XCMK-HF Cable

What is XCMK-HF Cable?

The XCMK-HF cable is a Nordic-standard, low-voltage 0.6/1 (1.2)kV halogen-free screened power cable manufactured according to Finnish standard SFS 5546, Swedish standard SS 424 14 18, European standard HD 604 S1 5I, and IEC 60502-1. It is specifically engineered for fixed indoor and outdoor installations, surface wall runs, cable trays, and direct underground burial in accordance with applicable national electrical codes.

Constructed with cross-linked polyethylene insulation and a halogen-free polyolefin outer jacket, the cable prevents the release of dense smoke and corrosive halogen acid gases during a fire, safeguarding human evacuation routes and protecting sensitive electronic control systems from acidic damage. Its integrated screen—consisting of concentric copper wires bound by counter-helical copper tape—provides high-conductivity earth fault return capability alongside electromagnetic compatibility (EMC) shielding against industrial noise.

XCMK-HF Cable Construction

• Conductor: High-purity plain annealed copper: Class 1 circular solid copper (up to 6mm²), Class 2 circular stranded copper (up to 35mm²), and Class 2 sector-shaped stranded copper (above 35mm²) per IEC 60228.
• Insulation: Cross-Linked Polyethylene (XLPE) thermoset compound rated for continuous +90°C operation.
• Filler / Bedding: Halogen-free flame-retardant (HFFR) compound or tape filler to ensure a circular core assembly.
• Screen: Concentric copper wires and counter-helical copper tape delivering mechanical grounding and EMC shielding.
• Outer Sheath: UV-resistant, flame-retardant halogen-free polyolefin thermoplastic compound.
• Core Identification: 2 cores: Blue, Brown; 3 cores: Brown, Black, Grey; 4 cores: Blue, Brown, Black, Grey.
• Sheath Colour: Black.

Applications

XCMK-HF power cables are designed for primary low-voltage power feeding and sub-distribution where low-smoke, halogen-free fire safety and electromagnetic screening are required:

• Commercial & Public Buildings: Airports, transit terminals, hospitals, schools, and commercial venues requiring zero halogen acid release under EN 60754-2.
• Direct Soil Burial: Underground installation in trenches and external conduits compliant with local electrical wiring regulations.
• Industrial Facilities & Metallic Trays: Fixed cable runs attached directly to walls, metallic structures, ladders, and open cable raceways.
• Variable Frequency Drives (VFD) & Automated Plants: Concentric copper screening minimizes electromagnetic radiation and safely drains transient ground faults.

Specifications & Dimensions

Huadong Cable Group manufactures the full range of XCMK-HF power cables in 3-core and 4-core configurations, featuring phase conductor cross-sections from 1.5mm² up to 240mm² paired with concentric copper earth screens ranging from 1.5mm² to 120mm². Operating at a rated voltage of 0.6/1 (1.2)kV across a service temperature spectrum from -15°C to +90°C (short-circuit temperature rating up to +250°C), the cable series exhibits nominal overall diameters between 14mm (3 × 1.5/1.5mm²) and 60mm (4 × 240/120mm²) and nominal unit weights from 210 kg/km up to 10,960 kg/km. Maximum conductor DC resistances at 20°C strictly conform to IEC 60228 standards, scaling from 12.1 Ω/km for 1.5mm² down to 0.0754 Ω/km for 240mm² under a minimum bending radius of 10 times the overall cable diameter, with all dimensional tolerances aligning with SFS 5546 and HD 604 S1 5I standards.

Standards

Design & Harmonised Standards: SFS 5546, SS 424 14 18, HD 604 S1 5I, IEC 60502-1, IEC 60228
Flame Retardancy: EN 60332-3-23 (Bunched cable vertical flame propagation test)
Halogen-Free & Smoke Density: EN 60754-2 (Zero corrosive acid gases), EN 61034-2 (Low smoke emission density)
Voltage & Thermal Ratings: Uo/U (Um): 0.6/1 (1.2)kV; Operating: -15°C to +90°C; Short-circuit: +250°C; Min Bending Radius: 10 × OD
Regulatory Compliance: EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What is the dual engineering role of the copper wire and copper tape screen?
A: The concentric copper wires and tape provide a dedicated low-resistance protective earth (PE) path for short-circuit fault currents while forming an electrostatic barrier that reduces electromagnetic interference (EMI).

Q: Is XCMK-HF cable approved for direct burial in soil?
A: Yes, XCMK-HF is engineered for direct burial in soil, provided that regional and national installation practices and mechanical beddings are adhered to during laying.

Q: Why are conductors above 35mm² shaped into sector-form geometry?
A: Sector-shaped conductors interlock tightly within multi-core assemblies, eliminating void spaces to reduce the overall cable diameter and shipping weight compared to circular designs.

Q: What payment terms does Huadong Cable accept for international orders?
A: We accept standard international commercial payment terms, including Telegraphic Transfer (T/T, with 30% advance deposit and 70% against shipping documents) and 100% Irrevocable Letter of Credit (L/C) at sight.

XCMK-HF Cable – Why Choose Huadong?

Huadong Cable Group manufactures XCMK-HF 0.6/1kV halogen-free screened power cables to Nordic and European technical standards, with production testing verified in accredited laboratories. Using 99.99% pure electrolytic copper, our production lines fabricate Class 1 solid, Class 2 stranded circular, and sector-compacted conductors with consistent resistance metrics. Advanced extrusion extrudes uniform XLPE insulation and concentric copper screening, ensuring balanced dielectric stability and flame-retardant performance under EN 60332-3-23 test conditions.

Backed by more than two decades of industrial cable manufacturing experience, Huadong Cable Group operates facilities certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. Direct supply from the factory provides competitive pricing, complete Mill Test Certificates (MTC) tested in accredited testing facilities, project drum lengths on ISPM 15 heat-treated export reels, and scheduled global freight forwarding for contractors and industrial purchasers worldwide.