NFC 32-321 0.6/1kv U1000 RO2V R2V Insulated Single Core Copper Cables 1X120mm2 1X240mm2

Conductor Material: The conductor of this series of cables uses high-purity oxygen-free copper with a purity of more than 99.95%. High-purity oxygen-free copper has excellent conductivity, high conductivity, which can reduce energy loss during current transmission and improve power transmission efficiency. At the same time, oxygen-free copper has excellent mechanical properties, with good ductility and toughness. During cable processing and laying, it is not easy to break, and is easy to bend and shape. In addition, oxygen-free copper has good chemical stability, is not easy to be corroded, can ensure long-term stable operation of the cable, and prolong its service life.

Insulation Material: The insulation layer of the cable uses polyvinyl chloride (PVC) material that meets RO2V and R2V standards. This material has good electrical insulation performance, which can effectively block current and prevent leakage accidents. It also has a certain mechanical strength, which can protect the conductor from external mechanical damage, such as extrusion and collision. At the same time, the insulation material has good aging resistance. During long-term use, it is not easy to crack, harden and other phenomena due to environmental factors, maintaining stable insulation performance. However, PVC materials will release harmful gases at high temperatures, so it is necessary to avoid long-term exposure to high-temperature environments during use.

Style Design: This series of cables is designed with a single core, and a thick insulation layer is wrapped around the outside of a single Copper Core. The single core design makes the cable more flexible, which is convenient for laying in various complex environments, whether it is direct burial, pipe threading or overhead. The appearance color of the cable is usually black, which is not only dirt-resistant, but also can absorb heat, reducing the impact of direct sunlight on the cable. On the surface of the cable, there are clearly printed information such as model, specification, rated voltage, and execution standard, which is convenient for users to identify and use. RO2V and R2V cables are basically the same in appearance, mainly distinguished by labels.

Conductor Manufacturing: First, high-purity oxygen-free copper ingots are smelted to remove impurities to obtain pure copper liquid. Then, the copper liquid is made into copper rods through a continuous casting process, and the diameter of the copper rods depends on the cross-sectional specification of the cable. Next, the copper rod is drawn through multiple passes of a wire drawing machine to gradually become thinner, forming a Copper Wire with the required diameter. For 1×120mm² and 1×240mm² cables, multiple copper wires need to be bunched to form a conductor. During the bunching process, it is necessary to control the stranding pitch and tension to ensure the roundness and tightness of the conductor, so as to improve the conductivity and mechanical strength of the conductor.

Insulation Extrusion: Insulation extrusion is a key link in cable production. PVC Insulation Materials meeting RO2V and R2V standards are added to the extruder, heated and melted, and then evenly extruded and coated on the surface of the conductor through a mold to form an insulation layer. During the extrusion process, parameters such as extrusion temperature, speed and pressure must be strictly controlled. Excessively high temperature will cause the insulation material to decompose, affecting the insulation performance; excessively low temperature will cause defects such as bubbles and material shortage in the insulation layer. The stability of extrusion speed and pressure can ensure uniform thickness of the insulation layer and tight combination with the conductor.

Cooling and Solidification: The extruded cable enters the cooling water tank for cooling and solidification. The cooling process should be uniform and slow to avoid internal stress in the insulation layer due to too fast cooling speed, which affects its mechanical and electrical properties. After cooling, the cable surface is smooth, and the insulation layer is firmly combined with the conductor.

Inspection and Testing: Strict inspection and testing are carried out in all links of the production process. The diameter, resistance, stranding quality of the conductor need to be tested; the thickness, appearance, insulation resistance, voltage resistance performance of the insulation layer also need to be sampled and inspected. The finished cable also needs to undergo overall performance tests, such as current-carrying capacity test, bending performance test, aging resistance test, etc., to ensure that it meets the requirements of NFC 32-321 standard. Only products that pass all inspections and tests can leave the factory.

Packaging Materials: Cables are usually wound on steel cable reels. Steel cable reels have high strength and large bearing capacity, and can bear the weight of the cable and the external force during transportation. The size of the cable reel is determined according to the length and cross-sectional specification of the cable. The length of each reel of 1×120mm² and 1×240mm² cables is usually 100 meters or 200 meters. On the outer layer of the cable, a layer of plastic film is wrapped, which can prevent the cable from being eroded by dust and moisture, and keep the cable clean and dry. For some shorter cables, wooden box packaging can also be used, and buffer materials are placed inside the wooden box to avoid mutual collision of cables during transportation.

Packaging Marks: Clear packaging marks are printed on the surface of the cable reel or wooden box. The marking content includes product name, model, specification, length, rated voltage, execution standard, manufacturer, production date and other information, which is convenient for users to identify and accept. At the same time, some warning signs such as "Do Not Invert", "Handle with Care", "Moisture-proof and Sun-proof" are also marked to remind transportation and storage personnel to handle the cable correctly.

Packaging Requirements: During the packaging process, it is necessary to ensure that the cable is neatly wound on the cable reel to avoid distortion and knotting. The two ends of the cable should be sealed to prevent moisture and impurities from entering the inside of the cable. For cables packaged in wooden boxes, the firmness of the wooden box should be ensured to prevent damage during transportation.

