Nayy-J Se 0.6/1 Kv aluminum Underground Cable for solar farms has precise and comprehensive settings in terms of specification parameters to ensure its stable and efficient operation in the underground power transmission environment of solar farms.

The rated voltage is 0.6/1 Kv, which perfectly adapts to the needs of low-voltage DC and AC power transmission in solar farms, and can build a stable power transmission channel between photovoltaic module strings, combiner boxes, inverters and booster stations.

The cable has three specifications: 4X95 mm², 4X150 mm² and 4X240 mm². The conductor is made of high-purity aluminum material with a purity of ≥99.6%, manufactured through multi-strand stranding process. The DC resistance of single-core conductors of different specifications at 20℃ varies. The DC resistance of the single-core conductor of 4X95 mm² cable is ≤0.193Ω/km, 4X150 mm² is ≤0.124Ω/km, and 4X240 mm² is ≤0.0779Ω/km, all lower than the industry standard, which can effectively reduce energy loss during power transmission and improve power transmission efficiency.

The insulation layer is made of weather-resistant XLPE (cross-linked polyethylene) material. After optimization with a special formula, its temperature resistance level reaches 90℃, and it can operate stably for a long time under the rated voltage of 0.6/1 Kv. In case of short circuit (within 5 seconds), it can withstand a high temperature of 250℃, ensuring insulation reliability under extreme working conditions. Its insulation resistance is ≥10¹⁴Ω·m, and the dielectric loss tangent is ≤0.002 (at 90℃). The excellent insulation performance can effectively isolate the risk of electric leakage and ensure the safety of power transmission in photovoltaic systems. At the same time, the insulation layer has passed the GB/T 18380.1-2008 flame retardancy test and has excellent flame-retardant performance.

The sheath and armoring design of the cable is optimized for the underground environment. The inner sheath is made of oil-resistant PVC material with a tensile strength of ≥12MPa and an elongation at break of ≥150%, which can resist moisture and chemical erosion in the soil. The outer armoring is a double Steel Tape lapped structure, and the armoring thickness increases with specifications. The armoring thickness of 95 mm² specification is 0.3mm, and that of 240 mm² specification is 0.5mm, which can withstand extrusion, dragging during underground construction and soil pressure, protecting the internal structure from mechanical damage. The overall structure also includes a semi-conductive shielding layer, which can evenly distribute the electric field and avoid insulation aging caused by partial discharge.

The current-carrying capacity performance is adapted to the characteristics of solar power generation. The 4X95 mm² cable has a current-carrying capacity of about 210A when laid in soil, 4X150 mm² is about 280A, and 4X240 mm² reaches 380A. The current-carrying capacity of different specifications meets the power transmission needs of solar farms of different scales. Its minimum bending radius is 10 times the cable outer diameter (static). The outer diameter of 4X95 mm² cable is about 55mm, and the static bending radius is 550mm; the outer diameter of 4X150 mm² cable is about 68mm, and the static bending radius is 680mm; the outer diameter of 4X240 mm² cable is about 85mm, and the static bending radius is 850mm, which is convenient for bending and laying in the narrow space under the photovoltaic panel.

Nayy-J Se 0.6/1 Kv aluminum underGround Cable for solar farms, with its unique performance advantages, has irreplaceable characteristic uses in multiple power transmission links of solar farms.

In small photovoltaic arrays, the 4X95 mm² specification cable plays an important role. It is mainly used for underground connection between photovoltaic module strings and combiner boxes, collecting the power generated by multiple photovoltaic modules into the combiner box. Since the power output of small photovoltaic arrays is relatively small, the current-carrying capacity of about 210A can meet its power transmission needs, and the outer diameter of this specification cable is small, making it more flexible and convenient to lay in the narrow space under the photovoltaic panel.

For medium-sized photovoltaic Power Stations, the 4X150 mm² specification cable is an ideal choice for DC confluence lines. After the combiner box collects the power of multiple photovoltaic module strings, it needs to be transmitted to the inverter through the cable. The current-carrying capacity of about 280A of the 4X150 mm² cable can meet the power transmission needs of medium-sized power stations, ensuring stable and efficient power transmission and reducing energy loss.

