I. From the Perspective of the Product Itself
(1) Specification Parameters
The specification parameters of Blv 6mm²-25mm² aluminum conductor
PVC insulated power cables are the basis for their performance and application. Each parameter is carefully designed to meet the strict requirements of residential
Building Wiring.
The conductor cross-sectional specifications of this series of cables range from 6mm² to 25mm², which is accurately determined according to the load requirements of different electrical scenarios in residential buildings. The 6mm² cable has a conductor diameter of approximately 2.76mm, and its DC resistance at room temperature is no more than 3.08Ω/km. It can meet the power supply needs of general room lighting and small household appliances (such as TVs, computers, desk lamps, etc.). These devices have relatively low power and do not require high current carrying capacity, so the 6mm² cable is sufficient for stable power transmission.
The 10mm² cable has a conductor diameter of about 3.58mm and a DC resistance of no more than 1.83Ω/km. It is suitable for power supply of appliances with slightly higher power, such as wall-mounted air conditioners and electric irons. The power of such appliances is usually between 1000W and 2000W, and the 10mm² cable can easily handle their current load.
The 16mm² cable has a conductor diameter of approximately 4.51mm and a DC resistance of no more than 1.15Ω/km. It can be used for power supply of high-power appliances such as cabinet air conditioners and electric water heaters. The power of these appliances is often between 2000W and 3000W. The 16mm² cable can ensure stable power transmission and avoid problems such as overheating due to excessive current.
The 25mm² cable has a conductor diameter of about 5.64mm and a DC resistance of no more than 0.727Ω/km. It can cope with scenarios requiring large current carrying in residential buildings, such as main incoming lines and clusters of high-power kitchen appliances. The main incoming line needs to carry the electrical load of the entire residence, and when kitchen appliances such as ovens, microwave ovens, and dishwashers work at the same time, the current load is large. The 25mm² cable, with its excellent conductivity and current-carrying capacity, can ensure the safe and stable supply of electricity.
In terms of rated voltage, the cable is designed to be 450/750V, where 450V is the rated working voltage of the cable and 750V is the rated insulation voltage of the cable. This design fully complies with the standards of residential low-voltage distribution systems. Residential electricity is usually 220V single-phase electricity. The rated voltage of 450/750V can not only meet daily electricity needs but also leave a certain safety margin to cope with special situations such as voltage fluctuations. For example, during peak electricity consumption periods, there may be a brief increase in voltage. At this time, the rated insulation voltage of the cable can play a protective role, ensuring that the cable will not age or be damaged due to voltage problems during long-term use.
In addition, the insulation thickness of the cable varies with specifications. The insulation thickness of the 6mm² cable is 0.8mm, that of the 10mm² and 16mm² cables is 1.0mm, and that of the 25mm² cable is 1.2mm. This design is to ensure that the insulation layer can effectively block the current and prevent electric leakage accidents under different conductor cross-sections. At the same time, the outer diameter of the cable increases with the increase of specifications. The outer diameter of the 6mm² cable is about 5.1mm, that of the 10mm² is about 6.2mm, that of the 16mm is about 7.5mm, and that of the 25mm² is about 9.2mm, which also provides reference data for the laying and installation of the cable.
In terms of temperature, the long-term allowable operating temperature of the cable is 70℃, and the maximum temperature during a short circuit (with a maximum duration of no more than 5 seconds) does not exceed 160℃. This parameter determines the stability of the cable under different working conditions. During normal use, the temperature of the cable will not exceed 70℃, ensuring that its insulation performance is not affected; in special cases such as a short circuit, the brief high temperature will not cause permanent damage to the cable, buying time for fault handling.
(2) Characteristic Uses
Blv 6mm²-25mm² aluminum conductor PVC insulated
Power Cables have a wide range of distinctive uses in residential building wiring due to their unique performance.
