I. Information Related to the Product Itself
(I) Specification Parameters
XLPE
Copper Core single - core multi - strand flexible
Wire Cable has clear and diverse specification parameters, which provide an accurate basis for its application in different scenarios.
The conductor specifications of this cable cover 25mm², 50mm², 70mm², 120mm², 240mm² and other types. The current - carrying capacity corresponding to different specifications is different. The continuous current - carrying capacity of 25mm² cable under standard working conditions is about 105A, 50mm² is about 160A, 70mm² is about 200A, 120mm² is about 280A, and 240mm² is about 420A. This enables cables of different specifications to adapt to power consumption requirements of different powers, and corresponding suitable specifications can be found from small - power equipment to high - power industrial equipment.
Its rated voltage is usually 0.6/1kV. This voltage level meets the standards of low - voltage power distribution systems and can be well matched with common low - voltage power distribution equipment, ensuring the stability of power during transmission and avoiding faults due to voltage mismatch.
In terms of insulation performance, the insulation resistance of the XLPE insulation layer is extremely high. The insulation resistance at room temperature can reach more than 10¹⁴Ω·m, and the insulation breakdown strength is greater than 20kV/mm, which can effectively prevent current leakage and ensure the safety of power transmission. At the same time, the long - term allowable working temperature of the XLPE insulation layer is 90℃, and the allowable working temperature can reach 250℃ in case of a short circuit (the maximum duration does not exceed 5 seconds), which can maintain stable insulation performance when the power load fluctuates or a short - term fault occurs.
The
Flexibility parameter of this cable is also very excellent. Its multi - strand structure makes its minimum bending radius small, usually 6 - 8 times the outer diameter of the cable (there are slight differences in different specifications). This characteristic allows it to be easily laid in narrow spaces or complex paths without being damaged due to bending.
In the construction field, cables of 25mm² and 50mm² specifications are ideal for indoor power distribution. For ordinary residential houses, 25mm² cables can be used for power distribution of lighting and sockets in living rooms, bedrooms and other areas, and can meet the power demand of daily household appliances; 50mm² cables are suitable for areas with concentrated high - power electrical appliances such as kitchens and bathrooms, and can carry the simultaneous operation of water heaters, induction cookers and other equipment. In commercial buildings such as shopping malls and office buildings, 70mm² specification cables can be used for the main power distribution lines of floors, connecting floor distribution boxes with branch lines in various areas to ensure the power supply of the entire floor.
In the industrial field, cables of 120mm² and 240mm² specifications play an important role. In mechanical processing workshops, 120mm² cables can be used for power supply of high - power production equipment such as CNC machine tools and stamping equipment. Their good conductivity and current - carrying capacity can ensure the stable operation of the equipment; 240mm² cables are suitable for the main lines from the factory's substation to the workshop's main distribution box, as well as the power distribution of ultra - high - power equipment such as large industrial boilers and central air - conditioning hosts, meeting the high - load power demand in industrial production.
It can also be seen in the new energy field. In photovoltaic
Power Stations, cables of 25 - 70mm² specifications can be used for the connection between photovoltaic modules and the lines from the combiner box to the inverter, and their flexibility is convenient for laying in photovoltaic arrays; in wind farms, cables of 120mm² and above specifications can be used for power transmission inside wind turbines, adapting to the complex laying environment inside wind turbines.
In addition, it is also used in municipal engineering. For example, in the power distribution lines of traffic signal systems on urban roads, cables of 25 - 50mm² specifications can be selected according to the power of signal lights; in the power distribution system of underground parking lots, 70mm² specification cables can meet the power transmission demand of lighting, ventilation and other equipment.
The material selection and style design of XLPE copper core single - core multi - strand
Flexible Wire cable are closely related to its performance and use, providing a guarantee for its stable operation and convenient use.
