I. Information Related to the Product Itself
(I) Specification Parameters
DC Power Cable 2
16mm² and 210mm² are two types of 2-core single-phase aluminum-core DC
Power Cables specially designed for house wiring. All their specification parameters are in line with the needs of household DC electricity scenarios.
Current-carrying capacity is one of the core parameters of these two types of cables. Under standard environmental conditions (ambient temperature of 25°C, laid in the air), the current-carrying capacity of the 210mm² cable is about 30-40A; the current-carrying capacity of the 216mm² cable is relatively larger, reaching 40-55A. However, the current-carrying capacity will be affected by the laying environment. If it is in a high-temperature environment (such as when the indoor temperature is high in summer) or laid in a pipe (which is not conducive to heat dissipation), the current-carrying capacity will decrease, and a correction factor of 0.8-0.9 is usually required.
The outer diameter of the cables also varies with specifications. The outer diameter of the 210mm² cable is approximately 12-15mm; the outer diameter of the 216mm² cable is about 15-18mm. Such outer diameter sizes allow them to easily pass through the pipelines in the walls and floors of the house, meeting the installation needs of house wiring.
In addition, the DC resistance of the two types of cables also has clear standards. The DC resistance of the 2
10mm² aluminum-Core Cable at 20°C shall not be greater than 0.282Ω/km; the DC resistance of the 216mm² aluminum-core cable at the same temperature shall not be greater than 0.176Ω/km, which can effectively reduce the loss during power transmission and ensure the efficiency of power transmission. Their rated voltage is usually DC 500V and below, which can fully meet the voltage requirements of household DC electrical appliances.
(II) Characteristic Uses
Relying on their own characteristics, these two types of DC power cables have clear and practical application scenarios in household DC power wiring, and can accurately match the needs of DC electrical appliances with different powers.
The 210mm² cable has a moderate current-carrying capacity and is an ideal choice for small-power DC equipment in the home. In terms of home lighting, DC lamps (such as DC ceiling lamps, DC wall lamps, etc.) generally have low power, usually between 10-50W. The 210mm² cable can stably supply power to them, ensuring that the lights are normally on without safety hazards due to overload. Small DC chargers are also common application objects. Such as mobile phone DC chargers, tablet computer chargers, small DC shaver chargers, etc. These devices usually have a power of 10-30W. Using 2*10mm² cables for wiring can ensure the stability and safety of the charging process. In addition, small DC devices in the home, such as DC night lights and DC decorative lights, are also suitable for power connection with this specification of cable.
The 216mm² cable has a larger current-carrying capacity and is suitable for DC electrical appliances with slightly higher power in the home. The power of the DC air conditioner indoor unit is relatively high, generally around 500-1500W. The 216mm² cable can meet its power transmission needs and ensure the stable operation of the air conditioner during cooling or heating. The power of small DC water heaters is usually 1000-2000W, and 216mm² cables are also needed to provide power support to ensure that they can normally heat water. In addition, for slightly higher-power DC equipment in the home, such as DC dehumidifiers (with a power of about 500-1200W), using 216mm² cables for wiring can avoid affecting the use of the equipment due to insufficient power transmission.
From the overall planning of home wiring, these two types of cables can achieve precise power supply by region and equipment. In areas dominated by small-power DC equipment such as bedrooms and living rooms, 210mm² cables can be used; in areas that may have slightly higher-power DC electrical appliances such as kitchens and bathrooms, 216mm² cables can be selected, making the layout of the home DC power system more reasonable and efficient.
(III) Material and Style
In terms of material selection and style design, these two types of DC power cables fully consider the use needs and environmental characteristics of home wiring.
In terms of materials, the conductor is made of
Aluminum Core. As a
Conductor Material, aluminum has slightly worse conductivity than copper, but its cost is lower, which can reduce the overall cost of home wiring. At the same time, aluminum is lighter in weight, which is more convenient for handling and laying during wiring and reduces construction difficulty. Moreover, the aluminum core after special treatment has certain oxidation resistance, which can prolong the service life of the cable.
The insulation layer usually uses PVC (polyvinyl chloride) material. The
PVC Insulation layer has good insulation performance, which can effectively prevent current leakage and ensure home electricity safety. It also has excellent temperature resistance, with a long-term working temperature of up to 70°C, which can adapt to temperature changes in the home environment. In addition, PVC materials also have certain corrosion resistance and wear resistance, which can resist slight corrosive substances and daily friction that may exist in the home environment and protect the internal aluminum core from damage.
