Conductor Material: The conductor of the cable is made of high-purity copper with a purity of more than 99.9%. High-purity copper has excellent electrical conductivity, which can reduce resistance, reduce energy loss during power transmission, and improve transmission efficiency. At the same time, pure copper has good ductility and toughness, allowing the cable to adapt to a certain degree of bending and stretching during laying and installation, facilitating construction operations.

Insulation layer material: The insulation layer is mostly made of cross-linked polyethylene (XLPE). This material has excellent anti-aging properties, which can maintain stable insulation performance in the long-term underground environment and is not easy to age and deteriorate over time. Moreover, cross-linked polyethylene has excellent moisture resistance, which can effectively block moisture even in the high-humidity underground environment, preventing the decline of insulation performance. In addition, it also has high mechanical strength and chemical corrosion resistance, which can resist the erosion of various chemical substances in the underground soil.

Armor layer material: The armor layer is composed of high-strength galvanized steel wires. High-strength steel wires can provide strong mechanical protection against external impacts and 挤压. The galvanizing treatment endows the steel wires with good corrosion resistance, preventing the steel wires from rusting and corroding in the underground humid environment, prolonging the service life of the armor layer, and thus ensuring the protective effect of the entire cable.

Style design: The cable is cylindrical as a whole with a compact structure. From the appearance, the outer armor layer presents regular spiral winding lines, which is not only its unique identifier but also can intuitively reflect the tightness and protection strength of the armor layer. The color of the cable is usually black, which can absorb heat, reduce the impact of temperature changes on the cable, and also has a certain dirt resistance, adapting to the complex underground environment.

Conductor production: First, high-purity copper raw materials are smelted to remove impurities, obtaining copper water that meets the purity requirements. Then, the copper water is cast into copper rods through continuous casting process, and the diameter of the copper rods is adjusted according to the cable specifications. Next, the copper rod is drawn into Copper Wires of the required diameter by wire drawing process. During the wire drawing process, it is necessary to control the tension and speed to ensure the dimensional accuracy and mechanical properties of the copper wire. Finally, multiple copper wires are stranded together to form the conductor of the cable. The stranding process can improve the Flexibility of the conductor and the uniformity of its conductive performance.

Insulation layer extrusion: When wrapping the insulation layer on the outer layer of the conductor, the extrusion molding process is adopted. The cross-linked polyethylene material is heated to a molten state, and uniformly coated on the surface of the conductor through the die of the extruder to form a continuous insulation layer. During the extrusion process, it is necessary to accurately control the temperature, pressure, and extrusion speed to ensure that the thickness of the insulation layer is uniform, the surface is smooth, and it is closely combined with the conductor without defects such as bubbles and impurities. After extrusion, the insulation layer is cross-linked. Through heating and other methods, the cross-linked polyethylene molecules undergo a cross-linking reaction to form a three-dimensional network structure, thereby improving the mechanical properties, temperature resistance, and anti-aging properties of the insulation layer.

Armor layer production: The production of the armor layer is one of the key links in the production of this cable. First, high-strength steel wires are galvanized, and the galvanized layer should be uniform and dense to ensure the corrosion resistance of the steel wires. Then, a special armoring machine is used to spirally wind the galvanized steel wires around the insulation layer at a certain angle and density. During the winding process, it is necessary to control the tension and winding speed of the steel wires to ensure that the armor layer is tight and firm without loosening, overlapping, or other phenomena. After winding, the armor layer is inspected to ensure that it meets the quality standards.

Sheath extrusion (if any): Some cables will also extrude a sheath outside the armor layer to further enhance the protective performance of the cable. The sheath material is usually polyethylene or polyvinyl chloride. The extrusion process is used to coat it outside the armor layer, which is similar to the insulation layer extrusion. It is necessary to ensure that the thickness of the sheath is uniform, the surface is smooth, and it is closely combined with the armor layer.

Finished product inspection: After production, the cable undergoes a comprehensive finished product inspection. Including appearance inspection to check whether the surface of the cable has damage, deformation, and other defects; dimensional inspection to measure whether the outer diameter of the cable, the thickness of the insulation layer, the thickness of the armor layer, and other parameters meet the specification requirements; electrical performance testing to detect the insulation resistance, voltage resistance, and other properties of the cable; mechanical performance testing to test the tensile strength, bending performance, etc. of the cable. Only cables with all indicators qualified can leave the factory as finished products.

Packaging materials: Underground steel wire armored cables are usually packaged with sturdy wooden reels. The wooden reels are made of high-quality hardwood, which has high strength and load-bearing capacity, and can bear the weight of the cable and the external force generated during transportation and storage. The edges of the wooden reels are equipped with metal reinforcements to further enhance the structural stability of the wooden reels and prevent damage to the wooden reels during handling.

Packaging method: The cable is neatly wound on the wooden reel. During winding, it is necessary to ensure that the cable is arranged tightly and flatly without distortion or crossing. A layer of plastic film is wrapped around the outer layer of the cable. The plastic film has good moisture-proof and dust-proof properties, which can protect the cable from pollution by the external environment during storage and transportation. Each reel of cable is firmly fixed on the wooden reel to prevent the cable from loosening and slipping during transportation.

