Sandwich Busway (Compact Design)
Busbar Trunking System - Technical Specification
Selection of Busbar Materials
1. Housing: Aluminum-Magnesium Alloy Profile
Our housing is made of full aluminum-magnesium alloy, eliminating eddy current and hysteresis loss. It features light weight, high strength, corrosion resistance, and excellent electrostatic shielding.
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No eddy/hysteresis loss
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Light weight
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High strength
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Good appearance
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Corrosion-resistant
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High shielding efficiency
2. Premium T2 Grade Copper Busbars
Thin & wide copper bars with full-length tin/silver plating, leveraging skin effect and heat dissipation. Complies with industry standards while reducing customer costs. Avoid negative-tolerance copper and low-quality materials.
3. Insulation: Dupont Polyester Film
Class B (130°C) insulation with 30+ years aging resistance, smoke-free, halogen-free, non-toxic, and radiation-resistant.
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Class B 130°C
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Smoke-free
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Halogen-free
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Non-toxic
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Aging-resistant
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Radiation-resistant
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Moisture-resistant
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Flexible & tough
4. Installation Hardware (Full Zinc-Plated)
Complete set of zinc-plated hardware including end caps, wall sleeves, brackets, and hangers. Supports various installation methods with seismic resistance ≥ building standards.
Structural Characteristics
Preferred Snap-Fit Structure
Our dense busbar trunking uses an aluminum-magnesium alloy snap-fit housing, ensuring process control, easy on-site assembly, and high protection rating.
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Stable production process control
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Easy on-site assembly
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Reliable protection rating
Custom molds ensure a minimum thickness of 3mm at the thinnest section, providing tight clamping of conductors.
Comparison of Common Housing Structures
| Structure Type | Key Features |
|---|---|
| Four-Piece | Flexible assembly, but low efficiency and prone to phase offset |
| Snap-Fit | Eliminates phase offset, high efficiency, adaptable to multiple bar sizes |
| Three-in-One | Only for straight sections; requires mixed profiles for bends, causing appearance/protection issues |
| Two-Piece | Low material usage, but easily deformed and prone to welding failure |
Production Process
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01
Experienced Personnel & ManagementSkilled staff with complete quality control and production tracking systems.
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02
Specialized Production EquipmentSelf-developed riveting lines, multi-angle cutters, automatic punching machines, and testing instruments.
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03
Insulation ProcessDouble-layer individual wrapping for each conductor, ensuring reliable insulation.
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04
Waterproof WeldingStrict welding process to enhance protection performance.
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05
Tap-Off Unit ProcessStandardized manufacturing for multi-rated tap-off units, ensuring stable load capacity.
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06
Connector DetailsPrecision machining of connectors to prevent poor contact.
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07
Process Control & AccuracySealing strips on side panels, end caps, and connector covers to avoid reliance on on-site silicone.
Installation Services
01 Order Coordination
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Rapid response and dedicated on-site survey team
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Single-point responsibility for design, production, and installation
02 Site Survey & Design
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Site path confirmation with customer representatives
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Drawings comply with CECS standards
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Customer signature required for final approval
03 Installation Team Training
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Certified and experienced installers
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Trained in busbar structure, installation, and testing
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Full set of safety tools and PPE
04 On-Site Testing
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Phase sequence check and insulation resistance test
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System insulation ≥ 0.5MΩ, single unit ≥ 20MΩ
05 Final Acceptance Test
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PE-A-B-C-N phase-to-ground continuity test
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Cooperation with customer’s power-on acceptance inspection
