120mm 150mm 185mm Copper Power Cable 0.6/1kv Freetox Halogen-Free Duplex Triplex Unipolar Cable N2xoh

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2025-07-31 06:32:58

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Detailed Introduction to 120mm², 150mm², 185mm² Copper Power Cables

I. Product Information

(I) Specifications and Parameters

The 120mm², 150mm², and 185mm² Copper Core Power Cables, model N2xoh, have a stable rated voltage of 0.6/1kV. This voltage level enables them to be widely used in medium and low-voltage power transmission scenarios, providing stable power support for various electrical equipment and lines.

In terms of conductor specifications, the conductor of the 120mm² cable is composed of multiple Copper Wires with a diameter of approximately 0.5mm twisted together, and the diameter of the twisted conductor is about 14mm; the conductor of the 150mm² cable is also twisted from multiple copper wires, with a diameter of about 16mm; the conductor diameter of the 185mm² cable is about 18mm. The difference in the cross-sectional area of conductors of different specifications directly determines their different current-carrying capacities. When laid in air, the long-term allowable current-carrying capacity of the 120mm² cable is approximately 310A, 150mm² is about 370A, and 185mm² is about 420A; when laid in soil, due to better heat dissipation conditions, the current-carrying capacity is relatively higher, 120mm² is about 340A, 150mm² is about 400A, and 185mm² is about 450A.

In terms of insulation layer thickness, the thickness of the Freetox halogen-free Insulation Material used in these three specifications of cables is strictly designed. The insulation layer thickness of the 120mm² cable is about 2.0mm, 150mm² is about 2.2mm, and 185mm² is about 2.4mm. Sufficient insulation thickness can effectively block current, ensure the insulation performance of the cable under rated voltage, and prevent leakage accidents.

The overall outer diameter of the cable also varies with specifications. The outer diameter of the 120mm² duplex cable is about 25mm, triplex is about 30mm, and unipolar is about 18mm; the outer diameter of the 150mm² duplex is about 28mm, triplex is about 33mm, and unipolar is about 20mm; the outer diameter of the 185mm² duplex is about 32mm, triplex is about 38mm, and unipolar is about 22mm. The difference in outer diameter of cables with different structural types is mainly due to the different number of cores; the more cores, the larger the outer diameter.

In addition, the operating temperature range of this series of cables is -40℃ to 90℃, and within this temperature range, all performances of the cable can remain stable. The maximum temperature during a short circuit does not exceed 250℃, and the duration does not exceed 5 seconds, which can withstand the high-temperature impact caused by short-circuit current in a short time, ensuring the safety of the power system. At the same time, the minimum bending radius of the cable is 12 times the outer diameter of the cable, which is convenient for laying and installation in narrow spaces and complex environments.

(II) Characteristic Applications

With different specifications and excellent performance, this series of cables has distinctive applications in many fields.

The 120mm² cable is suitable for medium-sized industrial equipment and building distribution trunks. In industrial production, some medium-sized machine tools, fans, water pumps and other equipment have moderate power, and the 120mm² cable can meet their power transmission needs, ensuring the normal operation of the equipment. In the construction field, as a distribution trunk line, it can transmit power from the main distribution box to the distribution boxes on each floor, providing power support for lighting, sockets and other electrical facilities in the entire building, especially suitable for medium-sized office buildings, shopping malls and other buildings.

The 150mm² cable can be adapted to larger power motors and main lines of commercial complexes. For some industrial motors with larger power, such as compressors and crushers, the current-carrying capacity of the 150mm² cable can meet their power needs during startup and operation, ensuring the stable operation of the motors. In commercial complexes, due to the large number of shops, catering, entertainment and other places, the electrical load is large. The 150mm² cable, as the main line, can efficiently distribute power to various areas, ensuring the normal operation of the commercial complex.

The 185mm² cable is suitable for heavy-load scenarios such as large transformer connections and factory main distribution. Large transformers are key equipment in the power system. The connection between them and the power grid requires cables that can carry large currents. The 185mm² cable can meet this demand and ensure stable power transmission. In large factories, the main distribution lines need to transmit power from the substation to various workshops and production lines. The large-capacity current-carrying capacity of the 185mm² cable can reduce losses during power transmission and improve power utilization efficiency.

