Outdoor Power Distribution of Buildings: This cable can play an important role in outdoor power distribution scenarios of buildings. For example, in the outdoor power distribution lines of residential communities, it can transmit power from the distribution room to the outdoor distribution boxes of each building to supply power to equipment such as street lamps, landscape lighting, and outdoor charging piles in the community. Due to its waterproof property, it can stably transmit power even in rainy or humid weather, avoiding the impact of moisture on power supply safety.

Power Supply for Underground Parking Lots: The environment of underground parking lots is usually relatively humid, which has high requirements for the waterproof performance of cables. The PVC Sheath of this cable has a good waterproof function and can effectively block the intrusion of groundwater vapor. In the power supply system of underground parking lots, it can be used as a main line to connect the main distribution box of the parking lot with the distribution boxes of equipment such as lighting, ventilation, and charging piles in various areas, ensuring stable and reliable power supply in underground parking lots.

Power Supply for Municipal Greening Irrigation: Municipal greening irrigation equipment is usually installed in outdoor open environments and often comes into contact with water. The waterproof property of this cable enables it to adapt to such working environments. It can supply power to equipment such as water pumps and control boxes of the greening irrigation system, and safely transmit power from nearby power distribution points to irrigation equipment to ensure the smooth progress of irrigation work.

Other Water - Related Places: This cable can also play an important role in some water - related places, such as power supply around swimming pools and power supply for fountain equipment. It can work normally in humid environments or even occasionally in contact with water, providing stable power support for related equipment and ensuring electrical safety at the same time.

Materials:

Style: The cable is designed in a 3 - core + ground wire style. The 3 main cores and 1 ground wire are combined in a certain stranding way, and the outside is wrapped with a PVC sheath. This structure is compact and reasonable, with strong integrity, which is not only convenient for laying and installation but also can reduce mutual interference during the use of the cable. The appearance of the cable is round with a smooth surface. This design makes it easier for the cable to pass through pipes during laying, reducing the difficulty of laying. At the same time, the smooth surface also reduces friction with other objects, which helps to extend the service life of the cable.

Conductor Production: First, high - quality aluminum materials are selected, and impurities are removed through smelting to improve the purity of aluminum. Then, aluminum ingots are processed into aluminum rods, and then the aluminum rods are drawn into Aluminum Wires of the required diameter through wire drawing equipment. For cores of 240mm² and 120mm², multiple Aluminum Wires are stranded according to specific stranding processes to form conductors that meet the specifications. During the stranding process, the stranding pitch and tension are strictly controlled to ensure the roundness of the conductor and uniform and stable 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 XLPE 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 240mm² wrapped with XLPE insulation layers and 1 ground wire of 120mm² 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, relevant 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 and waterproof performance of the sheath.

Finished Product Inspection: The produced cables are subject to strict inspections. Including appearance inspection to check whether the surface of the cable 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 thickness of the sheath meet the specified standards; electrical performance tests such as insulation resistance test and withstand voltage test to ensure that the insulation performance and voltage withstand performance of the cable meet the standards; in addition, waterproof performance tests are also carried out to verify whether the waterproof effect of the cable meets the requirements. 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 vibration and collision to the cable during transportation. Steel cable reels have higher strength and bearing capacity, and are suitable for long - distance transportation and packaging of large batches of cables, which can better protect the cables from damage 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 waterproof and moisture - proof effect. For wooden cable reels, protective baffles are installed on their edges and sides to prevent the cable from being collided during transportation and handling. On the side of the cable reel, information such as the model, specification, length, rated voltage, manufacturer, production date, and CE certification mark of the cable is clearly marked for easy identification and traceability.

Packaging Requirements: The packaging must be firm and reliable, able to withstand external forces such as bumps, extrusion, and collision during transportation, 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 protect the cable from the impact of the external environment. 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. For export products, the packaging must also meet the packaging standards and requirements of relevant countries and regions.

Transportation Methods: Select appropriate transportation methods according to the transportation distance and the number of cables. For short - distance transportation, truck transportation is generally used. The trucks are equipped with special fixing devices to fix the cable reels firmly to prevent movement during transportation. For long - distance transportation, railway transportation or long - distance road transportation can be chosen. Railway transportation has good stability and a large transportation volume, which is suitable for long - distance transportation of large batches of cables; long - distance road transportation has higher flexibility and can directly deliver the cables to the destination.

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 the cable reel from being severely collided, extruded, exposed to the sun, or rained on. It is strictly forbidden to place the cable reel upside down or obliquely to prevent the cable from being loose or damaged. 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, drivers should drive steadily 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 status of the cable. Keep in contact with the transport driver to grasp the transportation progress and location. In case of transportation delays, poor road conditions, and other situations, take timely countermeasures to ensure that the cable can arrive at the destination on time and safely.

Delivery Process: After receiving the customer's order, the sales staff promptly transmit the order information to the warehouse management personnel. The warehouse management personnel check the model, specification, and quantity of the cable 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 marks are clear, and whether the appearance of the cable 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 transportation 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 1 - 3 working days after receiving the order. For cables with customized specifications, the delivery time is determined according to the production cycle, and the customer is promptly communicated with to inform them of the production progress and estimated delivery time so that the customer can arrange their time reasonably.

Delivery Notification: After the cable is shipped, notify the customer in a timely manner by SMS, email, or phone call, inform the customer that the cable has been shipped, and provide relevant transportation 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 specification of the sample is consistent with that of the formal product, which is 3×240 + 1×120mm², and can accurately reflect the actual performance and appearance of the product. The length of the sample is generally 1 - 2 meters. This length allows customers to clearly observe the structure, material, and marks of the cable without causing excessive material waste.

Sample Costs: The sample itself is provided to the customer free of charge, but the transportation cost of the sample is borne by the customer. Customers 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. Before delivery, the express waybill number is informed to the customer 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 performance and characteristics 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 through these channels 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 some 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 put forward by customers are studied and adopted in a timely manner to continuously improve product and service quality. At the same time, customer feedback problems are classified and sorted out, the causes of the problems are analyzed, and preventive measures are taken to avoid similar problems from happening again.