Detailed Introduction to 1.25-2.0mm² Twisted Pair PVC Insulated Copper Cable
I. From the Perspective of the Product Itself
(1) Specification Parameters
The specification parameters of the 1.25-2.0mm² twisted pair PVC insulated copper cable are carefully set to fully meet the requirements of low-voltage signal and power transmission, providing precise technical support for applications in different scenarios.
This cable covers four specifications: 1.25mm², 1.5mm², 1.75mm², and 2.0mm². In the 1.25mm² cable, the diameter of each conductor is approximately 1.28mm, and the overall outer diameter after two conductors are twisted together is about 4.0mm. At 20°C, its conductor DC resistance does not exceed 15.8Ω/km, and the insulation resistance is ≥100MΩ, which can ensure stable transmission in a low-voltage environment. The single conductor diameter of the 1.5mm² cable is about 1.38mm, and the overall outer diameter after twisting is about 4.2mm. At 20°C, the conductor DC resistance does not exceed 12.1Ω/km, and the insulation resistance is also ≥100MΩ, which can adapt to slightly higher power signal and power transmission needs.
The single conductor diameter of the 1.75mm² cable is about 1.50mm, the overall outer diameter after twisting is about 4.5mm, the conductor DC resistance at 20°C does not exceed 10.5Ω/km, and the insulation resistance is ≥100MΩ, which can meet the transmission requirements of medium-power equipment. The single conductor diameter of the 2.0mm² cable is about 1.60mm, the overall outer diameter after twisting is about 4.8mm, the conductor DC resistance at 20°C does not exceed 9.5Ω/km, and the insulation resistance is ≥100MΩ, which is suitable for scenarios with relatively high power.
The rated voltage of this series of cables is 300V, which meets the standard of low-voltage transmission and can be directly applied to signal and power connections of various low-voltage equipment. In terms of temperature adaptation range, it can work normally in an environment of -20°C to 60°C, and can maintain stable performance in both cold winters and hot summers. Its minimum bending radius is 6 times the outer diameter of the cable. The minimum bending radius of the 1.25mm² cable is about 24mm, and that of the 2.0mm² cable is about 28.8mm, which is convenient for wiring operations in narrow spaces.
In addition, the twist pitch of the cable is also strictly regulated. The twist pitch of 1.25mm² and 1.5mm² cables is 15-20mm, and that of 1.75mm² and 2.0mm² cables is 20-25mm. A reasonable twist pitch can effectively enhance the anti-interference ability and ensure the quality of signal transmission.
(2) Characteristic Applications
The 1.25-2.0mm² twisted pair PVC insulated copper cable, with its unique structure and excellent performance, has distinctive applications in many fields, providing reliable guarantee for signal and power transmission of various equipment.
In the field of smart homes, 1.25mm² and 1.5mm² cables are widely used. Temperature and humidity sensors in smart homes need to transmit environmental data to the control center in real time and obtain a small amount of power to maintain work. These two specifications of cables can perfectly meet their needs. For example, temperature and humidity sensors installed in living rooms and bedrooms can stably transmit the detected temperature and humidity signals through the cable, while receiving power supply from the control center. The same is true for human body sensors. When someone passes by, the sensor transmits a signal to the lighting system through the cable to make it light up automatically, and the cable provides power for the sensor at the same time.
In the field of security monitoring, 1.75mm² and 2.0mm² cables play an important role. Security cameras need to transmit video signals and obtain working power at the same time. 1.75mm² cables can be used for connecting small indoor cameras, such as cameras installed in corridors and living rooms, which can ensure that video signals are transmitted to the monitoring host clearly and stably, and ensure the normal power supply of the cameras. 2.0mm² cables are suitable for outdoor cameras. Due to the relatively complex outdoor environment, higher requirements are placed on the transmission capacity and durability of the cable. This specification of cable can resist the influence of the external environment and provide stable signal and power transmission for the camera.
The industrial control field is also inseparable from this series of cables. Small motor control modules need to receive control signals and obtain power to drive the motor to run. 1.5mm² and 1.75mm² cables can be used to connect the control module and the motor to ensure accurate transmission of control signals and make the motor work normally according to instructions. In automated production lines, the connection between some small sensors and actuators also often uses this cable. For example, the material detection sensor transmits the detected material information to the actuator through the cable, and the actuator performs corresponding operations according to the signal. The cable provides power for the sensor and actuator at the same time.