Due to the use of Freetox halogen-free insulation materials, this series of cables is especially suitable for places with high requirements for environmental protection and safety. Hospitals, as special places, have strict requirements for fire safety and air quality. The use of Halogen-Free Cables can reduce the release of toxic gases in case of fire, buying more escape time for patients and medical staff. Schools are crowded with people, especially students with weak self-protection ability. Halogen-free cables can reduce the harm caused by fires. Subways, as important urban public transportation facilities, have relatively closed spaces. In case of fire, the consequences are unimaginable. The halogen-free characteristics of this series of cables can provide strong guarantee for the safe operation of subways.

Duplex and triplex cables are convenient for laying multi-phase circuits. In a three-phase four-wire or three-phase five-wire power system, triplex cables can correspond to three-phase live wires respectively, simplifying the wiring process and reducing line confusion. Duplex cables are suitable for single-phase circuits, such as live wires and neutral wires in residential electricity, which are convenient to use. Unipolar Cables have the characteristics of flexible adaptation and can be used in single-phase circuits or DC systems. They can play an important role in some special power transmission scenarios, such as DC lines of solar power generation systems. At the same time, this series of cables can meet various installation methods such as direct burial, pipe threading, and overhead. Direct burial is suitable for Underground Cable networks, pipe threading is suitable for line arrangement in buildings or walls, and overhead is suitable for power transmission in outdoor open areas.

(III) Material and Style

Conductor Material: The conductor of this series of cables is made of high-purity electrolytic copper with a purity of more than 99.95%. High-purity electrolytic copper has excellent conductivity and high conductivity, which can effectively reduce energy loss during current transmission and improve power transmission efficiency. At the same time, electrolytic copper has good ductility and Flexibility, which is convenient for stranding and other processing during cable production, and can also adapt to different bending angles during laying without breaking. In addition, electrolytic copper has good chemical stability and is not easy to be corroded, which can ensure that the cable maintains good conductivity during long-term use and prolong the service life of the cable.

Insulation Material: The insulation layer of the cable uses Freetox halogen-free material, which is an environmentally friendly insulation material. Compared with traditional halogen-containing insulation materials, Freetox halogen-free materials do not release toxic hydrogen halide gases such as hydrogen chloride when burned, which greatly reduces the harm to humans and the environment in case of fire. At the same time, it has good electrical insulation performance, which can effectively block current and ensure that the insulation resistance and voltage resistance performance of the cable meet the standard requirements. This material also has certain mechanical strength and aging resistance, and can resist external mechanical impact and environmental factors such as temperature changes and ultraviolet radiation, maintaining the stability and integrity of the insulation layer.

Style Design: This series of cables has various structural types such as duplex, triplex and unipolar. A duplex cable is composed of two Insulated Cores, wrapped with a sheath; a triplex cable contains three insulated cores, which are tightly wrapped by a sheath; a unipolar cable has only one insulated core. Different structural designs meet the needs of different circuits. The Multi-Core structure is convenient for transmitting multi-phase current at the same time, reducing the complexity of line laying.

The appearance color of the cable is usually black, which is not only dirt-resistant but also can absorb heat, reducing the impact of direct sunlight on the cable. On the surface of the cable, there are clearly printed information such as model, specification, rated voltage, execution standard, and manufacturer, which is convenient for users to identify and use. In addition, the sheath of the cable uses the same Freetox halogen-free material as the insulation layer, which not only further enhances the environmental performance of the cable but also provides additional protection for the internal core, improving the mechanical strength and corrosion resistance of the cable.

(IV) Production Process

The production process of this series of cables strictly follows relevant industry standards and quality control requirements to ensure product performance and quality.

Conductor Stranding: First, high-purity electrolytic copper rods are drawn into copper wires of the required diameter through a wire drawing machine. Then, according to different conductor cross-sectional areas, multiple copper wires are stranded in a certain way. During the stranding process, it is necessary to strictly control the stranding pitch and tension to ensure the roundness and tightness of the conductor, reduce the resistance of the conductor, and improve the conductivity. The Stranded Conductor needs to be surface-treated to remove oil and impurities on the surface to ensure good bonding with the insulation layer.

Insulation Extrusion: Freetox halogen-free insulation material is added to the extruder, heated and melted, and then evenly extruded and coated on the surface of the stranded conductor through a mold to form an insulation layer. During the extrusion process, parameters such as extrusion temperature, speed, and pressure must be precisely controlled. Excessively high temperature will cause the insulation material to decompose, affecting the insulation performance; excessively low temperature will cause defects such as bubbles and material shortage in the insulation layer. The stability of extrusion speed and pressure can ensure uniform thickness of the insulation layer, close bonding with the conductor, and no looseness.

