I. From the Perspective of the Product Itself
(I) Specification Parameters
The specification parameters of 4-
Core XLPE cable (120mm², 300mm² copper conductor XLPE/SWA/
PVC Power Cable) are important reflections of its performance and application scope, and each parameter is carefully designed and strictly controlled.
In terms of core specifications, the cable adopts a 4-core design, which is compatible with the three-phase four-wire circuit. Among them, three cores are used to transmit three-phase current, and the other serves as a neutral wire, which can effectively balance the current, stabilize the voltage, and ensure the normal operation of the circuit. The core cross-sectional area is divided into two specifications: 120mm² and 300mm². The 120mm² core can meet the power transmission needs of medium-power equipment and lines, while the 300mm² core can carry a larger current and is suitable for power transmission of high-power equipment and main lines.
In terms of voltage level, the cable is suitable for medium and low voltage distribution systems, and the specific voltage range complies with relevant industry standards. It can work safely and stably within the specified voltage range, providing reliable power support for various medium and low voltage electrical equipment.
Insulation thickness is a key parameter to ensure the insulation performance of the cable. The XLPE insulation layer has a specific thickness, which has been accurately calculated and tested. It can effectively prevent current leakage under normal working voltage, ensure the insulation reliability of the cable, and also withstand certain overvoltage impacts.
The parameters of the steel wire armoring layer are strictly regulated, including the diameter of the steel wire, winding density, etc. These parameters ensure that the armoring layer has sufficient strength and toughness, which can effectively resist external mechanical impacts, extrusion and other forces, and protect the internal structure of the cable from damage.
The thickness of the
PVC Sheath also has a clear standard. A suitable thickness can ensure the full play of its moisture-proof and anti-corrosion performance, and at the same time provide additional mechanical protection for the cable.
In addition, the outer diameter and bending radius of the cable are also important specification parameters. The outer diameters of 120mm² and 300mm² cables are different. The outer diameter of 300mm² cable is larger than that of 120mm² cable, which will affect the space required for laying and the installation method. A reasonable bending radius ensures that the cable will not damage the internal structure due to excessive bending during installation, and ensures that its electrical and mechanical properties are not affected. Generally, the bending radius is required to be no less than a certain multiple of the cable outer diameter.
4-core XLPE cable (120mm², 300mm² copper conductor XLPE/SWA/PVC power cable) has a wide range of characteristic uses in many fields by virtue of its excellent performance.
In industrial plants, this cable plays an important role. The 120mm² specification cable can be used for power supply of small and medium-sized industrial equipment, such as some machine tools, fans, etc.; the 300mm² specification cable is suitable for large industrial equipment, such as large compressors, motors, etc., and can meet their high-power power demand. There are problems such as mechanical collision, dust, chemical corrosion in the industrial environment. The steel wire armoring layer can provide good mechanical protection for the cable, and the XLPE insulation layer and PVC sheath can resist chemical corrosion and dust attack, ensuring the long-term stable operation of the cable.
In large buildings, this cable is also indispensable. The 120mm² specification cable can be used for branch lines in the building to supply power to lighting, air conditioners, elevators and other equipment in the floor; the 300mm² specification cable is suitable for the main distribution lines of the building, undertaking the power transmission task of the entire building or multiple areas. Its flexible installation method enables it to adapt to the complex wiring environment of large buildings, and the steel wire armoring layer and PVC sheath can protect the cable from damage during building construction and daily use.
In the field of municipal engineering, this cable is also widely used. In urban municipal facilities such as sewage treatment plants and garbage treatment stations, 120mm² and 300mm² cables can be used according to the power demand of equipment to provide power support for various equipment. In municipal engineering, cables may face wind, sun, rain and other outdoor environments. The moisture-proof, anti-corrosion performance of PVC sheath and the mechanical protection performance of steel wire armoring layer can ensure the stable operation of cables in these environments.
In addition, the cable is also applicable to the distribution systems of large venues, transportation hubs and other places. These places have many electrical equipment and large power demand. Cables of two specifications can meet the power demand of different areas and equipment respectively, providing reliable power guarantee for the normal operation of the places.
