Feichun PROTOLON(H) GHXSGHXOE: Halogen-Free Track Feeder Cable for Enhanced Safety in Railway Applications

Feichun PROTOLON(H) GHXSGHXOE: Halogen-Free Track Feeder Cable for Enhanced Safety in Railway Applications

A. Overview of Feichun PROTOLON(H) GHXSGHXOE 1.8/3KV

The Feichun PROTOLON(H) GHXSGHXOE 1.8/3kV is a high-performance single-core, halogen-free track feeder cable, specifically designed for DC power supply in railway applications.

It’s engineered to meet the unique demands of railway systems, including the S-Bahn Berlin and Hamburg, where high levels of safety, reliability, and durability are critical.

This cable excels in environments with harsh installation conditions such as dry, damp, and wet rooms, outdoors, in pipes and ducts, and in areas with small bending radii or vibrations. It’s particularly well-suited for feeding or connecting electrical systems in railroads, ensuring safe and efficient power transmission for traction systems.

B. Key Features and Benefits:

• Halogen-Free Construction: In case of a fire, it significantly reduces toxic smoke and corrosive gases, ensuring enhanced safety for personnel and equipment.

• Enhanced Fire Performance: Meets the stringent fire safety standards for both single and bunched cables, ensuring that the cable will not propagate flames in case of fire.

• Robust Design: Designed to withstand difficult laying conditions, the cable's oil resistance and durable construction make it reliable even in vibration-prone environments.

• Low Smoke and Flame Propagation: The halogen-free design, low smoke, and flame-retardant materials help improve safety during fire incidents, especially in tunnels and underground stations.

C. Target Audience:

This product is designed for railway infrastructure engineers, electrical contractors, and safety officers involved in DC traction power systems. It is ideal for railway systems that demand high safety standards, especially in areas where fire safety is a major concern.

II. Technical Specifications

A. Conductor Characteristics:

• Material: Copper, Plain, Finely Stranded (Class 5).

• Conductor Flexibility: Offers excellent flexibility and conductivity.

• Compliance: Adheres to DIN EN 60228 / IEC 60228 standards for conductors of insulated cables.

B. Insulation and Construction:

• Core Insulation: EPR Rubber — provides superior electrical insulation and resistance to temperature extremes.

• Inner Sheath: EVA Rubber — protects the core insulation and provides enhanced mechanical protection.

• Screen Construction: Wire Screen — to ensure electromagnetic compatibility (EMC).

• Screen Material: Bare, Finely Stranded Copper (Class 5) — offers additional durability and conductivity.

• Outer Sheath: EVA Rubber — offers mechanical protection and enhances environmental resistance.

C. Electrical Ratings:

• Rated Voltage (U0/U): 1.8/3 (3.6) kV DC.

• Test Voltage: 6 kV AC.

• Maximum Conductor Temperature: 90°C (standard operation).

• Maximum Temperature at Short Circuit: 250°C.

D. Temperature Ratings:

• Fixed Installation Ambient Temperature: -40°C.

• Minimum Laying Temperature: -25°C.

E. Mechanical Properties:

• Permanent Tensile Strength: 15 N/mm² (4500 N).

​Bending Radius:

Fixed Installed: 6 x D (250mm)

Free Moving: 10 x D (421mm)

Where D is the overall cable diameter.

F. Environmental and Fire Performance:

• Flame Retardant: Complies with EN/IEC 60332-1-2 for single cables and EN 60332-3-24 (Category C) for bunched cables.

• Low Smoke: Complies with IEC/EN 61034-2 — ensuring low smoke emissions in case of fire.

• Halogen-Free: Complies with IEC/EN 60754-1/2 to reduce the release of harmful gases during combustion.

• Oil Resistant: Complies with IEC/EN 60811-404.

CPR Reaction to Fire: B2ca(s1a, d0, a1), indicating the cable has:

s1a: Limited smoke production.

d0: No flaming droplets/particles.

a1: Low acidity of evolved gases.

III. Standards and Compliance

A. Importance of Standards Compliance

Ensuring compliance with industry standards is crucial for the safety and performance of cables in railway infrastructure.

Adhering to these standards guarantees the cable meets essential safety criteria, particularly regarding fire safety, electrical reliability, and mechanical durability.

B. Key Standards:

DIN VDE 0250-813: Cables for direct current traction systems.

DIN EN 60228 / IEC 60228: Conductors of insulated cables.

DIN EN 50363-1: General requirements for insulating and sheathing materials.

DIN EN 50363-2-1: Elastomeric compounds for low voltage energy cables.

IEC/EN 60811-404: Test methods for non-metallic materials.

EN/IEC 60332-3-24: Flame retardancy for bunched cables.

IEC/EN 61034-2: Measurement of smoke density.

IEC/EN 60754-1/2: Gases evolved during combustion of electric cables.

C. Compliance with DB Netz AG Requirements

The Feichun PROTOLON(H) GHXSGHXOE fulfills the System Requirements for Track Feeder Cables (1.8/3 kV) set by DB Netz AG, revision November 2009. This assures that the cable meets the specific needs of the German railway infrastructure.

IV. Common Challenges in DC Track Feeder Applications and Solutions

A. Harsh Environmental Conditions:

Challenge: Exposure to moisture, temperature fluctuations, and chemicals.

Solution: The double sheathing (EVA Rubber and halogen-free materials) provides excellent protection against harsh environments.

B. Mechanical Stress:

Challenge: Vibrations, bending, and mechanical stress during installation.

Solution: The finely stranded copper conductors and robust sheathing offer good resistance to mechanical stress, ensuring long-term reliability.

C. Electromagnetic Interference (EMI):

Challenge: Interference from surrounding electrical equipment.

Solution: The wire screen provides effective EMC shielding, ensuring smooth operation.

D. Fire Safety in Tunnels and Underground Stations:

Challenge: Fire risks in confined spaces.

Solution: The halogen-free construction, low smoke emission, and enhanced flame retardancy offer improved safety during fire incidents, meeting CPR B2ca requirements for fire performance.

E. Installation in Difficult Terrain:

Challenge: Installation in areas like pipes, ducts, or areas with small bending radii.

Solution: The flexible design and oil-resistant construction make installation in challenging terrains easy and safe.

V. Installation and Maintenance Best Practices

A. Proper Cable Handling and Installation:

• Adhere to recommended bending radii: Ensuring no damage during installation.

• Avoid direct burial: While the cable can be installed in pipes, ducts, or dry, damp, or wet rooms, it is not suitable for direct burial.

B. Correct Termination and Connections:

• Use appropriate connectors and ensure proper sealing to prevent water ingress and maintain electrical integrity.

C. Regular Inspection:

• Regularly inspect the cable, especially in areas subject to mechanical stress or harsh environmental conditions, to identify early signs of damage or degradation.

VI. Conclusion

A. Summary of Feichun PROTOLON(H) GHXSGHXOE Advantages:

The Feichun PROTOLON(H) GHXSGHXOE 1.8/3kV is a high-performance, halogen-free track feeder cable engineered for enhanced safety in railway applications.

Its robust design, oil resistance, and superior fire performance make it the ideal choice for safety-critical environments such as tunnels, underground stations, and other areas with strict fire safety requirements.

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.