Packaging marks: The relevant information of the product is clearly marked on the side and end face of the wooden reel, including the model, specification, cross-sectional area, length, production batch number, production date, execution standard, manufacturer's name, address, and contact information, etc. These marks are clear and easy to read, facilitating users to identify and check product information, and also facilitating product traceability and management.

Transportation method: Choose the appropriate transportation method according to factors such as transportation distance and order quantity. For long-distance transportation with a large number of orders, railway transportation is usually used. Railway transportation has the advantages of large transportation volume, relatively low cost, and good stability, which can ensure the safe and efficient transportation of cables. For medium and short-distance transportation or a small number of orders, road transportation is mostly used. Road transportation has high flexibility and can realize door-to-door service, which is convenient for customers to receive goods. In some emergency situations, air transportation can also be used, but due to the large weight of the cable, the cost of air transportation is high, so it is generally not used as a conventional transportation method.

Transportation precautions: During transportation, ensure that the cable wooden reels are placed stably to avoid tilting, inverting, or colliding. The carriage of the transport vehicle should be kept clean and dry, without sharp objects, to prevent damage to the cable packaging and the cable itself. When loading and unloading cables, special lifting equipment should be used, and light loading and unloading should be carried out to avoid damage to the cables due to improper loading and unloading. During transportation, measures should be taken to prevent rain, sun, and moisture, to avoid the cables being soaked in rain, exposed to the sun, or damp. At the same time, traffic rules should be observed, and the transportation route and time should be reasonably arranged to ensure that the cables can be delivered to the destination on time and safely.

Transportation fixation: To prevent the cable from rolling or shifting during transportation, it is necessary to fix the cable wooden reels. Steel wire ropes, iron chains, etc. can be used to fix the wooden reels on the carriage of the transport vehicle. When fixing, ensure that it is firm and reliable to avoid loosening during the vehicle's travel.

Delivery process: After the customer places an order and makes payment, the warehouse management personnel will prepare the goods according to the order information. First, check whether the model, specification, quantity, etc. of the product are consistent with the order. After confirming that they are correct, arrange personnel for packaging and loading. Before delivery, a final inspection of the cable is carried out to confirm that the product quality and packaging are intact. Then, contact the transportation company to determine the transport vehicle and transportation time, and promptly inform the customer of the delivery information, including the name of the transportation company, license plate number, estimated arrival time, etc., to facilitate the customer to prepare for receipt.

Delivery time: For conventional specification cables in stock, they will generally be arranged for delivery within 1-3 working days after receiving the order and confirming payment. For special specifications or customized cables, the delivery time will be determined according to the production cycle, and they will usually be produced and delivered within 7-15 working days. The specific delivery time will be communicated and confirmed with the customer in advance.

Delivery tracking: After the cable is shipped, the company will track the transportation status of the goods. By maintaining contact with the transportation company, timely understand the location and transportation progress of the goods. If there are abnormal situations during transportation, such as traffic jams, weather impacts, etc., leading to transportation delays, the customer will be notified in a timely manner, and active coordination will be made to solve the problem to ensure that the goods can be delivered as soon as possible.

Sample provision: To allow customers to better understand the quality and performance of the product, the company can provide samples for customers. Customers can choose samples of the required specifications according to their own needs. The length of the sample is generally 1-2 meters, which can meet the customer's inspection of the cable's appearance, structure, material, etc.

Sample cost: The sample itself is provided free of charge, but the customer needs to bear the express fee of the sample. For large customers with clear cooperation intentions or long-term partners, the company may consider bearing the express fee of the sample to promote the cooperation.

Sample delivery: After receiving the customer's sample request, the company will prepare the sample within 1-2 working days and send it to the customer by a reliable express method. Before sending, the sample will be properly packaged to prevent damage during transportation. At the same time, the express tracking number will be promptly informed to the customer to facilitate the customer to check the transportation status of the sample.

Quality assurance: The company promises that the underground steel wire armored cables produced and sold meet relevant national standards and industry norms, and the product quality guarantee period is 1-3 years. During the quality guarantee period, if the cable has quality problems caused by non-human factors, such as aging of the insulation layer, damage to the armor layer, etc., the company will provide free repair or replacement services for the customer.

Technical support: The company has a professional technical team that can provide customers with comprehensive technical support. If customers encounter technical problems during the installation and use of the cable, they can contact the company's technical personnel at any time. The technical personnel will provide customers with detailed solutions and guidance through phone calls, emails, etc. For complex technical problems, the company can arrange technical personnel to go to the site for guidance and assistance.

Fault handling: If the customer finds that the cable is faulty during use, they should notify the company in a timely manner. The company will respond within 24 hours after receiving the notification, arrange professional personnel to understand the fault situation, and formulate a handling plan. For faults that need on-site handling, personnel will be arranged to rush to the site for repair or replacement as soon as possible to reduce the customer's losses.

Customer feedback: The company attaches great importance to customers' feedback and has set up special customer feedback channels, such as phone calls, emails, online customer service, etc. Customers can feedback any problems or suggestions encountered during the use of the product through these channels. The company will promptly handle and reply to customers' feedback, and continuously improve product and service quality based on customers' feedback.