I. Product-Related Information
(1) Specification Parameters
The 3-core 2.5mm² flexible PVC
Insulated Cable (300/500V) has a rigorous design and clear standards in terms of specification parameters, ensuring its stable operation in various low-voltage electrical scenarios.
In terms of conductor specifications, the cable contains 3 conductors with a cross-sectional area of 2.5mm². Each conductor is made of high-purity stranded copper, which is formed by stranding multiple fine
Copper Wires. This structure enables the conductor diameter to be precisely controlled within an appropriate range, ensuring sufficient conductive area while providing a basis for the
Flexibility of the cable. Its conductivity is ≥58MS/m, and this high-performance index ensures that current can be transmitted efficiently, reducing power loss. In terms of current-carrying capacity, the cable can safely carry a continuous current of approximately 24A at an ambient temperature of 30°C, which can fully meet the power requirements of most small and medium-sized electrical equipment, such as common household appliances and office equipment.
In terms of voltage level, the rated voltage of the cable is 300/500V, where 300V represents the voltage between the conductor and the ground, and 500V represents the voltage between conductors. This voltage level makes it suitable for low-voltage power distribution systems with AC 50Hz or 60Hz, and it is widely used in power distribution and equipment connection in homes, commercial and small industrial places.
The parameters of the insulation layer are also crucial. The
PVC Insulation layer wrapped around each conductor has a uniform thickness of approximately 0.8mm. This thickness is carefully designed to provide good insulation performance without excessively increasing the outer diameter and hardness of the cable. The insulation layer has excellent dielectric properties and can withstand a 2kV power frequency withstand voltage test, which can effectively prevent the risk of short circuits between core wires and between core wires and external objects, ensuring electrical safety.
The overall size of the cable also has clear specifications. Without the outer sheath, the diameter of the 3
Insulated Core wires after stranding is about a certain range. After adding the outer
PVC Sheath, the overall diameter is controlled at a reasonable value, enabling it to adapt to different installation environments, such as pipe threading and wiring troughs. At the same time, the weight of the cable is also optimized, with a moderate weight per meter, which is convenient for transportation and installation.
(2) Characteristic Uses
The 3-core 2.5mm² flexible PVC insulated cable has a wide range of characteristic uses in many fields due to its unique performance.
In the field of household appliances, this cable is an ideal choice for
Internal Wiring. For household appliances such as refrigerators, air conditioners, washing machines, and microwave ovens, their internal circuits are complex, requiring cables to be able to adapt to bending and folding in small spaces. The flexible characteristic of this cable enables it to easily move between various components inside the appliances, and at the same time, stable conductive performance and good insulation protection ensure the safe operation of household appliances.
In terms of office equipment connection, this cable is also widely used for connection between office equipment such as printers, copiers, scanners, computer hosts, and between equipment and power supplies. In office environments, the layout of equipment often changes, and cables need to be moved and bent frequently. The flexibility and durability of this cable can meet this demand, ensuring the normal power supply and data transmission of office equipment (in some scenarios with signal transmission functions).
In small mechanical circuits, this cable also plays an important role. Some small processing machinery, packaging machinery, conveying machinery, etc., have limited wiring space in their internal circuits, and there may be certain vibration and displacement during mechanical operation, requiring cables to have good flexibility and fatigue resistance. The 3-core 2.5mm² flexible PVC insulated cable can withstand these working conditions, ensuring the stable connection and reliable operation of mechanical circuits.
In the scenario of mobile equipment power supply, the advantages of this cable are more prominent. Electric tools such as electric drills, electric saws, angle grinders, etc., need to be moved frequently during use, and the cable needs to swing flexibly with the tool. The flexibility of this cable prevents it from being damaged due to frequent bending. Stage lighting equipment also often needs to adjust positions and angles, and its
Power Supply Cables also need to have good flexibility. This cable can meet the installation and use needs of stage lighting.
