I. From the Perspective of the Product Itself
(1) Specification Parameters
The specification parameters of the 16mm²/25mm² aluminum core polyvinyl chloride insulated
Power Cable (BLV) are important reflections of its performance and applicable scenarios. Each parameter has been carefully designed and strictly tested to ensure that the cable can operate stably and efficiently in low-voltage main lines.
The cross-sectional area of the conductor is one of the core specification parameters of the cable. The difference between 16mm² and 25mm² directly determines the current-carrying capacity of the cable. When the ambient temperature is 25℃, the continuous current-carrying capacity of the 16mm² cable is about 85A; while under the same ambient temperature, the continuous current-carrying capacity of the 25mm² cable can reach 110A. This parameter difference enables the two specifications of cables to adapt to different power load scenarios. The 16mm² cable is suitable for medium-load low-voltage main lines, such as the main distribution lines of some small residential quarters and the power transmission of small commercial places; the 25mm² cable is more suitable for scenarios with larger loads, such as the main distribution lines of large residential areas and the low-voltage power main lines of small and medium-sized factories.
The conductor is made of high-purity aluminum material with a purity of more than 99.5%. High-purity aluminum can ensure good electrical conductivity, and its resistivity is about 0.0282Ω·mm²/m at 20℃. At the same time, the
Aluminum Conductor has undergone special processing, such as annealing treatment, to improve its
Flexibility and mechanical strength, so that the cable is not easy to break during laying and use.
The insulation layer is made of polyvinyl chloride (PVC) material, and its thickness varies according to the cable specifications. The thickness of the insulation layer of the 16mm² cable is about 1.4mm, and that of the 25mm² cable is about 1.6mm. The temperature resistance of the insulation layer is also an important parameter. The
PVC Insulation layer can work normally in the ambient temperature range of -15℃ to 70℃. In case of a short circuit, the maximum temperature can reach 160℃ for no more than 5 seconds. In addition, the dielectric strength of the insulation layer is not less than 18kV/mm, which can effectively isolate the current and ensure the insulation performance of the cable.
The outer diameter of the cable is also a key specification parameter. The outer diameter of the 16mm² cable is about 8.5mm, and that of the 25mm² cable is about 10.2mm. This parameter is of great significance for the laying and installation of the cable, as it determines the space required for the cable in laying methods such as pipe threading and underground burial.
The weight of the cable also varies with specifications. The weight of the 16mm² cable per kilometer is about 150kg, and that of the 25mm² cable per kilometer is about 210kg. The light weight makes the cable more convenient in transportation and laying, which can reduce construction costs and difficulties.
(2) Characteristic Uses
With its unique performance advantages, the 16mm²/25mm² aluminum core polyvinyl chloride
Insulated Power cable (BLV) has a wide range of applications in low-voltage main lines in various fields, showing rich characteristic uses.
In the field of civil construction, this cable is an important part of the low-voltage power distribution system in residential quarters. For some medium-sized residential quarters, the 16mm² cable can be used as the main line between buildings, transmitting power from the distribution room to the distribution boxes of each building, to meet the electricity needs of residents in daily life, such as the normal operation of household appliances and lighting. For large residential quarters, due to the large power load, the 25mm² cable is more applicable. It can bear the power load of more residents and ensure the stable and reliable power supply of the entire community.
In the industrial field, this cable is suitable for low-voltage power main lines in small and medium-sized factories. Various production equipment in the factory, such as lathes, milling machines, blowers, etc., need to be driven by electricity. The 16mm² and 25mm² cables can be reasonably selected according to the power and quantity of the equipment, transmitting power from the general distribution room of the factory to the distribution boxes of each production workshop, providing stable power support for the production equipment and ensuring the smooth progress of production work.
In the field of municipal engineering, this cable also plays an important role. For example, in the lighting system of urban roads, the 16mm² cable can be used as a low-voltage main line to transmit power to the street lamps on both sides of the road, ensuring road lighting at night; in the power supply of public places such as urban parks and squares, this cable can also meet the needs of various electrical equipment, such as landscape lamps and fountain equipment.
In addition, this cable also has certain applications in the agricultural field. In some large-scale farmland irrigation systems, electric power is needed to drive equipment such as water pumps. The 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) can be used as a low-voltage main line to transmit power from the power source to the irrigation equipment, ensuring the normal operation of irrigation work and providing power guarantee for agricultural production.
(3) Material and Style
Material
The material selection of the cable is the basis of its performance. Each material is strictly screened to ensure the quality and reliability of the cable.
The
Conductor Material is high-purity aluminum. As a common conductive material, aluminum has the characteristics of abundant resources and low cost. Compared with copper, aluminum is cheaper, which can effectively reduce the production cost of the cable. At the same time, high-purity aluminum has good electrical conductivity, which can meet the power transmission needs of low-voltage main lines.
