Electric Wire Power Cable Electrique Nyy Nym Vgv 3X1.5mm2 3X2.5mm2 3X4mm2 3X6mm2

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2025-07-25 08:31:49

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Introdução ao produto

Comprehensive Analysis of Wire and Cable Products

I. Information Related to the Products Themselves

(I) Specification Parameters

The wires and cables introduced this time include models such as NYY, NYM, and VGV, with common specifications of 3×1.5mm², 3×2.5mm², 3×4mm², and 3×6mm².

In terms of parameters related to conductive performance, the current - carrying capacity of cables with different specifications varies. The current - carrying capacity of 3×1.5mm² cables is usually around 10 - 16A; that of 3×2.5mm² cables is about 16 - 25A; 3×4mm² cables can reach 25 - 32A; and 3×6mm² cables have a current - carrying capacity of 32 - 40A. These current - carrying capacity data are obtained based on standard usage environments. In actual use, if the ambient temperature is too high or the laying method is special, the current - carrying capacity will decrease to a certain extent.

In terms of dimensional parameters, in addition to the conductor cross - sectional area, the outer diameter of the cable also varies depending on the model and specification. Taking Nyy Cables as an example, the outer diameter of 3×1.5mm² is approximately 8 - 10mm; that of 3×2.5mm² is about 9 - 11mm; 3×4mm² is around 10 - 12mm; and 3×6mm² is about 11 - 13mm. Because NYM cables have a light - duty sheath, their outer diameter is slightly smaller than that of Nyy Cables with the same specification. VGV Cables have a relatively larger outer diameter due to their rigid sheath.

(II) Characteristic Uses

Cables of different models and specifications have their own unique uses and can meet diverse power transmission needs.

NYY cables, with good corrosion resistance and mechanical strength, perform well in fixed laying scenarios. In buildings, they can be laid concealed, such as in pipelines inside walls and floors, without affecting the aesthetics of the building. At the same time, they are also suitable for direct underground burial, being able to resist corrosive substances in the soil and a certain amount of pressure, ensuring the stability of power transmission underground. For example, in the laying of main Power Lines in residential communities, NYY cables are often chosen for direct underground burial to ensure the continuous power supply for residents.

NYM cables, with good Flexibility, are widely used in home wiring and connection of small electrical appliances. During home decoration, they can flexibly pass through various pipelines and are used for the arrangement of lighting circuits and ordinary socket circuits in rooms. For the connection of small electrical appliances such as electric fans, televisions, and microwave ovens to the power supply, NYM cables can also perform well. Their soft nature makes the lines less likely to be damaged when the placement of electrical appliances is adjusted.

As rigid Sheathed Cables, VGV cables have strong impact resistance and play an important role in industrial and outdoor scenarios. In industrial equipment, such as the power connection of machine tools and production lines, VGV cables can withstand vibrations and a certain amount of impact generated during the operation of the equipment, ensuring stable power input. In terms of outdoor power facilities, such as the power transmission of street lamps and outdoor distribution boxes, they can resist the impact of external factors such as wind, rain, and collisions, reducing the probability of failures.

From the perspective of power scenarios corresponding to specifications, 3×1.5mm² and 3×2.5mm² cables have moderate current - carrying capacity and are ideal choices for low - power electricity scenarios in homes. In terms of home lighting, whether it is chandeliers, ceiling lamps, or wall lamps, their power is relatively low, and these two specifications of cables are sufficient to meet the power transmission needs of lighting circuits. Most of the electrical appliances connected to ordinary sockets are low - power ones, such as mobile phone chargers and small humidifiers. Using these two types of cables can ensure electrical safety.

3×4mm² and 3×6mm² cables have larger current - carrying capacity and are suitable for high - power electrical appliances and small power equipment. High - power electrical appliances such as air conditioners, electric water heaters, and electric ovens require a large current during operation. 3×4mm² cables can be used for high - power electrical appliances with relatively lower power, such as air conditioners below 1.5 horsepower; 3×6mm² cables are suitable for electrical appliances with higher power, such as air conditioners of 2 horsepower and above, and large - capacity electric water heaters. In terms of small power equipment, such as small air compressors and small water pumps, their power supply can also rely on these two specifications of cables to ensure the normal operation of the equipment.