Transportation Methods: This series of cables can be transported by various means such as road transportation, railway transportation and waterway transportation. Road transportation has high Flexibility and can realize door-to-door service, suitable for short-distance transportation and small-batch transportation. Railway transportation has large capacity and low cost, suitable for medium and long-distance transportation and large-batch transportation. Waterway transportation is suitable for long-distance transportation, especially for coastal areas or places with ports, with low transportation costs. When choosing the transportation method, factors such as the quantity of cables, transportation distance, and time requirements should be considered comprehensively.

Transportation Precautions: During transportation, it is necessary to ensure the stability of the cable reel to avoid rolling and collision of the cable reel on the transport tool. The cable reel should be placed horizontally, and inversion or tilting is strictly prohibited to prevent the cable from falling off the cable reel. The compartments and cargo holds of transport vehicles or ships should be kept clean and dry, without sharp objects and corrosive substances. During transportation, measures for moisture-proof, sun-proof and rain-proof should be taken, such as covering the cable with a tarpaulin to avoid the cable being affected by bad weather. At the same time, traffic rules and transportation regulations must be observed to ensure transportation safety.

Transportation Responsibility: The transporter shall be responsible for the transportation process of the cable and ensure that the cable is delivered to the destination on time and safely. Before transportation, the transporter and the shipper shall jointly inspect the packaging and quantity of the cable, and sign for handover after confirmation. If the cable is damaged or lost during transportation, the transporter shall compensate in accordance with relevant regulations.

Delivery Process: After the user places an order, the manufacturer will arrange production in a timely manner or retrieve cables of corresponding specifications from the inventory. Before delivery, the cable will undergo a final inspection to ensure that the product quality meets the requirements. Then, packaging is carried out according to the packaging method required by the user, and the transporter is contacted to arrange transportation. When delivering the goods, information such as the model, specification, quantity, transportation method, and estimated arrival time of the cable will be notified to the user so that the user can prepare for receipt. At the same time, product certificates, inspection reports, packing lists and other documents will be attached with the goods.

Delivery Time: For cables in stock, delivery can usually be made within 3-5 working days after receiving the order. For orders that need to be produced, the delivery time depends on the production progress, and production and delivery are generally completed within 10-15 working days. The manufacturer will try its best to shorten the delivery time to ensure that users can receive the goods in a timely manner. In case of special circumstances leading to delayed delivery, the manufacturer will communicate with the user in a timely manner, explain the reason, and negotiate a solution.

Delivery Tracking: The manufacturer will provide users with delivery tracking services, and users can query the transportation status of the cable through the logistics number. During transportation, if any abnormal situation occurs, the manufacturer will communicate and coordinate with the transporter in a timely manner to ensure that the problem is solved in a timely manner.

Sample Provision: In order for users to intuitively understand the product quality and performance before purchasing, the manufacturer can provide samples. Users can apply for samples from the manufacturer, specifying the model, specification and other information of the required samples. After receiving the application, the manufacturer will arrange for sample delivery within 3-5 working days.

Sample Fees: The cost of samples is usually borne by the user, including the production cost and mailing cost of the samples. For long-term cooperative customers or potential customers with large orders, the manufacturer may reduce or exempt the sample fee, and the specific situation can be negotiated with the manufacturer. The sample fee can be paid by bank transfer, online payment, etc.

Sample Testing: After receiving the samples, users can conduct various performance tests on the samples, such as insulation resistance test, conductor resistance test, voltage resistance test, etc., to verify whether the samples meet the use requirements. If there is any doubt or dissatisfaction with the samples, users can communicate with the manufacturer in a timely manner, and the manufacturer will provide corresponding solutions according to the feedback.

Quality Assurance: The manufacturer provides a 2-year quality guarantee period for this series of cables from the date of leaving the factory. During the quality guarantee period, if the cable fails due to its own quality problems, the manufacturer is responsible for free repair or replacement. If the failure is caused by improper use, incorrect installation, man-made damage, etc., the manufacturer will not assume the responsibility of free warranty, but can provide paid maintenance services.

Technical Support: The manufacturer has a professional technical team to provide users with comprehensive technical support. Users can contact technical personnel through phone, email, online customer service, etc. when encountering any technical problems during cable installation, use and maintenance. Technical personnel will promptly answer questions and provide professional solutions. At the same time, the manufacturer will also regularly organize technical training to introduce relevant knowledge and use skills of cables to users.

After-sales Service Response: The manufacturer has established a sound after-sales service response mechanism. After receiving feedback from users, after-sales service personnel will respond within 24 hours and arrange personnel to handle the problem according to the severity and actual situation of the problem. For emergency situations, technical personnel will be dispatched to the site for handling as soon as possible to reduce user losses.

Complaint Handling: If users have any complaints about product quality or after-sales service, the manufacturer will take them seriously and conduct timely investigations and handling. After receiving a complaint, a handling opinion will be given within 3 working days, and communication and negotiation will be conducted with the user until the user is satisfied. The manufacturer will continuously summarize experience, improve product quality and service level, and improve user satisfaction.