Details of 5KV, 8KV, 15KV 3C with Ground 250MCM, 350MCM Multiconductor XLPE PVC Power Cables
I. Core Information About the Product Itself
(1) Analysis of Specification Parameters
The specification parameters of 5KV, 8KV, 15KV 3C with ground 250MCM, 350MCM multiconductor XLPE PVC
Power Cables are the basis for their role in the medium and
Low Voltage Power transmission field. Each parameter has undergone careful design and strict testing to ensure stable operation in different scenarios.
Voltage Level: 5KV, 8KV, 15KV
"5KV, 8KV, 15KV" clearly defines the rated voltage range of this series of cables, all belonging to the category of medium and
Low Voltage Cables. 5KV cables are suitable for power transmission scenarios with relatively low power demand such as small industrial sites and low-rise buildings, and can meet the basic electricity needs in daily production and life; 8KV cables can be applied to medium-sized factories, high-rise residential communities, etc., to cope with slightly higher power transmission; 15KV cables are suitable for large industrial parks, municipal power trunk lines, etc., and can carry large-scale power transmission tasks. These different voltage levels enable this series of cables to flexibly adapt to different power systems and provide stable power support for diversified power consumption scenarios. In actual operation, they need to withstand the working voltage under the corresponding voltage level and possible overvoltage. Therefore, their insulation layers and other structures have good voltage resistance performance, which can effectively avoid breakdown.
Structural Design: 3C with Ground
"3C with ground" is an important structural feature of this series of cables. "3C" represents a three-core design, which can transmit three-phase electricity at the same time, greatly improving the efficiency of power transmission, reducing the trouble of laying multiple cables separately, and saving laying space and cost. A certain distance is maintained between the three cores, and each has an independent insulation layer, which can effectively avoid mutual interference and ensure the stability of power transmission. The setting of the
Ground Wire is the key to ensuring electrical safety. It is connected to the metal shielding layer or armor layer of the cable. When the cable has insulation damage, electric leakage and other faults, the ground wire can quickly conduct the fault current to the ground, thus avoiding electric shock accidents, and also providing signals for relay protection devices to cut off the power supply in time to protect power equipment from damage.
Conductor Specification: 250MCM, 350MCM
"250MCM, 350MCM" are units representing the cross-sectional area of the
Cable Conductor. MCM (thousand circular mils) is an internationally commonly used unit for conductor cross-sectional area, and 1MCM is approximately equal to 0.5067 square millimeters. The conductor cross-sectional area of 250MCM is about 126.675 square millimeters. This specification of conductor can carry a medium-sized current, suitable for scenarios with certain requirements on power transmission capacity but not particularly high, such as medium-sized shopping malls, ordinary office buildings, etc.; the conductor cross-sectional area of 350MCM is about 177.345 square millimeters, which can carry a larger current, suitable for places with large power demand, such as production lines of large factories, large stadiums, etc. The size of the conductor cross-sectional area directly affects the current-carrying capacity of the cable. The larger the cross-sectional area, the higher the current-carrying capacity and the more power that can be transmitted. This enables this series of cables to be selected according to different power requirements, improving the
Flexibility of their application.
(2) Characteristic Applications
5KV, 8KV, 15KV 3C with ground 250MCM, 350MCM multiconductor XLPE
PVC Power Cables have a wide range of applications in many fields with their unique performance and structural design, showing significant characteristic advantages.
Industrial Field
In industrial production, this series of cables plays an important role. For small factories, 5KV 250MCM cables can meet the power supply of small mechanical equipment in the workshop, such as sewing machines, small punch presses, etc.; medium-sized factories can choose 8KV 250MCM or
350mcm Cables to provide stable power for CNC machine tools, blowers and other equipment; large production lines and transformers in large industrial parks need 15KV 350MCM cables to ensure power transmission and ensure continuous production. Its multi-conductor design and appropriate current-carrying capacity can adapt to the diversified power needs of industrial equipment, and the setting of the ground wire also provides a strong guarantee for the electrical safety of industrial production, reducing the risk of safety accidents caused by electric leakage.
Construction Field
In the construction industry, different types of buildings have different requirements for cables. Low-rise residential buildings usually use 5KV 250MCM cables to meet the electricity needs of residents' daily life such as lighting and household appliances; high-rise residential communities, due to the large number of residents and large electricity load, can choose 8KV 350MCM cables; large commercial complexes, such as shopping malls, hotels, etc., have a large number of internal equipment, including central air conditioners, elevators, large amusement facilities, etc. 15KV 350MCM cables can provide sufficient and stable power for them. In addition, the
PVC Sheath of this series of cables has good flame retardancy, meets the requirements of building fire safety, and can delay the spread of fire to a certain extent.
