3 Core medium voltage cable, the reasonable design of current carrying capacity and conductor cross-sectional area, material, and insulation thickness enables the cable to work stably for a long time under rated load, avoiding overload and overheating. It prevents the influence of the temperature of the use environment, wiring method, and other heat sources, and ensures the service life.
Min. installation temperature: 0°C
Operating temperature: -25°C to +90°C
Emergency operating temperature: 105°C
(max. operation of 36hrs, at 3 periods for 12 consecutive months of use)
Max. Short Circuit Temperature: 250°C
Application
Three core 12.7/24 kV aluminum medium voltage cable utilizes aluminum conductors, which are lighter and less expensive than copper conductors. It is ideal for long-distance overhead-to-underground transition lines, large-scale renewable energy projects requiring multiple kilometers of cable, and other projects within this voltage range. Rated at 12.7/24 kV, this cable is suitable for feeder connections between inverters, switchgear, and substations, ensuring that renewable energy enters the main grid with minimal losses. Aluminum conductor effectively combine resilience with economic efficiency.
Feature
• Conductor: Stranded Compacted Circular aluminium conductor as per AS/NZS 1125
• Conductor Screen: Extruded Semi-conductive compound
• Insulation: XLPE
• Insulation Screen: Extruded Semi-conductive compound
• Longitudinal Water blocking: Water blocking tape above and below the copper screen (Optional)
• Metallic Insulation Screen: Copper Wire Screen + helically applied copper tape
• binder tape/sheath over assembled cores
• Metallic Sheath: Lead Alloy (optional)
• Outer Sheath: Extruded Polyvinyl Chloride, Colour: Black
• Insect attack Protection: Polyamide Nylon (optional)
(Alternative Sheath: PVC + HDPE Outer Sheath or LSZH Outer Sheath, and parameters will change accordingly)
Certification
MV cable is SAA certified, with certification numbers: SAA242046 and SAA250307 (available on the certification website). SAA certification is more than just a label; it signifies that each medium voltage cable has been rigorously assessed to quality and safety standards. Customers can trace through the certification number, production records, and batch code, helping to reduce the risk of counterfeit products. This assurance of compliance demonstrates that it meets all key specifications, such as dielectric strength, fire resistance, and mechanical durability, ensuring safe use in harsh environments such as utilities, infrastructure, and industrial plants.
Factory
Dongguan Greater Wire & Cable Co., Ltd. is a professional medium voltage cable manufacturer with advanced, intelligent, and fully digitalized cable production facilities. By seamlessly integrating cutting-edge technologies, the factory eliminates the common errors and defects associated with traditional manual assembly. This digital transformation not only improves efficiency but also demonstrates our unwavering commitment to providing the highest reliability. Within the smart factory framework, the entire production process is streamlined and consistent, minimizing human variability and achieving unprecedented precision. Equipped with precise automated inspection systems, we implement rigorous quality control at every stage, from incoming raw materials to the final product.
In addition to pursuing technological excellence, Greater Wire also places a strong emphasis on corporate social responsibility and sustainable development. We significantly reduce our environmental impact through green production practices and the use of environmentally friendly materials. We also actively contribute to local communities, create jobs, and participate in public welfare initiatives. Guided by a comprehensive sustainability strategy, we continuously focus on energy conservation, emission reduction, and resource recycling to ensure environmental protection and long-term corporate sustainability.
who choose uS
who choose uS?
We not only have comprehensive production equipment and a strict quality management system, but we are also ISO 90001 certified and have obtained numerous international certifications, including UL, SAA, TUV, and CE. Every meter of cables meets international standards and customer requirements. We offer a comprehensive range of products, including construction, industrial, solar, and medium voltage wires. We also offer cables in various standards, including Australian, UL, Canadian, and Philippine standards. We export to over 80 countries and regions worldwide and are familiar with the standards of various markets. We also support OEM/ODM customization and offer flexible solutions. With extensive export experience, stable supply capacity, and professional technical support, we remain customer-centric, responsive to every need, and ensure the smooth progress of every customer's project.
one-stop solution
professional team
high quality
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FAQ
Q: How to choose the right cable model?
2. Current carrying capacity: Select a specification with sufficient ampacity according to the actual load. In general, the larger the cross-sectional area, the greater the current it can safely carry. Proper sizing helps prevent overload, overheating, or damage.
3. Use environment: In extreme temperatures, select materials with appropriate heat or cold resistance. For humid areas, waterproof options are required; in corrosive or oily environments, products with strong chemical resistance are preferable. Depending on the installation method-open, concealed, underground, or overhead-choose a design that provides the needed wear and tensile strength. For equipment that moves frequently, flexibility is essential. Additional requirements such as electromagnetic shielding, flame retardancy, or fire resistance should also be considered. All selections must comply with relevant industry standards or national regulations.
Q: Are you a manufacturer or trading company?
