I. From the Perspective of the Product Itself
Specification Parameters
The specification parameters of the 3X35mm² series steel wire
Armoured Cables are the basis for their performance and application. This series of cables has a conductor cross-sectional area of 35mm² and adopts a 3-core design, which can meet certain current-carrying requirements while ensuring transmission efficiency.
In terms of voltage level, it is suitable for AC 50HZ power transmission and distribution lines with a rated voltage of 35KV and below, and is used for power transmission.
In terms of temperature parameters, the allowable long-term operating temperature of the conductor is 90℃, which ensures that the cable will not affect its performance due to excessive temperature during long-term operation. The temperature during a short circuit (with a maximum duration of no more than 5s) does not exceed 250℃. This parameter provides a certain safety guarantee for the cable in case of a sudden short circuit, avoiding damage to the cable due to instantaneous high temperature. The ambient temperature during laying should not be lower than 0℃, which puts forward basic requirements for the laying environment of the cable to ensure that the laying is carried out under appropriate temperature conditions, so as to ensure the laying quality and cable performance.
Characteristic Uses
Different types of cables have their own characteristic uses due to their different properties. Yjv32 cable, as a copper-core cross-linked polyethylene insulated fine steel wire armoured polyvinyl chloride sheathed
Power Cable, with its good insulation performance and mechanical protection ability, is suitable for general industrial places, underground laying of urban power grids and other scenarios. In these scenarios, it can resist certain mechanical external forces and ensure the stable transmission of electricity.
Yjy32 cable is a copper-core cross-linked polyethylene insulated fine steel wire armoured polyethylene
Sheathed Power Cable. The polyethylene sheath has good chemical corrosion resistance and low-temperature resistance, so it is suitable for some environments with mild chemical corrosion, such as
Power Lines around chemical plants and power transmission in low-temperature areas.
Wdzn-Yjy32 cable is a copper-core cross-linked polyethylene insulated fine steel wire armoured polyethylene sheathed low-smoke, halogen-free, flame-retardant and
Fire-resistant power cable. The low-smoke and halogen-free characteristics mean that it will not produce a large amount of toxic smoke and halogen gas when the cable burns. The flame-retardant and fire-resistant performance can delay the cable combustion in case of fire, buying time for personnel evacuation and rescue. Therefore, it is widely used in fire protection systems, high-rise buildings, hospitals, schools and other places with high safety requirements.
Zr-Yjv32 is a copper-core cross-linked polyethylene insulated fine steel wire armoured polyvinyl chloride sheathed power cable with flame-retardant properties. Its flame-retardant performance can effectively prevent the spread of fire, and it is suitable for power supply in industrial plants, warehouses and other places with certain flame-retardant requirements.
Material and Style
The material selection of this series of cables is closely related to their performance. The conductor is made of
Copper Core. Copper has excellent electrical conductivity, which can reduce losses during current transmission and ensure efficient transmission of electrical energy.
The insulation layer uses cross-linked polyethylene, which has good insulation performance, temperature resistance and mechanical strength, and can effectively isolate the conductor from the outside to prevent electric leakage and other situations.
The armouring layer is made of fine steel wire. The fine steel wire armouring structure enables the cable to withstand mechanical external forces and considerable tensile force, enhances the impact resistance and pressure resistance of the cable, and makes it suitable for high-drop areas and environments that may be subject to external impact.
In terms of sheaths, there are differences between different models. Yjv32 adopts a polyvinyl chloride sheath, which has good mechanical properties and weather resistance; Yjy32 and Wdzn-Yjy32 use polyethylene sheaths, which are better in chemical corrosion resistance and low-temperature resistance; Zr-Yjv32 uses a polyvinyl chloride sheath with flame-retardant properties.
In terms of style, this series of cables all have a steel wire armoured structure, presenting a regular cylindrical shape with a simple appearance, which is convenient for laying and installation. Cables of different models may have certain differences in appearance details such as color for easy distinction and identification.
Production Process
The production process of this series of cables is relatively complex and requires multiple strict processes. Firstly, the conductor is made. Copper materials are processed through wire drawing, annealing and other processes to make copper core conductors that meet the requirements, ensuring the electrical conductivity and mechanical strength of the conductors.
Next is the extrusion of the insulation layer. The cross-linked polyethylene material is evenly coated on the surface of the conductor through an extruder to form the insulation layer. During the extrusion process, parameters such as temperature and pressure need to be accurately controlled to ensure that the insulation layer has uniform thickness, a smooth surface and up-to-standard insulation performance.
Then, armouring treatment is carried out, and fine steel wires are wound around the outside of the insulation layer in a certain way to form an armouring layer. During the armouring process, the tightness and uniformity of the steel wire winding must be ensured to ensure that the armouring layer can effectively play a protective role.
Finally, the sheath is extruded. According to the requirements of different models, the corresponding sheath materials (such as polyvinyl chloride or polyethylene) are extruded and coated on the outside of the armouring layer to form the sheath. The sheath extrusion also needs to strictly control the process parameters to ensure the quality of the sheath.
