Detailed Description of 0.6/1kV 4×150mm² PVC Aluminium Core Low-Voltage Underground Power Cable (Nayy, Nayy-O, Nayy-J)
I. From the Perspective of the Product Itself
(I) Specification Parameters
Voltage Level
The rated voltage level of this cable is 0.6/1kV, where 0.6kV is the phase voltage and 1kV is the line voltage. This voltage level enables it to perfectly adapt to low-voltage distribution systems, efficiently realizing the transmission and distribution of electrical energy in general industrial production, civil construction and other scenarios. Compared with cables of higher voltage levels, it has better adaptability in low-voltage distribution environments, which can effectively reduce energy loss during power transmission and ensure the stability of power supply.
Conductor Structure
The cable consists of
4 Conductors with a cross-sectional area of 150 square millimeters. The design of 4 conductors allows it to meet the requirements of three-phase four-wire distribution lines, among which three act as phase lines to transmit electrical energy and one acts as a neutral line to ensure the safe operation of the circuit. The cross-sectional area of 150 square millimeters endows the cable with a large current-carrying capacity, enabling it to work stably under long-term high-load conditions and avoiding potential safety hazards caused by overheating of the conductor. The larger cross-sectional area also reduces the resistance of the cable during power transmission, further lowering energy loss.
Model Differences
Insulation Thickness: Cables of different models may have different insulation thicknesses. The Nayy model may adopt an insulation layer with standard thickness, suitable for general environments; the Nayy-O model may have a thicker insulation layer, with better insulation performance, suitable for places with higher insulation requirements; the insulation thickness of the Nayy-J model may be optimized according to specific needs, ensuring insulation performance while taking into account the Flexibility of the cable.
Sheath Type: The composition and structure of the sheath material may vary. The sheath of the Nayy model may be an ordinary PVC Sheath, with basic protective performance; the Nayy-O model may use an oil-resistant PVC sheath, suitable for environments that may come into contact with oil; the Nayy-J model may adopt a flame-retardant PVC sheath, which can delay the spread of fire in case of fire and improve safety.
Flame Retardant Performance: The Nayy-J model may have more prominent flame retardant performance. Through special material formulas and production processes, it can reach a higher flame retardant level, suitable for crowded places such as schools, hospitals, shopping malls and other places with high requirements for fire safety; the flame retardant performance of Nayy and Nayy-O models may be relatively weak, suitable for general industrial and civil environments.
Temperature Resistance Level: Cables of different models may have different temperature resistance ranges. The Nayy model may be suitable for ambient temperatures from -15℃ to 70℃; the Nayy-O model may be able to work in higher temperature environments, such as from -10℃ to 80℃; the Nayy-J model may have a wider temperature resistance range, suitable for places with large temperature changes.
(II) Characteristic Applications
Urban Distribution Network
This cable plays an important role in the urban distribution network. With the continuous development of cities, the demand for electricity is increasing, and the urban distribution network needs efficient and stable power transmission equipment. This cable is suitable for underground laying, which can avoid problems such as
Overhead Lines occupying ground space, affecting urban appearance and being greatly affected by weather. It can be buried under urban roads, in green belts and other locations, transmitting electricity from substations to distribution rooms in various regions, and then distributed to thousands of households by the distribution rooms, ensuring the daily electricity consumption of urban residents and commercial electricity.
Industrial Factories
Industrial factories have a large number of electrical equipment with large power, and have high requirements for the stability and reliability of electricity. This cable can meet the high-load electricity demand of industrial factories, transmitting electricity from the general distribution room of the factory to various production workshops and equipment. Since industrial factories may have various corrosive substances, mechanical vibrations and other conditions, and the cable uses PVC sheath and
Aluminum Core conductor, it has good chemical corrosion resistance and mechanical strength, and can adapt to the complex environment of industrial factories, ensuring the smooth progress of production.
Residential Communities
Residential communities are places where residents live, and electrical safety is crucial. This cable can be used in the underground distribution system of residential communities, transmitting electricity from the distribution room of the community to the distribution box of each building, and then supplying power to various electrical equipment in residents' homes. Its underground laying method will not affect the appearance of the community and the daily life of residents. At the same time, the insulation performance and protective performance of the PVC sheath can ensure the electrical safety of residents, avoiding electric shock, fire and other accidents caused by cable faults.
Other Places
In addition to the above main places, the cable can also be applied in fields such as municipal engineering and agricultural irrigation. In municipal engineering, such as street lamp power supply and traffic signal lamp power supply, the underground laying of cables can avoid impact on ground traffic and landscape; in agricultural irrigation, it can be used for power supply of irrigation equipment, adapting to the complex outdoor environment in rural areas.