(III) Material and Style
Material
The material selection of the cable is the basis for its excellent performance. Each material has been strictly screened to ensure the quality and reliability of the cable.
The conductor is made of high-purity copper, which has excellent conductivity, can effectively reduce energy loss during current transmission, and improve power transmission efficiency. At the same time, copper has good ductility and toughness, which is easy to be processed into cores, and is not easy to break during installation and use, ensuring the service life of the cable.
The insulation layer is made of cross-linked polyethylene (XLPE), which has many advantages. It has a wide temperature resistance range and can maintain stable insulation performance in the environment of -40℃ to 90℃, without aging, cracking and other problems due to drastic temperature changes. XLPE has high insulation resistance, which can effectively prevent current leakage and ensure the safe operation of the cable. In addition, it also has good chemical corrosion resistance and anti-aging performance, and can adapt to various complex environmental conditions.
The steel wire armoring layer (SWA) is made of high-strength galvanized steel wire. The galvanizing treatment makes the steel wire have good corrosion resistance, which can prolong the service life of the armoring layer. The steel wire itself has high strength and hardness, and the formed armoring layer can effectively resist external mechanical impacts, extrusion and gnawing by rodents, providing reliable protection for the internal structure of the cable.
The outer sheath is made of polyvinyl chloride (PVC). PVC has good moisture-proof and anti-corrosion performance, which can protect the internal structure of the cable from moisture and corrosive substances. At the same time, the PVC sheath also has certain mechanical strength, which can provide additional protection for the cable and extend the service life of the cable.
Style
In terms of appearance, the cable presents a regular and compact feature. The whole is a cylindrical structure, with
4 Cores arranged in order inside. The outside is wrapped with XLPE insulation layer, steel wire armoring layer and PVC sheath in turn. All layers are closely combined to form a solid whole.
The color of the cable is usually black, which is not only resistant to dirt, but also can reduce the impact of direct sunlight on the cable. The colors of the cores are clearly distinguished, generally using yellow-green 双色，black, brown, gray, etc., which is convenient for identifying different core functions during installation and improves installation efficiency.
The two specifications of 120mm² and 300mm² cables differ in thickness. The 300mm² cable is relatively thick, and the 120mm² cable is slightly thin, but the overall style design is unified, which takes into account both functionality and installation convenience, and can adapt to different laying environments and installation methods.
(IV) Production Process
The production process of 4-core XLPE cable (120mm², 300mm² copper conductor XLPE/SWA/PVC power cable) is advanced and rigorous, ensuring high quality and high performance of the product.
In the conductor manufacturing link, first, high-purity copper raw materials are smelted to remove impurities, and then made into copper rods through continuous casting process. The copper rod is drawn into
Copper Wire with the required diameter through wire drawing treatment. During the wire drawing process, the drawing speed and die size need to be accurately controlled to ensure the uniform diameter of the copper wire. After that, multiple copper wires are stranded according to certain rules to form 120mm² and 300mm² cores respectively. The stranding process can improve the
Flexibility and overall strength of the core, facilitating subsequent processing and installation.
The insulation layer is made by cross-linking process. Polyethylene particles are added into the extruder, heated and melted, and then extruded and coated on the surface of the conductor through a die to form a preliminary insulation layer. Subsequently, the extruded insulation layer is cross-linked, usually by dry cross-linking, so that the polyethylene molecules change from linear structure to network structure. This cross-linking reaction can significantly improve the temperature resistance, mechanical strength and insulation performance of the insulation layer, ensuring that the insulation layer can work stably in various environments.
The steel wire armoring layer is made by winding high-strength galvanized steel wires around the outside of the
Insulated Core through an armoring machine at a certain angle and density to form the armoring layer. During the winding process, the tension of the steel wire and the winding pitch need to be strictly controlled to ensure the uniformity and tightness of the armoring layer, so that the armoring layer can give full play to its protective role.
The extrusion of PVC sheath is carried out outside the armoring layer. PVC material is added into the extruder, heated and melted, and then extruded and coated on the surface of the armoring layer through a die to form a continuous sheath. This process requires the sheath to be uniform and have a consistent thickness to ensure the stability of its moisture-proof, anti-corrosion performance and mechanical protection performance.