In the lighting system of ordinary residences, the 6mm² cable is an ideal choice. The lighting fixtures in areas such as living rooms, bedrooms, and studies in residences, such as chandeliers, ceiling lamps, and spotlights, generally have low power, with a total power usually within a few hundred watts. The 6mm² cable can stably supply power to these fixtures, ensuring the normal operation of lighting. At the same time, since lighting lines are usually distributed in ceilings or walls, the wiring space is relatively narrow. The 6mm² cable, with its small outer diameter and light weight, is easy to lay in these complex wiring environments.
For the power supply circuits of small household appliances in residences, the 6mm² cable is also applicable. Small household appliances such as TVs, computers, routers, electric fans, and humidifiers usually have power ranging from tens of watts to hundreds of watts. They are scattered in various corners of the residence and require independent power supply circuits. The 6mm² cable can meet the power transmission needs of these circuits, and its good insulation performance can effectively prevent electric leakage, ensuring the safety of users when using these appliances.
The 10mm² cable is mainly used for power supply of appliances with higher power, such as wall-mounted air conditioners. The power of wall-mounted air conditioners is generally between 1.5 horsepower and 2 horsepower, corresponding to a power of about 1100W-1500W. The current during operation is relatively large, and the current-carrying capacity of the 10mm² cable can meet its needs, ensuring that the air conditioner will not shut down or malfunction due to cable problems during cooling or heating. In addition, appliances used seasonally such as electric irons and electric heaters also have high power, and using 10mm² cables for power supply can ensure their safe and stable operation.
The 16mm² cable is often used in residences for power supply of high-power appliances such as cabinet air conditioners and electric water heaters. The power of cabinet air conditioners is usually more than 2 horsepower, and some even reach 3 or 4 horsepower, with power up to 2000W-3000W; the power of electric water heaters is also mostly between 1500W-3000W. These appliances require continuous large current supply during operation, and the 16mm² cable can carry such current loads, avoiding safety accidents such as fires caused by cable overload.
The characteristic use of the 25mm² cable is reflected in the power supply of the main incoming line of the residence and the cluster of high-power kitchen appliances. The main incoming line of the residence is a key line connecting the external power grid and the internal electrical system of the residence, and it needs to carry the electrical load of the entire residence. Especially when multiple appliances are working at the same time, the current will increase significantly. The 25mm² cable, with its large cross-section and high current-carrying capacity, can ensure the smooth input of electricity. In the kitchen, appliances such as ovens, microwave ovens, dishwashers, and disinfection cabinets are often used intensively, with a total power of up to several kilowatts. The 25mm² cable can provide stable power support for these appliance clusters, ensuring the normal operation of kitchen appliances.
In addition, the cable can also be used for wiring in some special areas of residences, such as electric clothes dryers on balconies and smart curtain systems. Although these devices do not have particularly high power, they require long-term stable power supply, and their installation positions may be special. For example, balconies may have a humid environment. The
PVC Insulation layer of the cable has good corrosion resistance and weather resistance, which can adapt to these environments and ensure the normal operation of the devices.
(3) Material and Style
Blv 6mm²-25mm² aluminum conductor PVC insulated
Power Cables fully consider performance, practicality, and economy in material selection and style design.
In terms of materials, the conductor is made of high-purity aluminum. Aluminum, as an excellent conductive material, has the characteristics of abundant resources and low cost. Compared with copper, aluminum has a smaller density and lighter weight, which makes the cable more convenient in transportation and installation, and can reduce construction difficulty and labor costs. At the same time, the aluminum used in the cable has undergone special treatment and has high purity, reducing the impact of impurities on conductivity and ensuring good conductivity. Although the conductivity of aluminum is slightly lower than that of copper, it can fully meet the needs within the electrical load range of residential buildings, and its price advantage reduces the overall cost of the cable, saving expenses for developers and owners.
The insulation layer is made of polyvinyl chloride (PVC) material. PVC is a commonly used
Insulation Material with excellent insulation performance, which can effectively block current, prevent electric leakage accidents, and ensure the electrical safety of residents. In addition, PVC also has good corrosion resistance and weather resistance, which can resist factors such as humidity and slight chemical erosion that may exist in the residential environment, extending the service life of the cable. It has high mechanical strength and is not easy to be damaged by operations such as stretching and bending during wiring, adapting to the complex wiring environment in residential buildings.