In addition to the above main fields, the cable can also be used in office equipment, medical instruments and other scenarios. For example, signal connections and small power supply lines inside office printers and copiers; signal transmission and power supply of some small monitoring instruments in the medical field, etc., can see the figure of this series of cables.
(3) Material and Style
In terms of material selection and style design, the 1.25-2.0mm² twisted pair PVC insulated copper cable fully considers transmission performance, environmental adaptability, installation convenience and other factors.
The conductor is made of high-purity electrolytic copper with a purity of more than 99.95%. High-purity electrolytic copper has excellent conductivity, which can effectively reduce loss during signal transmission, ensuring the integrity of signals and the efficiency of power transmission. At the same time, electrolytic copper has good ductility and
Flexibility, so that the conductor is not easy to break during twisting and bending, and can adapt to various complex installation environments.
The insulation layer is made of high-quality polyvinyl chloride (PVC) material, which has good insulation performance, can effectively isolate the current between the two conductors and between the conductor and the external environment, and prevent short circuits and electric leakage. The
PVC Insulation layer also has excellent environmental resistance, which can resist moisture, dust and slight chemical corrosion, and can maintain a stable insulation effect even in relatively harsh environments. In addition, PVC material has a certain degree of flexibility, making the cable as a whole easy to bend and wire, which is convenient for installation in narrow spaces.
In terms of style, a twisted pair structure is adopted, that is, two
Insulated Conductors are twisted together. This structure is a major feature of the cable. Through twisting, the electromagnetic interference between the two conductors can be offset, which greatly enhances the anti-interference ability of the cable and ensures the stability and accuracy of signal transmission. Compared with a single wire, the twisted pair structure performs better in transmitting high-frequency signals, which can effectively reduce signal attenuation and distortion.
The color design of the cable is also reasonable. Usually, the insulation layer adopts light colors such as white and blue, which is not only beautiful, but also convenient to distinguish from other cables during wiring. At the same time, the cable has a moderate outer diameter, a compact overall structure and light weight, which is convenient for carrying and installation. It can be easily laid in the wall, trunking or inside the equipment.
(4) Production Process
The production process of 1.25-2.0mm² twisted pair PVC insulated copper cable is rigorous and meticulous. Every link from raw material processing to finished product inspection is strictly controlled to ensure that the product quality meets relevant standards.
In the conductor manufacturing link, first, high-purity electrolytic copper is melted, and then made into copper rods through a continuous casting process. The quality of the copper rod directly affects the performance of the conductor. Therefore, during the casting process, parameters such as temperature and cooling rate need to be strictly controlled to ensure that the purity and mechanical properties of the copper rod meet the requirements. Then, the copper rod is drawn into
Copper Wires of the required diameter through multiple wire drawing processes. During the wire drawing process, the size of the wire drawing die and the wire drawing speed are precisely controlled to ensure that the diameter of the copper wire is uniform, the surface is smooth and free of burrs, so as to reduce the resistance during signal transmission.
The extrusion of the insulation layer is one of the key processes. After heating the PVC material to a molten state, it is evenly coated on the surface of the copper wire through a special extruder to form an insulation layer. During the extrusion process, the extrusion temperature, pressure and speed are strictly controlled to ensure that the thickness of the insulation layer is uniform, closely combined with the conductor, and free of bubbles, pinholes and other defects. The thickness of the insulation layer is accurately adjusted according to different specifications of cables to meet the requirements of insulation performance. After extrusion, the
Insulated Wire core is quickly cooled and shaped through a cooling water tank to ensure its dimensional stability.
Next is the stranding process, in which the two insulated wire cores are stranded according to the set twist pitch. During the stranding process, it is necessary to accurately control the stranding speed and tension to ensure that the two wire cores are stranded evenly and tightly, and the pitch meets the specified requirements. A reasonable twist pitch can maximize the anti-interference effect of the twisted pair, so strict monitoring and adjustment are required during the production process.
After stranding, the cable is inspected for appearance to ensure that its surface is smooth, the color is uniform, and there are no defects such as damage. Then, electrical performance tests are carried out, including conductor DC resistance test, insulation resistance test, voltage resistance test, etc., to verify whether the conductivity and insulation performance of the cable meet the standards. In addition, mechanical performance tests such as bending test and tensile test are also carried out to inspect the flexibility and mechanical strength of the cable.
During the production process, full-process quality monitoring is implemented, and each link has detailed records for traceability. The finished cables can be packaged and stored only after passing strict inspection, ensuring high-quality products for users.