The high-voltage side grid-connected lines of large-scale photovoltaic power stations have high requirements on the current-carrying capacity of cables. The 4X240 mm² specification cable, with a current-carrying capacity of 380A, can be competent for this work. It transmits the alternating current converted by the inverter to the booster station, providing reliable transmission guarantee for the power grid connection of large-scale power stations.

In addition, the underground laying method of the cable enables it to adapt to the complex outdoor environment of solar farms. In areas where photovoltaic modules are relatively scattered, the cable can shuttle underground to connect various equipment, avoiding the impact of ground wiring on agricultural machinery operations and land use. At the same time, underground laying can also protect the cable from direct sunlight, wind and rain erosion, and man-made damage, extending the service life of the cable to match the operation cycle of more than 30 years of solar power stations.

In solar farms with some special terrains, such as hills and mountains, the good Flexibility and bending performance of the cable enable it to adapt to the undulating changes of the terrain, laying smoothly underground, ensuring the continuity and stability of power transmission.

The conductor is made of high-purity aluminum material with a purity of ≥99.6%. High-purity aluminum has good conductivity and can meet the needs of power transmission in solar farms. Compared with Copper Conductors, the weight of Aluminum Conductors is only 1/3 of that of Copper Conductors of the same specification, which greatly reduces the construction load during underground laying, lowers the construction difficulty, and is especially suitable for long-distance wiring in large-area photovoltaic arrays. At the same time, aluminum material has certain ductility and toughness. After being processed by multi-strand stranding technology, it can balance conductivity and flexibility, facilitating the bending and installation of the cable during laying.

The insulation layer is made of weather-resistant XLPE (cross-linked polyethylene) material. After special formula optimization and cross-linking treatment, this material has excellent electrical performance, mechanical performance and temperature resistance. Its temperature resistance level reaches 90℃, and it can withstand a high temperature of 250℃ in case of short circuit, which can adapt to the temperature changes during power transmission in solar farms. XLPE material has good chemical stability, is not easy to age, has high insulation resistance and low dielectric loss tangent, which can effectively isolate current and ensure the safety of power transmission. In addition, this material also has good flame-retardant performance, has passed relevant flame-retardant tests, and can inhibit flame spread and reduce smoke release in case of accidental fire.

The inner sheath is made of oil-resistant PVC material, which has good oil resistance, chemical corrosion resistance and waterproof performance. It can resist the erosion of moisture, oil and various chemical substances in the soil, protecting the insulation layer and conductor inside the cable from damage. The material has a tensile strength of ≥12MPa and an elongation at break of ≥150%, with certain mechanical strength and flexibility, which can adapt to the mechanical stress during underground laying.

The outer armoring is a double steel tape lapped structure. The steel tape has high mechanical strength and rigidity, which can withstand external forces such as extrusion, dragging during underground construction and soil pressure, providing solid protection for the internal structure of the cable and preventing mechanical damage. The armoring thickness increases with the cable specification, ensuring that cables of different specifications can obtain protection strength matching their transmission power and laying environment.

The semi-conductive shielding layer is made of semi-conductive material, whose resistivity is between that of conductor and insulator. This shielding layer can evenly distribute the electric field, avoid excessive local electric field strength inside the cable, prevent the insulation layer from aging due to partial discharge, and improve the operation safety and reliability of the cable.

The cable has a 4-core structure, which is round as a whole with a compact structure. The 4-core design can meet the needs of three-phase four-wire power transmission in solar farms, and is also convenient for distinguishing different phase lines and neutral lines.

The color design of the cable is relatively simple. The outer armoring is usually black or gray. This color can absorb heat, reduce the impact of sunlight on the cable, and at the same time, it is compatible with the underground soil environment, not easy to be found, reducing the possibility of man-made damage.

In terms of appearance, the surface of the cable is smooth and flat, with no obvious bulges, depressions or cracks. The steel tape of the armoring layer is lapped tightly and evenly, with no loosening or edge warping. The two ends of the cable are usually sealed to prevent moisture and impurities from entering the inside of the cable.

