I. From the Perspective of the Product Itself
(1) Specification Parameters
The Ttu cables supplied by our factory offer a wide range of specifications, covering various Kcmil sizes such as 1000Mcm, 500Mcm, 400Mcm, 350Mcm, and 250Mcm. These different specifications are designed according to the varying needs of power transmission capacity, and can adapt to power transmission scenarios from small - power equipment to medium and large - scale projects.
In terms of parameters related to conductive performance, due to the use of
Pure Copper Conductors, their conductivity is extremely high. The conductivity of pure copper is leading among metals, which greatly reduces the loss of Ttu cables during current transmission. Specifically, under the same transmission conditions, compared with conductors of other materials, pure
Copper Conductors can reduce current loss by about 15% - 20%, ensuring the efficiency of power transmission.
In terms of insulation performance parameters, the insulation layer is composed of a combination of XLPE and PVC materials. XLPE material has excellent temperature resistance. Its long - term working temperature can reach 90℃, and the short - term overload temperature can reach 130℃, which can maintain a stable insulation effect within a wide temperature range. At the same time, the insulation resistance of XLPE is extremely high, usually above 10¹⁴Ω·cm, which effectively prevents current leakage. PVC material further improves the insulation reliability of the cable, and its insulation resistance can also reach a high level, ensuring the safe operation of the cable in different environments.
The rated voltage of the cable is 600V, which determines that it is suitable for low - voltage power transmission systems. At the voltage level of 600V, the cable can transmit power stably, meeting the needs of most low - voltage power consumption scenarios.
The design of the single - core structure also gives the cable certain advantages in installation parameters. Its bending radius is relatively small. For cables of different specifications, the bending radius is usually 6 - 8 times the outer diameter of the cable, which makes it more convenient to lay and arrange in some scenarios with limited space, such as narrow pipes and wall gaps, reducing the installation difficulty.
(2) Characteristic Uses
With its various specifications and excellent performance, Ttu cables have a wide range of characteristic uses in many fields.
In the field of industrial production, cables of different specifications have their own roles. Cables of 250Mcm and 350Mcm specifications are often used for power supply of small mechanical equipment, such as small machine tools and blowers in workshops. These equipment have relatively small power and low requirements for power transmission capacity. Small - specification Ttu cables can accurately meet their needs, provide reliable power support for the stable operation of the equipment, and ensure the continuous operation of the production line.
Cables of 400Mcm and 500Mcm specifications are suitable for power transmission of medium - sized industrial equipment and production lines. For example, in automobile manufacturing workshops, the power supply of welding robots, conveyor belts and other equipment can rely on cables of these specifications. They can withstand medium - power power transmission, ensuring that the equipment will not have insufficient or unstable power supply in high - intensity working conditions.
Cables of 1000Mcm specification play an important role in large - scale industrial projects. For example, high - power equipment such as steel - making equipment in large steel plants and reaction kettles in chemical plants have extremely high requirements for the capacity and stability of power transmission. Ttu cables of 1000Mcm specification can take on such a heavy responsibility and provide strong power guarantee for the normal operation of large - scale equipment.
In the field of construction engineering, Ttu cables also have important applications. In the power distribution system inside buildings, corresponding specifications of cables can be selected according to the power load of different floors and areas. For example, in ordinary floors of residential buildings, the electrical equipment is mainly lighting, household appliances, etc., and cables with specifications below 400Mcm can meet the needs; for areas with concentrated high - power equipment such as large central air - conditioning systems and elevators in commercial buildings, cables with specifications of 500Mcm and above are needed for power transmission to ensure stable power supply.
In terms of municipal facilities, Ttu cables have also been widely used. In the street lamp system of urban roads, appropriate specifications of cables can be selected according to the power and spacing of street lamps to ensure the normal lighting of street lamps. The traffic signal system has extremely high requirements for the stability of electricity. Even a short power outage may cause traffic chaos. Ttu cables can provide continuous and stable power for it, ensuring the normal operation of traffic lights. In addition, in municipal facilities such as urban water supply and drainage pumping stations, Ttu cables can also provide reliable power support for water pumps and other equipment, ensuring the normal operation of urban infrastructure.