Concealed or exposed wiring in buildings is also its common use. In home decoration and commercial place decoration, for some areas that need concealed wiring, such as inside walls and ceilings, this cable can easily pass through pipes and wire slots; while in exposed wiring, its regular appearance and good flexibility are also convenient for installation and arrangement. Elevator trailing cables are another important application scenario. During the operation of the elevator, the trailing cables need to bend and move with the lifting of the elevator. The flexibility and fatigue resistance of this cable can ensure the stable power supply and signal transmission of the elevator.
The internal connection of automation equipment is also inseparable from this cable. The connection between various sensors, actuators, and controllers in automated production lines requires cables to be able to adapt to the compact layout and certain movement of the equipment. The performance of this cable can meet the high-precision and high-reliability requirements of automation equipment for connection.
(3) Material and Style
The 3-core 2.5mm² flexible PVC insulated cable fully considers performance, safety, and practicality in material selection and style design.
In terms of materials, the conductor is made of high-purity stranded copper, which has excellent conductive performance, can transmit current efficiently, and reduce power loss. At the same time, the structure of stranded multiple fine copper wires not only enhances the flexibility of the conductor but also improves its fatigue resistance, enabling it to withstand frequent bending and folding without breaking easily.
Both the insulation layer and the outer sheath are made of PVC material. PVC has good insulation performance, which can effectively isolate current and prevent short-circuit accidents. Moreover, PVC material has good temperature resistance and can work stably in the temperature range of -15°C to 70°C, adapting to different environmental conditions. In addition, PVC also has certain wear resistance and chemical corrosion resistance, which can protect the internal conductor from external factors. More importantly, the PVC material has flame-retardant properties, complying with UL94 V-0 standards. When encountering an open flame, it can inhibit combustion, and can self-extinguish quickly after the open flame is removed, which greatly reduces the risk of fire spread and improves the safety of the cable.
In terms of style design, the 3 insulated core wires are arranged in parallel or stranded. The parallel arrangement style is more convenient for wiring and fixing in some specific installation scenarios; the stranded arrangement makes the overall structure of the cable more compact, with better flexibility, and can better adapt to the needs of bending and folding. The outer layer is wrapped with a unified PVC sheath, which is mostly gray or black. This color choice not only makes the cable look simple and elegant but also has certain dirt resistance, which is convenient for daily maintenance and cleaning.
The core wires are identified by different colors, which is a major highlight of the cable's style design, such as brown, blue, yellow-green, etc. Brown usually represents the phase wire, blue represents the neutral wire, and yellow-green two-color represents the
Ground Wire. This clear color identification is convenient for installers to quickly distinguish different core wires during construction, accurately connect the circuit, conforms to international electrical specifications, reduces the possibility of wiring errors, and improves installation efficiency and electrical safety.
(4) Production Process
The production process of the 3-core 2.5mm² flexible PVC insulated cable is rigorous and meticulous, and each link is carefully controlled to ensure the quality and performance of the product.
The first step is the manufacture of the conductor. High-purity copper materials are selected, and copper rods are made through smelting, ingot casting and other processes. Then, the copper rod is drawn into multiple fine copper wires through a wire drawing equipment. During the wire drawing process, the drawing speed and die precision need to be strictly controlled to ensure that the diameter of the copper wire is uniform. After that, multiple fine copper wires are stranded according to a certain stranding process. During the stranding process, it is necessary to ensure that the tension of each copper wire is uniform and the stranding pitch is reasonable to enhance the flexibility and conductive performance of the conductor. After stranding, the conductor is annealed. Through the heating and cooling process, the internal stress of the conductor is eliminated, and its ductility and flexibility are improved.
Next is the extrusion of the insulation layer. The
Stranded Conductor is fed into the extruder, and a layer of PVC
Insulation Material is wrapped around the conductor. During the extrusion process, the extrusion temperature, speed and pressure must be accurately controlled to ensure that the insulation layer has a uniform thickness, is tightly combined with the conductor, and has no defects such as bubbles and impurities. At the same time, according to the requirements of different core wire colors, corresponding color masterbatches are added to the PVC material to make the insulation layer present the specified colors, such as brown, blue, yellow-green two-color，etc.