When the cable is packaged in coils, the coil diameter is large, which varies according to specifications. The coil diameter of 4X95 mm² cable is about 1.2 meters, 4X150 mm² is about 1.5 meters, and 4X240 mm² is about 1.8 meters. This coil diameter design is not only convenient for storage and transportation, but also easy to unfold during laying.

The production process of Nayy-J Se 0.6/1 Kv aluminum underground cable for solar farms is complex and rigorous. Every link from raw material processing to finished product inspection is subject to strict quality control to ensure that the performance and quality of the product meet relevant standards and usage requirements.

Conductor manufacturing is the first step of production. First, high-purity aluminum ingots are smelted to remove impurities, so that the purity of aluminum reaches ≥99.6%. The smelted aluminum liquid is made into aluminum rods through continuous casting and rolling process, and the diameter of the aluminum rods is determined according to the final conductor specification. Then, the aluminum rod is drawn into Aluminum Wires of different diameters through a wire drawing machine. During the wire drawing process, it is necessary to accurately control the wire drawing speed, die precision and cooling system to ensure that the diameter of the Aluminum Wire is uniform, the surface is smooth, and there are no scratches, burrs and other defects. Next, multiple aluminum wires are stranded according to a certain stranding pitch and direction to make a single-core conductor. The stranding process can improve the flexibility and mechanical strength of the conductor, and also reduce the skin effect and improve the conductivity.

Insulation layer extrusion is one of the key processes. The stranded single-core conductor is fed into the extruder, and at the same time, the weather-resistant XLPE material is added into the hopper of the extruder. The XLPE material is heated, melted and plasticized in the extruder, and then evenly wrapped around the outside of the conductor through an extrusion die to form an insulation layer. During the extrusion process, it is necessary to strictly control the extrusion temperature, extrusion speed and die pressure to ensure that the thickness of the insulation layer is uniform, closely combined with the conductor, and free of bubbles, material shortages, eccentricity and other defects. The extruded Insulated Core needs to undergo cross-linking treatment, usually by means of warm water cross-linking or steam cross-linking, so that the XLPE molecules form a three-dimensional network structure, thereby improving its mechanical properties, temperature resistance and electrical properties. The cross-linked insulated core should be cooled by a cooling system to set.

The application of the semi-conductive shielding layer is carried out after the insulation layer is processed. The semi-conductive material is applied to the surface of the insulation layer by extrusion or lapping to form a shielding layer. The extrusion method is to heat and melt the semi-conductive material and extrude it to the surface of the insulation layer through a die, which is closely combined with the insulation layer; the lapping method is to lap the semi-conductive tape on the surface of the insulation layer with a certain overlap rate. The thickness of the shielding layer should be uniform to ensure that it can effectively and evenly distribute the electric field.

The inner sheath extrusion is carried out after the shielding layer is applied. The core with the shielding layer is fed into the inner sheath extruder, and the oil-resistant PVC material is heated and melted, then evenly wrapped around the outside of the shielding layer through an extrusion die to form the inner sheath. During the extrusion process, various parameters should be controlled to ensure that the thickness of the inner sheath is uniform, the surface is smooth, closely combined with the shielding layer, and free of bubbles, cracks and other defects.

The 4-core cabling process is to strand 4 Cores with inner sheaths according to a certain stranding method and pitch to form a cable core. During the cabling process, it is necessary to ensure that the 4 Cores are evenly positioned and tightly stranded, and at the same time, some inert materials, such as polypropylene rope, are filled in the middle of the cable core to ensure the roundness and stability of the cable core.

The outer armoring lapping is the last major process. The double steel tape is lapped around the cabled core at a certain lapping angle and tension through an armoring machine to form the outer armoring. During the lapping process, it is necessary to ensure that the steel tape is lapped tightly and flatly, without loosening, edge warping, breaking and other phenomena. The thickness of the armoring should meet the design requirements to ensure that it can provide sufficient mechanical protection.

