I. From the Perspective of the Product Itself
(I) Specification Parameters
The 3X25+1X16mm² XLPE under
Ground Cable has clear and precise settings in terms of specification parameters, which can accurately adapt to different underground power distribution scenarios.
The core specification of this cable is 3 main cores of 25mm² plus 1 auxiliary core of 16mm². This structural design is to meet the needs of three-phase power transmission and safe grounding. The 25mm² main core has a safe current-carrying capacity that has been accurately calculated. Under the 0.6/1kv voltage level, it can stably carry the corresponding current, which is sufficient to meet the power transmission needs of small and medium-sized power consumption scenarios. The 16mm² auxiliary core serves as a
Ground Wire, and its cross-sectional size matches the main core. It can quickly conduct current into the ground in case of electric leakage, ensuring electricity safety.
The thickness of the cable's insulation layer is also scientifically designed. The XLPE insulation layer evenly wraps around each core, and its thickness can ensure effective insulation under 0.6/1kv voltage, preventing electric leakage between cores and between cores and the external environment. The overall outer diameter of the cable is also reasonably planned. It not only ensures the structural stability of the cable during underground laying and can withstand a certain amount of soil pressure but also does not increase the laying difficulty due to an excessively large outer diameter, adapting to most spatial conditions for underground laying.
In addition, the electrical parameters of the cable, such as conductor DC resistance and insulation resistance, also strictly comply with relevant standards. The low conductor DC resistance can reduce losses during power transmission; the high insulation resistance ensures the reliability of insulation performance, providing a strong guarantee for the safe and stable operation of the cable.
(II) Characteristic Uses
With its unique
Structure and Performance, this cable has irreplaceable characteristic uses in multiple underground power distribution scenarios.
In the underground power distribution system of residential communities, it is an ideal choice for power distribution trunk lines. There are many residential electrical equipment in residential communities, such as household appliances, elevators, and water pumps. The power supply of these equipment depends on underground power distribution trunk lines. The 3X25+1X16mm² cable can stably transmit power from the community's main distribution room to the distribution rooms of each building. The current-carrying capacity of the 25mm² main core is sufficient to meet the power demand of multiple residential buildings. The 16mm² ground wire provides safety protection for the entire power distribution system. In case of electric leakage, it can quickly conduct the current away to avoid safety accidents.
This cable is also often used for equipment power supply in small industrial parks. There are various production equipment in small industrial parks, such as small machine tools and packaging machinery. The power of these equipment is relatively moderate, and the current-carrying capacity of the 25mm² main core can meet their power demand. Moreover, the underground environment of industrial parks may have certain dust and slight chemical substances. The XLPE insulation layer of the cable can resist the erosion of these environmental factors, ensuring continuous power supply to the equipment and reducing production interruptions caused by cable failures.
This cable also plays an important role in underground power distribution of municipal public facilities. For example, in the street lamp power supply lines under urban roads, street lamps are relatively scattered and need to transmit power through
Underground Cables. The compact structure of this cable makes it easy to lay in the narrow space under the road, and its stable performance can ensure the normal lighting of street lamps. In addition, some underground power distribution lines in small public parking lots can also use this cable to provide power support for parking lot lighting, charging piles and other equipment.
In addition, this cable can also be used in underground power distribution of agricultural irrigation facilities. The water pumps and other equipment used for agricultural irrigation need stable power supply. This cable can work normally in the humid underground environment of farmland, ensuring the reliable operation of irrigation equipment.
(III) Material and Style
The material selection and style design of the cable are fully combined with the environmental characteristics and use needs of underground laying, making it have excellent performance.
In terms of materials, the conductor is made of high-purity electrolytic copper. High-purity copper has excellent electrical conductivity, which can reduce energy loss during power transmission and improve power transmission efficiency. At the same time, copper has good chemical stability and is not easy to be corroded in the relatively humid underground environment, so it can maintain good electrical conductivity for a long time and extend the service life of the cable. Moreover, copper has good ductility and toughness, so that the conductor is not easy to break during processing and laying, ensuring the structural integrity of the cable.
