I. From the Perspective of the Product Itself
Specification Parameters
Halogen-free high-voltage AC
Power Cables of models Nhxch, N2xch, N2xh, N2xh-O with specifications such as 3X6, 4X16mm², and 4X150mm² have clear and detailed settings in terms of specification parameters.
In terms of conductor specifications, 3X6mm² means the cable has 3 conductors with a cross-sectional area of 6mm²; 4X16mm² refers to
4 Conductors with a cross-sectional area of 16mm²; and 4X150mm² is 4 conductors with a cross-sectional area of 150mm². The cross-sectional area of the conductor is directly related to the current-carrying capacity. Generally speaking, the larger the cross-sectional area of the conductor, the higher the current-carrying capacity. For example, the current-carrying capacity of the 4X150mm² specification is significantly higher than that of 3X6mm² and 4X16mm² specifications, which can meet the power transmission needs of higher power.
In terms of voltage level, this type of cable is a high-voltage
AC Power Cable, suitable for high-voltage power supply scenarios. The specific rated voltage will be determined according to different application requirements and design standards. It can usually adapt to a higher voltage environment to ensure the stable transmission of electricity under high-voltage conditions.
Temperature parameters are also important specification indicators. The allowable long-term operating temperature of the conductor is generally clearly specified to ensure that the cable will not affect its performance due to excessive temperature during long-term operation. At the same time, the maximum temperature and duration during a short circuit are also strictly limited. For example, the temperature during a short circuit (with a maximum duration not exceeding the specified value) does not exceed a certain specific value. This is to protect the cable in case of a sudden short circuit and avoid serious damage caused by instantaneous high temperature. The ambient temperature during laying also has requirements, usually not lower than a certain temperature, to ensure the smooth progress of the laying work and the stability of the cable performance.
Characteristic Uses
Halogen-free high-voltage AC power cables of different specifications and models have their own characteristic uses due to their different characteristics.
The 3X6mm² specification cable, with its relatively small current-carrying capacity, is suitable for power supply of some small high-voltage electrical equipment or as a branch line in small high-voltage power distribution systems. For example, it can meet the power transmission needs in the power supply of local high-voltage equipment in some small factories.
The 4X16mm² specification cable has a moderate current-carrying capacity and can be applied to medium-sized high-voltage power consumption scenarios. Such as high-voltage equipment in the production workshops of some medium-sized enterprises and high-voltage power distribution trunks in high-rise buildings, this specification of cable can be selected. It can meet the power load requirements of these scenarios while ensuring transmission efficiency.
The 4X150mm² specification cable has a large current-carrying capacity and is suitable for large-scale high-voltage power transmission scenarios. For example, high-voltage transmission lines from the main step-down substation to the workshop in large factories and high-voltage power distribution lines in urban power grids, this specification of cable can meet the transmission needs of a large amount of electricity and ensure the stable power supply of large electricity-consuming places.
In terms of models, cables of models Nhxch, N2xch, N2xh, and N2xh-O all have halogen-free characteristics, making them ideal choices in places with extremely high requirements for safety and environmental protection. For example, in hospitals, in case of a fire,
Halogen-Free Cables will not release toxic halogen gases, which can reduce harm to patients and medical staff; in the subway system, where there are many people and the space is relatively closed, halogen-free cables can reduce the risk factor in case of fire; in high-rise buildings, the halogen-free characteristic also provides a safer environment for personnel evacuation and rescue work. In addition, the high-voltage characteristics of these cables enable them to play a role in places that require high-voltage power supply, such as high-voltage power distribution systems in large stadiums and high-voltage transmission networks in industrial parks.
Material and Style
The material selection of halogen-free high-voltage AC power cables is closely related to their performance and is the basis for ensuring good cable performance.
Conductors usually use high-purity copper or aluminum as materials. Copper has excellent electrical conductivity and low resistance, which can reduce energy loss during current transmission and ensure the efficiency of power transmission. Therefore, it is widely used in scenarios with high requirements for electrical conductivity. Although aluminum has slightly inferior electrical conductivity to copper, it is relatively light in weight and low in cost, and is also used in some large transmission lines with requirements for cost and weight.
The insulation layer is made of halogen-free insulating materials, which is an important guarantee for the halogen-free characteristics of this type of cable. Halogen-free insulating materials not only have good insulation performance, which can effectively isolate the conductor from the outside and prevent potential safety hazards such as electric leakage, but also do not release toxic halogen gases when burned. At the same time, this insulating material also has certain temperature resistance and mechanical strength, and can adapt to working conditions in high-voltage environments.
The sheath is also made of halogen-free materials, which further strengthens the halogen-free characteristics of the cable. The sheath plays a role in protecting the internal structure of the cable and can resist external mechanical damage, chemical corrosion, etc. Halogen-free sheath materials meet environmental protection requirements while having a protective function.