Then is the stranding or parallel arrangement of the core wires. For cables with stranded arrangement, the
3 Core Wires with insulation layers are stranded according to a certain stranding method and pitch. During the stranding process, it is necessary to ensure that the position of each core wire is accurate, the tension is uniform, and the core wires are prevented from being loose or twisted. For cables with parallel arrangement, the 3 core wires need to be arranged neatly and fixed and sorted by specific equipment.
Finally, the extrusion of the outer sheath is carried out. The 3 core wires arranged in a stranded or parallel manner are fed into the sheath extruder as a whole, and a layer of PVC sheath is wrapped around them. During the extrusion process, various parameters must also be strictly controlled to ensure that the sheath has a uniform thickness, is tightly combined with the internal core wires, has a smooth surface, and has no defects such as scratches and depressions. After the sheath extrusion is completed, the cable is cooled to make the sheath quickly shape.
During the entire production process, multiple quality inspections are also required. Such as the detection of conductor diameter, resistance and other parameters, the detection of insulation layer thickness, voltage resistance performance, the detection of the overall outer diameter and tensile strength of the cable, etc. Through these strict detection methods, problems in the production process can be found in time, and adjustments and improvements can be made to ensure that each batch of cables meets relevant standards and requirements.
II. General Product Information
(1) Packaging
The packaging design of the 3-core 2.5mm² flexible PVC insulated cable fully considers the product's protection, transportation and storage needs, ensuring that the cable remains in good condition before reaching the user.
For coiled cables, hard paper tubes or plastic reels are usually used as the inner core, and the cables are neatly wound on the reels. During the winding process, the winding tension must be controlled to avoid excessive stretching or loosening of the cable, and to prevent the cable from being twisted or knotted. The two ends of the reel are equipped with baffles to prevent the cable from slipping off the reel. Then, a layer of moisture-proof and wear-resistant plastic film is wrapped around the reel. The plastic film should be closely attached to the cable and the reel to play the role of moisture-proof, dust-proof and wear-resistant. For some cable reels with longer lengths or larger specifications, wooden boxes or pallets are used for reinforced packaging to improve the stability during transportation and prevent the cable reels from rolling or colliding during transportation.
For small-length cables, such as 1m, 5m, 10m, etc., they are usually packaged in sealed plastic bags or cartons. The plastic bags or cartons will be marked with the cable's specifications, length, model and other information for users to identify and use. This small packaging method is not only convenient for users to buy and carry but also can avoid damage to the cable during storage and transportation.
The packaging will also be printed with detailed product labels, including product name, specification parameters, rated voltage, manufacturer, production date, shelf life, execution standards and other information. These labels are clear and easy to understand, facilitating users to understand the basic situation of the product, and also conforming to relevant packaging specifications and standards.
(2) Transportation
The following points need to be paid attention to during the transportation of the 3-core 2.5mm² flexible PVC insulated cable to ensure the safety and quality of the product.
In terms of transportation mode selection, according to factors such as transportation distance, quantity and time requirements, road transportation, railway transportation, water transportation or air transportation can be selected. Road transportation has high flexibility and is suitable for short-distance and small-batch transportation; railway transportation is suitable for medium and long-distance, large-batch transportation with good stability; water transportation has low cost and is suitable for long-distance and large-batch transportation, but the transportation time is longer; air transportation is fast and suitable for transportation in emergency situations, but the cost is higher.
During transportation, the cable should be avoided from severe collision, extrusion and vibration. The transport vehicles or containers should be kept clean, dry and free of corrosive substances. The cable reels should be placed neatly and fixed firmly to prevent rolling, collision or dumping during transportation. For small packaged cables, avoid stacking too high to prevent crushing.
At the same time, attention should be paid to the environmental conditions during transportation. Avoid transporting the cable in extreme temperature environments, such as high temperature and low temperature, so as not to affect the performance of the cable. When transporting in rainy or humid environments, moisture-proof measures should be taken to ensure that the cable packaging is intact and prevent rainwater from infiltrating.