The insulation layer is made of XLPE (cross-linked polyethylene) material, which is a major material advantage of this cable. XLPE has excellent temperature resistance and can maintain stable insulation performance within a wide temperature range. Even in the case of large temperature changes in the underground environment, there will be no problems such as insulation aging and cracking. It has high insulation resistance and low dielectric loss, and the insulation effect is reliable under 0.6/1kv voltage, which can effectively prevent electric leakage. In addition, XLPE material also has good chemical corrosion resistance and water resistance, which can resist the erosion of acid-base substances and moisture in underground soil, ensuring the long-term stability of the cable's insulation performance.
In terms of style, the cable adopts a
Multi-Core cabling design. The 3 main cores and 1 ground wire are combined in a certain stranding way to form a circular cable as a whole. This style has a compact structure, which is convenient for storage and laying, especially in narrow underground spaces, and can flexibly pass through laying paths such as pipelines. The outer sheath of the cable usually uses wear-resistant and corrosion-resistant materials to further protect the internal structure of the cable, enabling it to better adapt to the complex underground environment. Moreover, the circular appearance design makes the soil pressure on the cable underground evenly distributed, reducing the risk of damage caused by excessive local stress.
(IV) Production Process
The production process of this cable is exquisite and rigorous, and every link is strictly controlled to ensure that the product quality meets relevant standards and use requirements.
The production process of the conductor is particularly critical. First, high-purity electrolytic copper is selected as the raw material, and the copper raw material is made into copper rods through continuous casting process. The quality of copper rods directly affects the performance of subsequent conductors. Then, the copper rod is drawn into
Copper Wires of the required diameter through multiple wire drawing processes. During the wire drawing process, the wire drawing speed and die precision are strictly controlled to ensure that the diameter of the copper wire is uniform. After that, multiple copper wires are stranded in a specified way to form a conductor. Stranding can enhance the
Flexibility and mechanical strength of the conductor. The
Stranded Conductor also needs to be annealed. By controlling the annealing temperature and time, the mechanical properties of the conductor are improved, making it softer and convenient for subsequent insulation layer coating.
The XLPE insulation layer is coated by extrusion molding process. First, the XLPE raw material is pretreated to remove moisture and impurities to ensure the quality of the insulation layer. Then, the treated XLPE raw material is added to the extruder, heated to a molten state in the extruder, and the molten XLPE is evenly coated on the surface of the conductor through a die to form an insulation layer. During the extrusion process, the extrusion temperature, pressure and speed are accurately controlled to ensure that the insulation layer has uniform thickness, smooth surface, no bubbles and no impurities. After extrusion, the
Insulated Wire core is cross-linked. Through the action of high temperature and high pressure, XLPE molecules form a three-dimensional network structure, thus significantly improving the temperature resistance, mechanical strength and insulation performance of the insulation layer.
The cabling process is to strand 3 insulated main cores and 1 insulated ground wire according to the design requirements. Proper tension is maintained during stranding to ensure that the cabled cable has a compact and round structure and the positions between cores are stable. During the cabling process, appropriate filling materials are also filled in the gaps of the cable core to make the cable shape more round and play a buffering and protective role. After cabling, a layer of wrapping tape is wrapped around the cable core to enhance the structural stability of the cable.
Finally, the outer sheath is extruded. A suitable sheath material is selected and evenly coated on the cabled cable core through an extruder to form the outer sheath. The outer sheath can further protect the internal structure of the cable and resist erosion from the external environment. The finished cable after production also needs to undergo a series of strict tests, including electrical performance tests (such as insulation resistance and voltage resistance), mechanical performance tests (such as tensile strength and elongation at break) and appearance tests. Only cables that pass all test items can leave the factory.
(V) Product Performance Advantages
In addition to the above aspects, this cable also has many outstanding product performance advantages, making it perform well in underground power distribution scenarios.
It has strong resistance to mechanical damage. Due to the use of high-quality materials and exquisite production processes, the cable has certain compression, tensile and bending properties. During underground laying, it can withstand a certain amount of external impact and tensile force, and is not easy to have structural damage under the action of soil pressure, ensuring the normal use of the cable.
