The specification parameters of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable are the basis for its performance and application. Each parameter is carefully designed and strictly controlled to ensure that the cable can operate stably in various complex environments.

The core specification of this cable is 4×150mm², which means it contains 4 Aluminium Conductors with a cross-sectional area of 150mm². This conductor configuration makes it suitable for three-phase four-wire systems and other circuit systems, capable of achieving both electrical energy transmission and neutral wire functions, meeting the needs of various power transmission scenarios. The 150mm² conductor cross-sectional area endows the cable with excellent current-carrying capacity. Under the conditions of an ambient temperature of 30°C and direct burial laying, its continuous current-carrying capacity can reach more than 240A. This strong current-carrying capacity enables it to easily cope with the power demands of medium and high-voltage scenarios such as large industrial equipment, high-rise building power distribution, and municipal power grid transformation, usually applicable to voltage levels such as 10kV and 35kV.

From the model, "YJLV22" has a clear meaning. Among them, "YJ" represents cross-linked polyethylene insulation, "L" indicates aluminium core, "V" represents polyvinyl chloride sheath, and "22" indicates that the cable adopts Steel Tape armouring. "Zr" clearly indicates the flame-retardant property of the cable, which makes it more advantageous in terms of safety. The overall structure can be summarized as Al/XLPE/Sta/PVC, that is, composed of aluminium conductor, cross-linked polyethylene insulation layer, steel tape armouring layer and polyvinyl chloride sheath layer in sequence.

In terms of insulation performance, the cross-linked polyethylene (XLPE) insulation layer performs excellently. After irradiation or chemical cross-linking treatment, its temperature resistance level is increased to 90°C, and it can maintain stable insulation performance in a higher temperature environment. At the same time, the insulation resistance is ≥1000MΩ·km, and the breakdown field strength is ≥20kV/mm. These parameters ensure that the insulation layer can effectively resist partial discharge and aging phenomena under high-voltage electric fields, providing a solid guarantee for the safe operation of the cable.

The steel tape armouring layer is composed of two layers of interlocking cold-rolled steel tapes with a thickness of ≥0.3mm. This structural design not only significantly enhances the cable's resistance to mechanical impact, enabling it to withstand radial pressure of ≥10kN and resist external mechanical effects such as collision and extrusion, but also effectively prevents gnawing by creatures such as rats and termites, greatly improving the durability of the cable in complex laying environments and making it suitable for scenarios prone to external forces such as direct burial and pipe threading.

The outer polyvinyl chloride (PVC) sheath, after adding flame retardants, has excellent flame-retardant properties, complying with GB/T 19666 or IEC 60332 standards. When burning in an open flame, it can effectively inhibit the spread of flames, with a self-extinguishing time of ≤30 seconds, buying valuable time for personnel evacuation and property protection in case of fire. In addition, the PVC Sheath also has good acid and alkali resistance and weather resistance, able to adapt to various complex environments such as outdoors and humidity, extending the service life of the cable.

The 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable, relying on its unique performance advantages, has a wide range of applications in many fields and has become an important choice in the field of power transmission.

In the industrial field, large industrial equipment has a large demand for electricity and high requirements for power supply stability. This cable can meet its high current-carrying capacity demand and provide continuous and stable power support for the normal operation of the equipment. For example, in large factories such as steel mills and machinery factories, the operation of various heavy machinery and production lines is inseparable from stable power supply. This cable can reliably undertake the task of power transmission to ensure the smooth progress of production.

The power distribution system of high-rise buildings is complex and has high requirements for the safety and space occupation of cables. Due to the steel tape armouring of this cable, it has strong resistance to mechanical impact, can adapt to the complex laying environment inside high-rise buildings, and its flame-retardant property also adds a guarantee for the fire safety of high-rise buildings. In high-rise buildings, cables need to be laid in narrow spaces such as walls and floors. The structural design of this cable enables it to better adapt to such environments and ensure stable power transmission.

Municipal power grid transformation is an important part of urban development, involving the upgrading of power supply in various areas of the city. This cable is suitable for medium and high-voltage power transmission in municipal power grid transformation, and can meet the increasing power demand of the city. It can be seen in the cable laying of urban main roads and the power transformation of residential communities. Its durability and reliability can reduce the occurrence of power grid failures and improve the operation efficiency of the municipal power grid.

Chemical industrial parks are flammable and explosive environments, which have extremely strict requirements on the flame-retardant performance and safety of cables. The "Zr" flame-retardant property of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable enables it to play an important role in such environments, reducing the risk of fire caused by cable failures and ensuring the production safety of chemical industrial parks.

