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View MoreProduct Overview Pre-fabricated branch cable (special branch cable) is a factory-manufactured power distribution product in which branch lines are pre-installed on the main cable according to design requirements. It is commonly used in modern buildings — especially high-rise buildings — for power distribution, and is widely applied in residential, commercial, and industrial settings due to its significant advantages in economic efficiency, technical advancement, and installation convenience. A pre-fabricated branch cable resembles a busbar duct in concept, integrating the main trunk cable, branch cables, and branch connectors into a single system designed and manufactured according to specific building structure and power distribution requirements, all completed in one pass on the factory production line.
Core Advantages and Features
1. High Power Supply Reliability
- No-joint design: The main trunk conductor has no field splices, greatly reducing fault points caused by improper on-site construction and ensuring better supply continuity.
- Quality unaffected by human factors: Branch connectors are mechanically manufactured in the factory, eliminating quality inconsistencies from manual on-site operations.
2. Convenient Installation and Maintenance
- Simple installation: Cables can be installed directly upon arrival on site without field joint fabrication, simplifying the construction process and effectively shortening the construction period.
- Low maintenance cost: Stable product performance, low failure rate, and near zero long-term maintenance.
3. Outstanding Environmental Resistance
- Air-tightness and waterproofing: Connectors manufactured using molded curing process offer good air-tightness and moisture resistance, ensuring stable operation even in relatively humid and harsh environments.
- Superior seismic performance: Compared to traditional busbar duct systems, pre-fabricated branch cables offer better earthquake resistance.
4. Good Overall Economic Efficiency
- Space-saving: Effectively reduces the area occupied by electrical shafts, improving building space utilization.
- Price advantage: Compared to equivalent busbar duct systems, pre-fabricated branch cables have a lower total cost.
Key Specifications and Technical Parameters
|
Item |
Typical Value/Description |
|
Rated Voltage (U0/U) |
0.6/1kV, suitable for low-voltage distribution systems |
|
Conductor Material |
Copper core; aluminum core available for some applications |
|
Insulation Material |
XLPE: max operating temperature 90°C, short-circuit up to 250°C. PVC: max operating temperature 70°C, short-circuit up to 160°C |
|
Flame-retardant/Fire-resistant Grade |
Customizable: ZA (Class A flame-retardant), ZB, ZR, NH (fire-resistant), etc. For high-safety projects, Class A fire-resistant (950-1000°C for 90 min) systems are available |
|
Connector Test |
Insulation resistance >= 200 MOhm; withstand voltage >= 3.5kV / 5min |
|
Design Standards |
Main trunk cable per GB/T 12706, GB/T 3956; flame-retardant per GB/T 19666 |
Application Areas
Pre-fabricated branch cables are excellent alternatives to busbar ducts in high-rise buildings. Main application scenarios include:
- Civil buildings: Vertical main power supply systems in electrical shafts of residential buildings, office buildings, hotels, hospitals, and shopping malls.
- Transportation facilities: Large-scale lighting and power supply in airports, ports, tunnels, and bridges.
- Industrial facilities: Power distribution in large production workshops and sports venues.
- Others: Lighting and power supply networks in mine shafts.
Customization and Selection Guide
Due to the highly customized nature of this product, procurement requires a detailed technical specification list. Key information to provide includes:
1. Main trunk cable: Model (e.g., YFD-YJV), rated voltage, conductor cross-section and core count (e.g., 4x185+1x95), total length, flame-retardant or fire-resistant requirements.
2. Branch cables: Cross-section, core count, and configured length for each branch.
3. Installation drawings: Precise locations of each branch connector on the main trunk cable.
4. Installation environment: Specify indoor or outdoor, vertical or horizontal, and any special protection requirements.
Pre-fabricated branch cable is a factory-prefabricated, highly efficient power distribution solution that plays an important role in modern building electrical systems due to its high reliability, convenient installation and maintenance, and comprehensive economic advantages.
| Model | Voltage level | Specification (number of cores x cross-sectional area) | Execution standard | Manufacturing branch |
| FZ-YJV FZ-VV FZ-Z*-YJ(R)V FZ-WDZ*-YJ(R)Y FZ-N(H)-YJ(R)V FZ-Z*N-YJ(R)V FZ-WDZ*N-YJ(R)Y FZ-BBTRZ |
0.6/1kV | 1×10~1×400 2×1.5~2×240 3×1.5~3×240 3×2.5+1×1.5~3×240+1×120 4×1.5~4×400 5×2.5~5×300 3×2.5+2×1.5~3×240+2×120 4×2.5+1×1.5~4×240+1×120 |
Q/320481SS516-2023 | Low-voltage cable factory |
| FZ-NG-A(BTLY) | 1×25~1×240 2×6~2×150 3×6~3×150 3×6+1×4~3×150+1×70 4×6~4×150+1×70 5×6~5×150+1×70 3×6+2×4~3×150+2×70 4×6+1×4~4×150+1×70 |
Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. is located in Changzhou, Jiangsu, China. It is a comprehensive trading company specializing in the export of industrial products. With years of international trade experience, the company has established strong channel resources and project collaboration experience in the African market.
By integrating high-quality manufacturing resources with a well-established supply chain, we provide reliable product supply and professional trade services to global customers, aiming to become an important bridge connecting Chinese manufacturing to the global market.