In terms of style, the cable is usually of a single-core structure, with a PVC insulation layer wrapped around the outer layer. The insulation layer comes in various colors, commonly black, gray, white, etc. Cables of different colors are convenient for identifying and distinguishing different circuits during wiring, such as lighting circuits, socket circuits, air conditioning circuits, etc., reducing construction errors. The surface of the cable is smooth, which not only helps reduce friction resistance during pipe laying but also prevents scratches by sharp objects during transportation and installation, protecting the integrity of the insulation layer.
In addition, to improve the safety and stability of the cable, some models of cables will add a sheath outside the insulation layer. However, for the Blv series cables, in the general environment of residential building wiring, the PVC insulation layer can meet the needs. The single-core and sheathless style is more conducive to cost saving and reducing the outer diameter, facilitating laying in narrow spaces.
(4) Production Process
The production process of Blv 6mm²-25mm² aluminum conductor PVC
Insulated Power cables is rigorous and meticulous, with each link strictly controlled to ensure the quality and performance of the product.
The first step is the preparation of the aluminum conductor. High-purity aluminum ingots are selected as raw materials, and aluminum rods are obtained through smelting, ingot casting, and other processes. The aluminum rods are drawn on a wire drawing machine, and through dies of different specifications, the aluminum rods are drawn into
Aluminum Wires of the required diameter. During the wire drawing process, the drawing speed and temperature need to be controlled to ensure the dimensional accuracy and mechanical properties of the
Aluminum Wires. The drawn aluminum wires also need to undergo annealing treatment to eliminate internal stress generated during the drawing process and improve the
Flexibility and conductivity of the aluminum wires. After annealing, the aluminum wires go through the stranding process, where multiple aluminum wires are stranded together to form an aluminum conductor with the required cross-section. During the stranding process, the aluminum wires must be arranged neatly and tightly combined to improve the conductivity and mechanical strength of the conductor.
Next is the extrusion molding of the insulation layer. Polyvinyl chloride (PVC) granular raw materials are added to the extruder and heated and melted to form a molten PVC melt. Then, the prepared aluminum conductor is passed through the die head of the extruder, and at the same time, the PVC melt is evenly extruded and wrapped around the outer layer of the aluminum conductor to form the insulation layer. During the extrusion process, the extrusion temperature, extrusion speed, and die size need to be accurately controlled to ensure that the insulation layer has a uniform thickness, a smooth surface, and is tightly combined with the conductor without defects such as bubbles and impurities. The thickness of the insulation layer varies with the specifications of the cable. For example, the insulation layer thickness of the 6mm² cable is 0.8mm, and that of the 25mm² cable is 1.2mm, which is achieved by replacing different dies.
The cable after extrusion molding needs to be cooled, usually by water cooling, to quickly cool and solidify the insulation layer for stable shaping. The cooled cable is tested by a spark tester, and through high-voltage electrical testing, it is checked whether the insulation layer has defects such as pinholes and damage to ensure that the insulation performance meets the requirements. If defective cables are found, they need to be marked and repaired or scrapped.
Subsequently, the cable enters the traction and take-up process. The traction machine pulls the cable at a constant speed to ensure uniform tension of the cable, avoiding the cable being stretched or damaged due to excessive tension. The take-up machine neatly winds the cable on the cable reel for transportation and storage. During the take-up process, the take-up speed and tension must be controlled to ensure that the cable is tightly arranged on the cable reel without looseness.
During the production process, sampling tests on various properties of the cable are also required, such as the DC resistance of the conductor, the thickness of the insulation layer, voltage resistance performance, mechanical performance, etc., to ensure that the product meets relevant standards and technical requirements. For unqualified products, the reasons must be analyzed in a timely manner, and corresponding measures must be taken for rectification until the products are qualified.
In addition, the environment of the production workshop has strict requirements. The workshop must be kept clean and hygienic to avoid pollution of the cable by dust, impurities, etc. At the same time, production equipment must be regularly maintained to ensure the normal operation of the equipment, improve production efficiency and product quality.