During the production process, multiple quality inspections are required. The diameter, DC resistance, tensile strength of the conductor are tested; the thickness, insulation resistance, voltage resistance performance, flame retardant performance of the insulation layer are tested; the resistance of the shielding layer, the bonding force with the insulation layer are inspected; the thickness, tensile strength, elongation at break, chemical corrosion resistance of the inner sheath are tested; the thickness and lapping quality of the armoring are checked. The finished cable also needs to undergo overall electrical performance tests, mechanical performance tests and environmental performance tests to ensure that all indicators meet relevant standards and design requirements.

The production environment also has an important impact on product quality. The workshop needs to be kept clean and dry, and the temperature and humidity should be controlled within appropriate ranges to avoid dust, impurities and other factors affecting product performance. Production equipment should be regularly maintained and calibrated to ensure its operating accuracy and stability, and improve production efficiency and the consistency of product quality.

The packaging design of Nayy-J Se 0.6/1 Kv aluminum underground cable for solar farms fully considers the product protection, transportation and storage needs to ensure that the cable is not damaged during the entire circulation process.

The cable is packaged in coils. The length of each coil varies according to specifications, usually 50 meters, 100 meters or 200 meters. Packaging materials mainly include wooden cable reels and plastic films. The wooden cable reel is made of high-quality hardwood, which has been dried and anti-corrosive treated, with high strength and stability, and can bear the weight of the cable and the pressure during transportation and storage. Both sides of the cable reel are provided with metal flanges, and the flanges are evenly distributed with a number of holes, which is convenient for handling and loading/unloading with forklifts, cranes and other equipment.

The cable is neatly wound on the wooden cable reel, and appropriate tension is maintained during winding to avoid loosening of the cable or damage caused by mutual friction. The outer layer of the cable is wrapped with a thick layer of plastic film, which has good moisture-proof, dust-proof and anti-corrosion performance, and can effectively isolate the erosion of the cable by external moisture, dust, oil and chemical substances. The plastic film should be closely attached to the surface of the cable and stretched during winding to ensure that there is no gap between it and the cable, forming a sealed protective barrier.

A clear label is fixed on the side or flange of the cable reel. The label details the cable's model, specification, length, rated voltage, manufacturer, production date, production batch number, certification mark and other information. The label is made of waterproof and wear-resistant materials to ensure that the information is clear and legible during transportation and storage, which is convenient for users to identify, count and trace the product.

For exported products or products transported over long distances, the outer part of the wooden cable reel will be reinforced with iron sheets or wooden boxes to enhance the impact resistance and pressure resistance of the packaging and prevent the cable reel from being damaged due to collision and extrusion during transportation. At the same time, the packaging will be printed with internationally accepted warning signs, such as "Do not invert", "Moisture-proof", "Handle with care", "Stacking limit", etc., to remind transport and handling personnel to pay attention to operating specifications.

The transportation of Nayy-J Se 0.6/1 Kv aluminum underground cable for solar farms needs to select appropriate transportation methods according to factors such as transportation distance, quantity, destination and traffic conditions, and take corresponding protective measures to ensure that the cable is delivered to the destination safely and timely.

Road transportation is a commonly used transportation method, suitable for medium and short-distance transportation. The transport vehicles are usually large trucks or semi-trailers, and the compartments of the vehicles should be flat, clean and free of sharp objects. Before loading, check the integrity of the cable reels and the packaging of the cables to ensure no damage. When loading, use forklifts or cranes to hoist the cable reels stably into the carriage. A certain gap should be left between the cable reels to avoid mutual collision. For multiple cable reels, arrange them neatly and use steel wire ropes, strapping belts, etc. to firmly fix them on the carriage to prevent movement or toppling due to vehicle bumps, sudden braking, etc. during transportation. During transportation, drivers must strictly abide by traffic rules, control the speed, avoid sudden acceleration, sudden braking and sharp turns, and reduce the impact force on the cables. At the same time, attention should be paid to avoiding severe weather such as rainstorms, high temperatures, extreme cold, and strong winds to prevent the cables from being affected by extreme environments.