Municipal Engineering Field
The
Power Line laying in municipal engineering has high requirements on the reliability and adaptability of cables. 5KV 250MCM cables can be used for the street lamp lighting system of urban roads; 8KV 250MCM cables can be selected for irrigation equipment and landscape lighting in small parks and green belts; 15KV 350MCM cables are needed for urban power trunk lines, sewage treatment plants, garbage treatment stations and other large municipal facilities. This series of cables can adapt to different laying environments in municipal engineering, such as underground direct burial, pipeline laying, etc. The corrosion resistance and mechanical strength of their XLPE insulation layer and PVC sheath can ensure that the cables run stably for a long time in the complex municipal environment.
(3) Materials and Styles
Core Materials
Conductor: High-purity electrolytic copper is used as the Conductor Material, with a purity of more than 99.95%. High-purity copper has excellent conductivity, which can reduce the loss during current transmission and improve the efficiency of power transmission. At the same time, Copper Conductors also have good ductility and mechanical strength, which are easy to process and lay, and not easy to break when subjected to external forces.
Insulation Layer: XLPE (cross-linked polyethylene) is selected as the insulation layer material. XLPE has excellent insulation performance, with high volume resistivity, which can effectively prevent current leakage and ensure the directional transmission of power. In addition, it also has good high temperature resistance, can work stably for a long time in a higher temperature environment, and has excellent aging resistance, which can prolong the service life of the cable and reduce faults caused by insulation aging.
Sheath: PVC (polyvinyl chloride) is used as the sheath material. PVC has good mechanical strength, which can protect the internal conductor and insulation layer of the cable from external mechanical damage, such as collision and extrusion. It also has excellent corrosion resistance, can resist the erosion of acid, alkali, salt and other chemical substances, and adapt to different environmental conditions. At the same time, PVC has good flame retardancy, which can delay combustion in case of fire and reduce the loss caused by fire.
Style Design
This series of cables has a multi-conductor circular structure, presenting a cylindrical shape as a whole. The three-core conductors are twisted with each other, wrapped with an XLPE insulation layer, then a common PVC sheath, and the ground wire is wrapped in the sheath together with the three-core conductors. The outer diameter of the cable varies according to the specification. The outer diameter of 5KV 250MCM cable is about 20-25 mm, that of 8KV 350MCM cable is about 25-30 mm, and that of 15KV 350MCM cable is about 30-35 mm. This circular structure makes the cable more convenient in the laying process and can adapt to different laying methods, such as pipe threading and direct burial. In addition, the color of the cable is usually black, which is the default color of the PVC sheath, facilitating identification during laying and use.
(4) Production Process
The production process of 5KV, 8KV, 15KV 3C with ground 250MCM, 350MCM multiconductor
XLPE PVC Power Cables strictly follows relevant industry standards, and adopts advanced production processes and equipment to ensure the stability and reliability of product quality.
Conductor Manufacturing
First, high-purity electrolytic copper is smelted to remove impurities, and then made into copper rods through continuous casting process. The copper rod is drawn into
Copper Wires of the required diameter by a wire drawing machine, and multiple copper wires are twisted into conductors by a stranding machine. In the stranding process, it is necessary to ensure the close combination between the copper wires to reduce the resistance of the conductor and improve the conductivity. After stranding, the conductor is annealed to eliminate internal stress and enhance the flexibility and mechanical strength of the conductor.
Insulation Layer Extrusion
An extruder is used to extrude XLPE material on the surface of the conductor to form an insulation layer. In the extrusion process, it is necessary to strictly control the extrusion temperature, speed and other parameters to ensure that the insulation layer has uniform thickness, smooth surface, and no defects such as bubbles and impurities. The thickness of the insulation layer depends on the voltage level of the cable. The higher the voltage level, the thicker the insulation layer to ensure good insulation performance.
Cabling
The three conductors wrapped with insulation layers and the ground wire are twisted into a cable according to a certain pitch. In the cabling process, appropriate filling materials should be filled between the conductors to make the structure of the cable more stable and also play a role in buffering and protection. After cabling, a wrapping tape is wrapped outside to enhance the integrity of the cable.
Sheath Extrusion
An extruder is used to extrude PVC material on the cabled core to form a sheath. Similarly, it is necessary to strictly control the extrusion process parameters to ensure that the sheath has uniform thickness, closely fits on the cable core, and has no cracks, bubbles and other problems. The color of the sheath is usually black, and other colors can also be customized according to customer requirements.
Finished Product Inspection
After production, the cable undergoes strict finished product inspection. Including electrical performance tests, such as insulation resistance test, voltage withstand test, etc., to ensure that the insulation performance of the cable meets the requirements; mechanical performance tests, such as tensile strength test, elongation at break test, etc., to inspect the mechanical strength of the cable; appearance and size inspection to ensure that the appearance and size of the cable meet the standards. Only cables that pass all inspections can leave the factory.
II. General Information About the Product
(1) Packaging Method
To ensure that the cable is not damaged during storage and transportation, this series of cables adopts a scientific and reasonable packaging method.