II. From the Perspective of General Product Information
(1) Packaging
The packaging design of Blv 6mm²-25mm² aluminum conductor PVC insulated power cables takes into account both product protection and the convenience of transportation and storage.
Cables are usually packaged using cable reels, which are available in wooden and iron types. For small-specification and short-length cables, wooden cable reels are generally used. Wooden cable reels are light in weight, low in cost, and easy to handle and disassemble. The structure of the wooden cable reel is firm, which can bear the weight of the cable and prevent the cable reel from being deformed or damaged during transportation and storage. For large-specification and long-length cables, iron cable reels are mostly used. Iron cable reels have higher strength and bearing capacity, which can better protect the cable, especially suitable for long-distance transportation and multiple turnovers.
When the cable is wound on the cable reel, it must be arranged neatly and tightly to avoid mutual winding, squeezing, or wear of the cable. The outer layer of the cable is wrapped with a plastic film, which can play a role in moisture-proof and dust-proof, protecting the insulation layer of the cable from pollution and damage by the external environment. For some orders with special requirements, a layer of linen or woven bag can be wrapped outside the plastic film to further enhance the protection of the cable.
On the side of the cable reel, relevant product information will be marked, such as product name, model specification, length, rated voltage, production date, manufacturer, etc. This information is convenient for users to identify and accept the product. At the same time, a solid wooden box or metal frame will be installed on the cable reel to prevent the cable reel from rolling or colliding during transportation, ensuring the safety of the cable.
In addition, the packaging also considers environmental protection requirements. The wooden cable reels used have undergone fumigation treatment, meeting the quarantine standards for international transportation to avoid carrying pests. Packaging materials such as plastic films also try to choose recyclable or degradable materials to reduce environmental pollution.
(2) Transportation
The transportation of Blv 6mm²-25mm² aluminum conductor PVC insulated power cables must strictly abide by relevant regulations to ensure that the products are not damaged during transportation and arrive at the destination safely.
In terms of transportation methods, according to different transportation distances and quantities, road transportation, railway transportation, or water transportation can be chosen. Road transportation has high flexibility and is suitable for short-distance transportation and small batches of goods, which can directly deliver the cables to the construction site or designated location. Railway transportation is suitable for long-distance transportation and large quantities of goods, with relatively low transportation costs, stable transportation process, and less affected by weather. Water transportation is suitable for long-distance transportation of bulk goods, especially for export products, water transportation is a commonly used method.
During transportation, attention must be paid to the protection of the cable. When the cable reel is loaded into the transport vehicle or container, it must be fixed firmly to prevent rolling, collision, or tipping during transportation. Steel wire ropes, chains, etc. can be used to fix the cable reel on the transport tool to ensure its stability. At the same time, the cable reel should be avoided from direct sunlight, rain, and snow coverage to prevent the insulation layer of the cable from aging and being damaged due to temperature changes or moisture. In high-temperature summer, transport vehicles can take sunshade measures; in rainy or snowy days, the cable should be covered to keep it dry.
During transportation, the cable should be avoided from severe vibration and impact, which may cause problems such as conductor breakage and insulation layer damage of the cable. Therefore, transport vehicles must abide by traffic rules during driving, drive smoothly, and avoid sudden braking, sharp turns, and other operations. For cables transported over long distances, the condition of the cable should be checked regularly, and problems should be handled in a timely manner.
When loading and unloading cables, professional lifting equipment such as cranes and forklifts must be used. It is strictly forbidden to manually drag or roll the cable reels at will to avoid damage to the cables or casualties. During the loading and unloading process, it is necessary to lift and place the cable reels gently to ensure that they are placed stably on the transport tool or the ground.
(3) Shipment
The shipment process of Blv 6mm²-25mm² aluminum conductor PVC insulated power cables is standardized and orderly to ensure that the products can be delivered to customers in a timely and accurate manner.
After a customer places an order, the sales staff will communicate with the production department in a timely manner to confirm the inventory status or production progress of the product. If there is stock, the shipment will be arranged as soon as possible; if production is required, the delivery time will be promised to the customer according to the production cycle, and the production progress will be followed up in a timely manner to ensure shipment on time.