The conductor is made of high - purity copper material with a purity of more than 99.95%, which makes it have excellent conductivity and extremely low resistivity, and can minimize energy loss in the power transmission process. The multi - strand structure is formed by stranding multiple fine
Copper Wires. The diameter of the fine copper wires is usually 0.2 - 0.5mm. A specific pitch is used during stranding, which not only ensures the flexibility of the conductor, but also enhances the mechanical strength of the conductor, making it not easy to break during bending and laying. The surface of the
Copper Conductor is treated with bright annealing, without oxide layer and burrs, and can be closely combined with the XLPE insulation layer to avoid local overheating caused by poor contact.
The insulation layer uses XLPE (cross - linked polyethylene) material. This material is cross - linked by chemical or physical methods to form a three - dimensional network molecular structure, which greatly improves its mechanical properties, aging resistance and chemical corrosion resistance. Compared with traditional polyvinyl chloride
Insulation Materials, the XLPE insulation layer has better temperature resistance, will not soften and deform in high - temperature environments, and has low dielectric loss, which can reduce reactive power loss in power transmission. At the same time, XLPE material has good water resistance and can maintain stable insulation performance even in humid environments.
In terms of style, the cable has a single - core structure and is round as a whole. The single - core structure reduces the volume and weight of the cable, facilitating transportation and laying; the round structure makes the cable stress evenly, and can disperse the force to the entire section when subjected to external pressure, reducing the risk of local damage. The outer surface of the cable is smooth and flat, with clear marks, including model, specification, rated voltage, manufacturer and other information, which is convenient for identification and traceability. In addition, the color of the cable is usually black or gray. These two colors are dirt - resistant and can resist ultraviolet aging to a certain extent, and are suitable for various indoor and outdoor environments.
(IV) Production Process
The production process of XLPE copper core single - core multi - strand flexible wire cable is rigorous and complex, and each link has strict quality control to ensure that the product meets relevant standards and use requirements.
Conductor stranding is the first step of production. High - purity copper rods are drawn into fine copper wires of the required diameter through a wire drawing process. During the wire drawing process, the wire drawing speed and die precision are strictly controlled to ensure that the diameter of the copper wires is uniform and the surface is smooth. Then, the fine copper wires are stranded by a stranding machine according to the designed number of strands. During stranding, stable tension and an appropriate pitch are maintained to make the
Stranded Conductor structure compact and round, and at the same time ensure the flexibility of the conductor. After stranding, the conductor is annealed to eliminate the internal stress generated during the stranding process and further improve the flexibility and conductivity of the conductor.
The insulation extrusion link is crucial. First, the XLPE particles are dried to remove the moisture in the particles (the moisture content must be controlled below 0.02%) to avoid bubbles in the insulation layer. The dried XLPE particles are sent to the extruder, melted at a set temperature (usually 120 - 150℃), and evenly coated on the outside of the conductor through a special extrusion die to form an insulation layer. During the extrusion process, the extrusion speed, temperature and pressure are accurately controlled to ensure that the thickness of the insulation layer is uniform (the deviation does not exceed ±0.1mm), the concentricity with the conductor is high (the eccentricity does not exceed 10%), and the surface is smooth and flawless.
Insulation cross - linking is a key step to ensure the insulation performance of XLPE. XLPE molecules are formed into a three - dimensional network structure by means of irradiation cross - linking or chemical cross - linking. Irradiation cross - linking irradiates the insulation layer with high - energy electron beams generated by an electron accelerator to trigger a cross - linking reaction; chemical cross - linking adds a cross - linking agent to the XLPE particles, and the cross - linking agent is decomposed and triggers cross - linking by heating after extrusion. The mechanical strength, temperature resistance and aging resistance of the cross - linked insulation layer are significantly improved.
The finished product inspection link is essential. A series of performance tests are carried out on the cable, including conductor DC resistance test (to ensure compliance with relevant standards), insulation resistance test (not less than 1000MΩ·km at room temperature), voltage withstand test (no breakdown for 1min under 1.8kV voltage), partial discharge test (discharge capacity not more than 10pC), etc. At the same time, check the appearance size and label clarity of the cable. Only cables that pass all test items can leave the factory.