(III) Material Styles

In terms of materials, cables of different models have their own characteristics. NYY cables adopt cross - linked polyethylene insulation and polyvinyl chloride sheathing. The cross - linked polyethylene Insulation Material has excellent electrical properties, high insulation resistance, and good corona resistance, which can effectively reduce losses during power transmission. At the same time, it also has good heat resistance and can maintain stable performance within a certain temperature range. The polyvinyl chloride sheath provides good protection for the cable, with characteristics such as chemical corrosion resistance and wear resistance, extending the service life of the cable.

NYM cables are light - duty polyvinyl chloride insulated and sheathed cables, with both insulation and sheath materials being polyvinyl chloride. This material makes the cable have good flexibility, and also has certain insulation performance and mechanical strength, which can meet the basic requirements of homes and small electrical appliances for cables.

The rigid sheath of VGV cables usually adopts special plastic or metal materials, and the internal insulation materials are also selected with good electrical properties. The rigid sheath material endows the cable with strong impact resistance and protection ability, which can protect the internal conductors and insulation layers from external damage.

In terms of style, these cables are all multi - Core Cables. The 3 - core design enables them to transmit three - phase electricity or realize the simultaneous transmission of live wire, neutral wire, and Ground Wire, meeting the needs of different electrical scenarios. In appearance, cables of different models have different colors for easy distinction and identification. For example, common colors of NYY cables include black and gray; NYM cables may have colors such as white and blue; VGV cables are mostly dark colors, such as black and dark gray, which are more suitable for industrial and outdoor environments.

(IV) Production Process

The production process of NYY cables is relatively rigorous. Firstly, for the manufacture of conductors, high - purity copper or aluminum is selected as the Conductor Material. It is drawn into wires of the required diameter through a wire drawing process and then stranded to improve the flexibility and mechanical strength of the conductor. Next, for the extrusion of the insulation layer, the cross - linked polyethylene material is heated and melted in special equipment and then uniformly extruded onto the surface of the conductor to form the insulation layer. After that, it is necessary to carry out cross - linking treatment on the Insulated Wire core. By heating and other methods, the polyethylene molecules form a cross - linked structure to enhance the performance of the insulation layer. Finally, the sheath is extruded. The polyvinyl chloride material is extruded outside the insulated wire core to form the sheath, followed by cooling, curing, and other treatments.

The production process of NYM cables is relatively simpler. The conductor manufacturing also adopts wire drawing and stranding processes. Both the insulation layer and the sheath layer use polyvinyl chloride materials. The insulation material and the sheath material are sequentially extruded onto the conductor through an extruder. During the extrusion process, parameters such as temperature and speed should be controlled to ensure that the thickness of the insulation layer and the sheath layer is uniform and the surface is smooth. During the production process, the size and insulation performance of the cable also need to be tested to ensure product quality.

Due to the rigid requirements of the sheath, the production process of VGV cables has its particularities. The molding of the sheath material may adopt processes such as injection molding or pressing to ensure that the sheath has sufficient strength and rigidity. The production of the insulation layer is similar to that of other cables, and it is necessary to ensure that the insulation performance meets the standards. During the production process, attention should be paid to the firmness of the combination between the insulation layer and the sheath layer to avoid problems such as delamination. At the same time, the impact resistance of the cable is strictly tested to ensure that it meets relevant standards.

All models of cables need to go through multiple quality inspection procedures during the production process, such as conductor resistance testing, insulation resistance testing, voltage withstand testing, and mechanical performance testing, to ensure that the products meet relevant safety standards and performance requirements.

II. General Product Information

(I) Packaging

To ensure that the cables are not damaged during storage and transportation, the packaging link is crucial.

For coiled cables, wooden reels or plastic reels are usually used for winding and packaging. Wooden reels have good load - bearing capacity and stability and are suitable for packaging cables of larger specifications and longer lengths. The size of the wooden reel is determined according to the specification and length of the cable. Generally, information such as the model, specification, length, and weight of the cable will be marked on the wooden reel. After the cable is wound onto the wooden reel, it will be wrapped with plastic film or linen to prevent dust, moisture, etc. from entering.

For small - specification and short - length cables, carton packaging may be adopted. Buffering materials such as partitions or foam will be placed inside the carton to prevent the cables from shaking and colliding in the box. Relevant product information will also be printed on the carton for easy identification and handling.