(3) Material and Style
The conductor of Ttu cable is made of pure copper, which is strictly refined with a purity of more than 99.95%. This high - purity copper has excellent conductive performance and is an ideal material for power transmission. Pure copper also has good ductility. In the production process of the cable, it can be drawn into wires of various specifications and is not easy to break, ensuring the integrity of the conductor. At the same time, pure copper has certain corrosion resistance. In normal use environments, it is not easy to be oxidized and corroded, and can maintain good conductive performance for a long time, prolonging the service life of the cable.
The insulation layer is composed of two materials: XLPE and PVC. XLPE, namely cross - linked polyethylene, is a polyethylene material 经过 cross - linking treatment. After cross - linking, its molecular structure forms a three - dimensional network structure, which significantly improves the mechanical properties, heat resistance, chemical corrosion resistance and other properties of the material. It has excellent electrical insulation performance, low dielectric constant and low dielectric loss, which can effectively prevent current leakage and insulation breakdown. PVC, namely polyvinyl chloride, is a commonly used plastic material with good mechanical strength, wear resistance and weather resistance. The combination of XLPE and PVC as the insulation layer not only utilizes the excellent electrical performance and heat resistance of XLPE, but also relies on the mechanical strength and weather resistance of PVC, making the insulation layer of the cable more durable and reliable.
Ttu cable adopts a single - core structure style, which is relatively simple, consisting of a pure copper conductor and an insulation layer wrapped around it. The design of the single - core structure makes the production process of the cable relatively simple, which is conducive to improving production efficiency. In the process of installation and use, single -
Core Cables have better
Flexibility, especially in scenarios that require bending and 穿梭，which are easier to operate than multi - core cables. In addition, the single - core structure reduces the structural complexity inside the cable, reduces the probability of failure, and also facilitates later maintenance and repair.
(4) Production Process
The production process of Ttu cable adopts a series of advanced technologies to ensure the quality and performance of the product.
In the conductor production link, continuous casting and rolling processes are adopted. First, the pure copper raw material is melted in a melting furnace, and then the copper liquid is cast into copper rods through a continuous casting machine. During the casting process, the casting temperature and cooling rate are strictly controlled to ensure that the crystalline structure of the copper rod is uniform and internal defects are reduced. Then, the copper rod enters the rolling equipment for rolling, and through multiple rolling passes, the copper rod is drawn into
Copper Wires of the required specifications. During the rolling process, by adjusting the rolling force and rolling speed, the dimensional accuracy and surface quality of the copper wire are ensured, and the mechanical properties and conductive performance of the copper wire are further improved.
The insulation layer is made by extrusion molding process. For the XLPE insulation layer, first, the XLPE granular raw material is added into the extruder, heated and melted, and then evenly extruded and wrapped around the copper conductor through a mold. During the extrusion process, the extrusion temperature, extrusion speed and mold size are strictly controlled to ensure that the XLPE insulation layer has a uniform thickness and a smooth surface. After extrusion, the XLPE insulation layer is cross - linked, usually by means of warm water cross - linking or steam cross - linking, so that the XLPE molecules form a three - dimensional network structure to improve its performance.
A layer of PVC material is extruded outside the XLPE insulation layer, also using the extrusion molding process. The PVC granular raw material is added into another extruder, heated and melted, and then extruded and wrapped outside the XLPE insulation layer. By accurately controlling the extrusion parameters, it is ensured that the PVC layer and the XLPE layer are closely combined without bubbles or cracks, forming an integral insulation structure.
In the production process of the cable, a series of quality inspection processes are also carried out. Online testing equipment will conduct real - time monitoring of parameters such as the outer diameter of the cable, the thickness of the insulation layer, and the conductor resistance. Once an abnormality is found, the production parameters will be adjusted in time. The finished cables also need to undergo sampling inspection, including insulation resistance test, voltage resistance test, mechanical performance test, etc., to ensure that each batch of cables meets relevant standards and quality requirements.
In addition, attention is paid to cleaning and hygiene control in all links of production to avoid impurities entering the cable and affecting the performance of the cable. The production workshop adopts closed management and is equipped with an air purification system to ensure the cleanliness of the production environment. At the same time, regular maintenance and repair of production equipment are carried out to ensure the normal operation of the equipment and improve the stability and consistency of production.