(III) Material and Style
Conductor Material
The cable uses aluminum core as the conductor material. Aluminum has many advantages. Firstly, aluminum is light in weight, making the cable more convenient in transportation and laying, reducing construction difficulty and cost. Secondly, aluminum resources are abundant, and compared with other conductor materials such as copper, the cost is relatively low, which can reduce the production and use cost of the cable. In addition, aluminum has good electrical conductivity. Although its conductivity is slightly inferior to that of copper, it can fully meet the conductive needs in low-voltage distribution scenarios, and is a cost-effective conductor material.
Insulation and Sheath Material
The outer insulation and sheath are made of PVC (polyvinyl chloride) material. PVC has excellent insulation performance, which can effectively prevent current leakage and ensure the safety of power transmission. It also has good chemical corrosion resistance, which can resist the erosion of acid and alkali substances in the soil, groundwater, etc., and prolong the service life of the cable. At the same time, PVC has high mechanical strength, which can withstand external forces such as soil pressure and mechanical collision during underground laying, protecting the internal conductor from damage.
Style Design
The cable adopts a circular structure design, which makes the cable easier to lay and can adapt to different laying paths. The circular structure also makes the stress of the cable more uniform, and it is not easy to be damaged when subjected to external forces. In addition, the surface of the cable is smooth, which reduces the friction during laying and facilitates construction. Cables of different models may differ in color for easy distinction and identification. For example, the Nayy model may be black, the Nayy-O model may be gray, and the Nayy-J model may be yellow.
(IV) Production Process
Conductor Manufacturing
First, aluminum ingots are smelted to remove impurities, obtaining high-purity aluminum liquid. Then, the aluminum liquid is cast into aluminum rods through a continuous casting machine, and the diameter of the aluminum rods is adjusted according to the specifications of the
Cable Conductor. Next, the aluminum rod is drawn into
Aluminum Wires of the required diameter by wire drawing process. During the wire drawing process, the
Aluminum Wires need to be annealed to improve their flexibility and conductivity. Finally, multiple aluminum wires are twisted together to form a conductor with a cross-sectional area of 150 square millimeters. The twisting process can improve the mechanical strength and flexibility of the conductor.
Insulation Extrusion
Extrude the
PVC Insulation layer on the surface of the conductor. First, add PVC particles into the extruder, and after heating and melting, uniformly extrude them onto the surface of the conductor through a mold to form an insulation layer. During the extrusion process, it is necessary to strictly control parameters such as extrusion temperature and speed to ensure that the insulation layer has uniform thickness, smooth surface and close combination with the conductor. The thickness of the insulation layer is precisely controlled according to the model and voltage level of the cable to meet the requirements of insulation performance.
Cabling
Twist 4 conductors with insulation layers together to form the cable core. During the twisting process, it is necessary to twist according to a certain pitch to ensure the roundness and stability of the cable core. At the same time, some fillers, such as polypropylene ropes, may be filled during the twisting process to improve the structural stability of the cable core and prevent the conductor from shifting during use.
Sheath Extrusion
Extrude the PVC sheath outside the cable core. Similar to the insulation extrusion process, PVC particles are added into the extruder, melted, and then extruded onto the surface of the cable core through a mold to form a sheath layer. The sheath layer needs to tightly wrap the cable core, with a certain thickness and strength to protect the cable core from the external environment. During the extrusion process, various parameters also need to be strictly controlled to ensure the quality of the sheath layer.
Inspection and Testing
After production, the cable undergoes strict inspection and testing. Including appearance inspection to check whether the surface of the cable has scratches, bubbles, damage and other defects; size measurement to detect whether the outer diameter of the cable, conductor cross-sectional area, thickness of insulation layer and sheath layer meet the standard requirements; electrical performance testing, such as insulation resistance test, voltage withstand test, etc., to ensure that the insulation performance and conductivity of the cable meet the standards; mechanical performance testing, such as tensile strength, elongation at break, etc., to check whether the mechanical strength of the cable meets the requirements. Only cables that pass all tests can leave the factory.
II. From the Perspective of General Product Information
(I) Packaging
Packaging Materials
Cables are usually packaged with wooden reels or iron reels. The wooden reel is made of high-quality wood, which has certain strength and toughness, can bear the weight of the cable, and plays a buffering role during transportation to protect the cable from collision damage. The iron reel is made of steel, which has higher strength, is suitable for packaging longer cables, and can better ensure the stability of the cable during transportation and storage. In addition, before the cable is coiled onto the wooden or iron reel, it will be wrapped with plastic film to prevent the cable surface from being polluted and eroded by moisture.
Packaging Method
The cable is neatly coiled on the wooden or iron reel. During the coiling process, the tightness of the cable should be moderate to avoid deformation due to over-tightening or looseness due to over-loosening. The outer layer of the cable will be wrapped and fixed with stretch film to prevent the cable from slipping off the reel during transportation. At the same time, the packaging will be marked with the cable's model, specification, length, voltage level, production date, manufacturer information, etc., for easy identification and traceability. For longer cables, multiple wooden or iron reels may be used for segmented packaging.