Coiled Packaging
Cables are usually packaged in coils according to a certain length, with common lengths of 100 meters, 200 meters, etc. The cable is wound on a solid wooden or steel cable reel. The diameter of the cable reel depends on the length and specification of the cable to ensure that the cable will not be excessively bent during winding. Both sides of the cable reel are provided with baffles to prevent the cable from sliding off the reel.
Protective Measures
A layer of plastic film is wrapped around the outer layer of the cable to play a role in moisture-proof and dust-proof. For long-distance transportation or storage in harsh environments, a layer of linen or canvas is wrapped outside the plastic film to enhance the protection of the cable and prevent the cable from being damaged by collision, friction, etc.
Identification Information
A clear identification plate is pasted on the side or end of the cable reel. The identification plate indicates the product model, specification, voltage level, length, production date, manufacturer and other information, which is convenient for users to identify and accept. At the same time, some warning information, such as "Do not invert" and "Handle with care", is also marked to remind transportation and storage personnel to operate correctly.
(2) Transportation and Delivery
Transportation Methods
Domestic transportation: According to the quantity and transportation distance of cables, road transportation, railway transportation and other methods can be selected. Road transportation usually uses trucks. For a small number of cables, ordinary trucks can be used; for a large number of cables, large flatbed trucks are needed. Railway transportation is suitable for long-distance and large-volume transportation, and can be loaded by using railway freight cars.
Transportation Precautions
During transportation, it is necessary to ensure that the cable reel is placed stably and fixed firmly to prevent shaking, tilting or even falling during transportation. For wooden cable reels, avoid getting wet by rain to avoid affecting their strength; for steel cable reels, do a good job of rust prevention. At the same time, during transportation, the cable should be prevented from being affected by extreme environments such as direct sunlight, high temperature and severe cold to ensure the stable performance of the cable.
Delivery Process
Order confirmation: After the customer places an order, the salesperson confirms the product model, specification, quantity, delivery date and other information with the customer to ensure that both parties have the same understanding.
Production arrangement: According to the order requirements, the production department formulates a production plan, organizes raw material procurement and production processing, and ensures that the production is completed within the specified delivery period.
Logistics arrangement: According to the customer's requirements and actual situation, select the appropriate transportation method and logistics company, and go through relevant transportation procedures, such as signing transportation contracts and handling insurance.
Delivery notification: After the cable is shipped, timely notify the customer of the delivery information, including the logistics company name, transportation order number, estimated arrival time, etc., to facilitate the customer to track the goods dynamics.
(3) Sample Service
In order to allow customers to better understand the performance and quality of the products, the company provides perfect sample services.
Sample Specifications
Samples of cables with different models and specifications can be provided according to customer needs, and the length of the sample is usually 1-5 meters. The sample includes complete structures such as conductor, insulation layer, sheath and ground wire, which can fully display the appearance and performance of the product.
Application Process
Customers can apply for samples through the company's official website, telephone, email, etc. When applying, it is necessary to provide the customer's name, contact information, the model, specification and quantity of the required samples and other information. After receiving the application, the company will review the application within 1-3 working days, and arrange the preparation and delivery of samples after approval.
Sample Fees
For new customers, a certain sample fee and freight may be required; for old customers or customers with clear purchase intentions, the sample fee and freight can be reduced or deducted in subsequent orders as appropriate.
Follow-up Support
After the customer receives the sample, the company's technical personnel will provide corresponding technical support to answer the customer's questions about sample performance, installation, use, etc. If the customer has any opinions or suggestions on the sample, the company will give timely feedback and improvement.
(4) After-sales Service
The company always adheres to the concept of "customer first" and provides customers with high-quality after-sales service.
Quality Assurance
The product warranty period is 1-3 years. During the warranty period, if the fault is caused by the product's own quality problems, the company will provide free repair or replacement services for customers.
Fault Handling
If customers encounter cable faults during use, they can call the company's after-sales service hotline for repair at any time. After receiving the repair information, the company will arrange technical personnel to contact the customer within 24 hours to understand the fault situation, and provide remote guidance or on-site maintenance services according to the actual situation. For those requiring on-site maintenance, technical personnel will arrive at the site as soon as possible to investigate the cause of the fault and deal with it, ensuring that the customer's power system resumes normal operation as soon as possible.
Technical Support
The company has a professional technical team that can provide customers with comprehensive technical support. Including providing customers with consulting services on cable selection suggestions, installation guidance, operation and maintenance, etc. At the same time, it can also provide customized cable solutions according to customer needs.
Regular Return Visits
The company will conduct regular return visits to customers to understand the use of products and customer needs, collect customer opinions and suggestions, and continuously improve product and service quality. Through regular return visits, establish long-term and stable cooperative relations with customers and improve customer satisfaction and loyalty.
Complaint Handling
If customers have any complaints about products or services, the company will respond within 24 hours, investigate and verify the complaint content and give a handling result within 3-5 working days. For reasonable complaints from customers, the company will take timely measures to rectify to ensure that the rights and interests of customers are protected.
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