II. From the Perspective of General Product Information
(1) Packaging
The packaging design of 1.25-2.0mm² twisted pair PVC insulated copper cable fully considers the transportation, storage and sales needs of the product, aiming to protect the product quality and facilitate users' use.
For cables of different specifications and lengths, corresponding packaging methods are adopted. Cables with lengths of 100 meters and 200 meters are usually wound on plastic reels. The plastic reels are made of high-strength, environmentally friendly polyethylene material, which has good pressure resistance and impact resistance, and can protect the cables from damage during transportation and storage. Both sides of the reel are provided with baffles to prevent the cable from falling off the reel. The baffles are printed with clear product information, including product name, specification, length, rated voltage, manufacturer, production date, execution standard, etc., which is convenient for users to quickly understand the basic situation of the product.
For small batches of retail products, such as 10-meter and 20-meter short wires, they are packaged in sealed plastic bags. The packaging bag is made of thickened PE material, which has good moisture resistance and wear resistance, and can protect the cable from the external environment. The packaging bag is printed with the main information of the product and usage precautions, which is convenient for users to buy and carry.
During the packaging process, necessary protective treatment is also carried out on the cable. For cables packaged with reels, a layer of moisture-proof plastic film is wrapped around the outside to prevent the cables from getting damp; for cables packaged with plastic bags, the bag mouth is sealed by heat sealing technology to ensure tightness. In addition, the packaging materials meet environmental protection requirements and are recyclable, reducing environmental pollution.
(2) Transportation
The transportation process of 1.25-2.0mm² twisted pair PVC insulated copper cable strictly follows relevant regulations and operating procedures to ensure that the products are delivered to the destination safely and timely.
In terms of transportation mode selection, a variety of transportation modes are used in combination according to the transportation distance and order quantity. For domestic short-distance transportation, freight vans or small trucks are usually used. This mode has high flexibility and can quickly deliver products to customers, which is suitable for transportation of small batches and urgent orders. For long-distance transportation, road express transportation or railway freight is mostly used. Road express transportation can provide door-to-door service, which is convenient for customers to receive goods; railway freight has the characteristics of large transportation volume and relatively low cost, which is suitable for transportation of large quantities of products.
Before loading, carefully check the packaged cables to ensure that the packaging is intact and the reels or packaging bags are not damaged or deformed. For cables packaged with reels, use forklifts and other equipment for loading and unloading to avoid damage caused by manual handling. In the carriage of the transport vehicle, reasonably arrange the placement of cables to avoid mutual extrusion and collision. For heavier reels, place them at the bottom of the carriage and fix them with ropes to prevent sliding.
During transportation, strictly control the transportation environment. Avoid cables being exposed to direct sunlight to prevent the PVC insulation layer from aging due to high temperature; when transporting in rainy days, ensure that the carriage of the transport vehicle is well sealed, or cover the cables to prevent them from getting damp. At the same time, during transportation, try to avoid sudden braking, sharp turns and other operations to reduce friction and collision between products.
During transportation, special personnel are arranged to track and monitor the goods, and real-time information on the location and transportation status of the goods is obtained through the logistics information system. In case of special circumstances (such as road blockage, bad weather), communicate with customers in a timely manner, adjust the transportation plan, and ensure that the products can be delivered as soon as possible.
(3) Delivery
The delivery process of 1.25-2.0mm² twisted pair PVC insulated copper cable is standardized and orderly. Every link from order receipt to goods delivery is efficiently coordinated to ensure that customers can receive the required products in a timely manner.
After customers place orders through online platforms, emails, phone calls, etc., customer service personnel will confirm the order within 1-2 working days, verify the specifications, quantity, length, receiving address, contact information, delivery time and other information of the products required by customers to ensure that the order information is accurate. If there is any doubt about the order information, the customer service staff will contact the customer in a timely manner and proceed with the follow-up operations after confirmation.
After the order is confirmed, the warehouse manager will retrieve the corresponding products from the warehouse in a timely manner according to the order information. In the retrieval process, strictly follow the first-in-first-out principle, giving priority to distributing products with earlier production dates to ensure that the products are used within the shelf life. At the same time, re-inspect the retrieved products, check whether the specifications, quantity and packaging of the products are consistent with the order, and check whether the packaging is intact to ensure that the delivered products are of qualified quality.