II. From the Perspective of General Product Information
(1) Packaging
The packaging of Ttu cables is carefully designed to protect the cables from damage during storage and transportation and ensure the quality of the products.
Different packaging methods are adopted for cables of different specifications. Small - specification cables, such as 250Mcm and 350Mcm, are usually packaged in reels. High - strength wooden or plastic reels are selected, and the diameter of the reels depends on the length and specification of the cable, generally between 0.8 - 1.2 meters. The cable is neatly wound on the reel, and appropriate tension is maintained during winding to avoid loosening or excessive stretching of the cable. Baffles are installed on both sides of the reel to prevent the cable from sliding off from both sides of the reel. After winding, the entire reel is wrapped with plastic film to play a role in moisture proofing and dust proofing. Labels are also nailed on the edge of the reel, indicating the specification, length, model, production batch number, production date and other information of the cable.
For larger - specification cables, such as 400Mcm, 500Mcm and 1000Mcm, due to their large weight, they are packaged on wooden pallets. The cable is neatly wound into rolls, and the length of each roll is determined according to actual needs, generally 50 meters or 100 meters. Then the cable roll is placed on a wooden pallet, and the cable roll is fixed on the pallet with steel strips or high - strength plastic strips to ensure that it will not shift during transportation. Anti - slip pads are installed at the bottom of the pallet to prevent the pallet from sliding during handling. Similarly, the outside of the cable roll is wrapped with plastic film, and detailed label information is pasted on the pallet.
For exported Ttu cables, the packaging will be adjusted according to the requirements of the exporting country or region. For example, some countries have fumigation requirements for wooden packaging, so wooden reels and pallets will be fumigated and a fumigation certificate will be issued. At the same time, the labels on the packaging will be added with descriptions in English and other corresponding languages for the convenience of foreign customers' identification.
(2) Transportation
The transportation of Ttu cables needs to strictly abide by relevant regulations and procedures to ensure the safe transportation of the cables.
In terms of the choice of transportation mode, according to factors such as transportation distance, quantity and customer needs, road transportation, railway transportation and sea transportation can be adopted. For short - distance transportation and small batches of goods, road transportation is a more convenient choice, usually using trucks for transportation. The truck compartment needs to be clean, dry and free of sharp debris to avoid damaging the cable packaging. When loading, place the cable reels or pallets stably in the compartment, and fix them firmly with ropes or fixing devices to prevent collision and rolling due to bumps during transportation.
For long - distance transportation and large quantities of goods, railway transportation and sea transportation are more economical. Railway transportation uses boxcars or containers, which can provide better protection for cables and avoid being affected by the external environment. Sea transportation uses container transportation, and the cables are loaded in containers to ensure that they are not eroded by sea water, moisture and salt spray during sea transportation. In the container, the cables also need to be fixed to prevent displacement and collision.
During transportation, it is necessary to avoid the cables being exposed to direct sunlight, rain and snow immersion and extreme temperatures. Transport vehicles or containers should have good sunshade, rainproof and thermal insulation performance. In high temperature in summer, try to avoid transportation at noon, or take sunshade measures to prevent the cable insulation layer from aging due to high temperature; in low temperature in winter, pay attention to preventing the cable from freezing, especially in cold areas in the north, thermal insulation measures can be taken.
Escorts are also required during transportation. The escorts should be familiar with the characteristics of the cables and transportation requirements, and regularly check the fixing of the cables and whether the packaging is intact. If abnormal situations are found, measures should be taken in time to deal with them. At the same time, transportation records should be made, including transportation time, route, weather conditions, cable status and other information for traceability.
(3) Delivery
The delivery process of Ttu cables is rigorous and standardized to ensure that the products can be delivered to customers in a timely and accurate manner.
After the customer places an order, the sales department will promptly transmit the order information to the production department and the warehousing department. The production department organizes production according to the order requirements. If the specification required by the customer is a regular stock product, the warehousing department will directly prepare the goods; if it is a special specification or customized product, the production department will arrange the production plan to ensure that the production is completed within the specified time.