II. General Product Information
(I) Packaging
The packaging design of XLPE copper core single - core multi - strand flexible wire cable focuses on protecting the integrity of the cable during storage, transportation and handling, and at the same time takes into account the convenience of packaging and the clarity of identification.
For cables with large length (usually 100 meters and above), wooden or metal cable reels are used for packaging. The diameter of the cable reel is determined according to the cable specification. Cables of 25 - 70mm² generally use cable reels with a diameter of 800 - 1200mm, and cables of 120 - 240mm² use cable reels with a diameter of 1200 - 1600mm to ensure that the bending radius of the cable when winding meets the requirements. The cable is neatly wound on the cable reel, and appropriate tension is maintained during winding to avoid loose,
Twisted Cables or mutual friction, which may damage the insulation layer and conductor. Both sides of the cable reel are equipped with baffles, and the height of the baffles is higher than the winding height of the cable to prevent the cable from slipping.
The outside of the cable reel will be tightly wrapped with a plastic film to form a moisture - proof and dust - proof protective layer to prevent the cable from getting damp and contaminated with dust. For cables that need long - distance transportation or storage in humid environments, a layer of waterproof canvas is covered outside the plastic film to further enhance the moisture - proof and sun - proof performance.
A detailed label is pasted on the baffle of the cable reel. The label indicates the product name, specification, length, production batch number, production date, rated voltage, implementation standard, manufacturer name and contact information, etc. At the same time, warning signs such as "Handle with Care", "Moisture - proof", "Sun - proof" and "Do Not Press Heavily" are also marked on the label to remind relevant personnel to operate in a standardized way.
For cables with small length (usually 10 - 50 meters), solid cartons are used for packaging. Foam liners or bubble films are placed inside the cartons to fix the cables in them to prevent damage due to collision during transportation. Relevant product information and warning signs are also marked on the outside of the cartons.
(II) Transportation
The transportation of XLPE copper core single - core multi - strand flexible wire cable must follow strict specifications to ensure that the cable is not damaged during transportation and its performance is stable.
The transportation method is selected according to the transportation distance, the number and specification of cables. Long - distance transportation and large quantities of cables (especially those with 120mm² and above specifications) usually adopt railway transportation or road freight. During railway transportation, the cable reels are placed stably in the freight carriage, and steel wire ropes or special fastening belts are used to fix the cable reels at the bottom of the carriage to prevent shaking, tilting or collision during transportation. For road freight, trucks with sufficient carrying capacity are selected. The carriage must be flat, clean and free of sharp debris. An appropriate gap is left between the cable reels, and they are separated by buffer materials.
Short - distance transportation or small quantities of cables can use small trucks or logistics vehicles. Special hoisting equipment (such as forklifts, cranes) is used when loading and unloading cables. The hoisting point is selected at the central axis of the cable reel. Hoisting from the side of the cable reel or the cable itself is strictly prohibited to prevent deformation of the cable reel or damage to the cable. Handle with care during loading and unloading to avoid violent collision.
Protective measures must be taken during transportation. Avoid the cable being exposed to the sun or rain. If it is transported in the open air, the cable reel must be covered with waterproof canvas; keep away from fire sources, heat sources and corrosive substances. Transport vehicles are not allowed to approach open fire areas and are not mixed with corrosive goods such as acids and alkalis; drive smoothly during transportation, avoid violent operations such as sudden braking and sharp turns, and reduce the impact on the cable.
During transportation, the transport personnel must regularly check the fixing of the cable reel and the integrity of the packaging, and timely handle if the cable reel is loose or the packaging is damaged. After arriving at the destination, check the cable appearance and packaging together with the receiver, and go through the handover procedures only after confirming that there is no damage.