In terms of style, both types of cables have a 2-core design, which is suitable for single-phase circuits. The two cores can transmit current and form a loop respectively. The overall shape of the cable is cylindrical with a simple appearance. The color is mostly white or light gray, which is easy to integrate with the home decoration style and will not appear obtrusive. The surface of the cable is clearly printed with marks such as model, specification, rated voltage and manufacturer, which is convenient for construction personnel to identify and later maintenance.
(IV) Production Process
The production process of these two types of DC power cables is carried out around the needs of home wiring, focusing on product quality and performance stability. The specific process is as follows:
First is the manufacture of
Aluminum Core Conductors. High-purity aluminum rods are selected as raw materials, and the aluminum rods are drawn into
Aluminum Wires of the required diameter through a wire drawing machine. During the wire drawing process, the drawing speed and die precision are strictly controlled to ensure uniform diameter of the
Aluminum Wires. Subsequently, multiple aluminum wires are stranded to form an aluminum core conductor. During stranding, the aluminum wires are arranged closely and stably to enhance the mechanical strength and
Flexibility of the conductor, facilitating subsequent laying.
Next is insulation extrusion. The PVC material is heated and melted in an extruder, and then uniformly coated on the surface of the aluminum core conductor to form an insulation layer. During the extrusion process, the temperature (usually 150-180°C), pressure and extrusion speed are accurately controlled to ensure that the insulation layer has a uniform thickness (the insulation layer thickness of 210mm² cable is not less than 0.8mm, and that of 216mm² cable is not less than 1.0mm), and the surface is smooth without defects such as bubbles and impurities. The uniformity of the insulation layer directly affects the insulation performance of the cable and is a key link to ensure electricity safety.
Then is the cabling process. The two cores with insulation layers are cabled according to a certain stranding method to make the cable structure more stable. During cabling, filling materials (such as polypropylene rope) can be added as needed to make the cable shape more round and facilitate subsequent sheath processing.
Finally, the sheath processing (some cables may omit this step and directly use the insulation layer as the outer layer). If there is a sheath, PVC material is also used, which is coated on the outside of the cabled core through an extruder. After extrusion, the cable is cooled and shaped in a cooling water tank, and then printed, cut and wound.
During the production process, multiple quality inspections are required. Such as testing the aluminum core diameter, insulation layer thickness, insulation resistance, voltage withstand performance, etc., to ensure that each batch of cables meets relevant standards. Only cables that pass the inspection can be sold in the market.
II. General Product Information
(I) Packaging
To ensure the integrity of the cables during transportation and storage, the packaging design of these two types of DC power cables focuses on protection and convenience.
For coiled cables (each coil is usually 100 meters or 200 meters long), hard paper reels are used for packaging. The paper reels are made of high-strength cardboard and can bear the weight of the cables. The cables are neatly wound on the paper reels, and the tension is controlled during winding to avoid loose or over-stretched cables. Baffles are installed on both sides of the paper reel to prevent the cables from slipping during transportation. The outer layer of the cable is wrapped with a layer of plastic film to prevent moisture and dust and avoid contamination of the cable surface. The paper reel is clearly marked with the model, specification, length, weight, manufacturer and other information of the cable, which is convenient for identification and counting.
Short-length cables (such as 10 meters or 20 meters per coil) are packaged in cartons. The cartons are made of corrugated paper, and foam boards or soft plastic bags are placed inside to fix the cables in the cartons to prevent the cables from being worn on the insulation layer due to shaking and collision during transportation. The surface of the carton is printed with product information and warning signs such as "Handle with Care" and "Moisture-proof".
Packaging materials are all environmentally friendly and recyclable, in line with the concept of green development. At the same time, the packaging size is reasonably designed, which is convenient for handling and storage and can save transportation and storage space.
(II) Transportation
The transportation of cables needs to choose appropriate methods according to the quantity and distance, and take good protective measures to ensure safe delivery.
