Feichun AFUMEX (N)2XS(F)H 1.8/3KV: Halogen-Free Track Feeder Cable with Longitudinal Watertight Screen for Enhanced Safety and Reliability
A. Overview of Feichun AFUMEX (N)2XS(F)H 1.8/3KV:
The Feichun AFUMEX (N)2XS(F)H 1.8/3KV is a state-of-the-art single-core track feeder cable designed specifically for power distribution and connections in demanding environments.
This cable is particularly suited for industrial facilities, power stations, and critical railway applications, especially in confined spaces like railway tunnels. A standout feature of this cable is its longitudinal watertight screen, which enhances reliability and safety in wet environments.
B. Key Features and Benefits:
Halogen-Free Construction:
The cable is made with halogen-free materials, which means it minimizes the release of toxic smoke and corrosive gases during a fire. This makes it ideal for installations in tunnels, confined spaces, and other areas where safety during a fire is critical.
Enhanced Fire Performance:
Feichun AFUMEX (N)2XS(F)H 1.8/3KV meets stringent fire safety standards for both single cables and bunched cables, ensuring safe operation even in high-risk fire environments.
Longitudinal Watertight Screen:
This essential feature prevents water ingress and water propagation along the length of the cable, ensuring that the cable remains reliable and safe in wet conditions, particularly in railway tunnels and industrial environments prone to moisture exposure.
Robust Design:
The cable is built to withstand harsh environments. It can be installed both indoors and outdoors, in ducts or free air, though it is not designed for direct burial.
C. Target Audience:
This product is ideal for railway infrastructure engineers, electrical contractors, safety officers, and industrial facility managers.
Those who are focused on fire safety, water resistance, and operational reliability in challenging environments will benefit greatly from the Feichun AFUMEX (N)2XS(F)H 1.8/3KV cable.
II. Technical Specifications
A. Conductor Characteristics:
- Conductor Type: Bare Copper, Round Stranded (RM) – this ensures excellent electrical conductivity and flexibility for various applications.
B. Insulation and Construction:
Core Insulation: Cross-linked Polyethylene (XLPE) is used for the core insulation, offering excellent electrical and thermal properties, ensuring the cable operates safely and efficiently even at higher temperatures.
Screen Construction: The cable features a metal tape and wire screen, providing electromagnetic compatibility (EMC) and further enhancing the cable's performance in environments where electromagnetic interference (EMI) could be an issue.
Screen Material: Bare Copper, which helps maintain the cable's electrical performance over time.
Inner Sheath: Made of Low Smoke Zero Halogen (LSZH) material, the inner sheath prevents the spread of toxic smoke in the event of a fire, which is essential for fire safety in confined spaces.
Outer Sheath: Also constructed from Low Smoke Zero Halogen (LSZH) material, providing additional safety features by limiting the spread of smoke and toxic gases during fire emergencies.
Longitudinal Watertight Screen: Prevents water migration within the cable core, making the cable ideal for use in railway tunnels and other wet environments.
C. Electrical Ratings:
| Electrical Rating |
Value |
| Rated Voltage (U0/U) |
1.8/3 (3.6) kV |
| Maximum Conductor Temp |
90°C |
| Max Conductor Temp (Short Circuit) |
250°C |
D. Temperature Ratings:
- Laying Temperature (min): -5°C – allowing the cable to be laid in cold environments without compromising its integrity.
E. Mechanical Properties:
| Property |
Value |
| Permanent Tensile Strength |
50 N/mm² |
| Bending Radius |
15 x OD (Overall Cable Diameter) |
F. Environmental and Fire Performance:
| Property |
Value |
| Halogen-Free |
Yes (DIN EN 50267-2-2) |
| Low Smoke |
Yes (EN 61034 / IEC 61034 / EN 50268) |
| Flame Retardant |
Yes (DIN EN 60332-1-2, DIN EN 60332-3-24) |
| CPR Reaction to Fire |
B2ca(s1a, d1, a1) |
| UV Resistant |
Yes |
III. Standards and Compliance
A. Importance of Standards Compliance:
Feichun AFUMEX (N)2XS(F)H 1.8/3KV has been carefully engineered to meet global standards for safety and performance.
Ensuring standards compliance is critical in environments where fire and electrical safety are paramount, such as in railway tunnels and industrial facilities. Compliance ensures the cable’s reliability and safe operation throughout its life cycle.
