I. Information Related to the Product Itself
(I) Specification Parameters
The 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables have clear and precise settings in terms of specification parameters, and each parameter provides strong support for their stable operation in specific scenarios.
The core specification of this cable consists of 3 phase conductors of 95mm² and 1 neutral conductor of 50mm². This specification combination enables it to have an excellent current - carrying capacity. Under standard working conditions, the continuous current - carrying capacity of the 95mm² phase conductor can reach about 240A, which can meet the needs of high - power power transmission. The 50mm² neutral conductor can adapt to the current - carrying situation of the phase conductors, ensuring the current balance of the entire circuit.
Its rated voltage is usually 0.6/1kV, which fully meets the standards of low - voltage power distribution systems and can be perfectly compatible with common low - voltage power distribution equipment, ensuring that there will be no faults due to voltage mismatch during power transmission.
The earth core is marked with green and yellow 双色，which is an internationally accepted standard for identifying
Earth Wires. It allows installation and maintenance personnel to quickly and accurately identify the earth wire, avoiding wiring errors and adding a guarantee for electrical safety.
The sheath is made of LSZH (Low Smoke Zero Halogen) material, with an oxygen index of not less than 32%, which has good flame - retardant performance and can effectively slow down the burning speed when exposed to fire. At the same time, this sheath produces low smoke density when burning, has high light transmittance, and does not release toxic gases such as hydrogen halide, meeting relevant environmental protection and safety standards.
In addition, the insulation layer of the cable is made of XLPE (cross - linked polyethylene) material. The long - term allowable working temperature is 90℃, and the allowable working temperature can reach 250℃ in case of a short circuit (with a maximum duration of no more than 5 seconds). It can maintain stable insulation performance when the electrical load fluctuates or a short - term fault occurs. Its minimum bending radius is 12 times the outer diameter of the cable, which can adapt to a certain degree of bending and laying requirements.
The 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables are widely used in many scenarios with high requirements for safety and power transmission due to their performance advantages.
In the field of high - rise buildings, it is an ideal choice for main power distribution lines. High - rise buildings have many floors and dense personnel. Once a fire breaks out, the consequences will be unimaginable. The low - smoke and zero - halogen characteristics of the LSZH sheath of this cable in case of fire can buy valuable time for personnel evacuation and rescue. The large current - carrying capacity of the 95mm² phase conductor can meet the power demand of the entire building. It connects from the main distribution box on the ground floor to the main power distribution lines of each floor, ensuring the power supply of key facilities such as elevators, fire - fighting equipment, and lighting.
Large shopping malls are also important application scenarios for this cable. There are dense shops and many electrical equipment in shopping malls, resulting in a large electrical load. The current - carrying capacity of the 95mm² phase conductor can meet the power transmission needs of shopping malls. At the same time, there is a large flow of people in shopping malls, and the safety characteristics of the LSZH sheath are crucial. In case of a sudden fire, it can reduce the harm of toxic smoke to people, and its flame - retardant performance can reduce the risk of fire spread.
Places with dense personnel such as hospitals and schools have stricter requirements for electrical safety. Key areas in hospitals such as operating rooms and intensive care units cannot have power outages and safety hazards. The stable transmission performance and safety characteristics of this cable can ensure the power supply of these areas; areas in schools such as classrooms and dormitories have concentrated personnel, and the low - smoke, zero - halogen and flame - retardant performance of the cable can protect the safety of students and teaching staff in case of accidents.
In addition to the above scenarios, this cable can also play an important role in public transportation hubs such as subways and airports. The power distribution lines of subways and airports are often laid in closed or semi - closed spaces. The low smoke generated by the LSZH sheath will not affect the line of sight and air quality, ensuring that people can evacuate smoothly in emergency situations. At the same time, its current - carrying capacity can meet the power demand of a large number of equipment in the hubs.
(III) Material and Style
The material selection and style design of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables are fully combined with their performance requirements and application scenarios, providing a solid foundation for the safe and stable operation and convenient installation of the cables.