Whether it is wooden reel packaging or carton packaging, it is necessary to ensure that the packaging is firm and can withstand bumps and squeezes during transportation. At the same time, packaging materials should meet environmental protection requirements and be recyclable.

(II) Transportation

The transportation of cables needs to consider multiple factors to ensure that the products arrive at the destination safely.

In terms of transportation mode selection, according to the quantity, specification, and transportation distance of the cables, road transportation, railway transportation, or waterway transportation can be adopted. Road transportation has high flexibility and is suitable for the transportation of short - distance and small - to medium - batch cables, which can directly deliver the goods to the designated location. Railway transportation is suitable for the transportation of large - batch and long - distance cables, with the advantages of large transportation volume and relatively low cost. Waterway transportation is applicable to coastal areas or areas with inland waterway transportation conditions and is suitable for the transportation of cables packaged in large wooden reels.

During transportation, the following matters need to be noted: Cables should be placed flat to avoid tilting or inverting to prevent them from slipping off the packaging reels. Transportation vehicles or means of transport should remain stable to avoid severe bumps and collisions. During loading and unloading, special hoisting equipment should be used to avoid cable damage caused by manual handling. At the same time, attention should be paid to the weather conditions. When transporting in rainy days, the cables should be covered with rainproof covers to prevent them from getting damp.

For exported cables, they also need to meet the transportation standards and requirements of relevant countries and regions and go through the necessary transportation procedures and documents.

(III) Shipment

The shipment process includes links such as order confirmation, stock preparation, outgoing inspection, and transportation arrangement.

After receiving a customer's order, the staff will first confirm the order information, including the model, specification, quantity, delivery address, and delivery time of the cable, to ensure consistency with the customer's needs. Then, stock preparation is carried out to retrieve the corresponding cable products from the warehouse. After the stock preparation is completed, outgoing inspection of the cables is conducted to check whether the packaging of the products is intact, the labels are clear, and the quantity is accurate, so as to ensure that the shipped products meet the quality requirements.

After passing the inspection, transportation vehicles are arranged, and the cables are loaded onto the vehicles. At the same time, the shipment information is promptly notified to the customer, including the transportation vehicle information and the estimated arrival time, to facilitate the customer's preparation for receiving the goods. During the shipment process, the goods will be tracked to keep abreast of the transportation status of the goods. In case of any abnormal situation, communication and solutions will be carried out with the customer and the transportation party in a timely manner.

(IV) Samples

To allow customers to better understand the products, the company provides sample services. Customers can apply to the company for cable samples of the required models and specifications according to their own needs.

The application process for samples is simple and convenient. Customers can apply by phone, email, online platform, etc., and provide relevant contact information, address, and other information. After receiving the sample application, the company will arrange for the preparation and delivery of the samples within 1 - 3 working days.

The specification of the samples is usually 1 - 2 meters long cables, which can meet the customer's preliminary understanding of the product's appearance, material, flexibility, etc. Samples are generally provided free of charge, but customers may need to bear the mailing cost of the samples.

When sending samples, relevant product materials such as sample labels and product manuals will be attached to facilitate customers' understanding of sample information. At the same time, the company will track the delivery status of the samples to ensure that customers can receive the samples in a timely manner. After receiving the samples, if customers have any questions, the company will arrange professional personnel to answer them.

(V) After - sales Service

The company attaches great importance to after - sales service and provides customers with comprehensive support and guarantees.

In terms of product quality, if the cables received by customers have quality problems, such as damaged insulation layers and broken conductors, and it is confirmed that they are product quality problems within the warranty period (usually 1 - 2 years), the company will provide free return and exchange services. Customers need to provide relevant purchase certificates and photos or videos of product quality problems for the company's verification.

In terms of technical support, the company has a professional technical team that can provide customers with technical consultation on cable selection, installation, and use. When customers encounter any technical problems during the use of cables, they can contact the company's after - sales service personnel to get timely answers and guidance. For example, if customers have questions about the laying method when installing NYY cables, technical personnel will provide detailed installation suggestions according to the actual situation.

During use, if there is damage that is not a quality problem, such as damage caused by improper installation or the use environment exceeding the product's bearing range, the company can provide maintenance services and charge corresponding fees according to the difficulty of maintenance and the required materials.

In addition, the company will conduct regular return visits to customers to understand the use of products, collect customers' opinions and suggestions, and continuously improve product and service quality.