In terms of style, these cables are generally circular in structure and wrapped with a regular sheath on the outside. Cables of different specifications have different outer diameters. Generally, the larger the cross-sectional area, the larger the outer diameter. From the appearance, the surface of the cable is smooth and the marks are clear. It will be marked with important information such as model, specification, and voltage level, which is convenient for users to identify and select. In addition, the structural design of the cable makes it have certain
Flexibility, which is convenient for installation and arrangement in different laying environments.
Production Process
The production process of halogen-free high-voltage AC power cables is complex and rigorous, and each link has an important impact on the quality and performance of the cables.
The first step is the production of conductors. For
Copper Conductors, copper materials need to be drawn into
Copper Wires of the required diameter through wire drawing, and then annealed to improve the flexibility and conductivity of the copper wires. Multiple copper wires are stranded to form a conductor. During the stranding process, the roundness and tightness of the conductor must be ensured to ensure uniform and stable conductivity. For
Aluminum Conductors, wire drawing, stranding and other processes are also required, but the process parameters will be appropriately adjusted according to the characteristics of aluminum.
Next is the extrusion of the insulation layer. Using halogen-free insulating materials, it is evenly coated on the surface of the conductor through an extruder to form an insulation layer. During the extrusion process, it is necessary to accurately control parameters such as extrusion temperature and speed. Excessively high temperature may reduce the performance of the insulating material, and excessively low temperature may cause defects such as bubbles and lack of material in the insulation layer; excessively fast or slow speed will affect the thickness uniformity of the insulation layer. Only by strictly controlling these parameters can the insulation layer have good insulation performance and mechanical strength.
Then comes the cabling process. For
Multi-Core cables, multiple conductors covered with insulation layers need to be cabled according to a certain stranding method. During stranding, the position of each core wire must be accurate and the tension must be uniform to avoid damage due to uneven force during use. After cabling, a wrapping layer may be wrapped around the outside to play a further fixing and protective role.
After that is the extrusion of the sheath. Using halogen-free sheath materials, extrusion coating is carried out on the outside of the cabled cable to form a sheath. The sheath extrusion process is similar to the insulation layer extrusion, and various parameters also need to be strictly controlled to ensure that the sheath has a uniform thickness, a smooth surface, and is closely combined with the internal structure, which can effectively protect the internal part of the cable from the external environment.
During the production process, a series of quality inspections are also required. For example, insulation resistance testing to check whether the insulation performance of the insulation layer meets the standards; voltage withstand testing to test the cable's ability to withstand high-voltage environments; halogen-free performance testing to ensure that the cable does not release toxic halogen gases when burned. Only after passing these strict inspections can the produced cables meet relevant standards and requirements.
II. From the Perspective of General Product Information
Packaging
To ensure that halogen-free high-voltage AC power cables are not damaged during transportation and storage, there are strict specifications and requirements for the packaging link.
This type of cable is usually packaged in wooden reels. Wooden reels have good load-bearing capacity and stability, can bear the weight of the cable, and are not easy to deform during transportation. Wrapping the cable neatly on the wooden reel can prevent the cable from loosening, twisting or rubbing against each other, reducing the possibility of damage. When wrapping, the cable must be arranged tightly and evenly to avoid overlapping or excessive gaps.
After the cable is wrapped, it will be wrapped with plastic film as a whole. The plastic film can play a role in moisture-proof and dust-proof, preventing the cable from being eroded by moisture, dust, etc. during storage and transportation, and protecting the surface and performance of the cable. For some transportation and storage scenarios with relatively harsh environments, a layer of linen or other protective materials can be wrapped outside the plastic film to further enhance the protective effect.
Information such as cable model, specification, length, production batch number, production date, manufacturer name and contact information will be clearly marked on the packaging. This information not only facilitates users to check during receiving and acceptance, but also facilitates the tracing of product production information. At the same time, some warning signs such as "Do not press heavily", "Moisture-proof", and "Up" will be marked on the packaging to remind transportation and handling personnel to operate correctly.
Transportation
The transportation of halogen-free high-voltage AC power cables requires selecting an appropriate transportation method and taking corresponding protective measures to ensure the safe transportation of the cables.
The transportation method is usually selected according to factors such as the quantity, specification, and transportation distance of the cables. For a small amount of short-distance transportation, truck transportation can be used; for a large amount of long-distance transportation, railway transportation is a more appropriate choice. Railway transportation has good stability and can reduce the impact of bumps during transportation on the cables.
During transportation, the cable should be avoided from severe collision, extrusion and exposure to the sun. When loading the cable, the wooden reel must be fixed firmly to prevent sliding or tipping during transportation. Steel wire ropes or special fixing belts can be used to fix the wooden reel on the transport vehicle. The fixing points should be selected in appropriate positions to avoid damage to the wooden reel and the cable.
