Underground Power Distribution Trunk Line in Residential Communities: In the power supply system of residential communities, this cable can play an important role as an underground power distribution trunk line. There are a large number of residential electrical equipment in the community, such as air conditioners, refrigerators, washing machines, etc. The total power consumption of these equipment is relatively large and the power consumption time is relatively concentrated. This cable can stably transmit power from the community's distribution room to the underground distribution branch boxes of each building, and then distribute the power to each household through the branch boxes. Its 3 + 1 core structure and appropriate current - carrying capacity can well meet the three - phase power supply needs of the community and ensure the stability and safety of residents' electricity use. Moreover, since the underground environment of the community may have a certain degree of humidity, the PVC Sheath of the cable has a moisture - proof function, which can effectively cope with this environment.

Underground Transmission Line in Small and Medium - sized Industrial Plants: There are various production equipment in small and medium - sized industrial plants, such as small machine tools, fans, water pumps, etc. The operation of these equipment requires stable power support. This cable can be used as an underground transmission line in the plant area to connect the general power distribution device of the plant area with the power distribution equipment of each production workshop. Its 95mm² main core can carry the current required for the operation of the equipment, and the neutral core ensures the balance of the three - phase current, avoiding damage to the equipment due to current imbalance. At the same time, there may be some slight mechanical vibration and friction underground in the plant area. The PVC sheath of the cable has a certain mechanical protection function, which can reduce the impact of these factors on the cable.

Underground Power Distribution Branch Line in Commercial Complexes: Underground commercial complexes usually have parking lots, supermarkets, catering and other places, with a wide variety of electrical equipment, such as lighting equipment, elevators, refrigeration equipment, etc. This cable can be used as an underground power distribution branch line to transmit power from the underground main distribution box of the commercial complex to the power distribution points in various areas. Its compact structure is suitable for laying in the complex pipeline environment underground in commercial complexes, and can stably provide power for various equipment to meet the power demand of commercial places.

Materials

Style

Conductor Production: For copper conductors, high - purity copper raw materials are first selected, made into copper rods through smelting, purification and other processes, and then the copper rods are drawn into Copper Wires of the required diameter through wire drawing equipment. After that, multiple copper wires are stranded according to a specific stranding process to form main core conductors with a cross - sectional area of 95mm² and neutral core conductors with a cross - sectional area of 50mm². During the stranding process, the stranding pitch and tension are strictly controlled to ensure the roundness of the conductor and uniform conductivity.

Insulation Layer Extrusion: Special extrusion equipment is used to coat the conductor with an insulation layer. The XLPE material is heated to a molten state and uniformly extruded and coated on the surface of the conductor through an extrusion die to form an insulation layer. During the extrusion process, parameters such as extrusion temperature, speed and pressure are accurately controlled to ensure that the insulation layer has a uniform thickness, a smooth surface, is closely combined with the conductor, and has no defects such as bubbles and impurities. After extrusion, the insulation layer is cross - linked. By heating, the XLPE molecules form a three - dimensional network structure, thereby improving the temperature resistance, mechanical strength and insulation performance of the insulation layer.

Cabling: 3 main cores of 95mm² wrapped with insulation layers and 1 neutral core of 50mm² wrapped with insulation layers are cabled according to the designed stranding method. During the cabling process, appropriate filling materials are filled between the cores to make the cable structure more round. The filling materials have certain Flexibility and insulation properties, which can avoid mutual friction and extrusion between the cores. After cabling, a layer of binding tape is wrapped around the outside to fix the position of the cores and prevent displacement during subsequent processing and use.

Sheath Extrusion: The cabled cable enters the sheath extrusion process. The PVC material is heated and melted, and then uniformly extruded and coated on the outside of the cabled cable through an extruder to form a PVC sheath. During the extrusion process, the extrusion parameters are controlled to ensure that the sheath has a uniform thickness, a flat surface, and is closely attached to the internal structure. The extruded cable is cooled in a cooling water tank to make the PVC sheath solidify and form quickly, enhancing the mechanical properties, moisture - proof and corrosion - resistant properties of the sheath.

Finished Product Inspection: The produced cables are subject to strict inspections. Including appearance inspection to check whether the cable surface is smooth, whether there is damage, and whether the marks are clear; size measurement to detect whether the outer diameter of the cable, the thickness of the insulation layer and the sheath meet the specified standards; electrical performance tests such as insulation resistance test and withstand voltage test to ensure that the electrical performance of the cable meets the standards. Only cables that pass all inspection items can leave the factory.

Packaging Materials: The cable is usually packaged with wooden cable reels or steel cable reels. Wooden cable reels have relatively low costs and light weights, and are suitable for short - distance transportation and packaging of small batches of cables. It has a certain buffering performance and can reduce the impact of vibration and collision on the cable during transportation. Steel cable reels have high strength and strong bearing capacity, and are suitable for long - distance transportation and packaging of large batches of cables, which can better protect the cables from extrusion and collision during transportation and storage.

Packaging Methods: The cable is neatly wound on the cable reel, and appropriate tension is maintained during the winding process to avoid the cable being loose or twisted. A layer of moisture - proof film is wrapped around the outer layer of the cable to further enhance the moisture - proof effect. On the side of the cable reel, information such as the cable's model (Na2xy), specification (3×95 + 50mm²), length, manufacturer, and production date is clearly marked for users to identify and trace. For wooden cable reels, protective plates are installed on their edges to prevent the cable from being damaged by collision during handling.