Before the products are shipped out of the warehouse, the warehouse manager will carry out necessary packaging reinforcement for the products, especially for products that need to be transported over long distances, and will add buffer materials such as foam pads and bubble films to enhance the protection ability of the packaging. At the same time, a detailed delivery note is generated, which indicates the order number, customer information, product information (specifications, quantity, length), delivery date, transportation method, estimated arrival time, etc., and the delivery note is sent along with the goods.
After the warehouse transfers the goods to the logistics department, the logistics department will arrange the corresponding transport vehicles and routes according to the receiving address and transportation method, and enter the delivery information into the logistics system to generate a logistics tracking number. The logistics tracking number will be fed back to the customer in a timely manner, facilitating the customer to query the transportation status of the goods through the logistics platform.
In the delivery process, a sound information feedback mechanism has been established. If there is insufficient product inventory, logistics delays, etc., the customer will be notified in a timely manner, and solutions will be negotiated, such as changing product specifications and adjusting delivery time, to meet customer needs to the greatest extent. At the same time, the entire delivery process is recorded for subsequent traceability and query.
(4) Samples
In order to allow customers to better understand the quality and performance of 1.25-2.0mm² twisted pair PVC insulated
Copper Cables, the company provides sample services, allowing customers to test and evaluate before bulk purchase.
Customers can apply for samples through the company's official website, email, phone and other channels. When applying, it is necessary to provide the specifications, quantity, detailed receiving address, contact information and other information of the required samples. The company's customer service staff will contact the customer within 1-3 working days after receiving the sample application to confirm the sample demand and inform the customer of relevant information about the sample, such as whether the sample is charged, the delivery method, and the estimated delivery time.
For customers with clear purchase intentions, the company usually provides free samples, and only charges the express fee of the samples. The specifications, materials and performance of the samples are completely consistent with the officially sold products, ensuring that customers can accurately understand the quality of the products through the samples. The length of the sample is generally 1-2 meters, which is sufficient for customers to test the appearance, size, flexibility, insulation layer thickness, anti-interference performance of the cable.
The samples are packaged in small sealed bags or small cartons, which are printed with product specifications, models and other information for easy identification by customers. At the same time, product manuals, quality inspection reports and other materials are attached with the samples to facilitate customers to understand the detailed parameters and quality inspection of the products.
Samples are sent by express. The company will choose reputable and high-quality express companies such as SF Express, Yuantong, Zhongtong to ensure that the samples can be delivered to customers quickly and safely. Once the samples are shipped, the company will inform the customer of the tracking number, allowing them to check the delivery progress through the courier company's official website or customer service.
After receiving the samples, if customers have any questions or need further technical support, the company's professional technical personnel will promptly provide answers and assistance to ensure that customers can fully understand the performance and characteristics of the products.
(5) After-sales Service
The 1.25-2.0mm² twisted pair PVC insulated copper cable comes with a comprehensive after-sales service to protect the legitimate rights and interests of customers and ensure that they have no worries during use.
In terms of product quality assurance, the company promises that the sold cables, under normal use conditions, come with a 10-year quality guarantee period. Within the quality guarantee period, if the product malfunctions due to material or production process issues, the company will provide free product replacement or repair services. Customers only need to provide proof of purchase and a description of the product malfunction, and the company will arrange professional personnel to verify and handle it.
If customers encounter any problems during use, they can contact the company's after-sales service team through the customer service hotline, email, online customer service, etc. The after-sales service personnel will respond to customer needs within 24 hours and answer and handle the problems raised by customers. For technical issues, such as cable installation methods, wiring skills, compatibility with other equipment, etc., the after-sales service team will arrange professional technical personnel to provide customers with detailed guidance and suggestions.
If customers need on-site technical support, the company will arrange technical personnel nearby to arrive at the site within the agreed time according to the customer's geographical location and the urgency of the problem to assist customers in solving the problem. On-site technical support services are usually provided free of charge within the quality guarantee period. Beyond the quality guarantee period, a certain service fee will be charged according to the actual situation.
The company has formulated a clear policy for product return and exchange. If the product received by the customer has quality problems or does not match the order information, the customer can apply for return or exchange within 7 days after receiving the product, and the company will bear the round-trip freight. If the customer needs to return or exchange the product due to their own reasons, and the product is unused and the packaging is intact, the customer can apply for return or exchange within 30 days after receiving the product, but they need to bear the round-trip freight.
The company has also established a customer feedback mechanism, regularly 回访 customers to understand the product usage and customer satisfaction, collect customer opinions and suggestions, and continuously improve product and service quality. Through a sound after-sales service system, the company is committed to providing customers with high-quality and efficient services and establishing a good brand image.
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