Aluminum‑Core XLPE‑Insulated Non‑Magnetic‑Wire‑Armoured PVC‑Sheathed Power Cable

Aluminum‑core XLPE‑insulated non‑magnetic‑wire‑armoured PVC‑sheathed power cable is a medium‑and‑high‑voltage power‑transmission cable specially developed for 6kV‑35kV power distribution systems. Its conductive core is made of high‑purity aluminum conductor. Compared with copper‑core cables, aluminum‑core products feature lighter weight, lower material cost and outstanding electrical conductivity, which can meet the power‑delivery requirements of large‑scale long‑distance transmission projects. Cross‑linked polyethylene (XLPE) is adopted as the main insulating layer. After cross‑linking treatment, polyethylene forms a dense three‑dimensional network molecular structure, greatly improving insulation strength, heat‑resistance, anti‑ageing performance and electrical stability under medium‑high‑voltage operating conditions. Wrapped outside the insulated cores is the non‑magnetic metal‑wire armour layer. Different from traditional steel‑wire armour, this non‑magnetic structure effectively avoids magnetic‑induction loss and local overheating caused by alternating magnetic field, thus reducing extra energy consumption and electromagnetic‑field interference. The outermost polyvinyl chloride (PVC) sheath serves as a comprehensive protective barrier, shielding the internal structure from moisture, dust, sunlight ageing, minor mechanical abrasion and general chemical contamination. With this multi‑layer composite structure, the cable achieves an excellent balance of economic efficiency, stable high‑voltage performance, mechanical impact resistance and low magnetic interference, becoming an economical and practical wiring option for urban power grids, industrial parks, new‑energy stations and national infrastructure‑construction projects.

Strict quality‑control management is implemented throughout the whole manufacturing workflow. High‑quality aluminum rods are drawn and stranded into compact‑structured conductors to ensure stable long‑term current‑carrying capacity. XLPE insulation is extruded uniformly around the conductor under precisely‑controlled temperature and pressure parameters, eliminating hidden defects such as bubbles, impurities and uneven insulation thickness which may trigger partial discharge. After core‑stranding, non‑magnetic metal wires are wound tightly to form the armour layer, with strict inspection on winding density and uniformity. Finally, the outer PVC sheath is extruded, cooled and shaped. Every finished‑product cable undergoes a complete set of performance‑verification tests, including conductor‑resistance measurement, insulation‑resistance detection, partial‑discharge test, high‑voltage withstand test, armour‑layer continuity inspection and sheath dimensional verification. These rigorous inspection‑procedures remove potential safety‑hazards such as insulation breakdown, armour fracture and outer‑jacket damage, guaranteeing safe and reliable long‑time‑service in complex medium‑high‑voltage power‑supply environments. This cable is designed for fixed‑installation power‑transmission and distribution circuits, suitable for laying in cable trenches, tunnels, underground pipelines and ducts where mechanical‑extrusion risks exist and magnetic‑induction loss needs to be avoided. It can adapt to indoor, outdoor, underground and semi‑exposed laying‑scenarios.

Application: This product is suitable for circuits with AC 50 Hz and rated voltage from 6 kV to 35 kV for electric‑energy transmission and distribution.

Working at the industrial‑frequency of 50 Hz, the cable covers the common voltage‑grade range of medium‑voltage urban and industrial power‑supply networks. It undertakes the task of transmitting electric energy from substations to industrial zones, residential communities and large‑scale power‑consuming enterprises. The aluminum‑core design effectively reduces the overall weight of long‑distance‑laid cable lines, lowering construction difficulty and project investment cost, which brings remarkable economic benefits for large‑area power‑grid construction. The non‑magnetic‑wire armour eliminates over‑heating risks near precision‑control equipment and electromagnetic‑sensitive facilities, expanding its applicable scope in complicated industrial‑field environments.

Models: YJV32, YJLV32, YJV42, YJLV42 and flame‑retardant series, etc.

The above‑mentioned model series covers both copper‑core and aluminum‑core versions with different non‑magnetic‑wire‑armour specifications, and flame‑retardant‑enhanced variants are available for fire‑safety‑critical sites. Customers are free to select appropriate specifications according to load‑capacity demands, laying‑environment conditions and fire‑protection requirements.

Executive Standard: GB/T 12706‑2020

The national standard GB/T 12706‑2020 specifies unified requirements for raw‑material performance, structural dimensions, manufacturing processes, test‑items and acceptance criteria of power cables with rated voltages from 6 kV to 35 kV. All our cables are produced, inspected and delivered in strict accordance with this national specification, ensuring every product meets domestic industrial safety standards.

Operating Characteristics: 

‑ The maximum rated temperature of cable conductor: 90 ℃ 

‑ Under short‑circuit conditions (maximum duration no more than 5 seconds), the highest permissible temperature of cable conductor shall not exceed 250 ℃ 

‑ Ambient temperature during cable laying shall not be lower than 0 ℃

‑ The minimum bending radius shall be no less than 10 times of the cable outer diameter.

These technical parameters lay clear guidelines for product operation and field construction. Under normal continuous‑operation conditions, the conductor can work stably at 90 ℃, giving the cable a relatively high current‑carrying capacity. The short‑circuit temperature‑resistance index guarantees circuit safety under instantaneous fault‑current impact. Construction personnel should avoid laying operations when ambient temperature falls below 0 ℃, to prevent cracking damage to the outer sheath and insulating layer caused by low‑temperature brittleness. During transportation, hoisting and laying processes, the bending radius restriction must be followed, so as to avoid irreversible damage to armour‑layer and inner insulation from excessive bending.

