The solar cable is mainly used to connect the solar panels to various components of the photovoltaic system. The solar cable can use copper, aluminum, and tinned copper as conductors, among which tinned copper is the most widely used.
Benefits of Solar Cable
Efficient Energy Transfer
High-quality solar cables ensure minimal energy loss during transmission from panels to inverters and beyond.
Safety
Properly rated solar cables prevent electrical faults, short circuits, and fire hazards. Using the right cables ensures that the system operates safely under all conditions, protecting both the equipment and the users.
System Longevity
Durable and weather-resistant cables contribute significantly to the long-term reliability and performance of the solar installation. Investing in high-quality cables reduces the need for frequent replacements and maintenance, which can be costly and time-consuming.
Regulatory Compliance
Solar installations must meet various local and international standards for electrical safety and performance. Using certified solar cables helps ensure compliance with these regulations, avoiding legal issues and potential fines.
Sustainability
Solar cables play a crucial role in promoting the use of renewable energy by contributing to the efficient and reliable operation of solar power systems. This helps reduce dependence on fossil fuels and lowers carbon emissions, contributing to a more sustainable future.
Product Categories
Latest Products
Why Choose Us
Quality assurance
Our goal is to be the best and to keep raising the bar. We believe these ideals can be achieved through focused teamwork, taking pride in our work, quality-controlled systems, and by attracting and training the best people. The result of our efforts must be a satisfied client.
Customization services
We understand that each customer's requirements are unique, and thus, we provide customization services. We are very glad to closely collaborate with customers, understand their specific needs, and provide tailored solutions accordingly.
World-wide expertise
We know international markets and trends. Our expertise, experience and network cover all corners of the world.
Efficient and convenient
The company has established marketing networks around the world to provide high-quality services to customers in an efficient and convenient manner.
Competitive pricing
We strive to maintain competitive pricing, offering customers audio and video accessories that deliver high value for their investment.
Technical expertise and support
Our team possesses extensive technical expertise to provide comprehensive support and solutions to customers. Regardless of the technical challenges or inquiries customers face, we are willing to listen and offer professional advice and guidance.
DC Solar Cable
Function: Connects individual solar panels in series or parallel to form strings. These cables carry the direct current (DC) generated by the panels.
Characteristics: Typically smaller in diameter compared to other types of solar cables. They are designed for lower voltage ratings and are crucial for efficient power collection from individual panels.
Solar DC Main Cable
Function: Connects the output from multiple strings (combined in a combiner box) to the inverter. These cables also carry direct current (DC) but at a higher voltage due to the combined output of multiple strings.
Characteristics: Larger in diameter compared to DC solar cables due to higher current carrying capacity. They are rated for the system' s operating voltage.
AC Connection Cable
Function: Connects the inverter' s output (which is alternating current (AC) power) to the building' s electrical grid or other AC distribution points.
Characteristics: These cables are similar to standard building electrical cables, but they may be specifically designed for outdoor use and weather resistance. They are rated for the AC voltage of the system.
Major Difference Between Solar Cable And Normal Cable
The insulation sheathing of electric cable is also called a jacket. The normal electrical cables would ideally be installed concealed inside walls or in a closed space. This reduces the possibility of normal cables directly coming into contact with extreme weather conditions. It is not the case with solar cables. The solar cable would be installed in open spaces. Therefore, those would be subjected to adverse weather scenarios including wind, rain, and sun. The sheathing has to be strong and weather-proof to sustain the loads due to these conditions. A special material designed for solar cables is used for manufacturing the jackets or sheathing of the cables.
Solar cables have more longevity than normal electric cables. The prime reason being the sturdy and reliable cable jackets. The solar cable may last up to around 25 years without much reduction in performance. On the other hand, a normal electric cable may require replacement in a period of nearly 10 years. Else, the electric supply would be hampered or diminished.
Solar cables and regular wires are different in the case of electrical conductors also. Normally a single conducting material would be used in solar cable. Whereas, the regular electric cable will have multiple conductors installed together, for carrying electricity.
Wire gauge indicates the dimension of the cable’s circumference or thickness. It may be noted that the higher the wire gauge the thinner the cable. A normal electric cable is available in different thicknesses of wire gauges. Solar cable doesn’t come in such a large variety. The most common wire gauge in the case of solar wire is 10.
Applications of Solar Cables
Residential
Solar cables connect solar panels to inverters and electrical systems in homes, allowing for solar energy generation. This energy can power household appliances, lighting systems, and other electrical devices, reducing the need for grid-based electricity and saving costs for homeowners.
Commercial
These cables support solar power systems, whether installed on rooftops or in open spaces. They transmit solar-generated electricity to power lighting, HVAC systems, office equipment, and other electrical loads. They help businesses lower energy expenses and reduce their carbon footprint.
Transportation
Solar cables are also essential for transferring solar-generated power to electric vehicles (EVs), boats, and recreational vehicles (RVs) equipped with solar panels. Solar cables transfer solar energy to batteries or onboard systems, extending the range and sustainability of vehicles. Solar-powered transportation solutions reduce greenhouse gas emissions and promote eco-friendly travel options.
Construction
In buildings and rooftops, Solar cables integrate solar panels with electrical systems to offset energy consumption, promote energy efficiency goals, and contribute towards green building certifications LEED (Leadership in Energy and Environmental Design).
Agriculture
In farming operations, Solar cables power irrigation systems and machinery. Solar-powered irrigation systems use solar energy to pump water from wells or reservoirs to irrigate crops. This provides a sustainable and cost-effective solution for farmers, especially in remote or off-grid locations.
Space
For space applications, solar cables connect solar panels to supply power for satellites, spacecraft, and space exploration missions. They generate, store, and distribute electrical power in space. Hence, they are indispensable components of space technology.