Throughout the production process, quality inspection runs through. From the incoming inspection of raw materials, to the online inspection of each process, and then to the factory inspection of finished products, strict standards and advanced testing equipment are adopted. For example, the resistance of the conductor, the insulation resistance and voltage resistance performance of the insulation layer, the adhesion of the armoring layer, the thickness and performance of the PVC sheath, etc. are comprehensively tested to ensure that each batch of cables meets the relevant quality standards and technical requirements.
II. From the Perspective of General Product Information
(I) Packaging
The packaging design of 4-core XLPE cable (120mm², 300mm² copper conductor XLPE/SWA/PVC power cable) fully considers the product protection, transportation and storage needs, while taking into account cost and environmental protection factors.
For coiled cables, wooden reels are usually used for packaging. The wooden reel has sufficient strength and stability, which can bear the weight of the cable and prevent deformation or damage during transportation and storage. When the cable is wound on the reel, it will be wound according to a certain tension to ensure that the cable is arranged neatly and avoid mutual winding and extrusion. Baffles will be installed on both sides of the reel to prevent the cable from slipping off the reel. In order to prevent moisture and dust, the outer layer of the cable will be wrapped with a layer of plastic film. The plastic film is made of environmentally friendly materials, which not only plays a protective role, but also reduces environmental pollution.
For small-length cables or samples, strong cartons are generally used for packaging. The carton is made of high-strength corrugated paper, which has good compressive performance and can protect the cable from damage during transportation. The size of the carton will be customized according to the length and diameter of the cable to ensure that the cable can be placed tightly in it to avoid shaking and collision during transportation. Inside the package, some buffer materials, such as foam boards and bubble films, will be placed to further reduce the impact of transportation on the cable.
The packaging surface will clearly mark the relevant information of the product, including product name, specification model (4-core 120mm² or 4-core 300mm²),
Conductor Material, insulation and sheath material, length, weight, manufacturer, production date, implementation standard, etc. This information is convenient for customers to check when receiving the product, and also conducive to product traceability and management.
(II) Transportation
The transportation process of the cable focuses on safety, efficiency and cost control to ensure that the products can be delivered to customers in a timely and intact manner.
In terms of transportation mode selection, reasonable arrangements will be made according to factors such as transportation distance and transportation volume. For short-distance transportation, road transportation is usually adopted. Road transportation has high flexibility, can realize door-to-door service, and the transportation cost is relatively low, which is suitable for the transportation of small batches of cables. For long-distance transportation with large transportation volume, railway transportation will be selected. Railway transportation has the characteristics of large transportation volume, low cost and good stability, which can effectively reduce the cost of long-distance transportation.
During transportation, the cable needs to be properly fixed. For cables packaged with wooden reels, steel wire ropes or fastening belts will be used to firmly fix the reels in the carriage of the transport vehicle to prevent the reels from sliding and colliding due to vehicle bumps, turns and other reasons during transportation. The fixing method should be simple and effective, which should not only ensure the safety of the cable, but also be convenient for loading and unloading.
During transportation, attention should also be paid to protecting the cable from harsh environments. A tarpaulin is covered on the transport vehicle to prevent the cable from being exposed to direct sunlight, rain and snow. At the same time, it is necessary to avoid mixing the cable with corrosive substances and sharp objects to prevent the cable from being corroded or mechanically damaged.
Transport personnel need to understand the characteristics and transportation requirements of the cable, check the condition of the transport vehicle before transportation, and ensure that the braking, suspension and other systems of the vehicle are normal. During transportation, regularly check the fixing of the cable and the integrity of the package, and handle problems in time to avoid unnecessary losses.
(III) Delivery
The delivery process is standardized, focusing on efficiency and accuracy to meet customer delivery requirements.