Cabling (Multi-Core Cables): For duplex and triplex cables, it is necessary to cable multiple cores wrapped with insulation layers. During cabling, the cores are stranded together according to a certain stranding direction and pitch, and at the same time, some halogen-free filling materials are filled during the stranding process to make the structure of the cable more round and stable. The filling material is compatible with the insulation material and sheath material and will not have an adverse impact on the performance of the cable.

Sheath Extrusion: After cabling (for unipolar cables, after insulation layer extrusion), sheath extrusion is carried out. Freetox halogen-free sheath material is added to the extruder and extruded and coated on the cabled core or the unipolar insulated core to form a sheath layer. The sheath extrusion process is similar to insulation extrusion, and various parameters need to be strictly controlled to ensure uniform thickness and smooth surface of the sheath, close bonding with the internal structure, and effective protection of the internal core from external mechanical damage and environmental erosion.

Inspection and Testing: Strict inspection and testing are carried out in all links of the production process. The diameter, resistance, and stranding quality of the conductor need to be sampled and tested; the thickness, insulation resistance, voltage resistance performance, and mechanical performance of the insulation layer need to be comprehensively tested; the outer diameter, roundness, and stranding quality of the cabled cable need to be checked; the thickness, appearance, and weather resistance of the sheath layer also need to be inspected. The finished cable also needs to undergo overall performance tests, such as current-carrying capacity test, short-circuit test, and combustion performance test (to verify halogen-free characteristics), to ensure that all performance indicators meet relevant standards and design requirements. Only products that pass all inspections and tests can leave the factory for sale.

II. General Product Information

(I) Packaging

The packaging of this series of cables adopts a scientific and reasonable way to ensure that the cables are not damaged during transportation and storage and maintain good performance.

Packaging Materials: Cables are usually wound on steel cable reels. Steel cable reels have the characteristics of high strength and high load-bearing capacity, and can bear the weight of the cable and the external force during transportation and handling. The size of the cable reel is determined according to the specification and length of the cable. The length of each reel of 120mm², 150mm², and 185mm² cables is usually 100 meters, 200 meters, or 500 meters. On the cable reel, the cable is tightly wound and wrapped with plastic film, which can effectively prevent the cable from being affected by dust, moisture, and direct sunlight, keeping the cable clean and dry. For some small batches of short cables, wooden box packaging can also be used. Buffer materials such as foam are placed inside the wooden box to avoid damage caused by mutual collision during transportation.

Packaging Marks: Clear packaging marks are printed on the surface of the cable reel or wooden box. The marking content includes product name, model (N2xoh), specification (120mm², 150mm², 185mm²), length, rated voltage (0.6/1kV), structural type (duplex, triplex, unipolar), execution standard, manufacturer, production date, shelf life, etc., which is convenient for users to identify and check during receipt and acceptance. At the same time, some warning signs such as "Do Not Invert", "Handle with Care", "Moisture-proof and Sun-proof", "Keep Away from Fire" are also printed on the packaging to remind transportation and storage personnel to handle the cable correctly and avoid cable damage due to improper operation.

Packaging Requirements: During the packaging process, it is necessary to ensure that the cable is neatly wound on the cable reel without distortion or knotting. The two ends of the cable must be sealed to prevent moisture and impurities from entering the inside of the cable. For cables packaged in wooden boxes, the firmness of the wooden box must be ensured, and the buffer materials inside the box must be filled in place to ensure that the cable does not shake in the box. After packaging, the packaging must be inspected to ensure that the marks are clear and firm and the packaging is intact.

(II) Transportation

Transportation Methods: This series of cables can be transported by various means such as road transportation, railway transportation, and waterway transportation. Road transportation has the characteristics of high flexibility and can realize door-to-door service, suitable for short-distance transportation and small-batch transportation, and can quickly deliver cables to the destination. Railway transportation has large capacity and relatively low cost, suitable for medium and long-distance transportation and large-batch transportation, especially for cross-regional cargo transportation. Waterway transportation is suitable for long-distance and large-batch transportation, especially for coastal areas or cities with ports, with low transportation costs but relatively long transportation time. When choosing the transportation method, it is necessary to comprehensively consider factors such as the quantity of cables, transportation distance, time requirements, and cost budget, and select the most suitable transportation method.

