Details of Ea2xy, Eay2y, Eayy, Ey2y, Eyy Low-Voltage Underground Power Cables
I. Information Related to the Product Itself
(I) Specification Parameters
The Ea2xy, Eay2y, Eayy, Ey2y, and Eyy series of low-voltage underground
Power Cables have clear and rigorous setting in terms of specification parameters to meet various needs of underground low-voltage power distribution.
This series of cables are all low-
Voltage Cables, with a rated voltage adapted to the standards of low-voltage power distribution systems, and can stably cope with daily low-voltage power transmission work. In terms of conductor specifications, according to the design of different models, the conductor cross-sectional area covers a variety of common specifications, which can meet the needs of different current loads. Whether it is underground power distribution in small residential communities or power transmission in medium-sized municipal underground projects, a suitable specification can be found.
The insulation thickness of the cable is accurately calculated and meets relevant standard requirements. Sufficient insulation thickness ensures that the cable has good insulation performance in the complex underground environment, which can effectively isolate the current and prevent electric leakage. At the same time, the outer diameter of the cable is also optimized. On the premise of ensuring performance, it is convenient to lay in underground pipelines, cable trenches and other spaces.
The specification of the armoured layer (if any) also has strict standards. Its thickness and strength can provide effective mechanical protection for the cable, resist the pressure of underground soil and possible external impacts, and ensure the structural integrity of the cable during laying and use.
(II) Characteristic Uses
Based on its characteristics specially designed for underground scenarios, this series of cables have distinct and targeted characteristic uses.
It plays an important role in the urban underground power distribution network. The urban underground power distribution network is a key link in urban power supply, requiring cables to operate stably underground for a long time. This series of cables can safely and stably transmit power from substations to power distribution points in various urban areas, meeting the power needs of urban residents' lives and commercial activities. Its corrosion resistance and mechanical strength can adapt to the complex underground soil environment of cities and the possible impact of frequent underground construction.
Underground Cable trenches in residential communities are another important application scenario. With the continuous development of residential communities, under
Ground Cable trenches have become a common way of community power distribution. This series of cables are laid in the underground cable trenches of the community, transmitting power from the community power distribution room to each building, providing guarantee for residents' household electricity. Its
Flexibility is convenient for laying and arrangement in cable trenches, and its good insulation performance ensures the safety of residents' electricity use.
Municipal underground projects, such as underground comprehensive pipe corridors and underground parking lots, also use this series of cables in large quantities. There are many pipelines in the underground comprehensive pipe corridor, and the environment is relatively special, which has high requirements for cable performance. This series of cables can work stably in such an environment, providing power support for lighting, ventilation, monitoring and other equipment in the pipe corridor. The power supply of underground parking lots is also inseparable from it, and its reliable performance can ensure the normal operation of lighting, charging piles and other equipment in the parking lot.
In addition, in the underground power distribution systems of some industrial parks, this series of cables can also play a good role, providing stable low-voltage power for enterprises in the park.
(III) Material and Style
Conductor Material: The conductors of this series of cables are made of high-quality materials that meet national standards, usually high-purity copper or aluminum. Copper Conductors have excellent electrical conductivity and good ductility, which can ensure the efficiency and stability of power transmission; Aluminum Conductors have the advantages of light weight and relatively low cost, and are widely used in some scenarios sensitive to weight and cost. Both copper and Aluminum Conductors have undergone strict process treatment, with smooth surfaces and low impurity content, further improving their conductivity.
Insulation and Protection Materials: The insulation layer is made of high-quality Insulation Materials, such as polyvinyl chloride (PVC) and cross-linked polyethylene (XLPE). These materials have good insulation performance, aging resistance and chemical corrosion resistance, which can effectively prevent current leakage and protect the internal structure of the cable. If the protective layer (such as the armoured layer) is made of materials such as steel strips or steel wires, it can provide strong mechanical protection for the cable, resisting the pressure of underground soil and external impacts; the outer sheath is made of highly corrosion-resistant materials, further enhancing the cable's resistance to underground humid, acid-base and other environments.
Style Design: The cable adopts an overall circular structure design, which is not only conducive to the laying and arrangement of the cable in underground spaces, but also enables the cable to bear force evenly, improving its compressive performance. Some models of cables are equipped with armoured layers, which tightly wrap around the outside of the cable, forming a solid protective barrier. At the same time, the cable has a certain degree of flexibility, which can adapt to the bending and turning of underground laying paths, facilitating the operation of construction personnel.
(IV) Production Process
The production process of this series of cables strictly follows relevant standards and specifications to ensure that the product quality meets the requirements of underground use.
In the conductor manufacturing link, high-quality copper rods or aluminum rods are selected and drawn into wires with the required diameter through a wire drawing process. During the wire drawing process, the drawing speed and temperature are strictly controlled to ensure the dimensional accuracy and mechanical properties of the wires. Then, multiple wires are stranded together to form a conductor through a stranding process, which can improve the flexibility and mechanical strength of the conductor.
Insulation layer extrusion is one of the key processes. After heating and melting the insulation material, it is evenly extruded and wrapped on the surface of the conductor through an extruder to form an insulation layer. During the extrusion process, the extrusion temperature, pressure and speed are accurately controlled to ensure that the insulation layer has a uniform thickness, a smooth surface, is closely combined with the conductor, and has no defects such as bubbles and impurities.
