VV Cable PVC Insulated & Sheathed Copper Power Cable - 3 Core (3X1.5mm² & 3X2.5mm²) - for Fixed Wiring

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2025-08-20 05:51:28

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Detailed Introduction to VV Cable (PVC Insulated and Sheathed Copper Power Cable)

I. From the Perspective of the Product Itself

(I) Specification Parameters

As a PVC insulated and sheathed Copper Core power cable specially designed for fixed wiring, VV cable has precise and detailed settings in terms of specification parameters to meet the power transmission needs in different scenarios.

Its core specification is 3-core, including two models: 3X1.5mm² and 3X2.5mm². In the 3X1.5mm² model, the cross-sectional area of each copper core is 1.5 square millimeters, the diameter of a single wire is precisely controlled between 0.15-0.2mm, the overall diameter of the cable is about 8-10mm, and the weight per meter is about 0.18kg. The cross-sectional area of each copper core in the 3X2.5mm² model is 2.5 square millimeters, the diameter of a single wire ranges from 0.2-0.25mm, the overall diameter of the cable is about 10-12mm, and the weight per meter is about 0.28kg.

In terms of conductivity, both models of cables perform excellently. The conductor is made of high-purity electrolytic copper with a conductivity of ≥97%, which means that during power transmission, energy loss is low and current can be transmitted efficiently. It has a wide temperature adaptation range and can work stably for a long time in an environment of -15℃ to 60℃. Whether in cold northern regions or hot southern regions, it can maintain good performance.

Insulation performance is also one of its important parameters. The insulation resistance is ≥100MΩ, which can effectively prevent electric leakage and ensure the safety of power transmission. The insulation withstand voltage reaches 3.5kV/5min, which has been verified by strict tests and can maintain stable insulation effect in high-voltage environments, ensuring electrical safety during long-term use.

In addition, the rated current-carrying capacity of the 3X1.5mm² model is 16-20A, which is suitable for low-power electricity scenarios; the rated current-carrying capacity of the 3X2.5mm² model is 25-32A, which can meet the needs of medium-power electricity. These parameters are set based on the actual situation of different electrical loads, calculated and tested accurately to ensure that the cable will not have safety problems due to overload during use.

(II) Characteristic Uses

With its unique performance and structural design, VV cable has a wide range of characteristic uses in many fields, providing reliable power transmission solutions for fixed wiring in different scenarios.

The 3X1.5mm² model cable, due to its moderate rated current-carrying capacity, is suitable for small fixed wiring scenarios. In homes, it is an ideal choice for lighting circuits, which can provide stable power support for lamps in various areas such as living rooms, bedrooms, and kitchens. At the same time, it can also be used for power supply lines of small household appliances, such as microwave ovens, rice cookers, electric fans, etc., to ensure that these appliances can work normally. In office places, this model cable can be used for power connection of office equipment, such as computers, printers, copiers, etc., to ensure the stable operation of office equipment and improve work efficiency.

The 3X2.5mm² model cable is suitable for medium-power fixed wiring scenarios. In residences, it is often used in socket circuits and can meet the electricity needs of home appliances such as washing machines, refrigerators, and TVs. For the power supply of small motors, such as exhaust fans, small water pumps, etc., this model cable can also provide stable power transmission to ensure the normal operation of the motors. In commercial places, such as shopping malls, supermarkets, restaurants, etc., the 3X2.5mm² model cable can be used for lighting main lines to provide power for large-area lighting equipment, and also can meet the electricity needs of some medium-power electrical appliances, such as air conditioners, electric ovens, etc.

Moreover, VV cable can also be applied to fixed wiring of some auxiliary circuits in industrial facilities. For example, in factory workshops, it can be used for wiring of control circuits, signal circuits, etc., to provide guarantee for the normal operation of production equipment. During construction, temporary fixed wiring can also use VV cable, such as temporary lighting at the construction site, power supply of small equipment, etc. After the building is completed, the permanent wiring can be replaced according to actual needs.

(III) Material and Style

In the selection of materials and design of styles, VV cable fully considers practicality, safety and durability, enabling it to adapt to various complex fixed wiring environments.