Packaging Requirements: The packaging must be firm and reliable, able to withstand external forces during transportation and handling, and prevent the cable from moving, wearing or being damaged in the packaging. The packaging should have good moisture - proof and dust - proof performance to prevent the cable from being affected by external environmental factors. At the same time, the packaging should be convenient for hoisting and transportation. Special hoisting holes are set on the cable reel to facilitate loading and unloading operations with hoisting equipment.

Transportation Methods: Choose an appropriate transportation method according to the transportation distance and the number of cables. Short - distance transportation generally uses truck transportation. The truck is equipped with a special fixing device to fix the cable reel firmly to prevent shaking during transportation. For long - distance transportation, railway transportation can be chosen. Railway transportation has good stability and large transportation capacity, which is suitable for long - distance transportation of large quantities of cables and can reduce the 颠簸 and impact on the cables during transportation.

Transportation Precautions: Before transportation, conduct a comprehensive inspection of the cable reel to ensure that the cable is wound firmly and the fixing device is reliable. During transportation, avoid severe collision and extrusion of the cable reel, and it is strictly forbidden to place the cable reel upside down or obliquely. Obvious warning signs such as "Handle with Care", "Do Not Invert" and "Moisture - proof" are set on the transport vehicle to remind transport personnel to pay attention to relevant matters. During transportation, avoid the cable being exposed to the sun, rain, freezing and other bad weather. If necessary, use covering materials for protection. Drivers should drive steadily during transportation and avoid operations such as sudden braking and sharp turns to reduce the shaking of the cable reel.

Transportation Tracking: Arrange special personnel to track the transportation process of the cable, and keep abreast of the transportation progress and location of the cable through communication with the transport driver. If there are transportation delays, poor road conditions and other situations, take timely countermeasures to ensure that the cable can arrive on time and safely.

Delivery Process: After the customer places an order, the sales staff promptly transmit the order information to the warehouse management personnel. Warehouse management personnel check the cable's model, specification, quantity, etc. according to the order information to ensure that the delivered cable is consistent with the order requirements. Conduct a pre - shipment inspection of the cable to check whether the packaging of the cable is intact, whether the logo is clear, and whether the cable appearance is damaged. After passing the inspection, arrange transport vehicles and go through the delivery procedures. After loading and fixing the cable on the transport vehicle, inform the customer of the transport information, such as the license plate number of the transport vehicle, the driver's contact information, and the estimated arrival time, to facilitate the customer's preparation for receipt.

Delivery Time: When there is sufficient inventory, delivery is generally completed within 2 - 3 working days after receiving the order. If it is a customized specification or there is insufficient inventory, communicate with the customer in a timely manner, inform them of the production cycle and estimated delivery time, and allow the customer to arrange their time reasonably.

Delivery Notification: After the cable is shipped, notify the customer in a timely manner via SMS, email or phone call, inform the customer that the cable has been shipped, and provide relevant transport information and logistics inquiry methods to facilitate the customer to track the goods.

Sample Provision: For customers in need of samples, cable samples of corresponding specifications can be provided. The length of the sample is generally 1 - 2 meters. The specification and material of the sample are consistent with the formal product, which can accurately reflect the actual situation of the product and facilitate customers to understand the Structure and Performance of the cable.

Sample Cost: The sample itself is provided to the customer free of charge, but the transportation cost of the sample is borne by the customer. The customer can choose to pay the freight by cash on delivery or arrange for shipment by the manufacturer after paying the freight in advance.

Sample Delivery: After receiving the customer's sample application and confirming relevant information, the staff will prepare the sample within 1 - 2 working days. The sample is simply packaged to prevent damage during transportation. A reliable express logistics company is selected for delivery, and the express waybill number is informed to the customer before delivery to facilitate the customer to check the logistics information of the sample and know the delivery progress and estimated arrival time of the sample. At the same time, product description materials are attached to the sample to help the customer better understand the relevant information of the sample.

Quality Assurance: This cable provides a quality guarantee period of 12 - 24 months. Within the quality guarantee period, if the cable fails due to its own quality problems, such as conductor breakage, insulation layer breakdown, and sheath damage, after being tested and confirmed by professionals, the manufacturer will provide customers with free repair or replacement services.

After - Sales Service Response: A special after - sales service hotline and email are set up. Customers can contact after - sales service personnel at any time if they encounter any problems during use. After receiving customer feedback, after - sales service personnel will respond within 24 hours, understand the specific situation of the problem, and provide preliminary solutions.

On - Site Service: For problems that need on - site handling, such as faults in the laying or use of cables, the manufacturer will send professional technical personnel to conduct on - site investigation and handling. After arriving at the site, technical personnel will analyze the cause of the fault and take effective solutions to restore power supply as soon as possible.

Technical Support: Provide customers with professional technical support services, including cable selection suggestions, laying and installation guidance, and use and maintenance consultation. When customers purchase cables, technical personnel recommend appropriate cable models and specifications for customers according to factors such as the customer's use scenarios and power loads. If customers encounter technical problems during cable laying and use, technical personnel will provide detailed guidance and solutions.

Customer Feedback: A customer feedback mechanism is established to regularly collect customers' opinions and suggestions on product quality and services. Reasonable suggestions and opinions put forward by customers are studied and improved in a timely manner to continuously improve product quality and service levels and enhance customer satisfaction.