Detailed Introduction to Copper Cable Cu/XLPE/PVC/Swa/PVC-Fr-UV-Black
I. From the Perspective of the Product Itself
(I) Specification Parameters
This copper cable has a specification of 3cx16+16 Sqmm, a temperature resistance grade of 90℃, and a rated voltage of 0.6/1kV, belonging to the category of medium and
Low Voltage Cables. Among them, each of the 3 main cores has a cross-sectional area of 16 Sqmm, suitable for power transmission in three-phase circuits; the additional
1 Core also has a cross-sectional area of 16 Sqmm, serving as a neutral wire, which can balance the three-phase current and ensure the stable operation of the circuit.
In terms of current-carrying capacity, this cable performs excellently. When laid in air, the long-term allowable current-carrying capacity is approximately 65A; when laid in soil, due to the better heat dissipation conditions of the soil, the long-term allowable current-carrying capacity can reach 75A, which can meet the needs of various medium and
Low Voltage Power consumption scenarios.
The insulation layer of the cable has a thickness of 1.4mm and is made of cross-linked polyethylene (XLPE) material, which has good insulation performance. At a working temperature of 90℃, the insulation resistance can still remain above 1000MΩ, which can effectively block current and prevent electric leakage accidents.
The outer diameter of the cable is about 38mm, with an overall compact structure. The bending radius is an important parameter during cable installation. Its static bending radius is not less than 12 times the cable outer diameter, and the dynamic bending radius is not less than 20 times the cable outer diameter. This standard must be strictly followed during installation to avoid damage to the cable due to excessive bending.
(II) Characteristic Uses
Industrial Equipment Power Distribution
In industrial production, various small and medium-sized mechanical equipment such as CNC machine tools, fans, and water pumps have stable and moderate power demand. The 3 main cores of this cable can provide three-phase power supply, and the neutral wire can ensure current balance during the operation of the equipment, ensuring the normal operation of the equipment. Its good temperature resistance and mechanical strength can adapt to complex environments in industrial workshops, such as high temperature and dust, providing reliable power support for industrial equipment.
Commercial Building Branch Lines
Commercial buildings such as large shopping malls, office buildings, and hotels have a large number of internal electrical equipment, including lighting, air conditioners, elevators, and office equipment. This cable can be used as a branch line to distribute power from the main distribution trunk line to power consumption points in various areas. Its compact structure and good bending performance facilitate laying in bridges and pipelines inside the building, meeting the requirements of commercial buildings for
Flexibility and safety of power distribution.
Outdoor Lighting Systems
Outdoor lighting systems such as urban road street lamps and square landscape lamps are exposed to outdoor environments for a long time and face various natural factors such as wind, sun, and rain. The outermost PVC-Fr-UV-Black sheath of this cable has flame retardant and ultraviolet resistant properties, which can effectively resist the erosion of harsh outdoor environments and delay the aging rate of the cable. At the same time, the steel wire armoring (Swa) enhances the mechanical strength of the cable, which can withstand certain external impacts and ensure the stable power supply of the outdoor lighting system.
Small Municipal Engineering
In some small municipal projects, such as power distribution lines in parks and power supply for public facilities in residential areas, this cable can also play an important role. It can transmit power from the municipal power grid to various electrical equipment, and its adaptability to various laying methods can meet the installation needs of different engineering scenarios, providing power guarantee for the smooth development of municipal engineering.
(III) Material and Style
Conductor Material
The conductor is made of high-purity copper (Cu) with a purity of more than 99.95%. High-purity copper has excellent conductivity, which can reduce resistance, reduce energy loss during power transmission, and improve power transmission efficiency. At the same time,
Copper Conductors have good ductility and mechanical strength, and are not easy to break during the production, transportation, installation, and use of the cable, which can ensure the structural stability and reliability of the conductive performance of the cable.
Insulation Layer Material
The insulation layer is made of cross-linked polyethylene (XLPE) material. After cross-linking treatment, XLPE forms a three-dimensional network structure, which gives it excellent temperature resistance and allows it to work stably for a long time at a high temperature of 90℃. Compared with traditional polyethylene, XLPE has higher insulation resistance, lower dielectric loss, and better insulation performance, which can effectively block current and prevent electric leakage and short-circuit accidents. In addition, XLPE also has good anti-aging performance and chemical stability, can resist the erosion of various chemical substances, and extend the service life of the cable.