In terms of materials, the conductor is made of high-purity electrolytic copper, which has extremely high purity and very low impurity content, thus ensuring excellent conductivity, being able to transmit current efficiently and reduce energy loss. At the same time, high-purity electrolytic copper also has good ductility and toughness, which is convenient for multi-strand stranding processing to make conductor structures that meet the requirements.

Both the insulation layer and the sheath are made of temperature-resistant PVC materials. PVC material has good insulation performance, which can effectively block current and prevent electric leakage. It has excellent acid and alkali resistance, and can maintain stable performance in environments with acid and alkali corrosion, such as chemical plants, laboratories and other places. In addition, PVC material also has anti-aging performance, which can resist the erosion of ultraviolet rays, oxygen and other factors, and prolong the service life of the cable.

In terms of style design, VV cable adopts a 3-core structure, which can meet the wiring needs of three-phase electricity or single-phase electricity with grounding, and is suitable for most fixed wiring scenarios. The outer sheath of the cable adopts a unified color design, usually black or gray, which is not only beautiful and elegant, but also has certain dirt resistance, making it convenient for use in various environments.

The outer skin of the cable is printed with clear specification marks and meter scales. The specification marks include information such as the model, number of cores, and cross-sectional area of the cable. The meter scales are convenient for construction personnel to accurately cut the length of the cable during laying, improving construction efficiency. At the same time, this marking is also convenient for later maintenance and overhaul, and staff can quickly identify the specification and use of the cable.

The multi-strand Stranded Conductor structure is also a major feature of its style design. This structure not only increases the Flexibility of the conductor, enabling it to be laid smoothly in narrow spaces, curved pipes and other complex environments, but also can reduce the impact of the skin effect, reduce energy loss and improve the conductivity efficiency of the cable.

(IV) Production Process

The production process of VV cable adopts a series of advanced process technologies, and each link is strictly controlled and inspected to ensure that the product quality meets high standards.

The first is the processing technology of Copper Conductors. High-purity electrolytic copper ingots are selected as raw materials, and copper rods are made through smelting, casting and other processes. Then, the copper rod is drawn into a single wire with the required diameter by a wire drawing machine. During the wire drawing process, it is necessary to accurately control the speed, force and temperature of wire drawing to ensure that the diameter of the single wire is uniform, the surface is smooth, and it has good mechanical properties and conductivity. After wire drawing, the single wire is annealed to eliminate the internal stress of the single wire and improve its flexibility and ductility.

Next is the conductor stranding process. Multiple single wires are stranded according to a certain stranding method and pitch to form a multi-strand conductor. During the stranding process, it is necessary to strictly control the tension and speed of stranding to ensure that the single wires are closely combined and evenly distributed. This multi-strand stranded structure can improve the flexibility and conductivity of the conductor, and also reduce the impact of the skin effect. After stranding, the conductor is inspected for appearance and measured for size to ensure that it meets relevant standards.

Then is the extrusion process of the insulation layer. The stranded conductor is fed into the extruder, and a layer of PVC Insulation Material is extruded on the outer layer of the conductor. During the extrusion process, it is necessary to accurately control the temperature, pressure and speed of the extruder so that the PVC material can be evenly wrapped around the outer layer of the conductor to form an insulation layer with uniform thickness and smooth surface. The thickness of the insulation layer is set according to the specification and voltage level of the cable to ensure good insulation performance. After extrusion, the insulation layer is cooled and solidified, and then appearance inspection, thickness measurement and insulation performance test are carried out.

After that is the extrusion process of the sheath. The multiple conductors wrapped with insulation layers are stranded together to form a cable core, and then the cable core is fed into another extruder, and a layer of PVC Sheath is extruded on its outer layer. The extrusion process of the sheath is similar to that of the insulation layer, and various parameters need to be accurately controlled to ensure that the sheath has uniform thickness, smooth surface and is closely combined with the cable core. The main function of the sheath is to protect the internal insulation layer and conductor from the influence of the external environment, such as mechanical damage, chemical corrosion, etc. After extrusion, the sheath is cooled and solidified, and appearance inspection, thickness measurement and mechanical performance test are carried out.