After receiving the delivery notice, the warehousing department will conduct a strict outgoing inspection of the products. The inspection contents include the specification, model, length, packaging situation of the cable, etc., to ensure that they are consistent with the order information. At the same time, check the product's quality certificate and other documents to ensure the quality of the delivered products.
Before delivery, the warehousing department will reasonably arrange the loading of goods according to the order quantity and transportation mode. For goods transported by road, coordinate appropriate trucks and assist drivers in loading and fixing; for goods transported by railway or sea, go through relevant procedures in accordance with the requirements of the transportation department and safely deliver the goods to the designated freight stations or ports.
When delivering goods, detailed delivery documents will be attached with the goods, including delivery notes, invoices, product quality certificates, inspection reports, etc. The delivery note indicates the name, specification, quantity, unit price, total price and other information of the product, which is convenient for customers to check and accept.
After delivery, the sales department will promptly inform the customer of the delivery information, including the name of the logistics company, the waybill number, the estimated arrival time, etc., so that the customer can prepare for receipt. At the same time, track the transportation status of the goods. If there is a transportation delay or abnormal situation, communicate and coordinate with the customer and the logistics company in time to ensure that the problem is solved in time.
(4) Samples
In order to allow customers to better understand the performance and quality of Ttu cables, our factory provides sample services.
Customers can apply for samples from the sales department by phone, email, online customer service, etc. When applying, it is necessary to provide detailed customer information, including company name, contact person, contact information, etc., as well as the specification, model and other information of the required samples. The sales department will review the sample application within 1 - 2 working days to confirm the rationality of the customer's needs.
For sample applications that meet the requirements, the production department or warehousing department will prepare corresponding samples. The length of the sample is generally 1 - 2 meters, which can meet the customer's needs for preliminary testing and evaluation of the cable's appearance, specification, material, etc. The packaging of the sample is similar to that of the formal product, but the word "sample" will be marked on the packaging for easy identification.
Samples are usually sent to customers by express delivery, choosing reputable and fast - moving express companies such as SF Express and Yuantong. In terms of sample fees, for customers with clear purchase intentions, samples are provided free of charge, and the express fee is borne by our factory; for customers who only conduct consultation and understanding, a certain sample fee and express fee may be charged, which can be negotiated with the sales department.
After receiving the samples, if customers have any questions or need further technical parameters and test reports, the sales and technical departments will provide timely support and answers. Through the trial and testing of samples, customers can more intuitively understand the performance of Ttu cables, providing a reference for subsequent purchasing decisions.
(5) After - sales Service
Our factory provides perfect after - sales service for Ttu cables to protect the legitimate rights and interests of customers and the normal use of products.
In terms of quality assurance, Ttu cables provide an 18 - month quality guarantee period from the date of delivery. During the quality guarantee period, if the product has quality problems caused by non - human factors, such as conductor breakage, insulation layer cracking, and decline in conductive performance, our factory will provide customers with free repair, replacement or return services. Customers need to provide purchase certificates and relevant proof of product quality problems. After confirmation by the technical department, the corresponding after - sales service procedures can be handled.
In terms of installation guidance, our factory's technical personnel can provide customers with professional installation guidance services. If customers encounter any technical problems during installation, they can consult technical personnel by phone, email, etc. at any time. The technical personnel will patiently answer and provide detailed installation suggestions. For large - scale engineering projects, our factory can send technical personnel to the site for installation guidance to assist customers in solving practical problems encountered during installation and ensure the installation
quality of the cables.
During the use of the products, if customers find any abnormal conditions of the cables, such as heating, peculiar smell, damage to the insulation layer, etc., they can contact our factory's after-sales service department in a timely manner. The after-sales service personnel will respond within 24 hours and arrange technical personnel to conduct on-site testing and fault diagnosis according to the situation. For problems that can be solved on-site, the technical personnel will handle them in a timely manner; for products that need to be returned to the factory for repair, logistics will be arranged for round-trip transportation, and the repair work will be completed as soon as possible.
In addition, our factory has established customer files, which record customer purchase information, product usage status, after-sales service records, etc. in detail, so as to better track the usage status of products and provide personalized services. Regular return visits to customers are conducted to understand their experience with the products and suggestions, so as to continuously improve product quality and service level. Through perfect after-sales service, customers can have no worries when using Ttu cables.
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