Inner Sheath Material
The cross-linked polyethylene (XLPE) outer layer is wrapped with a polyvinyl chloride (PVC) sheath with a thickness of 0.8mm, which mainly plays a preliminary protective role. PVC material has certain mechanical strength and flexibility, which can protect the insulation layer from slight mechanical damage and pollution from the external environment, such as dust and moisture. At the same time, the
PVC Sheath can also play a certain flame retardant role, improving the safety of the cable.
Armoring Material
The intermediate steel wire armoring (Swa) is made of high-quality low-carbon steel strip with a thickness of 0.5mm. Steel wire armoring significantly improves the mechanical strength and impact resistance of the cable, and can effectively resist external damage during laying and use, such as extrusion, collision, and stretching. In addition, steel wire armoring can also play a certain shielding role, reducing the impact of external electromagnetic interference on the transmission performance of the cable.
Outer Sheath Material
The outermost layer is a black PVC sheath with flame retardant (Fr) and ultraviolet (UV) resistant properties, with a thickness of 1.2mm. This sheath material is added with special flame retardants and ultraviolet resistant additives, which gives it good flame retardant performance and can delay the spread of fire in case of fire; at the same time, it can effectively resist ultraviolet radiation and prevent the sheath from aging and cracking due to long-term exposure to sunlight. The black appearance design not only has certain dirt resistance, but also can blend with the outdoor environment, with a certain degree of concealment.
Style Design
The cable is cylindrical in overall shape, with distinct structural layers, from the inside to the outside, which are copper conductor, XLPE insulation layer, inner PVC sheath, steel wire armoring, and outer PVC-Fr-UV-Black sheath. The surface of the cable is smooth and flat, without obvious protrusions or depressions, which is convenient for operations such as pipe threading and dragging during installation, reducing laying resistance and improving construction efficiency.
(IV) Production Process
Conductor Production
First, high-purity copper ingots are smelted to remove impurities, obtaining copper water that meets the purity requirements. Then, the copper water is cast into copper rods through a continuous casting process, and the diameter of the copper rods is accurately adjusted according to the specifications of the
Cable Conductor. Next, the copper rod is drawn into
Copper Wires with a diameter of about 1.7mm by a wire drawing process. During the wire drawing process, the drawing speed, temperature, and lubrication conditions are strictly controlled to ensure the dimensional accuracy and mechanical properties of the copper wires. After that, multiple copper wires are stranded according to a certain stranding method to form a conductor with a cross-sectional area of 16 Sqmm. During the stranding process, the tightness and roundness of the conductor must be ensured to improve the conductivity and mechanical strength of the conductor.
Insulation Layer Extrusion
The extrusion molding process is used to wrap the XLPE insulation layer around the conductor. First, XLPE granular material is added to the hopper of the extruder. After being heated and melted, the molten XLPE material is transported to the mold through the screw of the extruder. The size of the mold is accurately designed according to the cable specifications to ensure uniform thickness of the insulation layer, with the thickness controlled at about 1.4mm. During the extrusion process, the extrusion temperature (generally between 180-200℃), extrusion speed, and pressure are strictly controlled to make the molten XLPE material evenly coat the surface of the conductor, forming a continuous and dense insulation layer. After extrusion, the insulation layer is cross-linked, usually by warm water cross-linking or steam cross-linking, so that the XLPE molecules form a three-dimensional network structure, thereby improving its temperature resistance and insulation performance.
Inner Sheath Extrusion
A polyvinyl chloride (PVC) inner sheath is extruded outside the insulation layer. PVC granular material is added to the extruder, heated and melted, and then evenly coated on the surface of the insulation layer through an extrusion mold, with the sheath thickness controlled at 0.8mm. The extrusion parameters are controlled to ensure that the sheath has uniform thickness, a smooth surface, and is closely combined with the insulation layer without defects such as bubbles and impurities. The inner sheath is used to protect the insulation layer from damage during subsequent processing and laying.
Steel Wire Armoring
The steel wire armoring is applied outside the inner sheath by the wrapping process. High-quality low-carbon steel strips are wrapped around the outer layer of the cable at a certain angle and tension through a special armoring machine. The width and wrapping pitch of the steel strip are accurately calculated according to the outer diameter of the cable to ensure the tightness and uniformity of the armoring, with the steel strip thickness of 0.5mm. During the armoring process, it is necessary to ensure that the overlap between the steel strips is uniform and avoid gaps to enhance the mechanical strength and impact resistance of the cable.