Finally, there is the inspection process of finished products. Each batch of VV cables needs to undergo strict inspections, including electrical performance testing, mechanical performance testing, appearance quality inspection, etc. Electrical performance testing mainly includes conductivity testing, insulation resistance testing, voltage withstand testing, etc., to ensure that the electrical performance of the cable meets the standards; mechanical performance testing mainly includes tensile strength testing, elongation at break testing, etc., to verify the mechanical strength and flexibility of the cable; appearance quality inspection is to check whether the surface of the cable has scratches, bubbles, cracks and other defects. Only products that pass all inspections can be packaged and shipped.

II. From the Perspective of General Product Information

(I) Packaging

In order to ensure that VV cables are not damaged during transportation, storage and handling, and to ensure the quality and performance of the products, their packaging methods have been carefully designed and strictly regulated.

For a single VV cable with a length of 100 meters, it is packaged with a plastic reel. The plastic reel is made of high-strength polyethylene material, which has good pressure resistance and wear resistance, and can protect the cable from extrusion and collision during transportation and storage. The diameter of the reel is determined according to the specification of the cable to ensure that the cable can be tightly wound on the reel without loosening or slipping. After the cable is wound, the entire reel is wrapped with a moisture-proof plastic film to prevent the cable from getting damp and affecting its insulation performance. The plastic film should be wrapped tightly without gaps to ensure the moisture-proof effect.

For bulk transportation of VV cables, wooden boxes are used for packaging. The wooden boxes are made of high-quality solid wood, which has been dried and has high strength and stability, and can withstand large weight and impact force. The size of the wooden box is customized according to the quantity and specification of the cable to ensure that the cable can be neatly placed in the wooden box. Inside the wooden box, a layer of foam board with a thickness of 5-10cm is first laid. The foam board has good buffer performance and can reduce the vibration and collision of the cable during transportation. Then, the plastic reels wrapped with cables are neatly arranged on the foam board, and the reels are separated by cardboard or foam strips to avoid mutual friction and collision. Foam boards are also laid on the top and around the wooden box to further enhance the buffer effect.

The outside of the wooden box is reinforced with steel strips. The width of the steel strips is 3-5cm, and they are wrapped around every 30-50cm to ensure that the wooden box will not deform or fall apart during transportation. The surface of the wooden box is printed with clear product information, including product name, model, specification, length, quantity, production batch number, production date, manufacturer name, contact information, etc., which is convenient for users to check and identify when receiving goods. At the same time, the wooden box is also printed with various warning signs, such as "Handle with Care", "Do Not Invert", "Moisture and Sun Protection", "Stacking Limit", etc., to remind transportation and handling personnel to handle the goods correctly and avoid damaging the products due to improper operation.

For exported VV cables, their packaging also needs to meet the relevant standards and requirements of international transportation. For example, wooden boxes need to be fumigated to prevent the spread of pests and diseases; the marks on the packaging need to be in English or the official language of the destination country to ensure that foreign customers can clearly understand the product information.

(II) Transportation

The transportation process of VV cables strictly follows relevant rules and regulations and operating specifications to ensure that the products can be delivered to customers safely and timely.

In terms of domestic transportation, road transportation and railway transportation are mainly used. Road transportation has the advantages of high flexibility, fast transportation speed and door-to-door service, and is suitable for short-distance transportation and customers with high requirements on transportation time. The company has established long-term and stable cooperative relations with many professional logistics companies. These logistics companies have rich transportation experience and a sound transportation network, and can reasonably arrange transportation vehicles and routes according to customer needs and the quantity of goods. The transport vehicles are closed trucks, which can effectively prevent the cables from being affected by external factors such as rain and dust during transportation. When loading goods, the staff will neatly place the cable reels in the carriage and fix them with ropes or fixed brackets to prevent sliding or collision during transportation.

Railway transportation is suitable for long-distance and large-volume cargo transportation, with the advantages of large transportation volume, low cost and good stability. The company will select appropriate railway freight lines and trains according to the quantity of goods and the destination. During railway transportation, the cables will be loaded in containers or boxcars to ensure the safety of the goods. At the same time, the company will arrange special personnel to track and coordinate the goods, keep abreast of the transportation status of the goods, and ensure that the goods can arrive at the destination on time.