In densely populated places such as large shopping malls, the consequences of a fire are unimaginable. The flame-retardant property of this cable can inhibit the spread of flames in case of fire, buying time for personnel evacuation. At the same time, its stable power transmission performance can also ensure the normal operation of various equipment in the shopping mall, such as lighting and air conditioning, providing a safe and comfortable environment for customers.

Energy projects, such as power transmission in power plants and substations, have extremely high requirements for cable performance. This cable can adapt to high-voltage and large-current transmission scenarios in energy projects, and its excellent insulation performance and current-carrying capacity ensure efficient power transmission, providing reliable power guarantee for energy development and utilization.

The 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable fully considers various factors such as performance, cost and application scenarios in material selection and style design, making it have excellent comprehensive performance.

The conductor is made of high-purity aluminium material. High-purity aluminium ensures good electrical conductivity and can reduce losses during power transmission. Compared with Copper Conductors, aluminium conductors have the significant advantages of light weight and low cost. In large-scale power transmission projects, the amount of cables is usually large. The use of aluminium conductors can greatly reduce the overall cost, and the lighter weight also brings convenience to transportation and laying, reducing construction difficulty and cost.

The insulation layer is made of cross-linked polyethylene (XLPE), which has excellent electrical, mechanical and Chemical Resistance properties. After cross-linking treatment, its molecular structure forms a three-dimensional network structure, which greatly improves the heat resistance, aging resistance and mechanical strength of the material. Compared with traditional polyethylene Insulation Materials, the XLPE insulation layer has better stability in high-temperature environments, can operate safely at 90°C for a long time, and greatly expands the application range of the cable.

The steel tape armouring layer is made of cold-rolled steel tape. The cold-rolling process makes the steel tape have high strength and hardness, which can provide effective mechanical protection for the cable. The design of two interlocking layers further enhances the integrity and impact resistance of the armouring layer, ensuring that when subjected to external mechanical forces, it can effectively protect the internal conductors and insulation layers from damage.

The outer sheath is made of polyvinyl chloride (PVC). PVC material has good processing performance, chemical resistance and flame-retardant performance. By adding an appropriate amount of flame retardants, it has excellent flame-retardant properties and can inhibit the spread of flames in case of fire. At the same time, the PVC sheath also has good weather resistance, able to resist the erosion of natural factors such as sunlight, rain and oxygen, and extend the service life of the cable.

In terms of style, the cable adopts a circular structural design, which makes the force of the cable more uniform, and can better resist external pressure and tension during laying and use. At the same time, the circular structure is also convenient for the storage, transportation and laying of the cable, which can improve construction efficiency.

The production process of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable involves multiple complex process links, and each link needs to be strictly controlled to ensure the quality and performance of the product.

The production of the conductor first involves the selection of aluminium materials. High-purity aluminium ingots are used for smelting and casting to obtain aluminium rods. Then, the aluminium rod is drawn into an aluminium wire of the required diameter through a drawing process. During the drawing process, the drawing speed and tension need to be controlled to ensure the dimensional accuracy and mechanical properties of the aluminium wire. Next, multiple Aluminium Wires are stranded. The stranding process can improve the Flexibility and mechanical strength of the conductor, and at the same time, reduce the power loss caused by the skin effect by optimizing the stranding method and pitch. The Stranded Conductor needs to be annealed to eliminate internal stress generated during processing and improve the electrical conductivity and flexibility of the conductor.

The insulation layer is made by extrusion molding process. The cross-linked polyethylene material is heated and melted, then extruded onto the surface of the conductor through an extruder to form a uniform insulation layer. During the extrusion process, the extrusion temperature, speed and pressure need to be accurately controlled to ensure that the insulation layer has uniform thickness, smooth surface, and no defects such as bubbles and impurities. After extrusion, the insulation layer is cross-linked. According to different cross-linking methods, it can be divided into irradiation cross-linking and chemical cross-linking. Irradiation cross-linking uses high-energy electron beams generated by an electron accelerator to irradiate the insulation layer, causing molecular cross-linking reactions; chemical cross-linking adds cross-linking agents to the material, which undergo cross-linking reactions under heating conditions. Cross-linking treatment is a key link to ensure the performance of the XLPE insulation layer, and the degree of cross-linking needs to be strictly controlled to ensure that all properties of the insulation layer meet the design requirements.

The processing of the steel tape armouring layer first involves slitting the cold-rolled steel tape into steel tapes of the required width. Then, two layers of steel tapes are wrapped around the Insulated Wire core at a certain angle in an interlocking manner through an armouring machine. During the wrapping process, the wrapping tension and angle need to be controlled to ensure the tightness and uniformity of the armouring layer. The overlapping parts of the armouring layer need to be firmly bonded to ensure the integrity and impact resistance of the armouring layer.