Solar cable is made of tinned copper, solar cable 4.0mm, 6.0mm, 16.0mm, solar cable crosslinking polyolefin compound and zero halogen polyolefin compound. All of this should be envisaged to produce naturally friendly so-called green energy cables. When produced, they should have the following characteristics: weather resistance, mineral oil and acid and alkali resistance. Its conductor, the highest temperature should be 120 ℃ ͦ, 20, 000 hours operation, the minimum temperature should be - 40 ͦ ℃. In terms of electrical characteristics, the following conditions should be met: rated voltage 1.5 (1.8)KV DC / 0.6/1.0 (1.2)KV AC, high 6.5 KV DC for 5 minutes.
The solar cable should also be resistant to impact, wear and tear, and its minimum bending radius should not be more than 4 times of the total diameter. It features its safety pull -50 n/sq mm. The insulation of cables must withstand thermal and mechanical loads, so crosslinked plastics are increasingly used today, they can not only withstand harsh weather conditions and are suitable for outdoor use, but they are also resistant to salt water, and thanks to halogen-free flame retardant crosslinked sheathing materials, they can be used indoors in dry conditions.
Solar energy and its main source solar cable are very safe, durable, resistant to environmental impacts and very reliable. What's more, they do not harm the environment, nor do they have to worry about power outages or other problems, which most people face during the power supply. In any case, the house or office will have a guaranteed current, they will not be interrupted in the work, no time wasted, not too much money spent, no dangerous smoke emissions in their work cause so much damage to heat and nature.
Components of Solar Cables
Conductor
The innermost layer comprises conductive materials such as copper or aluminum, which carry electricity from the solar panels to the inverter.
Insulation
Surrounding the conductor is the insulation layer, usually made of cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR). This insulation protects the cable from environmental factors and prevents electrical leakage.
Sheath/ outer jacket
The outermost layer, known as the sheath, provides additional protection against abrasion, sunlight, and moisture. Materials like polyvinyl chloride (PVC) or halogen-free flame retardant (HFFR) compounds are commonly used for this purpose.
Understanding Cable Sizing Parameters
The size of a solar cable is primarily determined by its cross-sectional area, commonly measured in square millimeters (mm²) or American Wire Gauge (AWG). Factors such as the system's voltage, current, cable length, and ambient temperature must be considered when sizing solar cables. Understanding these parameters is crucial for selecting cables that can handle the electrical load without excessive voltage drop or overheating.
Calculating Voltage Drop
Voltage drop is a critical consideration when sizing solar cables, as excessive voltage drop can lead to reduced system efficiency and performance. To calculate voltage drop, factors such as cable length, current carrying capacity, and the material's resistivity are taken into account. By determining the acceptable voltage drop limit for the system and performing calculations, stakeholders can select the appropriate cable size to minimize voltage drop and optimize energy transmission.
Considering Current Carrying Capacity
The current carrying capacity of a solar cable refers to the maximum amount of current it can safely conduct without exceeding its temperature rating or causing overheating. It is crucial to select a cable size that can accommodate the expected current flow without exceeding its rated capacity. Failure to do so may result in overheating, insulation damage, and potential safety hazards. Manufacturers provide current carrying capacity ratings for different cable sizes, enabling stakeholders to choose cables that meet their system's current requirements.
Evaluating Cable Length and Resistance
The length of the cable run and its resistance also influence the selection of the appropriate cable size. Longer cable runs result in higher resistance, which can contribute to increased voltage drop and power loss. By minimizing cable length and selecting cables with lower resistance, stakeholders can mitigate voltage drop issues and optimize energy transmission efficiency.
Considering Environmental Factors
Environmental conditions, such as temperature variations and exposure to sunlight, can affect cable performance and longevity. It is essential to choose solar cables with insulation materials that are resistant to UV radiation, moisture, and temperature extremes. Additionally, cables installed in outdoor environments should be rated for outdoor use and capable of withstanding harsh weather conditions to ensure long-term reliability.
Maintenance and Care of Solar Cables
Regular Inspection
Regularly check solar cables for any signs of wear, damage, or deterioration. This helps detect issues early, enabling timely repairs or replacements and preventing potential system failures.
Secure Fastening
Solar cables should be securely fastened to mounting brackets or panel frames to prevent damage by environmental factors such as wind, rain, or debris. Loose or improperly secured cables can be susceptible to damage or disconnection.
Cleaning
Dirt, dust, and debris can accumulate on the cables' surfaces, potentially leading to overheating or electrical issues. Cleaning the cables regularly with mild soap and water helps remove these contaminants.
Following Manufacturer's Guidelines
Manufacturers often provide instructions for cleaning, inspecting, and maintaining their products. Following these guidelines helps extend the lifespan of the cables and ensures they function safely and efficiently over time.
Our Factory
Shaanxi Woquan Trading Co., Ltd. was established in 2016, specializing in the manufacture of cables and wires. The company built and expanded 80 acres (53,333 square meters) of factory buildings and new production line equipment. The company has more than 20 professional and technical personnel.
Our company is a professional wire and cable manufacture integrating research and development, production, sales, and services together. We specialize in developing and manufacturing PVC and XLPE insulation cables, building wires, power cables, armored cables, solar cable, silicone cables, rubber cables, specialty cables. At the same time, customized services of various special cables for customers in appreciated. Our products have certificated by CE, UL, SAA, ISO, TUV, CCC, and other certificates.
Certifications
FAQ
As one of the leading solar cable manufacturers and suppliers in China, we warmly welcome you to wholesale cheap solar cable for sale here from our factory. All customized products are with high quality and low price. Contact us for quotation and free sample.
Connector, DC Tinned Copper Solar Cable, TUV DC PV Solar Power Cable