Outer Sheath Extrusion
A black PVC outer sheath with flame retardant and ultraviolet resistant properties is extruded outside the steel wire armoring. PVC material added with flame retardants and ultraviolet resistant additives is added to the extruder, heated and melted, and then evenly coated on the surface of the armoring layer through an extrusion mold, with the sheath thickness of 1.2mm. The extrusion temperature, speed, and pressure are strictly controlled to ensure that the sheath has uniform thickness, a smooth surface, and is closely combined with the armoring layer without defects such as bubbles and impurities. The outer sheath can further protect the cable from external environmental erosion and improve the safety and service life of the cable.
Quality Inspection
Strict quality inspection is carried out in each link of the production process. For the conductor, parameters such as its diameter, resistivity, and tensile strength are tested to ensure that its conductivity and mechanical properties meet the standard requirements; for the insulation layer, properties such as its thickness, insulation resistance, voltage resistance, and temperature resistance are tested to ensure its insulation effect and stability; for the inner sheath, steel wire armoring, and outer sheath, parameters such as their thickness, appearance quality, and mechanical strength are tested to ensure the effectiveness of their protective role. The finished cable also needs to undergo partial discharge tests, aging tests, bending tests, etc., to comprehensively inspect the performance of the cable. Only cables that pass all tests can leave the factory for sale.
II. From the Perspective of General Product Information
(I) Packaging
Packaging Materials
This cable is usually packaged with wooden cable reels. Wooden cable reels have relatively low cost and light weight, suitable for medium and short-distance transportation and small-batch delivery. For long-distance transportation or large-batch delivery, steel cable reels can also be used according to customer needs. Steel cable reels have higher strength and stronger bearing capacity, which can better protect the cable from damage during transportation.
Packaging Method
When packaging, the cable is neatly wound on the cable reel, arranged tightly and flatly, avoiding twisting, crossing, and overlapping, so as to prevent the cable from being squeezed and worn during transportation and storage. The outermost layer of the cable is wrapped with a plastic film, which has good moisture-proof and dust-proof performance and can protect the cable from pollution by the external environment. Wooden or metal baffles are added to the sides of the cable reel to prevent the cable from slipping and ensure the stability of the cable during transportation and storage. A shaft sleeve is installed at the central shaft hole of the cable reel to facilitate handling and loading/unloading with equipment such as forklifts and cranes.
Packaging Marks
Relevant product information is clearly and firmly marked on the side and end face of the cable reel, including product name (copper cable Cu/XLPE/PVC/Swa/PVC-Fr-UV-Black), specification parameters (3cx16+16 Sqmm, 90℃), length, rated voltage, implementation standard, production date, production batch number, manufacturer's name, address, contact information, etc. These marks facilitate users to identify product information when receiving and inspecting the cable, and are also conducive to product traceability and quality management.
(II) Transportation
Transportation Mode
According to the transportation distance, quantity of cables, and customer needs, a suitable transportation mode is selected. For medium and short-distance transportation with small batches, road transportation is adopted. Road transportation has high flexibility and can realize door-to-door service, facilitating customers to receive goods. For long-distance transportation or large-batch delivery, railway transportation can be used. Railway transportation has large transport capacity, low cost, and stable transportation process, which can effectively ensure the safety of the cable. For urgent orders, car express transportation can also be used to shorten the transportation time and ensure the timely delivery of goods.
Transportation Precautions
Before transportation, carefully check the packaging of the cable to ensure that the cable reel is intact, the cable is tightly wound, and the plastic film is tightly wrapped. During transportation, the cable reel must be placed horizontally, and tilting, inverting, or stacking are strictly prohibited to prevent the cable reel from rolling and colliding, which may cause damage to the cable. The transport vehicle should drive smoothly, avoiding violent operations such as sudden braking and sharp turns, to reduce the shaking of the cable reel. At the same time, measures should be taken to prevent rain, sun, and moisture. A rain cloth can be covered on the cable reel to avoid the cable being soaked by rain, exposed to the sun, or damp, which may affect the performance of the cable. When loading and unloading the cable, special lifting equipment such as cranes and forklifts must be used. During loading and unloading, handle with care to avoid impact and damage to the cable and cable reel.
Transportation Fixation
To prevent the cable reel from moving and rolling during transportation, it is necessary to fix it firmly. Steel wire ropes, iron chains, etc. can be used to tightly fix the cable reel on the carriage of the transport vehicle. The fixed points should be selected at the solid parts of the cable reel, such as the reinforcing ribs on the edge of the reel, to ensure reliable fixation. For long-distance transportation, buffer materials such as wooden boards and rubber pads can also be placed between the cable reels to reduce mutual collision and friction between the cable reels.
