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The 16mm twin core solar cable, with each core having a cross - sectional area of 16 square millimeters, is a high - capacity cable designed for heavy - duty power transmission in photovoltaic (PV) systems. Building on the general features of twin core solar cables, this specific 规格 (specification) stands out for its ability to handle substantial electrical loads, making it a crucial component in large - scale solar installations.
I. Enhanced Structural Design and Materials
1.1 Conductors
Material: Crafted from high - purity oxygen - free copper (purity ≥99.97%) and tinned, the conductors of the 16mm twin core solar cable offer superior electrical conductivity. The large cross - sectional area, combined with the high - quality copper, significantly reduces electrical resistance. This allows for efficient power transfer with minimal power loss, even when transmitting power over relatively long distances in large PV systems.
Stranding: The stranded construction of the conductors provides a good balance between flexibility and strength. Despite its large size, the cable can still be routed around complex structures on rooftops, through conduits, or in large - scale ground - mounted solar farms, enabling installers to adapt to various installation environments.
1.2 Insulation Layer
Inner Insulation: Similar to other high - quality twin core solar cables, the 16mm variant typically uses cross - linked polyethylene (XLPE) or cross - linked polyolefin (XLPO) as the inner insulation material. This insulation offers excellent electrical isolation, effectively preventing electrical leakage and short circuits. With its high thermal stability, it can withstand a wide temperature range from - 40°C to + 90°C, and short - term spikes up to + 120°C, ensuring reliable performance in diverse climates.
Insulation Thickness: The insulation layer is carefully designed to provide adequate protection while maintaining a reasonable overall cable size. The thickness is optimized to ensure both insulation performance and ease of installation, considering the larger diameter of the 16mm cable.
1.3 Outer Sheath
Material: Constructed from UV - stabilized, halogen - free thermoplastic elastomer (TPE), the outer sheath of the 16mm twin core solar cable offers comprehensive protection. It provides robust resistance to long - term UV radiation, moisture, abrasion, and exposure to mild chemicals, safeguarding the cable's internal components and ensuring its long - term durability in outdoor PV applications.
Color Coding: Usually color - coded for easy polarity identification, with a common convention of black for the negative conductor and red or brown for the positive conductor. This simplifies the correct connection process during installation, reducing the risk of errors in large and complex PV systems.
II. Impressive Technical Specifications
Parameter | Details |
Cross - Sectional Area per Core | 16 square millimeters |
Total Cross - Sectional Area | 32 square millimeters |
Rated Voltage | 1000V DC or 1500V DC |
Current Rating (90°C) | 65A per core, 130A in total |
DC Resistance (20°C) | ≤1.21Ω/km per core |
Overall Diameter | Approximately 11 - 12mm |
Minimum Bend Radius | 6 - 8 times the cable diameter (66 - 96mm) |
Flame Retardancy | Complies with IEC 60332 - 1 - 2 |
Certifications | TÜV EN 50618, IEC 62930, UL 4703, RoHS |
III. Distinctive Performance Features
3.1 High - Current Transmission Capacity
The most notable feature of the 16mm twin core solar cable is its high current - carrying capacity. With a total current - carrying capacity of 130A at 90°C, it can easily handle the significant power output of large - scale PV systems. In utility - scale solar farms or large commercial and industrial PV installations with power outputs in the hundreds of kilowatts or even megawatts, this cable ensures that the power generated by numerous solar panels can be efficiently transmitted to inverters and then to the electrical grid or internal electrical systems, minimizing power losses and maintaining system efficiency.
3.2 Long - Term Reliability
Thanks to its premium materials and robust construction, the 16mm twin core solar cable has an extended service life, typically ranging from 20 - 30 years. It can withstand the harsh environmental conditions often encountered in large - scale solar installations, including intense sunlight, heavy rain, strong winds, and temperature fluctuations. The cable's resistance to mechanical stress, such as being stepped on or accidentally bumped during installation or maintenance, further contributes to its long - term reliability, reducing the need for frequent replacements and associated maintenance costs.
3.3 Installation Adaptability
Although larger in size compared to smaller - gauge twin core solar cables, the 16mm variant still offers a reasonable level of flexibility. Its stranded conductor design and flexible insulation and sheath materials allow it to be routed through large - diameter conduits, around large building structures, and in expansive ground - mounted solar panel arrays. The twin - core design also simplifies the installation process compared to using two separate single - core cables, reducing the installation time and potential errors related to polarity connections, even in large and complex PV projects.
IV. Key Application Scenarios
4.1 Utility - Scale Solar Farms
In vast utility - scale solar farms, where thousands of solar panels are interconnected, the 16mm twin core solar cable is indispensable. It is used to connect individual solar panels within arrays and to transmit the generated power over long distances to central inverters and grid connection points. Its high - current - carrying capacity and long - distance transmission capabilities are crucial for the efficient operation and energy output of these large - scale solar farms, ensuring that the power generated can be effectively fed into the electrical grid.
4.2 Large Commercial and Industrial PV Installations
For large commercial buildings such as shopping malls, airports, and industrial factories with extensive rooftop or ground - mounted solar installations, the 16mm twin core solar cable can handle the high power requirements. These installations often have power outputs in the range of several hundred kilowatts to multiple megawatts. The cable efficiently transfers the electricity generated by the solar panels to the building's electrical infrastructure, offsetting a significant portion of the facility's electricity consumption and helping businesses achieve their sustainability and energy - cost - reduction goals.
4.3 High - Power Off - Grid Micro - Grid Systems
In off - grid locations where large - scale power generation and storage are required, such as remote industrial sites, military bases, or large - scale research stations in remote areas, the 16mm twin core solar cable is used to establish high - power micro - grid systems. It connects solar panels to large - capacity battery banks for energy storage and then distributes the power to various high - power electrical loads, providing a reliable and sustainable power source in areas without access to the main electrical grid.
In conclusion, the 16mm twin core solar cable plays a vital role in high - power PV applications. Its advanced design, high - performance capabilities, and suitability for large - scale installations make it an essential component for the development and operation of efficient and reliable solar energy systems.