Single Core 12.7/22kV Copper MV Underground Cable

12.7/22kV copper MV underground cable features a Class 2 conductor made of high-purity electrolytic aluminum. The conductor is wrapped in a material designed to enhance electric field dispersion across the cable conductor's surface. The cable is fully insulated using a cross-linked material that ensures reliable insulation coverage. To simplify connection processes, the semiconductive layers in contact with the insulation are peelable and partially bonded. For added protection, a metallic screen surrounds the cable, with helically wrapped copper wires providing shielding. Additionally, a layer of hygroscopic material beneath the outer sheath prevents the longitudinal spread of water, enhancing the cable's durability in underground environments.

Min. installation temperature: 0°C

Operating temperature: -25°C to +90°C

Emergency operating temperature: 105°C

Max. Short Circuit Temperature: 250°C

• Conductor: Stranded Compacted Circular Copper conductor as per AS/NZS 1125

• Conductor Screen: Extruded Semi-conductive compound

• Insulation: XLPE

• Insulation Screen: Extruded Strippable Semi-conductive compound

• Longitudinal Water blocking : Water blocking tape above and below copper screen (Optional)

• Metallic Insulation Screen: Copper Wire Screen + helically applied copper tape (E/F current capacity – Based on requirement)

• Metallic Sheath: Lead Alloy (optional)

• Termite Protection: Polyamide (Nylon -12) (optional)

(Alternative Sheath: PVC+HDPE Composite Sheath or PVC + Nylon + HDPE

(composite sheath with anti-termite properties) or LSZH Outer sheath, and parameters will change accordingly)

Greater Wire manufacturer adopts ISO 9001 quality management system and has established strict quality monitoring procedures. From raw material warehousing inspection, production process monitoring to finished product testing, each link is carefully inspected. The factory is equipped with high-precision testing equipment, such as high-voltage testers, fire-resistant testing devices, etc., to ensure that the electrical properties, mechanical properties and environmental resistance of each batch of products meet the relevant standards. Our factory has a professional R&D team that focuses on the research and development of new materials and technologies for wires and cables. Through continuous innovation, R&D personnel have developed cable products that are more durable, more energy-saving and more environmentally adaptable to cope with market changes and new customer needs. Our factory cooperates with well-known domestic and foreign colleges and scientific research institutions, and regularly launches new products such as environmentally friendly cables, ultra-high voltage cables and intelligent cables, and is at the forefront of the industry.