The conductors are made of high - purity copper with a purity of more than 99.95%. High - purity copper has excellent conductivity and extremely low resistivity, which can minimize energy loss during power transmission and ensure the efficiency of power transmission. Both the 95mm² and 50mm² conductors are stranded by multiple fine
Copper Wires. This structure enhances the
Flexibility of the conductors, enabling them to better adapt to bending paths during laying and reducing the risk of breakage. The surface of the
Copper Conductor is treated with anti - oxidation, forming a dense oxide film, which can prevent oxidation and corrosion during long - term use and storage, ensuring the stability of conductivity.
The insulation layer is made of XLPE (cross - linked polyethylene) material, which forms a three - dimensional network molecular structure through a cross - linking reaction, greatly improving its mechanical strength, aging resistance and chemical corrosion resistance. The XLPE insulation layer has excellent temperature resistance, with a long - term allowable working temperature of 90℃, and can maintain stable insulation performance in a relatively high - temperature environment. It also has high insulation resistance and low dielectric loss, which can reduce energy loss during power transmission.
The sheath is made of LSZH (Low Smoke Zero Halogen) material, which is made of polyolefin and other materials with flame retardants added and does not contain halogen elements. This material not only has good flame - retardant performance, but also has good mechanical strength and weather resistance, and can adapt to different environmental conditions such as humidity and dryness. At the same time, the surface of the LSZH sheath is smooth, which is convenient for the laying and installation of the cable.
In terms of style, the cable has a multi - core structure and is round as a whole. The multi - core structure can meet the needs of the three - phase four - wire power distribution system. The round structure enables the cable to bear uniform force during laying, facilitating winding and installation, and can better match with laying facilities such as pipes and cable trays. The green and yellow color code of the earth core is clear and eye - catching, running through the entire length of the cable, making it easy to quickly identify at any position. The outer surface of the cable is also printed with information such as model, specification, rated voltage and manufacturer, which is convenient for identification and traceability.
(IV) Production Process
The production process of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables is rigorous and complex. Each link from raw material processing to finished product inspection has strict quality control to ensure that the products meet relevant standards and design requirements.
Conductor stranding is the first step of production. High - purity copper rods are drawn into fine copper wires of the required diameter through a wire drawing process. During the wire drawing process, the wire drawing speed and die precision are strictly controlled to ensure that the diameter of the copper wires is uniform and the surface is smooth. Then, according to the specifications of 95mm² and 50mm², a corresponding number of fine copper wires are stranded by a stranding machine. During stranding, stable tension and an appropriate pitch are maintained to make the
Stranded Conductor have a compact and round structure, while ensuring the flexibility of the conductor. After stranding, the conductor is annealed to eliminate the internal stress generated during the stranding process and further improve the flexibility and conductivity of the conductor.
The insulation extrusion link is very important. First, the XLPE particles are dried to remove the moisture in the particles (the moisture content is controlled below 0.02%) to avoid bubbles in the insulation layer. The dried XLPE particles are sent to the extruder and melted at a set temperature (usually 120 - 150℃), and evenly coated on the outside of each conductor through a special extrusion die to form an insulation layer. During the extrusion process, the extrusion speed, temperature and pressure are accurately controlled to ensure that the thickness of the insulation layer is uniform (the deviation does not exceed ±0.1mm), the concentricity with the conductor is high (the eccentricity does not exceed 10%), and the surface is smooth and free of defects. After extrusion, the insulation layer is cross - linked, and the XLPE molecules are cross - linked by heating with steam or nitrogen to form a stable structure.
The cabling process involves stranding 3 insulated phase conductors of 95mm² and 1 insulated neutral conductor of 50mm² together according to a certain stranding pitch. Filling materials are placed during stranding to make the cabled cable round. At the same time, stable tension is maintained during the cabling process to prevent the cores from loosening. The earth core is laid synchronously during the cabling process, and its green and yellow color code is clearly visible.
Sheath extrusion is the last key process. The LSZH sheath material needs to go through strict proportioning and mixing to ensure that its performance meets the standards. The mixed LSZH material is sent to the extruder, melted at a suitable temperature, and evenly coated on the outside of the cabled core through an extrusion die to form a sheath. During the extrusion process, the process parameters are controlled to ensure that the sheath has a uniform thickness, a smooth surface and is closely combined with the internal core.
