I. Product - Related Information
(I) Specification Parameters
The aluminum - core
Power Cables involved this time mainly have two specifications: 3×4AWG + 1×6AWG + 2×12AWG and 3×2AWG + 1×4AWG + 2×12AWG.
The specification of 3×4AWG + 1×6AWG + 2×12AWG is composed of 3 main cores of 4AWG, 1 neutral core of 6AWG and 2 auxiliary cores of 12AWG. 3×2AWG + 1×4AWG + 2×12AWG includes 3 main cores of 2AWG, 1 neutral core of 4AWG and 2 auxiliary cores of 12AWG.
AWG here is the abbreviation of American Wire Gauge. Under this specification standard, the smaller the wire gauge value, the thicker the corresponding wire diameter. The wire diameter of 2AWG is thicker than that of 4AWG, 4AWG is thicker than 6AWG, and 12AWG is relatively thinner. The difference in wire diameter directly affects the current - carrying capacity of the cable. The thicker the wire diameter, the larger the current - carrying capacity, and the greater the power that can be transmitted. Therefore, the main cores of 2AWG and 4AWG can meet the power transmission needs of different powers respectively, and are suitable for power consumption scenarios with different power levels. The 12AWG auxiliary core, with a relatively small current - carrying capacity due to its thin wire diameter, is more suitable for signal transmission or low - power branch power supply, such as signal transmission of some small sensors and power supply of small lighting equipment.
(II) Characteristic Uses
Based on their specifications and performance characteristics, such aluminum - core power cables have a wide range of application scenarios.
In terms of industrial equipment power distribution, there are various equipment with different powers in industrial production, such as machine tools, fans, water pumps, etc. For equipment with higher power, cables with 2AWG main cores can be selected; for equipment with slightly lower power, cables with 4AWG main cores can be chosen. The auxiliary cores can also transmit signals for the control system of the equipment to ensure the normal operation of the equipment.
Building branch power transmission is also an important application field. In buildings, this type of cable can be used for branch power transmission from the main distribution box to the distribution boxes on each floor or in each area, as well as for power supply of some small indoor electrical equipment. Main cores of different specifications can adapt to the power load of different floors or areas, and auxiliary cores can be used for signal transmission in building automation systems.
In addition, such cables can also play an important role in outdoor temporary power supply systems, such as temporary power supply at construction sites and temporary power consumption for outdoor activities. Their portability and adaptability can meet the needs of temporary power supply and cope with certain environmental changes outdoors.
The multi - core structure of this type of cable is a major feature. The main cores are responsible for the main power transmission, the neutral cores are used to balance the three - phase current to ensure the stability of the power system, and the auxiliary cores undertake the tasks of signal transmission or low - power supply. This realizes the combination of main power supply and auxiliary functions, greatly improving the
Flexibility and practicability of the cable in practical applications.
(III) Material and Style
There are mainly two types of cables: YJLV and YJLY. They have some similarities and certain differences in materials.
Both types of cables use aluminum as the conductor. Aluminum has good conductivity. Although its conductivity is slightly inferior to that of copper, aluminum has a relatively low cost and is light in weight, which has obvious advantages in scenarios where cost and weight are considered.
Their insulation layers are made of cross - linked polyethylene materials. Cross - linked polyethylene is an excellent insulating material with excellent temperature resistance. It can maintain stable insulation performance in a relatively high - temperature environment and is not easy to age. At the same time, it has good electrical performance, with high insulation resistance and low dielectric loss, which can effectively reduce energy loss during power transmission and ensure the efficiency and safety of power transmission.
The sheath of YJLV cable is made of polyvinyl chloride. The polyvinyl chloride sheath has good wear resistance, which can resist external friction and collision, effectively protect the inner cores and insulation layers of the cable, and prolong the service life of the cable. Moreover, polyvinyl chloride has certain chemical corrosion resistance and can be used in environments with slight chemical pollution.
The sheath of YJLY cable is made of polyethylene. The polyethylene sheath has better flexibility and is easier to bend during laying, which is suitable for some scenarios that require bending and laying, such as cable arrangement in narrow spaces. At the same time, polyethylene has good low - temperature resistance and is not easy to embrittle in cold environments, so it can maintain good sheath performance.