Packaging Marking
The marks on the packaging are clear and accurate, including the product name "0.6/1kV 4×150mm² PVC Aluminium Core Low-Voltage
Underground Power Cable", models "Nayy, Nayy-O, Nayy-J", specification parameters, production batch number, execution standard, weight, size and other information. These marks not only facilitate users to understand the basic situation of the product, but also are conducive to product quality traceability and after-sales service.
(II) Transportation
Transportation Methods
According to the different transportation distance and quantity, road transportation, railway transportation or water transportation can be selected.
Road Transportation: Suitable for short-distance transportation and small batches of goods. It has the advantages of high flexibility and being able to directly reach the destination. During transportation, special trucks are needed to fix the cable reels firmly to prevent shaking and collision during driving.
Railway Transportation: Suitable for medium and long-distance transportation and large quantities of goods. It has the advantages of large transportation volume, relatively low cost and good stability. During transportation, it is necessary to abide by the relevant regulations of the railway department and stack the cable reels reasonably to ensure transportation safety.
Water Transportation: Suitable for long-distance transportation and large quantities of goods, especially cross-regional or transnational transportation. It has the advantages of low transportation cost and large transportation volume. However, the transportation time is relatively long, and attention should be paid to taking moisture-proof, sun-proof and other protective measures for the cables.
Transportation Precautions
The cable should be stored in a well-ventilated, dry and clean environment, avoiding direct sunlight, rain and moisture. During transportation, the cable should be covered with a tarpaulin to prevent rainwater and dust from entering.
Special lifting equipment should be used for loading and unloading the cable reels, and rough loading and unloading is strictly prohibited. During loading and unloading, the cable reel should be kept stable to avoid tilting and falling.
During transportation, traffic rules should be observed to ensure transportation safety. At the same time, transportation records should be made, including transportation time, route, transportation personnel and other information for traceability.
(III) Delivery
Delivery Process
Order Confirmation: After receiving the customer's order, the sales staff should communicate with the customer in a timely manner to confirm the product model, specification, quantity, delivery date, delivery location and other information to ensure that the order information is accurate.
Product Inspection: Before delivery, quality inspectors re-inspect the cables to be delivered, checking whether the appearance, size, marks, etc. of the products meet the requirements to ensure that the product quality is qualified.
Delivery Notification: After the cable is shipped, notify the customer of the delivery information in a timely manner, including transportation method, transportation company, license plate number, estimated arrival time, etc., to facilitate the customer to prepare for receipt.
Delivery Time
In the case of sufficient inventory, for regular orders, delivery is generally made within 1-3 working days after receiving the customer's payment; for customized orders or large quantities of orders, the delivery time will be determined according to the production progress, usually within 10-15 working days. The sales staff will communicate the specific delivery time with the customer after the order is confirmed and timely feedback the production progress to the customer.
(IV) Samples
Sample Provision
Customers can apply to the company for samples before placing a formal order. The company will provide cable samples of corresponding models and specifications according to the customer's requirements. The length of the sample is generally 1-2 meters to meet the customer's needs for inspecting the product's appearance, material, performance, etc.
Sample Fee
Regarding the sample fee, for samples of regular models, the company may provide them free of charge, but the customer needs to bear the transportation cost of the samples; for specially customized samples, the company will charge a certain fee according to the production cost of the samples. After the customer places a formal order, the sample fee can be deducted from the payment.
Sample Delivery
Samples will be sent out within 1-3 working days after receiving the customer's sample application, using an appropriate transportation method, and the sample's courier number and other information will be timely informed to the customer to facilitate the customer to track the logistics information of the sample.
(V) After-Sales Service
Quality Assurance
The company promises that the 0.6/1kV 4×150mm² PVC aluminium core low-voltage underground
Power Cables (Nayy, Nayy-O, Nayy-J) produced meet the relevant national standards and industry standards, and the product quality guarantee period is 18 months from the date of leaving the factory. Within the quality guarantee period, if the product has quality problems caused by non-human factors, the company will provide free repair or replacement services for the customer.
Installation Guidance
The company has a professional technical team that can provide installation guidance services for customers. Customers can consult technical personnel by phone, email, etc. when encountering any problems during the cable installation process, and the technical personnel will give timely answers and guidance. For large engineering projects, the company can also send technical personnel to the site for installation guidance.
Fault Handling
If the cable fails during use, the customer should notify the company in a timely manner. The company will respond within 24 hours after receiving the notification and arrange technical personnel to carry out fault detection and analysis. For faults that can be solved on site, technical personnel will handle them as soon as possible; for faults that need to be returned to the factory for repair, the company will promptly transport the cable back to the factory for repair and send the repaired cable back to the customer within the specified time.
Customer Feedback
The company attaches great importance to customers' feedback and has set up special customer feedback channels, such as phone calls, emails, online messages, etc. Customers can feedback any problems encountered or any suggestions during the use of the product through these channels. The company will promptly handle and reply to customers' feedback, and continuously improve product and service quality based on customers' feedback.
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