During transportation, it is also necessary to do a good job in logistics tracking and recording, timely understand the transportation status of the cable, and deal with problems in a timely manner. After arriving at the destination, the cable should be inspected to confirm whether the packaging is intact and whether the cable is damaged. If there is any problem, communicate with the transporter and the manufacturer in a timely manner to solve it.
(3) Delivery
The delivery process of the 3-core 2.5mm² flexible PVC insulated cable is standardized and orderly to ensure that the goods can be delivered to users in a timely and accurate manner.
First of all, after receiving the user's order, the staff will review the order information, including product specifications, quantity, delivery address, delivery time, etc., to ensure that the order information is accurate and correct. Then, according to the order requirements, the corresponding products are retrieved from the warehouse for outbound inspection to check whether the product's packaging, labels, quantity, etc., meet the requirements and ensure that the product quality is qualified.
After passing the outbound inspection, the products are packed, and appropriate packaging materials and methods are selected according to the transportation mode and product quantity. At the same time, delivery documents are generated, including delivery notes, invoices, packing lists, etc. The information on the documents should be consistent with the order information and clear.
Select a suitable logistics company for delivery, and sign a transportation contract with the logistics company to clarify the rights and obligations of both parties. Hand over the delivery documents and goods to the logistics company, and the logistics company will transport them according to the specified route and time. During the delivery process, logistics information is fed back to the user in a timely manner, including the name of the logistics company, waybill number, estimated arrival time, etc., to facilitate the user to track the transportation status of the goods.
After the goods are delivered, the staff will record and file the delivery situation for subsequent query and statistics. If the user encounters problems during the transportation of the goods, the staff will communicate and coordinate with the logistics company in a timely manner to assist the user in solving the problems.
(4) Samples
In order to allow users to better understand the performance and quality of the 3-core 2.5mm² flexible PVC insulated cable, the manufacturer provides sample services.
Users can apply for samples through the manufacturer's official website, customer service phone, email, etc. When applying, users need to provide their basic information, such as company name, contact person, contact information, address, etc., as well as the specifications and quantity of the required samples. The manufacturer will review the user's application, and after approval, send the samples according to the user's requirements.
The specifications of the samples are consistent with the formal products, which can accurately reflect the performance and quality of the products. Samples are usually packaged in small packages, such as sealed plastic bags or small cartons, with sample instructions attached, including product specification parameters, performance characteristics, usage methods and other information.
Samples are usually sent by express service. The manufacturer will bear the cost of the samples, but in some cases, the user may need to bear the express fee, depending on the manufacturer's regulations. After receiving the samples, users can conduct various performance tests and evaluations on the samples, such as flexibility test, insulation performance test, conductive performance test, etc., to determine whether the product meets their own needs.
If the user is satisfied with the sample, they can further negotiate cooperation with the manufacturer; if the user has questions or suggestions about the sample, the manufacturer will communicate with the user in a timely manner to answer and improve.
(5) After-Sales Service
The after-sales service of the 3-core 2.5mm² flexible PVC insulated cable is perfect, providing users with comprehensive support and protection.
The manufacturer promises that if the product has quality problems caused by non-human factors within the product quality guarantee period, such as conductor breakage, insulation layer damage, short circuit, etc., it will provide users with free repair or replacement services. The quality guarantee period is usually 1-2 years from the date of the product leaving the factory, and the specific period depends on the manufacturer's regulations.
If users encounter any problems during use, such as installation difficulties, abnormal performance, etc., they can consult through the manufacturer's customer service phone, email, online customer service, etc. The manufacturer's professional and technical personnel will provide users with timely answers and guidance to help users solve problems.
For users who purchase in bulk, the manufacturer will also provide on-site services, such as on-site installation guidance and product quality inspection. During the use of the product, the manufacturer will conduct regular return visits to understand the use of the product, collect users' opinions and suggestions, and continuously improve the product and service.
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