In terms of style, this type of cable has a circular multi - core structure. The circular structure has low resistance during laying, making it more convenient for both pipe laying and direct burial laying. The integration of multiple cores not only facilitates installation and management but also reduces space occupation, making the line arrangement more neat and orderly.
(IV) Production Process
The production process of this type of aluminum - core power cable is relatively rigorous, mainly including the following key links.
Firstly, the preparation of conductors. High - quality aluminum rods are selected as raw materials, and
Aluminum Wires that meet the
AWG specification requirements are drawn from the aluminum rods through a wire drawing process. During the wire drawing process, it is necessary to strictly control the wire drawing speed and die precision to ensure that the diameter of the
Aluminum Wire meets the standard and the surface is smooth and free of defects. After that, the aluminum wire is annealed. Annealing can eliminate the internal stress generated in the aluminum wire during the wire drawing process and improve its flexibility and conductivity.
Next is the extrusion of the insulation layer. The prepared aluminum wire is used as the conductor, and cross - linked polyethylene material is evenly coated on the outside of the conductor through an extruder to form the insulation layer. During the extrusion process, it is necessary to accurately control parameters such as extrusion temperature, pressure, and speed. Excessively high temperature may cause material decomposition and affect insulation performance; excessively low temperature may cause the material to be not tightly coated, resulting in defects such as bubbles. Only when the parameters are properly controlled can the insulation layer have a uniform thickness, a smooth surface, and be firmly bonded to the conductor.
Then comes the cabling process. According to the specification requirements of the cable, the main cores, neutral cores, and auxiliary cores are arranged in an orderly manner and twisted together by a cabling machine. During the twisting process, it is necessary to ensure that each core is in the correct position with uniform tension to avoid core loosening, twisting, and other situations. At the same time, to make the cable structure more round and stable, some filling materials, such as polypropylene ropes, will be filled in the gaps of the twisted cores.
After cabling, the sheath is extruded. According to different cable types, polyvinyl chloride or polyethylene materials are selected respectively, and the sheath layer is extruded on the outside of the cabled core through an extruder. The extrusion of the sheath layer also needs to strictly control the process parameters to ensure that the sheath layer has a uniform thickness, a flat surface, and can tightly wrap the inner core to play a good protective role.
Strict quality inspections are required in all links of production, such as conductor diameter and resistance tests, insulation layer thickness and insulation resistance tests, structural size inspection after cabling, and sheath layer thickness and wear resistance tests. Only cables that meet the relevant standards in all inspection items can enter subsequent links such as packaging.
II. General Product Information
(I) Packaging
The packaging link is crucial to ensure the quality of cables during storage and transportation.
This type of aluminum - core power cable is usually packaged with cable reels. There are two types of cable reels: wooden and steel. Wooden cable reels have low cost and relatively light weight, which are suitable for packaging cables for short - distance transportation and small batches. However, the bearing capacity and strength of wooden cable reels are relatively weak, and they may not provide sufficient protection for long - distance transportation or large - size cable packaging.
Steel cable reels have high strength and bearing capacity, which can bear the weight of heavier and longer cables. They are not easy to be damaged during transportation and can provide more reliable protection for cables. However, steel cable reels have high cost and heavy weight, so the transportation cost is relatively increased.
When packaging, the cable is neatly wound on the cable reel. A certain tension should be maintained during the winding process to avoid cable loosening. After winding, the cable is wrapped with a layer of plastic film, which can play a role in moisture proofing and dust proofing, protecting the cable surface from pollution and damage. At the same time, the model, specification, length, production date, manufacturer, and other information of the cable will be clearly marked on the cable reel to facilitate users' identification and acceptance.
(II) Transportation
Many aspects need to be paid attention to in cable transportation to ensure that the cables are not damaged during transportation.
In the loading link, appropriate hoisting equipment, such as cranes and forklifts, is used to smoothly hoist the packaged cable reels to the transport vehicle. When hoisting, it is necessary to find the center of gravity of the cable reel to avoid tilting and falling of the cable reel due to the offset of the center of gravity. During the loading process, collisions and extrusion between cable reels should be avoided. Buffer materials, such as rubber pads, can be placed between cable reels.