Before shipment, warehouse managers will conduct strict inspections on the products, check whether the model specifications, length, quantity and other information of the products are consistent with the order, inspect whether the packaging of the cables is intact, and ensure that the products have no quality problems and appearance damage. At the same time, relevant documents will be prepared, such as product certificates, inspection reports, packing lists, invoices, etc. These documents will be sent together with the goods to facilitate customers' acceptance and handling of relevant procedures.
When shipping, warehouse managers will connect with the transportation company or logistics company, provide detailed receiving address, contact person, contact number and other information, and clarify the transportation requirements and delivery time. The transportation company will arrange appropriate transport vehicles and routes according to the situation of the goods, and sign a transportation contract to clarify the responsibilities and obligations of both parties.
After the goods are shipped, the sales staff will promptly inform the customer of the shipment information, including the name of the transportation company, license plate number, waybill number, etc., to facilitate the customer to query the transportation status of the goods. At the same time, the transportation progress of the goods will be tracked, and close contact will be maintained with the transportation company to timely handle problems that may occur during transportation, such as delayed delivery or damage to the goods, to ensure that customers can receive qualified products on time.
For some urgent orders, the company will open a green channel to give priority to production and shipment to meet the urgent needs of customers. In the shipment process, we always adhere to customer - centricity, ensure the accuracy and timeliness of shipment, and improve customer satisfaction.
(4) Samples
To allow customers to better understand the performance and quality of Blv 6mm²-25mm² aluminum conductor PVC insulated power cables, the company provides sample services.
Customers can apply for samples from the company by phone, email, online consultation and other methods. When applying, they need to provide information such as the model specification and quantity of the required samples. The company will arrange according to the customer's needs. For samples of conventional models, they are usually sent out within 1-3 working days after receiving the application; for samples of special models or customized ones, it may take a longer time, and the company will communicate with the customer to determine the specific sending time.
The specification of the sample is usually 1-5 meters, which can meet the customer's preliminary inspection of the appearance, size, material and other aspects of the cable. The packaging of the sample is similar to that of the formal product to ensure that the sample is not damaged during transportation. At the same time, the sample will be accompanied by relevant product information, such as sample labels, product instructions, inspection reports, etc., to facilitate customers to understand the product.
The cost of the sample is usually borne by the customer, but for some potential large customers or long - term cooperative customers, the company may waive the sample fee as appropriate. The freight of the sample is generally paid by the customer, and the customer can choose the appropriate transportation method according to their own needs.
After the customer receives the sample, if they have any questions or opinions about the sample, the company's technical staff and sales staff will provide timely answers and feedback to help the customer make a more informed purchase decision.
(5) After - sales Service
The company attaches great importance to after - sales service and provides comprehensive and thoughtful after - sales support for Blv 6mm²-25mm² aluminum conductor PVC insulated power cables to solve customers' worries.
If the customer finds quality problems with the cable during use, such as insulation layer damage, conductor breakage, etc., and it is confirmed that it is a product quality problem, the company will provide replacement or repair services free of charge according to the situation. The customer needs to provide relevant proof materials, such as photos of the problem, purchase invoices, etc., to facilitate the company to confirm the problem and handle it.
The company has a professional after - sales technical team that can provide technical guidance and support to customers. If customers encounter problems in the process of cable installation, laying or use, they can contact the after - sales team at any time. The technical staff will answer questions online or even send personnel to the site to provide on - site guidance and solutions according to the specific situation.
For the maintenance and maintenance of the cable, the company will provide relevant guidance materials to customers, such as cable maintenance manuals, to help customers correctly maintain the cable and extend its service life. At the same time, the company will regularly conduct follow - up visits to customers to understand the use of the cable and collect customers' opinions and suggestions, so as to continuously improve the product and service quality.
In addition, the company has a sound after - sales complaint handling mechanism. For customers' complaints and suggestions, it will be handled in a timely manner, and the processing results will be fed back to the customers. The company takes customers' satisfaction as the goal and strives to provide customers with high - quality after - sales service.
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