The extrusion process of the sheath is similar to that of the insulation layer. The polyvinyl chloride material is heated and melted, then extruded onto the armouring layer through an extruder to form the outer sheath. During the extrusion process, flame retardants and other additives need to be added, and ensure that they are uniformly dispersed in the material to ensure the flame-retardant performance of the sheath. At the same time, the extrusion parameters should be controlled to ensure that the sheath has uniform thickness, smooth surface, and is tightly bonded to the armouring layer.

During the entire production process, multiple quality inspections are required. During the conductor production process, parameters such as the diameter, tensile strength, and elongation of the aluminium wire are tested; after the insulation layer is extruded, the insulation thickness, insulation resistance, breakdown field strength, etc. are tested; after armouring is completed, the thickness and adhesion of the armouring layer are tested; after the sheath is extruded, the sheath thickness, flame-retardant performance, weather resistance, etc. are tested. Only products that meet the requirements can leave the factory.

In addition, environmental control during the production process is also crucial. The workshop needs to be kept clean and dry, and the temperature and humidity are controlled within appropriate ranges to avoid dust, impurities, etc. affecting product quality. At the same time, production equipment needs to be regularly maintained and serviced to ensure its normal operation and improve production efficiency and the stability of product quality.

The packaging design of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable fully considers the product's protection, transportation and storage needs, and adopts a scientific and reasonable packaging method to ensure that the cable remains in good condition before reaching the user.

Cables are usually coiled on wooden or steel reels. Wooden reels are made of high-quality hardwood, which has high strength and toughness, and can withstand the weight of the cable and the impact force generated during transportation. Steel reels have higher strength and durability, suitable for long-distance transportation and packaging of large cables. The diameter and width of the reel are designed according to the length and diameter of the cable to ensure that the cable can be tightly and neatly wound on the reel, avoiding loosening and mutual friction during transportation.

After the cable is wound, a layer of plastic film is wrapped on its surface. The plastic film has good moisture-proof and dust-proof properties, which can protect the cable sheath from pollution and damage. For cables that need to be stored for a long time or transported in harsh environments, a layer of linen or woven bag is wrapped outside the plastic film to further enhance the protection effect and prevent the cable from being exposed to direct sunlight, rain, etc.

Each packaging reel is equipped with a solid wooden or metal baffle. The function of the baffle is to prevent the cable from slipping off the reel during transportation and handling, and also to protect the end of the cable from damage. The baffle will clearly mark the product's model, specification, length, weight, manufacturer, production date and other information, which is convenient for users to identify and accept.

For export products, the packaging also needs to meet international transportation standards and the import requirements of relevant countries. Fumigated wooden reels may be used to prevent the spread of pests and diseases in the wood. At the same time, corresponding marks and labels, such as moisture-proof marks, upward marks, center of gravity marks, etc., will be pasted on the packaging to ensure the safety and smoothness of the transportation process.

The transportation of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable needs to follow strict regulations and procedures to ensure that the cable is not damaged during transportation and reaches the destination safely.

Before transportation, the cable packaging needs to be carefully inspected to ensure that the packaging is intact, firm, and the marks are clear. For large cable reels, forklifts or cranes need to be used for loading and unloading. During the loading and unloading process, attention should be paid to operating specifications to avoid collision and extrusion, and prevent the cable reel from deforming or the cable from being damaged.

During transportation, the cable should be placed horizontally or vertically, and must not be inverted. For long-distance transportation, the cable reel needs to be fixed on the transport vehicle with ropes to prevent the cable reel from moving or slipping due to bumps, turns, etc. during driving. At the same time, the cable should be protected from direct sunlight, rain and exposure. If necessary, a tarpaulin can be used for covering.

The choice of transport vehicle is also important. A suitable vehicle, such as a truck or semi-trailer, should be selected according to the weight, length and transportation distance of the cable. During transportation, traffic rules should be observed, and operations such as sudden braking and sharp turns should be avoided to reduce the impact on the cable.

For international transportation, it is also necessary to consider the choice of transportation methods, such as sea freight, land freight or air freight. Sea freight is suitable for long-distance transportation of large quantities of cables, but the transportation time is longer, and moisture-proof and anti-corrosion treatments need to be done; land freight has high flexibility and is suitable for medium and short-distance transportation; air freight is fast but costly, suitable for small quantities of cables in emergency situations. At the same time, relevant transportation procedures and customs declaration documents need to be handled to ensure that the goods can pass customs smoothly.

During transportation, transportation records should be kept, including transportation time, location, weather conditions, vehicle status, etc., so that problems can be traced and handled in a timely manner when they occur.

The delivery process of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable is rigorous and standardized, aiming to ensure that the products can be accurately and timely delivered to customers.