(III) Delivery
The delivery process of XLPE copper core single - core multi - strand flexible wire cable focuses on efficiency and accuracy to ensure that customers can receive qualified products on time.
After the customer places an order, the sales department promptly enters the order information (including specification, quantity, delivery address, etc.) into the system and transmits it to the warehouse and production department. After receiving the order, the warehouse immediately checks the inventory. If there is stock, check whether the product specification and quantity are consistent with the order; if it is a customized product, the production department arranges production according to the order requirements, and the production progress is fed back to the sales department and customers in real time.
In the preparation stage, warehouse personnel conduct outgoing inspection on the cable, check whether the cable appearance is intact, whether the label information is accurate, and whether the packaging meets the requirements, and sort out quality certification documents such as product certificates and test reports. After passing the inspection, the cables and related documents are neatly placed in the waiting area for delivery.
Before delivery, the logistics department selects an appropriate transportation method and transportation company according to the order information and customer requirements, signs a transportation contract, and clarifies matters such as transportation time, transportation route and cargo insurance. For urgent orders, priority is given to arranging delivery, and transportation resources are coordinated to ensure shipment within the agreed time.
After the goods are shipped, the logistics department promptly informs the customer of the shipping information (such as the name of the transportation company, waybill number, estimated arrival time, etc.) by SMS, email, etc., to facilitate the customer to track the dynamics of the goods. The warehouse retains shipping records (outbound orders, transportation contracts, etc.) for future reference.
If abnormal situations occur during the shipping process (such as insufficient inventory, transportation delays, etc.), the sales department promptly communicates with the customer, explains the situation and negotiates solutions (such as adjusting the shipping time, replacing specifications, etc.) to protect the customer's rights and interests.
(IV) Samples
To help customers understand the performance and quality of XLPE copper core single - core multi - strand flexible wire cable before formal procurement, the company provides sample services. The samples are consistent with mass - produced products in terms of specification, material and performance.
Customers can apply for samples through sales personnel, official website, customer service hotline and other channels. When applying, they need to provide information such as the specification (such as 25mm², 120mm², etc.), quantity (usually 1 - 3 meters), purpose and contact information of the required samples. Sample applications from customers with clear purchase intentions will be processed first.
Samples are prepared in strict accordance with mass production standards. Special tools are used when cutting cables to ensure flat cuts and no burrs. The two ends of the samples are sealed to prevent moisture. Samples are packaged in small sealed bags or small cable reels. Information such as sample specification and production batch number is marked on the packaging, and sample descriptions and simple test reports are attached.
In terms of sample fees, for potential major customers or customers with clear purchase plans, samples can be provided free of charge, and only express fees are charged; for general consulting customers, a small amount of sample fees (including material and processing fees) are charged. If a purchase is made later, the sample fee can be deducted from the payment.
Samples are usually shipped within 3 - 5 working days after receiving the application, and an appropriate express method is selected according to the customer's location. After the samples are shipped, the express waybill number is promptly informed to the customer, and the customer can track the logistics information. After receiving the samples, if the customer has any questions, technical personnel will provide professional consulting services.
(V) After - sales Service
The after - sales service system of XLPE copper core single - core multi - strand flexible wire cable is perfect, providing customers with all - round support and solving problems encountered in the use process.
The product warranty period is 18 months from the date of delivery. During the warranty period, if the cable fails due to its own quality problems (such as insulation layer breakdown, conductor breakage and other faults not caused by human factors), customers can apply for free repair or replacement with the purchase certificate and quality certification documents.
After receiving the customer's after - sales application, the after - sales department responds within 24 hours and arranges technical personnel to communicate with the customer to understand the fault situation (such as fault phenomenon, use environment, etc.). Technical personnel make a preliminary judgment on the cause of the fault
English
Español
Portugues
Pусский
العربية
ไทย
Türk dili
Indonesia
Tiếng Việt
Téléphone
E-mail