Attention should be paid to moisture-proof, sun-proof and high-temperature prevention during transportation. When transporting in rainy days, rain-proof measures should be taken, such as covering with rain-proof cloth to prevent the cable from being wetted by rain; when transporting in summer, the cable should be avoided from being exposed to the sun for a long time to prevent the sheath from aging due to high temperature; when transporting in cold areas in winter, although the cable has a certain low-temperature resistance, excessive low temperature should also be avoided to cause potential impact on the cable performance.
Special personnel should be arranged to be responsible for escorting during transportation. The escorts should check the packaging and fixing status of the cables at any time and deal with problems in a timely manner. At the same time, the vehicle should follow the predetermined transportation route and avoid driving on roads with poor conditions to reduce the bumps and vibrations that the cables are subjected to.
Delivery
The delivery link is an important link connecting production and customers, and requires rigorous operation to ensure that the cables can be delivered to customers on time and in good condition.
Before delivery, the staff will carefully check the model, specification, quantity, etc. of the cables to ensure that they are consistent with the customer's order requirements. At the same time, the packaging of the cables will be inspected to see if the packaging is intact, the marks are clear, and the protective measures are in place. If problems are found, they should be dealt with in a timely manner to avoid sending out unqualified products or packaging.
Arrange the delivery time reasonably according to the customer's requirements and delivery date. Choose a logistics company with a good reputation and strong transportation capacity for cooperation, and sign a detailed transportation agreement with the logistics company to clarify the responsibilities and obligations of both parties. When handing over with the logistics company, relevant information about the cables and transportation precautions should be informed to the logistics company to ensure that the logistics company can transport and handle the cables correctly.
After delivery, feedback the logistics information to the customer in a timely manner, including the name of the logistics company, waybill number, estimated arrival time, etc., to facilitate the customer to query and track the transportation status of the goods. At the same time, maintain communication with the logistics company and keep abreast of the transportation progress of the goods. If there are transportation delays, damage, etc., communicate and coordinate with the customer and the logistics company in a timely manner and take corresponding solutions.
Samples
To allow customers to understand the quality and performance of halogen-free high-voltage AC power cables before bulk purchase, manufacturers provide sample services, and the relevant processes of samples are standardized and perfect.
Customers can put forward sample requirements to the manufacturer and specify the model, specification, quantity and other information of the required cables. After receiving the sample requirements, the manufacturer will conduct evaluation and arrangement in a timely manner and prepare the samples within the specified time. The production process of the samples is the same as that of the bulk-produced cables, using the same raw materials and production processes to ensure that the samples can truly reflect the quality and performance of the bulk products.
After the samples are prepared, they will undergo strict quality inspection, and only qualified samples will be sent to customers. When sending samples, appropriate packaging methods such as small wooden reels or strong cartons will be used to ensure that the samples are not damaged during transportation. At the same time, sample quality inspection reports, product manuals and other materials will be attached to the samples to facilitate customers to understand the details of the samples.
After the samples are sent, the customer will be notified in a timely manner and express waybill numbers and other information will be provided to facilitate the customer to query the transportation status of the samples. If the customer has any questions about the samples or needs further information, the relevant personnel of the manufacturer will answer and communicate in a timely manner.
After-Sales Service
A sound after-sales system is an important guarantee for protecting customer rights and interests. The after-sales service of halogen-free high-voltage AC power cables covers many aspects and provides customers with all-round support.
After receiving the cables, if the customer finds quality problems with the cables, such as damaged insulation layers, broken conductors, unclear marks, etc., they can contact the manufacturer within the specified warranty period. After receiving the feedback, the manufacturer will arrange professional personnel to communicate with the customer, understand the problem situation, and arrange personnel to conduct on-site inspection or request the customer to provide relevant photos and other evidence according to the actual situation. If it is confirmed to be a product quality problem, the manufacturer will carry out return or exchange processing according to the customer's requirements and bear the corresponding costs.
For the installation and use of cables, manufacturers provide professional technical support. Customers can consult the manufacturer about installation precautions and technical requirements before installation. The manufacturer's technical personnel will provide detailed guidance, such as laying methods and connection processes. If customers encounter technical problems during the installation process, they can seek help from the manufacturer by phone, email, etc., and the technical personnel will give answers and guidance in a timely manner.
During the use of the cable, if the customer finds performance abnormalities and other situations, the manufacturer will also respond in a timely manner. It will arrange technical personnel to analyze the cause of the problem and provide solutions. For some large projects or important customers, the manufacturer will also conduct regular return visits to understand the use of the cables, provide maintenance suggestions, and ensure that the cables can operate stably for a long time.
In addition, manufacturers will also provide customers with services such as updates of relevant technical data of products and sharing of industry trends to help customers better understand and use products. Through a sound after-sales system, customers' trust and satisfaction with products are enhanced.
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