The choice of transport vehicles is also important. Suitable vehicles, such as trucks and semi - trailers, should be selected according to the quantity, weight, and transportation distance of the cables. During transportation, the cable reels should be fixed firmly. Steel wire ropes and fastening belts can be used to fix the cable reels on the vehicle to prevent the cable reels from rolling and shifting due to vehicle bumps and turns during driving.
Environmental factors also need to be considered during transportation. In case of bad weather such as rainy and snowy days, the cables should be covered with rainproof cloth to prevent rainwater and snowwater from entering the interior of the cables and affecting their performance. At the same time, the cables should be avoided from being exposed to the sun for a long time to prevent aging of the sheath material.
Transport personnel should be familiar with the transport route and try to choose roads with good and flat conditions for driving. Sudden braking and sharp turns should be avoided to reduce the impact on the cables. During transportation, the fixing condition of the cable reels and the packaging condition of the cables should be checked regularly, and problems should be handled in time if found.
(III) Delivery
In the delivery link, it is necessary to communicate well with customers and prepare goods.
After receiving the customer's order, the staff will check the model, specification, quantity, and other information of the cable according to the order requirements to ensure that the delivered goods are consistent with the order. Then, the corresponding cables are retrieved from the warehouse, and the cables are re - inspected to check whether the packaging is intact, the marks are clear, and the cables are damaged.
After confirming that the goods are correct, appropriate transport vehicles and transportation time are arranged, and the delivery information is promptly notified to the customer, including the license plate number of the transport vehicle, the driver's contact information, and the estimated arrival time, so that the customer can prepare for receipt in advance.
If the customer has special delivery requirements, such as specifying a logistics company and urgent delivery, they should be coordinated and met as much as possible. For urgent delivery orders, priority should be given to the preparation and transportation of goods to ensure that they are delivered within the time required by the customer.
Before delivery, relevant logistics procedures, such as filling in the waybill and issuing invoices, need to be completed, and relevant documents should be sent with the goods or mailed to the customer as required by the customer.
(IV) Samples
In order for customers to understand the quality and performance of cables before bulk purchase, it is very necessary to provide sample services.
Customers can put forward sample requirements to the manufacturer and specify the model, specification, and other information of the required samples. After receiving the sample requirements, the manufacturer will prepare corresponding samples within the specified time. The length of the sample is generally 1 - 2 meters, which can meet the customer's inspection of the appearance, structure, and material of the cable.
The prepared samples will be simply packaged, such as in sealed bags, and the model, specification, production batch, and other information of the samples will be marked on the package. At the same time, relevant test reports of the samples, such as conductor resistance test reports and insulation performance test reports, can be attached to enable customers to have a more comprehensive understanding of the performance of the samples.
Samples are usually sent to customers by express. The manufacturer will choose a reputable express company with fast transportation speed and promptly inform the customer of the express waybill number to facilitate the customer to query the logistics information of the samples.
(V) After - sales Service
Perfect after - sales service is an important measure to protect customers' rights and interests. This type of aluminum - core power cable also provides comprehensive after - sales guarantee.
During the installation and use of the cable, if the customer encounters problems, such as uncertainty about the installation method and abnormal conditions of the cable, they can contact the after - sales service personnel of the manufacturer by phone, email, etc. The after - sales service personnel will respond in a timely manner and provide customers with professional answers and technical guidance.
If the cable has quality problems caused by non - human factors within the warranty period, the customer can apply to the manufacturer for repair or replacement. The manufacturer will arrange professional personnel to inspect the cable. After confirming that the problem is true, it will provide repair or replacement services for the customer in accordance with relevant regulations.
The manufacturer will also conduct regular return visits to customers to understand the use of cables and collect customers' opinions and suggestions. Based on customer feedback, it will continuously improve product quality and service level to improve customer satisfaction. In addition, it will provide customers with relevant technical materials, such as cable installation manuals and maintenance guides, to help customers better use and maintain cables.
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