The insulation layer is made of polyvinyl chloride (PVC). PVC is a commonly used
Insulation Material with excellent insulation performance, which can effectively isolate the current and prevent electric leakage accidents. In addition, PVC also has good corrosion resistance, weather resistance and mechanical strength, which can protect the internal conductor from the influence of the external environment, such as humidity, dust, chemicals, etc., and prolong the service life of the cable. PVC material also has good processing performance, which is convenient for extrusion molding and other processing technologies, and can ensure the uniformity and stability of the insulation layer.
Style
The 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) is mainly in the style of a single-
Core Cable. The structure of the
Single-Core Cable is relatively simple, consisting of an aluminum conductor and an outer PVC insulation layer. This style of cable has the characteristics of convenient laying and high flexibility, and can adapt to different laying environments and methods, such as overhead laying, underground laying, pipe threading laying, etc.
The design of the single-core cable enables it to have low loss in the process of power transmission, which can improve the power transmission efficiency. At the same time, the single-core cable has good heat dissipation performance, which is beneficial to the heat dissipation of the cable during long-term operation and avoids affecting the performance and service life of the cable due to overheating.
(4) Production Process
The production process of the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) is the key to ensuring its quality and performance. The entire production process is carried out in strict accordance with relevant standards and specifications, covering all links from raw material processing to finished product inspection.
The first is the production process of the conductor. After smelting, aluminum ingots are made into aluminum rods through continuous casting process. The aluminum rod is drawn into
Aluminum Wires with the required diameter through multiple drawing processes on a wire drawing machine. During the drawing process, the
Aluminum Wire will be subjected to a certain tension and friction. In order to improve the flexibility and mechanical strength of the aluminum wire, it needs to be annealed. Annealing is usually carried out in an annealing furnace. By controlling the temperature and time, the internal structure of the aluminum wire is changed to improve its performance.
Next is the extrusion process of the insulation layer. The treated aluminum conductor is used as the core wire and sent into the extruder. At the same time, PVC particles are added into the hopper of the extruder. After being heated and melted, they are evenly wrapped around the outer layer of the aluminum conductor through an extrusion die to form an insulation layer. During the extrusion process, it is necessary to strictly control parameters such as extrusion temperature and extrusion speed to ensure that the insulation layer has uniform thickness, smooth surface and good bonding force with the conductor.
The extruded cable also needs to be cooled, usually by water cooling, so that the insulation layer can be quickly cooled and solidified to maintain its shape and performance. After cooling, the cable needs to undergo a spark test to detect whether there are defects such as pinholes in the insulation layer, so as to ensure that the insulation performance meets the requirements.
Then is the cable traction and take-up process. The cable that has passed the spark test is pulled to the take-up machine and wound into a cable roll according to a certain length. During the traction process, it is necessary to control the traction speed to ensure that the cable is not damaged by excessive stretching.
Finally, it is the finished product inspection process. The produced cables are tested for various performance indicators, including the DC resistance of the conductor, the thickness of the insulation layer, dielectric strength, temperature resistance, etc. Only cables that meet relevant standards and specifications in all indicators can be delivered as finished products.
II. From the Perspective of General Product Information
(1) Packaging
The packaging design of the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) fully considers the needs of protecting the cable, facilitating transportation and storage, and adopts a scientific and reasonable packaging method to ensure that the cable is not damaged during transportation and storage.
Cables are usually packaged with cable reels, which are of two types: wooden cable reels and steel cable reels. For 16mm² and 25mm² cables, appropriate specifications of cable reels are selected according to their length and weight. Generally speaking, the length of each reel of cable is 100 meters, 200 meters or 500 meters, etc. The specific length can be customized according to customer needs.
In the process of cable reel packaging, first, the cable is neatly wound on the cable reel. During the winding process, the tension of the cable must be uniform to avoid twisting and knotting of the cable. Then, the outer layer of the cable is wrapped with a plastic film to prevent the cable from being polluted by dust, moisture, etc. For wooden cable reels, in order to enhance their strength and stability, metal parts are usually added to the edge and center of the cable reel.
The cable reel is also marked with relevant product information, such as the model, specification, length, production date, manufacturer of the cable, etc., to facilitate customer identification and acceptance. At the same time, to ensure safety during transportation, the cable reel is fixed with strong packing belts to prevent the cable from falling off the cable reel during transportation.
In addition, for small batches of cables, they can also be packaged in coils. The cable is wound into a coil with a diameter of about 50cm and wrapped with a plastic film, which is convenient for handling and storage.
(2) Transportation
The transportation process of the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) needs to strictly abide by relevant transportation regulations and requirements to ensure the quality and safety of the cable.