If the cable is equipped with an armoured layer, armouring treatment is carried out outside the insulation layer. A special armouring machine is used to wrap steel strips or steel wires around the outside of the cable at a certain angle to form an armoured layer. During the wrapping process, the tightness and uniformity of the armoured layer are ensured to achieve a good protective effect.
Finally, the outer sheath is extruded (if any). The outer sheath material is also strictly selected and extruded outside the armoured layer (or insulation layer) through an extruder to further enhance the protective performance of the cable. After production, the cable needs to undergo a series of strict tests, such as insulation resistance test, voltage withstand test and mechanical performance test, and only qualified products can leave the factory.
II. General Product Information
(I) Packaging
To ensure that the cable is not damaged during transportation and storage, the packaging design of this series of cables is scientific and reasonable.
Cables are usually packaged with wooden or iron reels. Wooden reels are made of hard and non-deformable wood and undergo drying treatment to prevent mildew and deformation due to moisture during storage and transportation. Iron reels are welded with high-strength steel, which is strong and durable, can bear a large weight, and is suitable for long-distance transportation and packaging of a large number of cables.
The length of each reel of cable varies according to the model and specification, usually 100 meters, 200 meters or 300 meters and other standard lengths. When winding the cable, ensure that the cable is arranged neatly and tightly to avoid mutual winding and extrusion, and reduce wear on the cable surface.
The outside of the package will be wrapped with a layer of waterproof plastic film to prevent rain and moisture from entering and protect the cable from moisture. At the same time, the product model, specification, length, manufacturer, production date and other information are clearly marked on the package for users to identify and trace. For export products, corresponding English logos and certification marks will be marked according to export requirements.
(II) Transportation
There are strict specifications and requirements for the cable transportation link to ensure the quality of the cable during transportation.
The transportation method is selected according to the transportation distance and quantity. For short-distance transportation, truck transportation is generally used. The truck compartment must be kept clean and dry to avoid the cable from contacting sharp objects. During transportation, the cable reel should be fixed firmly to prevent rolling and collision. For long-distance transportation, railway or container transportation can be chosen. Railway transportation has good stability and is suitable for long-distance transportation of a large number of cables; container transportation can provide better protection for cables and avoid being affected by the external environment.
During transportation, the cable should be avoided from direct sunlight, rain and extreme temperatures. In high temperature in summer, sunshade treatment can be carried out on the cable; in low temperature in winter, it is necessary to prevent the cable from becoming brittle and damaged due to low temperature. When loading and unloading cables, special hoisting equipment must be used, and rough loading and unloading are strictly prohibited to avoid damage to the cable reel and cable.
(III) Delivery
The delivery process of this series of cables is efficient and standardized to ensure that users can receive qualified products in a timely manner.
After the user places an order, the manufacturer will confirm the order as soon as possible, including product model, specification, quantity, delivery address and other information. After confirmation, retrieve the corresponding products from the warehouse and conduct pre-shipment inspection on the products, checking whether the product packaging is intact, the logo is clear, and whether the product has appearance defects, etc.
After passing the inspection, arrange transport vehicles and timely inform the user of the delivery information, including transportation method, transport vehicle license plate number, estimated arrival time, etc. For urgent orders, the manufacturer will give priority to arranging production and delivery to meet the user's urgent needs.
During the delivery process, the manufacturer will properly fix and protect the cable to ensure that the cable will not be damaged during transportation. At the same time, complete delivery documents, such as delivery notes and product certificates, are provided to facilitate user acceptance.
(IV) Samples
To allow users to better understand the performance and quality of the product, the manufacturer provides sample services.
Users can apply for samples through the manufacturer's sales channels, such as telephone, email, online platforms, etc. When applying, it is necessary to indicate the model and specification of the required samples. After receiving the sample application, the manufacturer will prepare the samples within 1-3 working days.
Samples are generally 1-2 meters long, which can fully show the appearance, material, structure and other characteristics of the cable. The packaging of samples is similar to that of formal products to ensure that the samples are not damaged during transportation.
In terms of sample costs, the samples themselves are usually free, but users need to bear the sample transportation costs. For major customers with clear cooperation intentions, the manufacturer may consider bearing part or all of the sample transportation costs. Samples are sent by express, and the manufacturer will timely inform the user of the express waybill number to facilitate the user to track the logistics information of the samples.
(V) After-Sales Service
The manufacturer provides perfect after-sales service to solve problems encountered by users during product use.
In terms of product quality assurance, this series of cables enjoy a certain warranty period, generally 1-3 years. Within the warranty period, if the product fails due to its own quality problems, the manufacturer will provide users with free repair or replacement services.
In terms of technical support, the manufacturer has a professional technical team to provide users with technical consultation and guidance. Users can contact the manufacturer's technical personnel at any time when encountering any technical problems in the process of cable selection, laying, installation and use. The technical personnel will provide users with solutions by means of telephone, email, on-site guidance, etc.
The after-sales service response is timely. The manufacturer will respond within 24 hours after receiving user feedback. For problems that need on-site handling, the manufacturer will arrange technical personnel to go to the site for handling as soon as possible.
In addition, the manufacturer will also conduct regular visits to users to understand the use of products, collect users' opinions and suggestions, and continuously improve product and service quality.
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