First, after receiving the customer's order, the sales staff will communicate with the production department and the warehouse department to confirm the product inventory and production progress. If there is stock, the warehouse department will prepare the goods according to the order requirements, check the product's model, specification, quantity, etc., to ensure consistency with the order. If there is no stock, the production department will be arranged to organize production as soon as possible to ensure that production is completed within the agreed delivery period.

After the goods are prepared, the quality inspection department will re-inspect the products, check whether the product's appearance, packaging, marks and various performance indicators meet the requirements, and only qualified products can be shipped.

Before delivery, the sales staff will confirm the delivery information with the customer, including the delivery address, consignee, contact number, transportation method, etc., to ensure that the information is accurate. At the same time, relevant product materials, such as product certificate, test report, instruction manual, etc., will be provided to the customer.

According to the customer's requirements and actual situation, a suitable logistics company is selected for transportation. A transportation contract is signed with the logistics company to clarify the rights and obligations of both parties, including transportation time, transportation cost, cargo insurance and other matters. After the goods are delivered to the logistics company,

timely feedback of logistics information is given to the customer to facilitate the customer to track the transportation status of the goods.

After the delivery is completed, the warehouse department will keep delivery records and update inventory information. The sales staff will communicate with the customer regularly to understand the receipt of the goods and ensure that the customer receives the goods smoothly. If the customer finds problems during the receipt process, such as damaged goods or inconsistent quantity, the sales staff will coordinate and handle them in a timely manner to ensure the customer's rights and interests are protected.

To allow customers to better understand the quality and performance of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable, the manufacturer provides sample services so that customers can test and evaluate before bulk purchasing.

Customers can apply for samples from the manufacturer by phone, email, online platform, etc. When applying, detailed customer information and requirements need to be provided, such as company name, contact person, contact number, model, specification, quantity of the required samples, etc. The manufacturer will review the application within 1-3 working days after receiving it, and arrange the preparation of samples after approval.

The production process of samples is the same as that of mass-produced products, strictly in accordance with production processes and quality standards to ensure that the quality and performance of samples are consistent with mass-produced products. The length of samples is usually 1-5 meters, and the specific length can be adjusted according to customer needs.

The packaging of samples is similar to that of mass-produced products but more compact and delicate, usually using cartons or wooden boxes for packaging, with foam or soft materials filled inside to prevent samples from being damaged during transportation. The model, specification, manufacturer and other information of the samples will be marked on the packaging.

Samples are usually transported by express. The manufacturer will choose a reputable express company to ensure that the samples can be delivered to customers quickly and safely. For domestic customers, samples are usually delivered within 3-5 working days; for international customers, the time varies according to the transportation distance and customs clearance situation, generally within 7-15 working days.

After receiving the samples, customers can conduct various performance tests, such as insulation resistance test, voltage resistance test, flame retardant performance test, mechanical performance test, etc. If customers have any questions or suggestions about the quality and performance of the samples, the manufacturer will arrange professional technical personnel to answer and communicate, and make adjustments and improvements according to customer feedback.

The after-sales service system of the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable is perfect, aiming to provide customers with comprehensive support and protection and solve problems encountered by customers during use.

The product warranty period is 18 months from the date of delivery. During the warranty period, if the product has quality problems caused by non-human factors, such as aging of the insulation layer, conductor breakage, sheath cracking, etc., the manufacturer will provide free repair or replacement services for the customer. Customers need to provide purchase vouchers and detailed descriptions and pictures of the problems with the product. The manufacturer will respond within 24 hours after receiving the information and arrange technical personnel to evaluate and handle it.

The manufacturer has a professional technical team to provide customers with technical support services. Customers can consult the manufacturer at any time when encountering any technical problems in the process of cable selection, laying, installation and use. Technical personnel will provide solutions through phone, email, video conference and other means, and can also arrange on-site guidance if necessary.

In addition, the manufacturer regularly conducts return visits to customers to understand the use of the products and collect customer opinions and suggestions. Based on customer feedback, the manufacturer continuously improves product quality and service levels to better meet customer needs.

If customers need to replace or repair products beyond the warranty period, the manufacturer will also provide paid services, and the fees will be charged reasonably according to the actual situation. At the same time, the manufacturer provides a long-term supply of spare parts to ensure that customers can obtain necessary accessories in a timely manner during the use of the product.

The after-sales service hotline is available 24 hours a day, and customers can call at any time to consult and report problems. The manufacturer's after-sales service personnel will respond quickly and handle customer problems efficiently to ensure customer satisfaction.

In summary, the 4X150mm Yjlv22 Zr-Yjlv22 aluminium core cable, with its excellent performance, reasonable structure, wide range of applications and perfect after-sales service, has become a reliable choice in the field of power transmission. Whether in industrial production, urban construction or energy development, it can play an important role, providing strong support for the stable operation of the power system.