After the customer places an order, the sales department will review the order in time to confirm the product specification model (4-core 120mm² or 4-core 300mm²), quantity, delivery date, delivery address and other information. After passing the review, the order information will be transmitted to the warehouse department, which will prepare goods according to the order information. Warehouse managers will retrieve the corresponding products from the inventory in accordance with the first-in-first-out principle, and carefully check the packaging, labels and quantity of the products to ensure that they are consistent with the order information.
After the goods are prepared, the warehouse department notifies the logistics department to arrange transportation. The logistics department selects appropriate transportation methods and vehicles according to the characteristics of the products, transportation distance and customer requirements, and signs a transportation contract with the transporter to clarify the rights and obligations of both parties. Before loading, the transporter inspects and cleans the transport vehicle to ensure that the vehicle is in good condition and free of pollutants.
During the loading process, warehouse managers and transport personnel will jointly supervise to ensure that the loading of cables meets the requirements and is firmly fixed. After loading, the warehouse manager will send relevant product materials, such as product certificates, test reports, packing lists, etc., along with the goods, which will be signed and confirmed by the transport personnel.
After delivery, the logistics department will timely feed back the transportation information to the customer, including the license plate number of the transport vehicle, the driver's contact information, the estimated arrival time, etc., to facilitate the customer to track the transportation status of the goods. At the same time, the logistics department will keep in close contact with the transporter to timely understand the transportation status of the goods and ensure that the goods are delivered on time.
(IV) Samples
In order to allow customers to better understand the performance and quality of the product, the company provides sample services, and the sample provision process is simple and efficient.
Customers can apply for samples through the company's official website, telephone, email and other methods. When applying, it is necessary to provide detailed contact information, address and the specification model of the required sample (4-core 120mm² or 4-core 300mm²). After receiving the sample application, the company will process the application within 1-3 working days and confirm the relevant information of the sample with the customer.
The specification and performance of the sample are consistent with the mass-produced products, which can truly reflect the actual situation of the product. The length of the sample is generally 1-5 meters, and the specific length can be adjusted according to the customer's needs. The sample is packaged in a strong carton, and relevant product materials, such as product instructions and test reports, are attached with the sample to help customers understand the performance, characteristics and use methods of the sample.
Samples are usually sent by express to ensure that they can be delivered to customers quickly and safely. For the cost of samples, the company usually provides the samples themselves free of charge, but the transportation cost of the samples needs to be borne by the customer. If the customer signs a bulk purchase contract later, the company will consider reducing or exempting the transportation cost of the sample according to the contract amount and other circumstances to reward the customer's trust and support.
(V) After-sales Service
The company attaches great importance to after-sales service and provides customers with all-round and efficient after-sales support to solve problems encountered by customers in the process of product use.
Within the product warranty period (usually 12 months from the date of product delivery), if the customer finds quality problems with the product, such as conductor failure, insulation layer damage, armoring layer damage, PVC sheath cracking, etc., they can contact the company's after-sales service department in time. The after-sales service department will respond within 24 hours after receiving the customer's feedback, understand the specific situation of the problem, and arrange professional technical personnel to deal with it.
Technical personnel will judge the cause of the problem according to the situation fed back by the customer. If it is confirmed that it is a quality problem of the product itself, the company will take measures such as repair or replacement according to the specific situation to ensure that the customer's normal use is not affected. For problems that require on-site handling, the company will arrange technical personnel to go to the site for inspection and repair as soon as possible.
In addition to handling quality problems, the after-sales service department also provides customers with professional technical consulting services. When customers encounter any problems in the process of product installation, use, maintenance, etc., they can consult the after-sales service department by phone, email, etc. The after-sales service personnel will provide customers with detailed answers and professional suggestions.
The company has established a sound customer file to record and track customers' purchase information, usage status, after-sales feedback, etc. Through the analysis and summary of customer feedback information, the company continuously improves product quality and service level, and improves customer satisfaction. At the same time, the company will conduct regular return visits to customers to understand the use of products and customer needs, and provide customers with necessary technical support and services.
In short, the company's after-sales service system runs through the entire life cycle of the product, aiming to provide customers with reliable, convenient and efficient services, so that customers have no worries in the process of using the product, and fully experience the high-quality performance and service guarantee of the product.
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