Aging resistance is also one of its major advantages. XLPE insulation layer and outer sheath materials have good aging resistance, which can resist the impact of oxygen, ultraviolet rays, temperature changes and other factors in the underground environment and delay the aging rate. This makes the service life of the cable longer, reduces the replacement frequency and lowers the maintenance cost.
In terms of waterproof and moisture-proof performance, this cable performs excellently. The XLPE insulation layer itself has good waterproof performance. Coupled with the tight wrapping of the outer sheath, it can effectively prevent moisture from entering the cable. Even in the environment with high underground water level or humid soil, it can maintain the stability of insulation performance and avoid cable failures caused by water ingress.
In addition, this cable has high transmission efficiency. Because the conductor is made of high-purity copper, the resistance is small, the loss of power during transmission is small, and the utilization efficiency of power can be improved. Moreover, its structural design is reasonable, and the interference between cores is small, ensuring the stability of power transmission.
II. From the Perspective of General Product Information
(I) Packaging
In order to ensure that the cable is not damaged during transportation and storage, the packaging design fully considers the characteristics of the product and the needs of transportation and storage, which is scientific and practical.
The cable is packaged in a reel type, and the cable is neatly wound on a solid wooden or metal reel. The diameter of the reel is determined according to the length and specification of the cable to ensure that the cable is wound tightly without loosening or twisting. Baffles are installed on both sides of the reel, and the height of the baffles is higher than the winding height of the cable, which can effectively block the collision and extrusion of other objects on the cable during transportation and storage, and protect the appearance and structure of the cable from damage.
A layer of moisture-proof paper and soft buffer material, such as pearl cotton, is laid between the cable and the reel. The moisture-proof paper can prevent moisture in the air from invading the cable and avoid the cable being affected by moisture; the buffer material can reduce the vibration and friction of the cable during transportation and protect the outer sheath on the cable surface from wear. For long-distance transportation or storage in a relatively humid environment, a layer of waterproof plastic film is wrapped around the outer layer of the cable to further enhance the moisture-proof effect and ensure the quality stability of the cable during transportation and storage.
The packaging clearly marks the detailed information of the product, including product name, specification (3X25+1X16mm²), voltage level (0.6/1kv), length, production batch number, production date, manufacturer name and contact information, etc. At the same time, warning signs such as "Moisture-proof", "Handle with care" and "Do not press heavily" are also marked to remind transportation, storage and loading and unloading personnel to pay attention to relevant matters and avoid damage to the cable due to improper operation.
(II) Transportation
The transportation link strictly follows relevant regulations and operating procedures to ensure that the cable can be delivered to the destination safely and timely.
In terms of domestic transportation, appropriate transportation methods are selected according to the quantity of cables and transportation distance. For a small amount of short-distance transportation, road transportation is usually adopted. The transport vehicles are trucks with rainproof and sunproof facilities, and are equipped with special fixing devices. When loading the cable, the reel is firmly fixed in the carriage to prevent rolling and collision during transportation. During transportation, try to avoid violent bumps and long-term exposure to the sun and rain. The driver should regularly check the fixing of the cable to ensure transportation safety.
For a large amount of long-distance transportation, railway transportation is a more appropriate choice. Railway transportation has high stability and large transportation capacity, which can effectively reduce the risk of cable damage during transportation. When loading cables for railway transportation, the loading position is reasonably arranged in accordance with the regulations of the railway department to ensure that the cable reels are placed neatly and stably to avoid mutual extrusion.
If it involves export transportation, sea transportation is generally adopted. Sea transportation is suitable for long-distance transportation of large quantities of goods with relatively low cost. During sea transportation, the cable should be packaged and protected more strictly. In addition to the conventional reel and moisture-proof packaging, solid pallets are added to prevent severe impact during loading, unloading and transportation. At the same time, various procedures and documents required for export should be completed in advance to ensure that the goods can pass customs smoothly.
