Main characteristics of branch cables

2025-09-02 Leave a message

Branch cables are a new generation of medium- and low-voltage power supply line systems developed in the mid-to-late 1990s by a handful of industrially advanced countries. They offer advantages such as safe and reliable power supply, low operating costs, simple installation, low environmental requirements, and maintenance-free operation, leading to their widespread adoption and application.


Based on the development prospects of branch cables and the reform of the power industry, our company has employed senior engineers and experts. Under their guidance, we have absorbed advanced international technologies and summarized domestic experience to develop and manufacture the "Ansheng" brand branch cables.


YFD branch cables, with their rational structure, advanced technology, and rigorous testing, are industry-leading in quality. They are widely used in power distribution systems for residential buildings, high-rise office buildings, tunnels, hotels, hospitals, shopping malls, and other areas. They can also be used in lighting systems requiring branching from main lines (such as highways, bridges, tunnels, and airport runways).


Main Features of the YFD Series Branch Cables


1. Insulation resistance ≥ 200MΩ.


2. Dielectric withstand voltage ≥ 3.5kV/5min.


3. The cable's long-term operating temperature is 70°C for PVC insulation and 90°C for cross-linked polyethylene insulation. 4. Flame-retardant branch cables, with a sheath self-extinguishing time of ≤12s, comply with the requirements of GB/T19666-2005.

5. Fire-resistant cables, in addition to providing power under normal operating conditions, can also maintain normal operation for 90 minutes in the event of a fire, complying with the requirements of GB/T19666-2005.

6. Excellent corrosion resistance, resistant to inorganic salts, oils, alkalis, acids, and organic solvents.

7. Cross-linked branch cables offer excellent thermal stability and aging resistance.


Advantages of the FYD Series Branch Cables


Excellent power supply reliability

1. The main cable conductors are jointless, ensuring excellent continuity and reducing points of failure.

2. Branch joints are all mechanically manufactured, resulting in high-quality connections and minimal contact resistance, unaffected by thermal expansion and contraction.

3. Branch joints are sheathed in a short time, preventing oxidation of the exposed copper conductors at the joint contact, which could cause changes in contact resistance.


Significantly Reduces Power Distribution Costs

1. Compared with cable trough transmission, this system reduces construction costs, offers high technical and economic indicators, and delivers significant overall economic benefits.

2. Branching can be performed without contacts within a specified length range according to design requirements.


Various Varieties and Specifications, Flexible Selection, and Any Combination

1. Main cables range from 10 mm² to 500 mm², and branch cables range from 10 mm² to 240 mm², allowing for flexible selection and combination.

2. A wide variety of cable types, including VV, ZR-VV, NH-VV, YJV, ZR-YJV, and NH-YJV, can be selected as needed.

3. Branching joints can be flexibly positioned to meet the needs of floors, tunnel junctions, and highway streetlights.


Low Installation Environment Requirements and Easy Construction

1. No requirements for civil engineering space, minimal floor space occupied, simple and convenient installation, and minimal labor intensity. 2. Branches can be created at fixed lengths based on load requirements, eliminating the need for intermediate junction boxes. Lighting branch conductors can be installed directly, eliminating the need for brackets and other equipment, reducing investment.

3. Cables can be installed in a suspended manner, with conductors directly connected to the load distribution cabinet (box) via branch points.

4. Cables can operate in harsh environments and meet flame retardancy and fire resistance requirements.

The branch line's small bend radius reduces installation difficulty, material costs, and space requirements.