Q:How can we guarantee quality?
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|
No. of
Cores
|
Core Cross
sectional
Area
|
Nominal Diameter
|
||
|
Under
metallic
screen
|
Under
metallic
screen
|
Overall
|
||
|
No.
|
mm2
|
mm
|
mm
|
mm
|
| 3 | 35 | 21.1 | 22.6 | 54.0 |
| 3 | 50 | 22.2 | 23.7 | 57.0 |
| 3 | 70 | 23.8 | 25.3 | 60.0 |
| 3 | 95 | 25.4 | 26.9 | 64.0 |
| 3 | 120 | 27 | 28.5 | 67.0 |
| 3 | 150 | 28.3 | 29.8 | 70.0 |
| 3 | 185 | 30 | 31.5 | 74.0 |
| 3 | 240 | 32.3 | 33.8 | 80.0 |
| 3 | 300 | 34.5 | .36.0 | 85.0 |
| 3 | 400 | 37.2 | 38.7 | 91.0 |
| 3 | 500 | 40.6 | 42.1 | 99.0 |
|
No.of Cores
|
Core Cross sectional Area
|
Max. DC Resistance at 20˚C
|
Max. AC Resistance at 90˚C
|
Approx. Capacitance
|
Approx. Inductance
|
Approx.
Reactance |
Continuous Current Rating
|
||
| Buried direet in ground |
In a buried duct
|
In Air
|
|||||||
|
No.
|
mm2
|
Ω/km
|
Ω/km
|
µF/km
|
mH/km
|
Ω/km
|
Amps
|
||
| 3 | 35 | 0.868 | 1.113 | 0.16 | 0.625 | 0.196 | 119 | 103 | 132 |
| 3 | 50 | 0.641 | 0.822 | 0.17 | 0.604 | 0.190 | 140 | 122 | 158 |
| 3 | 70 | 0.443 | 0.568 | 0.2 | 0.571 | 0.179 | 171 | 150 | 196 |
| 3 | 95 | 0.32 | 0.411 | 0.22 | 0.551 | 0.173 | 203 | 179 | 236 |
| 3 | 120 | 0.253 | 0.325 | 0.24 | 0.533 | 0.167 | 232 | 205 | 273 |
| 3 | 150 | 0.206 | 0.265 | 0.25 | 0.522 | 0.164 | 260 | 231 | 309 |
| 3 | 185 | 0.164 | 0.211 | 0.28 | 0.510 | 0.160 | 294 | 262 | 355 |
| 3 | 240 | 0.125 | 0.161 | 0.31 | 0.496 | 0.156 | 340 | 305 | 415 |
| 3 | 300 | 0.1 | 0.129 | 0.33 | 0.484 | 0.152 | 384 | 346 | 475 |
| 3 | 400 | 0.778 | 0.101 | 0.37 | 0.473 | 0.149 | 438 | 398 | 552 |
| 3 | 500 | 0.0605 | 0.079 | 0.41 | 0.462 | 0.145 | 505 | 460 | 646 |
| 20 | 25 | 35 | 40 | 45 | 50 | 55 | 60 |
| 1.08 | 1.04 | 0.96 | 0.91 | 0.87 | 0.82 | 0.76 | 0.71 |
| 10 | 15 | 25 | 30 | 35 | 40 | 45 | 50 |
| 1.07 | 1.04 | 0.96 | 0.93 | 0.89 | 0.85 | 0.80 | 0.76 |
|
No.of Cores
|
Core Cross sectional Area
|
Max. pulling tension on conductor
|
Charging Current per phase
|
Zero sequence impedance
|
Electric Stress at Conductor Screen
|
Short circuit rating of Phase conductor
|
| No. | mm² | kN | Amps/Km | Ohms/Km | kV/mm | kA, I sec |
| 3 | 35 | 1.75 | 0.64 | 2.27 | 3.7 | 3.1 |
| 3 | 50 | 2.5 | 0.68 | 1.98 | 3.5 | 4.5 |
| 3 | 70 | 3.5 | 0.8 | 1.73 | 3.4 | 6.2 |
| 3 | 95 | 4.75 | 0.88 | 1.57 | 3.2 | 8.5 |
| 3 | 120 | 6 | 0.96 | 1.49 | 3.1 | 10.7 |
| 3 | 150 | 7.5 | 1 | 1.42 | 3.1 | 13.4 |
| 3 | 185 | 9.25 | 1.12 | 1.37 | 3.0 | 16.5 |
| 3 | 240 | 12 | 1.24 | 1.32 | 2.9 | 21.4 |
| 3 | 300 | 15 | 1.32 | 1.29 | 2.9 | 26.8 |
| 3 | 400 | 20 | 1.48 | 1.26 | 2.8 | 35.5 |
| 3 | 500 | 25 | 1.64 | 1.24 | 2.7 | 44.7 |