In the finished product inspection link, a comprehensive test is carried out on the conductivity, insulation performance, flame - retardant performance and smoke density of the cable. The conductivity of the conductor is checked through a DC resistance test, the insulation effect of the insulation layer is verified through insulation resistance and voltage withstand tests, and the performance of the LSZH sheath is inspected through flame - retardant tests and smoke density tests. Only cables with all indicators meeting the standards can leave the factory.
II. General Product Information
(I) Packaging
The packaging design of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables focuses on protecting the integrity of the cables during storage, transportation and handling, and at the same time takes into account the convenience of packaging and the clarity of identification.
For coiled cables, wooden or metal cable reels are used for packaging. The diameter of the cable reel is determined according to the length of the cable, generally 1.2 - 2 meters, to ensure that it can stably bear the weight of the cable. The cable is neatly wound on the cable reel, and appropriate tension is maintained during winding to avoid loose,
Twisted Cables or surface damage caused by mutual friction. Both sides of the cable reel are equipped with baffles, and the height of the baffles is higher than the winding height of the cable to prevent the cable from slipping during transportation and storage.
The outside of the cable reel is tightly wrapped with a plastic film to form a moisture - proof and dust - proof protective layer, preventing the cable from getting damp and contaminated with dust. For cables that need long - distance transportation or storage in a humid environment, a layer of waterproof canvas is covered outside the plastic film to further enhance the moisture - proof and sun - proof performance.
A detailed label is pasted on the baffle of the cable reel. The label is marked with product name, model (N2xh, N2xh - J, N2xh - O WDZ - YJY), specification (3×95 + 50mm²), length, production batch number, production date, rated voltage, implementation standard, manufacturer name and contact information, etc. At the same time, warning signs such as "Handle with Care", "Moisture - proof", "Sun - proof" and "Keep Away from Fire" are also marked on the label to remind relevant personnel to operate in a standardized way.
For small batches or short sections of cable samples, solid cartons are used for packaging. Foam liners are placed inside the cartons to fix the cables in the foam liners to prevent shaking and collision during transportation. Relevant product information and warning signs are also marked on the outside of the cartons.
(II) Transportation
The transportation of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables must follow strict specifications to ensure that the cables are not damaged during transportation and their performance is not affected.
The transportation method is selected according to the transportation distance and quantity. For long - distance transportation with a large quantity, railway transportation or road freight is preferred. Railway transportation has good stability and can reduce jolting during transportation. The cable reels are fixed in the freight carriage, and steel wire ropes or special fastening belts are used to firmly connect the cable reels to the carriage to prevent sliding. For road freight, trucks in good condition with sufficient carrying capacity are selected. The carriage must be flat, clean and free of sharp debris. An appropriate gap is left between the cable reels, and they are separated by buffer materials to prevent mutual collision.
Short - distance transportation can use small trucks or logistics vehicles. Special hoisting equipment is required when loading and unloading cables. The hoisting point should be selected at the central axis of the cable reel. Hoisting from the side of the cable reel or the cable itself is strictly prohibited to prevent deformation of the cable reel or damage to the cable. Handle with care during loading and unloading to avoid violent collision.
The following matters should be noted during transportation: Cables should avoid open - air transportation. If it is unavoidable, they must be covered with waterproof canvas to prevent exposure to the sun and rain; keep away from fire sources, heat sources and corrosive substances. Transport vehicles are not allowed to approach open fire areas and are not mixed with corrosive goods such as acids and alkalis; during transportation, drivers should drive steadily, avoid violent operations such as sudden braking and sharp turns, and reduce the shaking of the cable reels; regularly check the fixing of the cable reels and reinforce them in time if they are loose.
After arriving at the destination, the receiver shall check the packaging and appearance of the cable together with the transporter, and sign for it only after confirming that there is no damage. If there is packaging damage, cable appearance damage and other situations, photos should be taken and recorded in time, and communicate with the shipper and transporter for handling.
(III) Delivery
The delivery process of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables focuses on efficiency and accuracy. There are clear operating specifications for each link from order receipt to goods delivery to ensure that customers can receive qualified products on time.
After the customer places an order, the sales department promptly enters the order information into the system and transmits it to the warehouse and production department. After receiving the order, the warehouse immediately checks the inventory quantity, specifications and other information to ensure that they are consistent with the order. If there is stock, arrange for goods preparation; if it is a customized order, the production department organizes production according to the order requirements, and the production progress is timely fed back to the sales department and customers.