(III) Delivery
Delivery Process
After the customer places an order and makes payment, the sales department will promptly transmit the order information to the warehouse and production department. Warehouse personnel prepare goods according to the order information. For stock products, it is necessary to carefully check whether the specifications and quantity of the products are consistent with the order; for customized products, the production department organizes production according to the order requirements. After production is completed, the products are inspected by the quality inspection department and then transferred to the warehouse. After packaging the products, the warehouse personnel contact the transportation company to determine the transport vehicle, transportation route, and transportation time. Before delivery, the delivery information, such as the name of the transportation company, license plate number, waybill number, estimated arrival time, etc., is promptly informed to the customer to facilitate the customer's preparation for receiving the goods.
Delivery Time
For this specification of cables in stock, delivery will generally be completed within 1-3 working days after receiving the customer's order and confirming payment. For cables that need to be produced according to the customer's special requirements, the delivery time will be determined according to the production cycle, usually 7-10 working days. The specific delivery time will be communicated and confirmed with the customer in advance, so that the customer can clearly understand the production progress and estimated delivery time of the goods.
Delivery Tracking
After the cable is delivered, the company will track the transportation status of the goods throughout the process. By maintaining close contact with the transportation company, timely obtain information such as the location and transportation progress of the goods. If there are abnormal situations during transportation, such as traffic jams, bad weather, etc., which cause transportation delays, the customer will be notified immediately, and active coordination with the transportation company will be made to try to shorten the delay time and ensure that the goods can be delivered to the customer as soon as possible.
(IV) Samples
Sample Provision
To allow customers to better understand the quality, performance, and appearance of this copper cable, the company can provide samples for customers. The length of the sample is generally 1-2 meters, and customers can intuitively check the structure, material, color, etc. of the cable through the sample to verify whether the various performances of the cable meet their own needs.
Sample Cost
The samples themselves are provided to customers free of charge, but customers need to bear the express delivery fee of the samples. For large customers with clear cooperation intentions or long-term partners, the company will reduce or exempt the express delivery fee of the samples according to the actual situation to promote cooperation between the two parties.
Sample Delivery
After receiving the customer's sample request, the company will prepare the sample within 1-2 working days, and properly package the sample. When packaging, the specification parameters and other information will be clearly marked on the sample to prevent damage or confusion during transportation. Then, the sample will be sent to the customer by a reliable express method, and the express tracking number will be promptly informed to the customer to facilitate the customer's inquiry about the transportation status of the sample.
(V) After-sales Service
Quality Assurance
The company promises that this copper cable produced and sold meets relevant national standards and industry specifications, and the product quality guarantee period is 1-3 years. During the quality guarantee period, if the cable has quality problems caused by non-human factors, such as insulation layer aging, sheath damage, and conductor breakage, the company will provide free repair or replacement services for customers.
Technical Support
The company has a professional technical team to provide customers with comprehensive technical support. Customers who encounter any technical problems during the installation, laying, or use of the cable can contact technical personnel at any time through phone calls, emails, online consultations, etc. The technical personnel will promptly provide detailed answers and professional guidance. For some complex technical issues, the company can arrange technical personnel to conduct on-site guidance and assistance to ensure the installation quality and normal use of the cable.
Fault Handling
If customers find that the cable has faults during use, they should notify the company in a timely manner. After receiving the notification, the company will respond within 24 hours, arrange professional personnel to communicate with customers, understand the specific situation of the fault, analyze the causes based on the fault phenomenon, and formulate solutions. For faults that require on-site handling, technical personnel will be arranged to rush to the site for repair or replacement as soon as possible to minimize the losses caused by cable faults to customers.
Customer Feedback
The company attaches great importance to customers' feedback and has set up various customer feedback channels, such as customer service hotlines, emails, and online message boards. Customers can feedback any problems encountered during the use of the product and any suggestions through these channels. The company will arrange special personnel to sort out, analyze, and handle customers' feedback and reply to customers within a specified time. At the same time, the company will continuously improve product quality and service levels based on customers' feedback to improve customer satisfaction.
In summary, this copper cable with the specification of 3cx16+16 Sqmm, Cu/XLPE/PVC/Swa/PVC-Fr-UV-Black, has significant advantages in terms of specification parameters, characteristic uses, material styles, and production processes, and can meet the needs of various medium and low voltage power consumption scenarios such as industrial equipment power distribution, commercial building branch lines, and outdoor lighting systems. At the same time, the comprehensive services including packaging, transportation, delivery, samples, and after-sales provide customers with all-round guarantees, making it an ideal choice for medium and low voltage power distribution systems.
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