During the entire transportation process, the cable is tracked throughout, and the position and status of the goods are mastered in real time through the logistics information system. In case of special weather, traffic jams and other special situations, communicate and coordinate with the transportation department in time to adjust the transportation route and time to ensure that the cable can be delivered on time.
(III) Delivery
The delivery process is efficient and orderly, aiming to provide customers with convenient and timely delivery services so that customers can receive the required cables as soon as possible.
After the customer places an order, the sales department will review the order in a short time to confirm whether the product specification, quantity, delivery address, contact information and other information are accurate. After passing the review, the order information is quickly transmitted to the warehouse.
After receiving the order, the warehouse immediately arranges staff to prepare the goods. The staff in charge of preparing goods accurately extract the cables of corresponding specifications and quantities from the inventory according to the order information, and carefully check the packaging and labels of the cables to ensure that the products meet the order requirements. For orders with special requirements, such as cables of a specific length, the warehouse will handle them in accordance with the requirements.
After the goods are prepared, the cables are submitted to the quality inspectors for re-inspection, including appearance and specification parameters. Only products that pass the inspection can be arranged for delivery. When delivering the goods, the staff will properly load the cables onto the transport vehicles and do a good job in fixing to prevent damage during transportation.
At the same time, the staff will timely feedback the logistics tracking number to the customer and inform the customer of the logistics query method, so that the customer can check the transportation progress of the cable at any time. For spot products, delivery can generally be completed within 1-2 working days after the order is confirmed; for customized products, the delivery time will be determined according to the production cycle and informed to the customer in advance.
(IV) Samples
In order to allow customers to fully understand the performance and quality of the product before purchasing, the company provides convenient sample services.
Customers can apply for samples through various methods such as telephone, email and online platforms, indicating the specification, quantity and other information of the required samples. For samples of conventional specifications, the company usually provides them free of charge, but customers need to bear the transportation cost of the samples; for specially customized samples, a certain sample fee will be charged according to the actual production cost, and the sample fee can be refunded when the customer makes a bulk purchase later.
The production and testing standards of samples are exactly the same as those of bulk products to ensure that the samples can truly reflect the quality and performance of bulk products. After the samples are produced, they will go through the same testing items as bulk products, such as electrical performance testing and mechanical performance testing. Only samples that pass the testing will be sent to customers.
The sample packaging is also very standardized, marked with the sample's specification, production batch number and other information, and is accompanied by product instructions and test reports to facilitate customers to understand the details of the samples. After the samples are sent out, the company will timely inform the customer of the express tracking number and track the transportation status of the samples to ensure that the customer can receive the samples in time. After receiving the samples, if the customer has any questions, the company's technical staff will provide professional answers and technical support in a timely manner.
(V) After-Sales Service
The company has a complete after-sales service system to provide customers with all-round after-sales guarantee, so that customers have no worries in the process of using the product.
The warranty period of this cable is [X] years. During the warranty period, if the product has quality problems caused by non-human factors, customers can apply for after-sales service from the company with the purchase certificate. After receiving the after-sales application, the company will arrange professionals to contact the customer within 24 hours to understand the problem of the product.
According to the severity of the problem and the actual situation, the company will adopt corresponding solutions. If the problem can be solved by repair, the company will arrange technical personnel to carry out the repair, and the repair cost will be borne by the company; if the product is seriously damaged and cannot be repaired, the company will provide replacement service for the customer and replace the product of the same specification and quality.
During the installation and use of the product, if customers encounter technical problems, such as installation methods and maintenance, they can contact the company's technical support personnel at any time. The technical personnel will provide professional technical guidance through telephone, video, email and other ways.
The company will also conduct regular return visits to customers to understand the use of the product and customer needs, collect customers' opinions and suggestions, and continuously improve product and service quality. At the same time, it provides customers with product maintenance knowledge to guide customers to use and maintain the cable correctly, so as to extend the service life of the cable.
For long-term cooperative customers, the company will also provide some value-added services, such as priority supply and technical training, to enhance the cooperative relationship with customers.
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