Railway transportation is suitable for long-distance and large-volume cable transportation, with the advantages of large transportation capacity, good stability, and relatively low cost. During railway transportation, load the cable reels into the designated positions of railway freight cars and fix them firmly with special fixing devices to ensure that they will not move during transportation. For valuable or vulnerable cables, boxcars can be used for transportation to prevent erosion by natural factors such as wind, sun, and rain. The railway department will track and monitor the goods throughout the process to ensure transportation safety.

Waterway transportation is mainly used for exported products or long-distance cross-water transportation. The cable reels are loaded into the cargo holds or decks of cargo ships through the hoisting equipment at the wharf. The cable reels loaded in the cargo holds should be stacked reasonably to avoid stacking too high to prevent the bottom cable reels from being crushed and damaged. The cable reels loaded on the deck need to be more firmly fixed and covered with waterproof cloth to prevent seawater erosion and rain soaking. During transportation, pay attention to weather changes and ship navigation conditions, and take timely countermeasures to ensure the safety of the cables.

No matter which transportation method is adopted, appropriate loading and unloading equipment such as forklifts and cranes must be used during loading and unloading. Manual rough loading and unloading is strictly prohibited to avoid damage to the cable reels or scratches and damage to the cable sheaths. Handle with care during loading and unloading, keep the cable reels stable, and avoid severe impact. Transport personnel should be familiar with the characteristics and transportation requirements of the cables, and strictly operate in accordance with the operating procedures to ensure the safety of the cables during transportation.

The company has established a sound delivery process to ensure that Nayy-J Se 0.6/1 Kv Aluminum Underground Cables for solar farms can be sent to customers in a timely and accurate manner.

After the customer places an order, the sales department will enter the order information into the system immediately and transmit it to the warehouse department. The order information includes the customer's name, contact information, delivery address, cable model, specification, quantity, delivery date, transportation method, etc. After receiving the order, the warehouse manager first reviews the order information to confirm the accuracy and completeness of the information. If any information is found to be incorrect or incomplete, they will communicate and coordinate with the sales department in a timely manner, and proceed with subsequent operations only after confirmation.

After passing the review, the warehouse manager will prepare the goods according to the order requirements. During the goods preparation process, in accordance with the principle of first-in, first-out, the corresponding models, specifications, and quantities of cables are retrieved from the warehouse. At the same time, carefully check the packaging, labels, appearance, etc. of the cables to ensure that the quality of the cables is intact and the information is consistent with the order.

After the goods preparation is completed, the warehouse manager will conduct outgoing inspection on the goods. The inspection contents include whether the cable model and specification match the order, whether the packaging is intact, whether the labels are clear, whether the quantity is accurate, etc. Only after passing the inspection can the outgoing procedures be handled, and the outgoing order be filled out. The outgoing order details the relevant information of the cables and the customer information.

For goods that need to be transported, the warehouse department will contact the cooperative logistics company, select the appropriate transportation method and vehicle type according to factors such as the quantity, weight, volume, and transportation distance of the goods, and confirm the transportation time, cost, and delivery location with the logistics company. The logistics company will arrange vehicles to pick up the goods from the warehouse. The warehouse manager and the driver will jointly check the quantity, model, and specification of the goods, and load them after confirmation. During the loading process, the cable reels are fixed in accordance with the standard requirements to ensure safety during transportation.

After the loading is completed, the warehouse manager and the driver will go through the goods handover procedures, and the driver will sign and confirm on the outgoing order. The warehouse department will promptly feed back the logistics information (such as logistics company name, waybill number, estimated arrival time, etc.) to the sales department, and the sales department will then inform the customer of the logistics information to facilitate the customer to track the transportation status of the goods.

The company will record the delivery process, including delivery time, quantity of goods, logistics information, etc., for subsequent query and traceability. At the same time, regularly evaluate and optimize the delivery process to improve delivery efficiency and accuracy.

In order to enable customers to better understand the performance and quality of Nayy-J Se 0.6/1 Kv aluminum Underground Cables for solar farms, the company provides sample services.

Customers can apply for samples through the company's official website, phone calls, emails, etc. When applying, customers need to provide detailed contact information, company name, model and specification of the required samples, etc. After receiving the application, the company's sales staff will contact the customer within 24 hours to confirm the relevant information of the sample and the delivery address.