B. Key Standards:
- DIN EN 50575: Covers the reaction to fire requirements for power, control, and communication cables in construction works.
- DIN VDE 0276-604: Specifies power cables with extruded insulation for rated voltages from 3.6 kV to 36 kV.
- DIN EN 60332-1-2: A test for vertical flame propagation for a single insulated wire or cable.
- DIN EN 60332-3-24: Tests on bunched wires or cables to assess fire performance.
- DIN EN 50267-2-2: Determines the degree of acidity of gases emitted during combustion.
- EN 61034 / IEC 61034 / EN 50268: Measurement of smoke density of cables burning under defined conditions.
IV. Common Challenges and Solutions in Trackside and Industrial Applications
A. Fire Safety in Tunnels and Confined Spaces:
Problem: In confined spaces like tunnels, the risk of fire is high, and traditional cables may release toxic smoke, increasing the danger to personnel.
Solution: The halogen-free construction of the Feichun AFUMEX (N)2XS(F)H 1.8/3KV significantly reduces the release of toxic gases, providing safety in the event of a fire. The low smoke and flame retardant properties further enhance safety.
B. Water Ingress and Longitudinal Water Propagation:
Problem: In tunnels and wet environments, water ingress into cables can cause short circuits or degradation over time.
Solution: The longitudinal watertight screen prevents water from entering and traveling along the length of the cable, ensuring reliable operation even in moist conditions.
C. Electromagnetic Interference (EMI):
Problem: Electromagnetic interference can affect the performance of sensitive equipment, especially in industrial and railway environments.
Solution: The metal tape and wire screen offer electromagnetic shielding, preventing EMI and ensuring the proper functioning of connected equipment.
D. Installation in Ducts and Free Air:
Problem: Installing cables in ducts or free air without proper design can lead to mechanical stresses or improper cooling.
Solution: The robust design of the Feichun AFUMEX (N)2XS(F)H 1.8/3KV ensures that it can be safely installed in ducts or free air, but direct burial should be avoided to maintain the integrity of the cable.
E. Cable Handling and Installation:
Problem: Improper installation practices can damage the cable, especially at bends and terminations.
Solution: Ensure proper handling, installation, and termination practices. Follow the recommended minimum bending radius of 15 x OD to prevent damage to the cable.
V. Installation and Maintenance Best Practices
A. Proper Cable Handling:
Always handle the cable with care to avoid damage to the outer sheath or the watertight screen. Take steps to prevent kinking or excessive bending during installation.
B. Installation in Ducts and Free Air:
When installing in ducts or free air, ensure the cable is properly supported and spaced. Use appropriate ducts and ensure there is adequate ventilation to prevent overheating.
C. Correct Termination and Connections:
Use connectors and terminations specifically designed for XLPE cables. Proper sealing is essential to maintain the integrity of the watertight screen and prevent water ingress.
D. Regular Inspection:
Inspect cables regularly, especially in areas exposed to mechanical stress, environmental factors, or water. Ensure the outer sheath and terminations are intact.
VI. Conclusion
A. Summary of Feichun AFUMEX (N)2XS(F)H advantages:
The Feichun AFUMEX (N)2XS(F)H 1.8/3KV is a high-performance cable that combines halogen-free construction, fire safety, and water resistance with a robust design.
The key longitudinal watertight screen ensures its reliability even in wet environments like railway tunnels. Its superior fire performance and resistance to electromagnetic interference make it the ideal choice for critical infrastructure.
B. Importance of Proper Installation and Maintenance:
To maximize the longevity and performance of the Feichun AFUMEX (N)2XS(F)H 1.8/3KV, it is crucial to follow the proper installation practices. Avoid direct burial, follow the minimum bending radius guidelines, and regularly inspect the cable for signs of damage. This ensures that the cable continues to provide reliable power distribution in even the most challenging environments.
By addressing key challenges like fire safety, water ingress, and electromagnetic interference, the Feichun AFUMEX (N)2XS(F)H 1.8/3KV provides a superior solution for industries demanding high safety standards and reliable performance.
Note: This is just part of the standard parameters of our products. Please contact our Engineer if you need more. And the information contained within this webpage is for guidance only and is subject to change without notice or liability. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All pictures shown are for illustration purposes only. The actual product may vary. All the information is provided in good faith and is believed to be correct at the time of publication.