Our aluminum‑core XLPE‑insulated non‑magnetic‑wire‑armoured PVC‑sheathed power cables and the full‑range of our cable‑product portfolio are extensively applied in metallurgy, electric power, energy, chemical industry, construction, shipbuilding, transportation and many other industrial sectors, as well as a large number of national key infrastructure‑construction projects.

Within the metallurgical industry, these medium‑high‑voltage aluminum‑core cables serve as main power‑supply trunk‑lines for smelting workshops, rolling‑mill production‑line distribution loops and large auxiliary‑equipment power‑transmission circuits. Metallurgical‑plants are equipped with high‑power continuous‑running production facilities, requiring stable medium‑voltage electric‑energy supply. Our cables deliver reliable power transmission for metallurgical‑production systems, supporting safe and uninterrupted industrial‑manufacturing workflows.

In the electric‑power sector, this cable series is widely deployed for urban and rural medium‑high‑voltage power‑grid upgrading projects, substation 6‑35 kV outgoing‑line circuits, power‑plant auxiliary‑equipment power‑distribution loops and regional long‑distance power‑supply trunk‑lines. Urban medium‑high‑voltage distribution networks cover wide municipal zones, industrial parks and new‑energy‑generation bases. Thanks to its lightweight aluminum conductor and non‑magnetic‑armour structure, the cable reduces engineering‑construction costs while avoiding magnetic‑interference risks, improving the stability and economy of regional power‑supply networks.

For energy‑development projects, the cables are used for on‑site medium‑high‑voltage power‑distribution systems of photovoltaic‑power stations, wind‑farm internal power loops, oil‑and‑gas‑field auxiliary‑equipment wiring and energy‑storage‑station power‑supply circuits. New‑energy projects are usually constructed in remote open‑air areas, and long‑distance cable‑laying is often required. The lightweight aluminum‑core design effectively lowers transportation and installation costs, while the armour‑layer provides strong mechanical‑protection for underground‑buried cables.

Chemical‑industrial parks adopt this cable type for medium‑high‑voltage power‑supply trunk‑lines of production reactors, large‑pumping‑station equipment and workshop power‑distribution systems. The PVC outer sheath offers basic anti‑pollution performance for general chemical‑plant environments, and the reinforced armour layer protects buried cables against soil extrusion and sharp‑object impact, ensuring stable power supply for chemical‑production processes.

In the construction industry, the cables are widely applied for medium‑high‑voltage trunk‑lines of large‑scale industrial parks, underground power‑distribution circuits of commercial complexes and municipal‑engineering supporting‑power‑supply systems. Ship‑building and marine‑engineering projects select these cables for shore‑based dock‑facility power‑distribution circuits and on‑land ship‑repair‑shop internal‑wiring systems. The transportation‑industry uses them for highway‑service‑area power‑supply circuits, railway‑station auxiliary‑equipment distribution loops, traffic‑hub internal‑power‑transmission lines and tunnel‑facility power‑supply wiring.

Apart from conventional industrial‑and‑civil‑engineering applications, our aluminum‑core medium‑high‑voltage power‑cables have been adopted in numerous national‑level key‑construction initiatives, including cross‑regional power‑grid upgrading schemes, large‑scale new‑energy‑base construction, high‑speed‑rail supporting‑power projects and major municipal‑reconstruction works. National strategic‑construction projects put forward strict requirements on circuit safety, long‑term reliability and construction economy, and our aluminum‑core non‑magnetic‑armoured cables provide high‑quality, cost‑effective electric‑energy transmission for these important national‑engineering‑tasks.

Supported by modern automated‑production workshops, complete electrical‑performance‑testing laboratories, mature medium‑high‑voltage cable‑manufacturing technology and strict internal quality‑management systems, our full‑range cable‑products enjoy an excellent nationwide market‑reputation. Our medium‑high‑voltage power cables, low‑voltage power cables, Control Cables, high‑temperature‑resistant silicone‑rubber cables, fluoroplastic special‑cables and other wire‑series products sell well across every province, municipality and autonomous region of China. We have built stable, long‑term and trust‑based cooperative partnerships with power‑grid corporations, metallurgical‑enterprise operators, petrochemical groups, construction general‑contracting firms, new‑energy‑project developers and transportation‑infrastructure builders. Customers consistently recognise our products for stable manufacturing‑quality, reliable field‑site adaptability and competitive cost‑performance advantages.

To deliver fast‑response, professional and full‑lifecycle technical‑support services for our clients, our company has built a nationwide localized‑service network. Permanent professional‑service offices have been established in core industrial‑region cities including Tangshan, Shanghai, Xi’an, Shandong and Xinjiang. Each regional office is staffed with experienced sales engineers and technical‑specialists familiar with local industrial‑project characteristics, regional construction‑code requirements and on‑site laying habits. Our local outlets provide a comprehensive suite of customer‑services: pre‑sales technical consultation, cable‑specification‑selection guidance, detailed laying‑specification explanation, on‑site construction‑technical instruction, installation‑quality follow‑up inspection, post‑project‑operation feedback monitoring and timely after‑sales maintenance support. Whenever engineering‑construction teams encounter technical‑difficulties such as minimum‑bending‑radius control, underground‑burial precautions or medium‑high‑voltage cable‑terminal‑processing requirements, local engineers can respond rapidly and deliver practical, targeted‑problem‑solving solutions. By combining high‑quality aluminum‑core XLPE‑insulated non‑magnetic‑wire‑armoured PVC‑sheathed power cables and our complete cable‑product portfolio with efficient, geographically‑close‑by professional services, our enterprise continuously supplies safe, stable and durable medium‑high‑voltage power‑transmission solutions for industrial‑automation customers, engineering contractors and national‑key‑project developers throughout China.