The length of the sample is usually 1-5 meters, and the specific length can be adjusted according to the customer's needs. The quality of the sample is consistent with that of the mass-produced products, which can truly reflect the performance, appearance, and craftsmanship of the product. Before sending the sample, the company will conduct strict inspections on the sample, including appearance inspection and electrical performance testing, to ensure that the sample meets relevant standards and requirements.

The samples are packaged in small cable reels or cardboard tubes, wrapped with plastic film to prevent moisture and dust. The packaging is printed with the sample's model, specification, manufacturer, and other information, and is accompanied by product manuals and relevant certification materials to facilitate customers to understand the details of the product.

Samples are usually sent by express delivery. The company will choose a reputable and high-quality express company to ensure that the samples can be delivered to customers quickly and safely. The express fee for samples is generally borne by the customer, but for some potential large customers or customers with long-term cooperation intentions, the company can negotiate to bear part or all of the express fee.

After receiving the sample, if the customer has any questions about the sample or needs further technical support, the company's sales staff and technical personnel will promptly provide professional answers and services. Through sample testing, customers can intuitively understand the performance and quality of the cable, providing a reference for subsequent procurement decisions. The company will conduct follow-up visits to customers who have obtained samples to understand their evaluation of the samples and their procurement intentions, and provide better services according to the feedback.

The company attaches great importance to the after-sales service of Nayy-J Se 0.6/1 Kv aluminum underground cables for solar farms and has established a professional after-sales service team to provide customers with comprehensive and efficient after-sales support, ensuring that customers can use the products with confidence.

The after-sales service team is composed of experienced technicians and customer service personnel who have received professional training and are proficient in the performance, installation, use, and maintenance of the cable. They can quickly respond to customer needs and provide professional solutions.

If customers encounter technical problems during the installation of the cable, they can contact the after-sales service team for help. The after-sales personnel can provide technical guidance through telephone, video call, email, etc. They will explain the installation steps and precautions in detail according to the customer's specific situation and answer the customer's questions. For some complex installation scenarios, such as large-scale solar farm wiring projects, the company can arrange technicians to conduct on-site guidance according to the customer's needs, helping the customer to install the cable correctly and ensuring the smooth progress of the project.

If the customer finds quality problems with the cable during use, such as insulation layer damage, conductor breakage, abnormal heating, etc., they can apply for after-sales service to the company. When applying, the customer needs to provide relevant materials such as purchase invoices, cable model and specification, use time, problem description, and problem photos. After receiving the application, the after-sales service team will register the customer's complaint and contact the customer within 24 hours to understand the specific situation in detail.

The after-sales service team will analyze and judge the problems reported by the customer. If it is confirmed that the problem is caused by the product itself, such as manufacturing defects, material problems, etc., the company will handle it according to the customer's requirements, such as return, replacement, or repair. For cables that need to be returned or replaced, the company will bear the transportation costs and arrange for new cables to be delivered to the customer as soon as possible to minimize the impact on the customer's use.

If the problem is caused by improper use or installation by the customer, the after-sales service team will patiently explain the reasons to the customer and provide corresponding solutions, such as maintenance suggestions and technical guidance. If the customer needs, the company can also arrange technicians to provide on-site maintenance services, but the customer needs to bear the relevant service fees.

The company regularly conducts return visits to customers who have purchased the cable. The return visit methods include telephone calls, emails, on-site visits, etc. The purpose of the return visit is to understand the use of the cable, collect customers' opinions and suggestions on products and services, and timely feed them back to the relevant departments of the company. The company will continuously improve product quality and service levels according to customer feedback.

In addition, the company provides customers with detailed product manuals and maintenance guides, which introduce the performance parameters, installation methods, use precautions, maintenance measures, etc. of the cable in detail. Customers can refer to these materials to use and maintain the cable correctly, extending the service life of the cable.

The company's after-sales service commitment is to put customers' needs first, solve customers' problems in a timely and effective manner, and ensure customer satisfaction. The after-sales service team will always maintain a positive attitude and professional spirit to provide customers with high-quality after-sales service.