For international transportation, sea transportation and air transportation are mainly used. Sea transportation is suitable for large quantities of goods with no urgent requirements on transportation time, with the advantages of low cost and large transportation volume. The company cooperates with well-known international shipping companies and selects appropriate shipping schedules and routes according to the quantity of goods and the destination. During sea transportation, the cables will be loaded in containers, which have good sealing and pressure resistance and can protect the goods from the influence of seawater, moisture and other factors. At the same time, the company will purchase transportation insurance for the goods to cope with possible transportation risks.

Air transportation is suitable for small quantities of goods with urgent transportation time requirements, with the advantages of fast transportation speed and high efficiency. The company will choose reputable airlines to ensure that the goods can be delivered to the destination quickly and safely. During air transportation, the packaging of the cables needs to meet the relevant regulations of the airline to ensure that the goods can be transported smoothly.

Whether it is domestic transportation or international transportation, the company will track the goods throughout the process and timely feedback the transportation status of the goods to customers. In case of force majeure or other emergencies during transportation, the company will timely communicate with customers and negotiate solutions to ensure that the interests of customers are not lost.

(III) Shipment

The company has a complete shipment process. Every link from customer ordering to goods shipment is strictly controlled to ensure the accuracy and timeliness of shipment.

After the customer places an order, the customer service staff will contact the customer within 2 hours to confirm the order information, including product model, specification, quantity, delivery address, contact information, transportation method, etc. After confirmation, the customer service staff will enter the order information into the company's ERP system, generate a sales order, and transmit the order information to the warehouse department.

After receiving the order information, the warehouse department will immediately arrange special personnel for goods preparation. The goods preparation personnel will find the required cable products in the corresponding area of the warehouse according to the order information. During the search process, they will carefully check the product model, specification, production batch number and other information to ensure that it is consistent with the order. After finding the goods, the goods preparation personnel will conduct an appearance inspection of the cable, check for damage, deformation, etc., and at the same time check the length and quantity of the cable to ensure accuracy.

After the goods preparation is completed, the warehouse department will move the goods to the inspection area for re-inspection by quality inspectors. Quality inspectors will conduct sampling inspections on the electrical performance, mechanical performance, appearance quality, etc. of the cable in accordance with the company's quality inspection standards to ensure that the product quality meets the requirements. If unqualified products are found, they will be replaced immediately until all products meet the quality standards.

After passing the inspection, the warehouse staff will package the cables according to the packaging requirements. After packaging, clear shipping information is marked on the package, including customer name, delivery address, contact information, order number, etc. Then, the warehouse staff will move the goods to the shipping area and wait for the logistics company to pick up the goods.

The company will communicate with the logistics company in advance according to the transportation method chosen by the customer to arrange the pickup time and vehicle. When the logistics company picks up the goods, the warehouse staff and the staff of the logistics company will check the quantity, model, specification and other information of the goods together. After confirmation, both parties will sign on the delivery note. At the same time, the warehouse staff will feed back the logistics order number and other information to the customer service staff, and the customer service staff will timely inform the customer of the logistics information to facilitate the customer to query the transportation status of the goods.

For spot products, the company promises to ship within 24 hours after the customer places the order; for customized products, the delivery time will be determined through negotiation with the customer according to the production cycle and shipped on time as agreed. If the shipment is delayed due to special circumstances, the customer service staff will communicate with the customer in advance, explain the reason, and negotiate a new delivery time to ensure that the customer's production and construction progress is not affected.

(IV) Samples

In order to allow customers to fully understand the quality and performance of VV cables before mass purchase, the company provides sample services for customers to test and evaluate.

Customers can apply for samples through the company's official website, telephone, email, etc. When applying, customers need to provide detailed information, including company name, contact person, contact information, model, specification, quantity of the required samples, etc. After receiving the sample application, the customer service staff will review the application information within 1 working day. After approval, they will contact the customer to confirm the relevant matters of the sample, such as the delivery time, delivery method, sample fee, etc.

