A/XMK Plus Cable

What is A/XMK Plus Cable?

The A/XMK Plus Cable is a 0.6/1kV low-voltage single-core power distribution cable featuring compacted Class 2 aluminium (AXMK) or copper (XMK) conductors, XLPE insulation, and a self-extinguishing, UV-resistant halogen-free polyolefin outer jacket complying with IEC 60502-1, HD 603-SD S1, SFS 4879, and EN 60332-1 Cat. B standards. It is specifically engineered as a high-performance modern replacement for legacy AXPK and AXPK-PE cables across utility, commercial, and industrial power networks.

Designed for demanding energy distribution networks, the cable combines an operating voltage of 0.6/1kV and a 4kV/50Hz test voltage with low dielectric losses and an elevated +90°C continuous conductor rating. Its heavy-duty, halogen-free polyolefin outer sheath provides chemical resistance and mechanical resilience against soil friction and moisture ingress during direct ploughing down, while eliminating corrosive acid gas emissions during fire conditions to preserve personnel safety and safeguard electrical substation equipment.

A/XMK Plus Cable Construction

• Conductor: AXMK: Class 2 round stranded and compacted aluminium conductor; XMK: Class 2 round stranded and compacted bare copper conductor per IEC/EN 60228.
• Insulation: Cross-Linked Polyethylene (XLPE) delivering high thermal overload endurance and low dielectric loss.
• Inner Bedding: Direct core extrusion assembly optimized for compact profile and high mechanical flexibility.
• Screen / Armour: Unarmoured, non-screened single-core configuration optimized for high current carrying capacity and ploughing flexibility.
• Outer Sheath: UV-resistant, self-extinguishing, halogen-free polyolefin compound complying with EN 60332-1 Cat. B flame retardancy standards.
• Core Identification: Black.
• Sheath Colour: Black.

Applications

A/XMK Plus cables are engineered for high-reliability primary power feeding, public electricity distribution, and substation cabling across Nordic and international power utilities.

• Direct Ploughing Down & Underground Networks: Utility energy distribution lines ploughed directly into open trenches, rural terrain, and rocky ground without additional conduits.
• Substations & Cable Ducts: Main power feeders routed through concrete cable ducting, trenches, and underground raceways.
• Residential & Commercial Service Connections: Underground house connections feeding main low-voltage switchboards and power distribution centers.
• Fixed Indoor & Outdoor Installations: Industrial manufacturing plants and processing facilities requiring self-extinguishing, halogen-free cable properties.

Specifications & Dimensions

The A/XMK Plus cable portfolio encompasses single-core configurations with nominal cross-sectional areas of 300mm², 500mm², and 800mm² for the aluminium AXMK series (delivering nominal cable weights of 490 kg/km, 620 kg/km, and 710 kg/km respectively), as well as a 300mm² copper XMK variant (nominal weight 710 kg/km). Rated for 0.6/1kV with a 4kV/50Hz test voltage, it operates at a continuous maximum conductor temperature of +90°C, withstands short-circuit temperatures up to 250°C, and permits laying temperatures down to -20°C with a minimum bending radius of 12 times the overall diameter. Conductor DC resistance values at 20°C reach 0.100 Ω/km (300mm² AL), 0.0605 Ω/km (500mm² AL), 0.0367 Ω/km (800mm² AL), and 0.0601 Ω/km (300mm² CU), with current carrying capacities spanning up to 1050A in air and 1000A in ground, all strictly adhering to IEC 60502-1 and SFS 4879 standards.

Standards

Design & Testing Standards: IEC 60502-1, HD 603-SD S1, SFS 4879
Flame Retardancy: EN 60332-1 Cat. B (Self-extinguishing)
Voltage Rating (Uo/U): 0.6/1kV (Test Voltage: 4kV / 50Hz)
Temperature Spectrum: Maximum conductor temp: +90°C; Short-circuit temp: 250°C; Laying temp: down to -20°C
Minimum Bending Radius: 12 × overall diameter
Regulatory Compliance: CE Marked, European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006

Frequently Asked Questions

Q: What are the key advantages of A/XMK Plus when replacing traditional AXPK cables?
A: A/XMK Plus features a halogen-free, self-extinguishing polyolefin sheath with enhanced UV stability and cold resistance down to -20°C, offering superior fire safety and improved mechanical resilience for direct ground ploughing without emitting corrosive acid gases.

Q: What is the primary difference between the AXMK and XMK cable designations?
A: The AXMK variant utilizes Class 2 stranded compacted aluminium conductors for cost and weight reduction in utility grids, whereas the XMK variant utilizes Class 2 compacted bare copper conductors for higher ampacity and lower electrical resistance in space-constrained installations.

Q: Can A/XMK Plus cables be ploughed directly into the ground during cold weather?
A: Yes, the cable is specifically formulated and mechanically certified for ploughing down and underground laying at ambient temperatures as low as -20°C while maintaining a minimum bending radius of 12 times the overall diameter.

Q: What commercial payment terms does Huadong Cable Group accept for international utility export 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.

A/XMK Plus Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures A/XMK Plus power cables in strict adherence to IEC 60502-1, HD 603-SD S1, and SFS 4879 standards, with full validation through accredited laboratory testing for insulation integrity, sheath elongation, and flame-retardant performance. Our production facilities utilize high-purity electrical grade aluminium and 99.99% oxygen-free copper rods processed on advanced multi-wire compacting and stranding lines. Equipped with precision dry-curing XLPE extrusion systems and specialized UV-stabilized, halogen-free compounding equipment, we deliver conductors that maintain electrical stability up to +90°C and resist short-circuit surges up to 250°C under tough environmental conditions.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates modern heavy extrusion lines certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating commercial intermediaries, we provide competitive factory-direct pricing, 100% Mill Test Certificates (MTC) tested in accredited testing facilities, continuous project-specific drum lengths on robust ISPM 15 heat-treated export reels, and seamless door-to-port global logistics for EPC contractors, regional utilities, and infrastructure developers worldwide.