Before transportation, it is necessary to check the packaging of the cable to ensure that the packaging is intact and the cable reel is fixed firmly. For cables packaged with cable reels, special hoisting equipment such as cranes and forklifts should be used during loading and unloading to avoid collision and damage to the cable reels. When hoisting, the slings should be fixed on both sides of the cable reel to keep the cable reel balanced and prevent the cable reel from tilting or falling.
During transportation, the cable should avoid direct sunlight, rain and exposure to prevent aging and damage of the insulation layer. At the same time, the cable should be kept away from heat sources and corrosive substances to avoid damage to the cable by high temperature and chemical substances. The transport vehicle should drive smoothly, avoiding sudden braking and sharp turns to prevent the cable from sliding and colliding in the vehicle.
For cables transported over long distances, the packaging and condition of the cable should be checked regularly, and problems should be dealt with in a timely manner. After arriving at the destination, the cable should be unloaded to a flat, dry and ventilated site to avoid extrusion and damage to the cable.
In addition, traffic rules should be observed during transportation, and relevant transportation procedures should be handled to ensure the legality and safety of the transportation process.
(3) Delivery
The delivery process of the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) is rigorous and standardized to ensure that the goods can be delivered to customers in a timely and accurate manner.
After a customer places an order, the salesperson will communicate with the customer in a timely manner to confirm the cable model, specification, quantity, delivery date, delivery location and other information, and feed this information back to the production department and the warehousing department. The production department organizes production according to the order requirements to ensure that the production task is completed within the specified delivery period.
After receiving the finished cables from the production department, the warehousing department will inspect the cables to check whether the model, specification, quantity and quality of the cables meet the order requirements. After passing the inspection, the cables are stored in the designated warehouse, and inventory records are made.
Before delivery, the warehousing department will prepare the goods according to the order requirements, arrange transport vehicles, and sign a transport contract with the transport company to clarify the rights and obligations of both parties. At the same time, the warehousing department will send relevant information of the cable, such as product certificate and inspection report, along with the goods for customer acceptance.
When delivering the goods, the warehousing department will recheck the goods to ensure that the packaging is intact and the relevant documents are complete. Then, the goods are loaded onto the transport vehicle, and the handover procedures are handled with the transport driver to record the quantity and status of the goods.
After delivery, the salesperson will promptly inform the customer of the delivery information, including the license plate number of the transport vehicle, the driver's contact information, the estimated arrival time, etc., so that the customer can prepare for receipt. At the same time, the salesperson will track the transportation of the goods and deal with problems arising during transportation in a timely manner to ensure that the goods can be delivered on time.
(4) Samples
In order to allow customers to better understand the performance and quality of the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV), the company provides sample services, and customers can apply for free or paid samples.
When applying for samples, customers can contact the salesperson through the company's official website, phone, email, etc., and specify the model, specification, quantity and other information of the required samples. The salesperson will reply to the customer in a timely manner to confirm the relevant information of the sample and the application process.
For free samples, there is usually a certain quantity limit, generally 1-2 meters. Customers need to provide detailed receiving address and contact information, and the company will send out the samples within 1-3 working days after receiving the application. For paid samples, customers need to pay the sample fee and freight. The company will provide samples of the corresponding length according to the customer's requirements and ensure that the quality and performance of the samples are consistent with the bulk products.
After the sample is sent out, the salesperson will promptly inform the customer of the express tracking number of the sample so that the customer can track the logistics information of the sample. After receiving the sample, the customer can inspect and test the sample, such as checking the appearance, measuring the size, testing the conductivity and insulation performance, etc. If the customer is satisfied with the sample, they can further negotiate bulk purchase matters; if the customer has any questions or suggestions about the sample, the salesperson will answer and handle them in a timely manner.
(5) After-sales Service
The company provides perfect after-sales service for the 16mm²/25mm² aluminum core polyvinyl chloride insulated power cable (BLV) to protect the legitimate rights and interests of customers and improve customer satisfaction.
In terms of product quality assurance, the company promises that the produced cables meet relevant national standards and industry specifications, and the product quality guarantee period is 12 months from the date of delivery. During the quality guarantee period, if the cable is damaged or has performance failures due to its own quality problems, the company will provide free repair or replacement services for customers.
Customers can contact the after-sales service department at any time through the company's official website, phone, email, etc. if they encounter any problems during use. After-sales service personnel will reply within 24 hours after receiving customer feedback and provide solutions according to the specific situation of the problem.
For problems that need on-site handling, after-sales service personnel will arrive at the site within the time agreed with the customer to inspect and repair. During the maintenance process, after-sales service personnel will explain the cause of the problem and the handling method to the customer in detail to ensure that the customer understands the situation.
In addition, the company will also conduct regular return visits to customers to understand the use of the cable and customer needs, and provide customers with necessary technical support and services. Through a sound after-sales service system, the company is committed to providing customers with high-quality and reliable products and services, and establishing a good brand image.
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