For samples of conventional models of VV cables, the company provides them free of charge, but customers need to bear the transportation cost of the samples. The quantity of samples is usually 1-2 meters. If more samples are needed, customers need to pay the corresponding fee. For specially customized samples, the company will charge a certain sample fee according to the production cost of the samples, and the sample fee can be deducted when the customer makes a large purchase later.

The production process of the samples is the same as that of the formal products, ensuring that the quality and performance of the samples are consistent with the formal products. After the samples are produced, they will undergo strict quality inspection. Only after passing the inspection can they be packaged according to the specified packaging method, and the relevant information of the samples, such as model, specification, production batch number, etc., is marked on the package.

The delivery method of the samples can be chosen by the customer, such as express delivery, logistics, etc. The company will send out the samples in a timely manner according to the customer's choice, and inform the customer of the express order number or logistics order number to facilitate the customer to query the transportation status of the samples. After the samples are sent out, the customer service staff will track them to ensure that the samples can be delivered to the customer on time.

After receiving the samples, if customers have any questions or opinions on the quality and performance of the samples, they can contact the company's customer service staff or technical staff at any time. The company's technical staff will provide customers with professional technical support and answers to help customers understand the various performance indicators of the samples. If the customer is satisfied with the samples, they can make a large purchase according to the actual demand; if the customer has suggestions for improvement on the samples, the company will adjust and improve according to the customer's opinions until the customer is satisfied.

(V) After-sales Service

The company has always adhered to the service concept of "customer first" and provided customers with all-round and high-quality after-sales services to solve various problems encountered by customers in the process of using the products.

In terms of product quality assurance, the company promises that all VV cables sold are brand-new and genuine, in line with relevant national standards and industry norms, and provides an 18-month quality warranty period. During the warranty period, if the product has quality problems caused by non-human factors, the company will provide customers with free repair or replacement services. If the product has problems due to improper use or man-made damage by the customer, the company will also provide repair services for the customer, but will charge the corresponding repair fees and parts fees.

In order to facilitate customers to consult and solve problems, the company has set up a special after-sales service hotline and online customer service platform. Customers can contact after-sales service personnel by telephone, email, online chat, etc. After-sales service personnel will respond to customers' inquiries and complaints within 24 hours and provide solutions in a timely manner.

In terms of technical support, the company has a professional technical team. Technical personnel have rich industry experience and professional knowledge and can provide customers with professional technical consultation and guidance. For example, they can provide advice on cable selection, installation methods, and maintenance precautions according to the customer's specific use scenarios, helping customers use the products correctly and avoid problems caused by improper use. If customers encounter technical difficulties during the installation and use of the cable, technical personnel can also provide on-site guidance and support if necessary.

In terms of return and exchange services, if the product received by the customer has quality problems that do not meet the agreement or the product model and specification are inconsistent with the order, the customer can apply for return or exchange within 7 days after receiving the product. The company will verify the situation after receiving the customer's return or exchange application. If it is confirmed that it is the company's responsibility, it will handle the return or exchange procedures for the customer in a timely manner and bear the relevant transportation costs. For products that have been used or damaged due to man-made reasons, the company does not provide return or exchange services, but can provide repair services.

The company also pays attention to the feedback of customers on the products. After the customer uses the product, the after-sales service staff will conduct a follow-up visit to understand the use of the product and collect the customer's opinions and suggestions. For the problems and suggestions put forward by customers, the company will organize relevant personnel to study and discuss, and continuously improve the product quality and service level.

In addition, the company has established a complete after-sales service file system, which records the customer's purchase information, product use status, after-sales service records, etc. This is not only convenient for the company to track the product's whole life cycle, but also provides a basis for handling after-sales problems. If customers need to inquire about the after-sales service records, they can contact the after-sales service staff, who will provide relevant information in a timely manner.

In general, the company's after-sales service system is designed to provide customers with comprehensive and thoughtful services, ensuring that customers can use the products with confidence and solving their worries in the use process. The company is committed to establishing long-term and stable cooperative relations with customers through high-quality after-sales services.