In the goods preparation stage, warehouse personnel conduct strict outgoing inspection on the cables. Check whether the appearance of the cable is intact, whether the label information is consistent with the order, and whether the packaging meets the requirements. At the same time, sort out the product's certificate, test report and other quality certification documents, and prepare them for delivery together with the cable.
Before delivery, the logistics department selects an appropriate transportation method and transportation company according to the order information and customer requirements, signs a transportation contract, and clarifies matters such as transportation time, transportation route and cargo insurance. For urgent orders, priority is given to arranging delivery, and transportation resources are coordinated to ensure delivery within the time required by the customer.
After the goods are delivered, the logistics department promptly feeds back the delivery information (such as the name of the transportation company, waybill number, estimated arrival time, etc.) to the customer to facilitate the customer to track the dynamics of the goods. At the same time, the quality certification documents are sent to the customer by express or electronic document. The warehouse retains delivery records, including delivery orders, transportation contracts, etc., for future reference.
If abnormal situations such as insufficient inventory and transportation delays occur during the delivery process, communicate with the customer in a timely manner, explain the situation and negotiate solutions to protect the customer's right to know and rights.
(IV) Samples
To help customers understand the performance and quality of the 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables before formal procurement, the company provides sample services. The specifications, materials and performance of the samples are completely consistent with those of mass - produced products.
Customers can apply for samples through sales personnel, the company's official website, customer service hotlines and other channels. When applying, they need to provide information such as the model, specification, quantity (usually 1 - 3 meters), purpose and contact information of the required samples. Sample applications from customers with clear procurement intentions will be processed first.
Samples are prepared in strict accordance with mass production processes and standards. Special tools are used when cutting cables to ensure flat cuts without burrs. The two ends of the samples are sealed to prevent moisture and impurities from entering. Samples are packaged in small sealed bags or small cable reels. The packaging is marked with sample name, specification, production batch number and other information, and is accompanied by sample descriptions and simple quality test reports (including key indicators such as flame - retardant performance and insulation performance).
In terms of sample fees, for potential major customers or those with clear procurement plans, samples can be provided free of charge, with only express fees charged. For general consulting customers, a small sample fee (covering material and processing costs) is charged. If a purchase is made later, the sample fee can be deducted from the payment.
Samples are usually shipped within 3 - 5 working days after receiving the application, and a suitable express method is chosen based on the customer's location. After the samples are shipped, the express waybill number is promptly informed to the customer, allowing them to track the logistics information. After customers receive the samples, if they have any questions about the samples, technical personnel can provide professional consulting services.
(V) After - sales Service
The after - sales service system for 3×95 + 50mm² N2xh, N2xh - J, N2xh - O WDZ - YJY cables is well - established, committed to providing customers with comprehensive support, solving problems encountered by customers during product use, and safeguarding their legitimate rights and interests.
The warranty period of this cable is 24 months from the date of delivery. During the warranty period, if the cable has faults caused by its own quality issues (such as insulation layer breakdown, conductor breakage, sheath cracking and other faults not caused by human factors), customers can apply for free repair or replacement with the purchase certificate and quality certification documents.
After a customer submits an after - sales application, the after - sales department will respond within 24 hours and arrange technical personnel to communicate with the customer to understand the fault situation. Technical personnel make a preliminary judgment based on the customer's description. For simple problems, they guide the customer to check and handle them through phone calls or videos. If on - site handling is required, technical personnel will be arranged to arrive at the site within 48 hours (except for special areas).
During on - site service, technical personnel conduct a comprehensive inspection of the cable to determine the cause of the fault. If it is indeed a quality problem, they will replace or repair the cable for the customer free of charge and provide a warranty for the replaced cable. If the fault is caused by non - quality reasons such as improper installation by the customer, unqualified use environment, or man - made damage, paid repair services will be provided with transparent charging standards, which are communicated and confirmed with the customer in advance.
In addition, the company also provides technical support services, including consultation and guidance on cable laying, installation, maintenance, etc. It can provide technical manuals or on - site guidance at the request of customers. Regular return visits are made to customers to understand the use of cables, collect customers' opinions and suggestions, and continuously improve products and services.
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