In addition, for models with special properties, such as Wdzn-Yjy32 and Zr-Yjv32, it is also necessary to add corresponding flame-retardant, fire-resistant or low-smoke and halogen-free materials during the production process and conduct specific process treatments to ensure that their special properties meet the standard requirements. During the production process, a series of quality inspections, such as insulation resistance testing and voltage withstand testing, will also be carried out on the cables to ensure product quality.
II. From the Perspective of General Product Information
Packaging
The packaging link is crucial to ensure that the cables are not damaged during transportation and storage. This series of cables is usually packaged in wooden reels. The cables are neatly wound on the wooden reels. The wooden reels have good load-bearing capacity and stability, which can prevent the cables from loosening, twisting and other situations during transportation.
After the cables are wound, they will be wrapped with plastic film. The plastic film can play a role in moisture-proof and dust-proof, avoiding the cables from being eroded by moisture and dust during storage and transportation. For some cables with long length or large specifications, steel strips will be added to the outside of the wooden reels for fixation to further enhance the firmness of the packaging.
Information such as cable model, specification, length, production date and manufacturer name will be marked on the packaging to facilitate user identification and acceptance. At the same time, some precautions, such as "Do not invert" and "Handle with care", will also be marked to remind transport and handling personnel to operate correctly.
Transportation
The transportation of cables requires choosing an appropriate transportation method, usually road transportation, railway transportation, etc. During transportation, it is necessary to ensure that the cable packaging is intact to avoid collision, extrusion and severe vibration. The transport vehicle should drive smoothly and avoid sudden braking, sharp turns and other operations to prevent the cable from shifting or being damaged due to inertia.
During transportation, attention should be paid to moisture-proof, sun-proof, high-temperature prevention and low-temperature prevention. When transporting in the rainy season, rain-proof measures should be taken to avoid the cables being wetted by rain; in summer, the cables 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 low-temperature areas in winter, attention should be paid to keeping warm to avoid the cables becoming brittle due to low temperature, which affects their performance.
Special personnel need to be arranged to be responsible for escorting during transportation. The escorts should check the packaging and cable status at any time and deal with problems in a timely manner. At the same time, transportation should be carried out in accordance with the specified route and time to ensure that the cables can be delivered to the destination on time and safely.
Delivery
The delivery link requires good preliminary preparation work. Before delivery, the staff will check the model, specification, quantity, etc. of the cables to ensure they are consistent with the order requirements. At the same time, the packaging of the cables will be inspected to ensure that the packaging is intact.
When delivering goods, logistics companies with good reputation and strong transportation capacity will be selected for cooperation. When handing over with the logistics company, relevant information about the cables and transportation precautions will be informed to the logistics company, and a transportation agreement will be signed to clarify the responsibilities of both parties.
After delivery, the logistics information will be fed back to the customer in a timely manner, including the logistics company name and waybill number, to facilitate the customer to check the transportation status of the goods. At the same time, the transportation progress of the goods will be tracked to ensure that the goods can be delivered on time. If there are abnormal situations during transportation, communication and coordination with the logistics company will be carried out in a timely manner, and corresponding solutions will be taken.
Samples
To allow customers to understand the quality and performance of the cables before bulk purchase, manufacturers provide sample services. Customers can put forward sample requirements to the manufacturer and specify the model, specification and other information of the required cables. After receiving the sample requirements, the manufacturer will prepare the samples within the specified time.
The production process of the samples is the same as that of the bulk-produced cables to ensure that the samples can truly reflect the quality and performance of the bulk products. After the samples are prepared, they will be sent to the address provided by the customer. During the sending process, the packaging will also be done well to ensure that the samples are not damaged during transportation.
At the same time, relevant quality inspection reports, product manuals and other materials will be provided with the samples to facilitate customers to understand the details of the samples. If customers have questions about the samples or need further adjustments, the manufacturer will communicate with the customers in a timely manner and provide corresponding solutions.
After-sales Service
A sound after-sales system is an important link to protect customer rights and interests. After the customer receives the cables, if they find quality problems with the cables, such as insulation layer damage and conductor breakage, they can contact the manufacturer within the specified time. The manufacturer will arrange professional personnel to verify the problem. If it is confirmed to be a product quality problem, it will carry out return or exchange processing according to the customer's requirements.
For the installation and use of the cables, the manufacturer provides technical support services. If customers encounter problems during the installation process, they can consult the manufacturer, and the manufacturer's technical personnel will provide guidance by phone, email and other means. If there are performance abnormalities and other situations during the use of the cables, the manufacturer will also respond in a timely manner to assist customers in finding the causes and providing solutions.
In addition, the manufacturer will conduct regular return visits to customers to understand the use of the cables, collect customers' opinions and suggestions, and continuously improve product and service quality. For some large-scale projects, the manufacturer can also provide on-site technical services to ensure that the installation and use of the cables meet the requirements.
In conclusion, the 3X35mm² Yjv32, Yjy32, Wdzn-Yjy32, Zr-Yjv32 and other models of steel wire armoured (Swa) cables have clear standards and characteristics in terms of specification parameters, characteristic uses, material styles and production processes. At the same time, they have perfect processes and services in terms of general information such as packaging, transportation, delivery, samples and after-sales service. All these provide a strong guarantee for the stable operation of the cables and the customer's use experience. Whether in industrial production, urban construction or public facilities and other fields, this series of cables plays an important role in providing reliable support for power transmission.
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