outstanding mechanical rigidity and electrical performance.

Core Advantages

1. Ultra-compact Laminated Structure Busbars and insulating layers are closely stacked, minimizing overall size and saving valuable space in shafts and power rooms.

2. Superior Short-circuit Resistance The tight sandwich clamping structure firmly locks conductors, resisting huge electromagnetic force during short-circuit faults and preventing busbar deformation.

3. Low Impedance & Low Power Loss High-purity conductors with large contact area reduce impedance and contact resistance, lowering voltage drop and heat generation under continuous heavy load.

4. Reliable Environmental Protection Sealed metal housing protects internal conductors and insulation from dust, moisture and minor mechanical impact, suitable for most indoor industrial and commercial environments.

5. Modular Design & Complete Accessories Supplied with elbows, tees, expansion joints, end closures and plug-in tap-off boxes. Flexible modular segments adapt to complex trunk routing layout.

6. Customizable for LV Engineering Projects Qingdao Fenghua Electric can customize conductor cross-section, housing surface treatment and terminal connection plates to match transformers and LV switchgears.

Application Scenarios Data center LV main incoming trunk, heavy manufacturing factory power distribution, super high-rise vertical power supply, large commercial complex, substation low voltage interconnection, industrial park centralized power supply, electrical renovation and capacity expansion.

Production Details and Craftsmanship

Qingdao Fenghua Electric adopts professional lamination process for LV Sandwich Busbar Trunking. Conductors are precision cut and surface tin-plated or silver-plated. High-temperature halogen-free insulating films are sandwiched between each phase busbar. The whole assembly is clamped and enclosed inside rigid alloy housing with anti-corrosion coating. Every bus segment undergoes insulation resistance test, power frequency withstand voltage test, temperature rise test and short-circuit simulation test before delivery. We accept third-party witness inspection, non-standard prefabricated parts and bulk supply for EPC contractors.

Why Choose Qingdao Fenghua Electric

1. Mature LV Sandwich Busbar Trunking Production We have rich manufacturing experience for low voltage compact bus trunking, familiar with lamination technology, temperature rise and short-circuit testing requirements.

2. Strict Insulation Quality Control Rigorous inspection of insulating material, lamination tightness and insulation integrity to eliminate partial discharge risks.

3. Full Range of Matching Accessories Complete prefabricated fittings for direction change, thermal expansion compensation and branch tapping, supporting complex project layout.

4. Full-cycle Engineering Technical Service Provide load calculation, short-circuit parameter verification, routing optimization, on-site installation guidance and acceptance support.

5. Complete Technical Documents & Certificates Supply full test reports, engineering drawings and certificates required for tendering and project handover.

Conclusion

Qingdao Fenghua Electric Manufacturing Co., Ltd. provides high-performance LV Sandwich Busbar Trunking. With compact size, strong short-circuit resistance and low power loss, it is an ideal low-voltage trunking solution for heavy-load projects with limited installation space. We welcome bulk procurement, drawing customization and tender cooperation with global EPC companies and project owners.