In terms of transportation methods, small trucks are used for small batches and short-distance transportation (such as intra-city distribution). Small trucks have high flexibility and can be directly delivered to the construction site or the customer's designated warehouse. For large batches and long-distance transportation, large trucks or logistics lines are selected to reduce transportation costs. During transportation, mixing with sharp and corrosive items is avoided to prevent damage to the cables.
Protective measures during transportation are crucial. Cables should be placed flat during loading and must not be tilted or inverted. Cables packaged with paper reels should be fixed firmly to prevent rolling and collision during transportation. When transporting in rainy days, the cables must be completely covered with rainproof cloth to avoid being soaked by rainwater. When transporting in high-temperature weather, try to avoid the cables being exposed to the sun for a long time. Transportation can be carried out in cool periods to prevent the PVC insulation layer from aging due to high temperature.
Special tools (such as forklifts) are used when loading and unloading cables. Manual dragging or throwing is strictly prohibited. The loading and unloading process should be handled with care to protect the cable packaging and the cable itself from damage.
(III) Shipment
The shipment process is standardized and orderly to ensure that the cables are delivered to customers in a timely and accurate manner. The specific steps are as follows:
Order confirmation: After receiving the customer's order, the sales staff checks the cable model, specification, quantity, delivery address, delivery time and other information to ensure consistency with the customer's needs. At the same time, the payment status is confirmed, and the payment or advance payment is collected in accordance with the contract agreement.
Stock preparation: Warehouse managers retrieve the corresponding cables from the inventory according to the order information and check whether the cable packaging is intact and the marks are clear. If the inventory is insufficient, the production department is promptly notified to arrange production to ensure that the stock preparation is completed within the agreed delivery period.
Outgoing inspection: Quality inspectors conduct random inspections on the prepared cables, including appearance, insulation layer thickness, DC resistance and other items. Only qualified cables can be delivered out of the warehouse. After passing the inspection, a product quality inspection report is issued.
Arranging transportation: A suitable transportation method is selected according to the delivery address and quantity. A transportation agreement is signed with the transporter to clarify the responsibilities of both parties. After loading the cables into the transport vehicle, the customer is informed of the transport vehicle information, estimated arrival time, etc.
Cargo tracking: After shipment, the transportation status of the goods is tracked in real time and fed back to the customer in a timely manner. If abnormalities (such as delays, damage) occur during transportation, communication with the transporter is carried out immediately to solve the problem, and the customer is informed of the progress of the handling.
(IV) Samples
To help customers understand the products, the company provides sample services with a simple process, as follows:
Sample application: Customers can apply for samples by phone, email, online platform, etc., stating the required model (210mm² or 216mm²), quantity and receiving information.
Sample preparation: The company prepares samples within 1-2 working days after receiving the application. The length of the sample is usually 1-2 meters, which is cut from qualified products to ensure consistent quality with bulk products. The sample is marked with model, specification and other information, and is accompanied by a product manual.
Sample delivery: Samples are sent by express, with simple protection packaging (such as hard envelopes or small cartons) to prevent damage during transportation. Samples are provided free of charge, and the express fee is borne by the customer.
Sample tracking: After sending, the customer is promptly informed of the express waybill number to facilitate the customer's query of logistics. After receiving the samples, if the customer has any questions (such as material, performance, etc.), professional personnel will answer them in a timely manner.
(V) After-sales Service
The company attaches great importance to after-sales service and provides customers with comprehensive guarantees to ensure that customers have no worries during use:
Quality assurance: The product warranty period is 1 year (from the date of receipt). Within the warranty period, if there are product quality problems (such as electric leakage caused by insulation layer damage, conductor breakage, etc.), customers can apply for free return, replacement or repair with the purchase certificate.
Technical support: Professional technical consultation is provided, such as cable selection (recommending specifications according to the power of electrical appliances) and laying methods (how to pass through wall pipelines). Customers can consult by phone or online customer service. Technical personnel will reply within 24 hours and can provide on-site guidance if necessary.
Maintenance service: For faults caused by non-quality problems (such as man-made damage, improper installation), the company can provide maintenance services. Fees are charged according to the difficulty of maintenance and materials, and performance testing is carried out after maintenance.
Regular return visits: Customers are visited within 3 months after shipment to understand the product use, collect opinions and suggestions, and continuously improve products and services. At the same time, cable maintenance knowledge (such as avoiding extrusion, keeping away from high-temperature sources, etc.) is provided to help customers extend the service life.
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