Transportation Precautions: During transportation, it is necessary to ensure the stability of the cable reel or wooden box to avoid rolling and collision on the transport tool. The cable reel should be placed horizontally, and inversion or tilting is strictly prohibited to prevent the cable from falling off the cable reel or being damaged by extrusion. The compartments and cargo holds of transport vehicles or ships must be kept clean and dry, without sharp objects, corrosive substances, and flammable and explosive items, to avoid mechanical damage or chemical corrosion to the cable. During transportation, measures for moisture-proof, sun-proof, rain-proof, and high-temperature prevention must be taken, such as covering the cable tightly with a tarpaulin to avoid the cable being affected by bad weather. At the same time, traffic rules and transportation regulations must be observed, and transportation routes and time must be reasonably arranged to ensure transportation safety.

Transportation Responsibility: The transporter shall be responsible for the transportation process of the cable. Before transportation, the transporter shall inspect the packaging and quantity of the cable, and sign for receipt after confirmation. During transportation, the goods must be properly stored to ensure that the cable is delivered to the destination safely and intactly. If the cable is damaged, lost, or delayed due to the transporter's reasons, the transporter shall bear the corresponding compensation liability in accordance with the terms of the transportation contract. The shipper shall maintain close communication with the transporter, keep abreast of the transportation status of the goods, and negotiate solutions together in case of abnormal situations.

(III) Delivery

Delivery Process: After the user places an order, the manufacturer will review the order in a timely manner, and after confirming that the order information (such as specifications, quantity, delivery date, etc.) is correct, arrange production or retrieve the corresponding cable products from the inventory. Before delivery, the manufacturer will conduct a final quality inspection on the cable to ensure that the product meets relevant standards and user requirements. After passing the inspection, the cable is packaged according to the packaging method specified by the user, and relevant delivery documents are prepared, such as product certificate, inspection report, packing list, invoice, etc. Then, contact the transporter to determine the arrangement of transport vehicles or ships, and inform the transporter of the relevant information of the cable (such as model, specification, quantity, transportation method, etc.). When delivering the goods, the manufacturer will notify the user of the delivery information (such as logistics tracking number, estimated arrival time, etc.) to facilitate the user to track the transportation status of the goods.
Delivery Time: For regular specification cables in stock, the manufacturer can usually arrange delivery within 3-5 working days after receiving the user's order and confirming payment. For orders that need to be produced, the delivery time depends on the production progress, and production and delivery are usually completed within 7-15 working days. The manufacturer will make every effort to shorten the production and delivery cycle to ensure that users can receive the goods on time. In case of force majeure factors such as tight supply of raw materials and equipment failure that lead to delayed delivery, the manufacturer will communicate with the user in a timely manner, explain the reason and negotiate to adjust the delivery date.

3. Delivery Tracking: The manufacturer provides users with delivery tracking services. After the goods are shipped, the user will be provided with a logistics tracking number. Users can query the real-time transportation status of the cable through the official website of the logistics company or the logistics tracking platform. The manufacturer will also pay attention to the transportation progress of the goods. If there is any abnormal situation during transportation, such as delay, damage, etc., it will actively communicate with the transporter to solve the problem and feed back the processing results to the user in a timely manner.

(IV) Samples

Sample Provision: To enable users to intuitively understand the quality and performance of this series of cables before purchasing, the manufacturer can provide samples. Users can submit a sample application to the manufacturer, specifying the model, specification, structural type and other information of the required samples. After receiving the sample application, the manufacturer will review it. If the application is approved, the sample will be prepared and sent within 3-5 working days. The samples are of the same specification and performance as the mass-produced products, which can truly reflect the quality level of the products.

Sample Fees: The cost of samples is usually borne by the user, including the production cost, packaging cost and mailing cost of the samples. For long-term cooperative old customers or potential customers with large order intentions, the manufacturer can reduce or exempt part or all of the sample fees according to the actual situation, which can be negotiated with the manufacturer. The sample fee can be paid by bank transfer, online payment and other methods. The manufacturer will arrange the production and delivery of the sample only after the user pays the fee.

Sample Testing Guidance: After receiving the sample, if the user needs to test the sample, the manufacturer can provide relevant testing guidance, such as recommending professional testing institutions, providing testing standards and methods, etc. If the user has questions about the test results, the manufacturer's technical personnel will provide professional explanations and answers.

(V) After-sales Service

Quality Guarantee: The manufacturer provides a 2-year quality guarantee period for this series of cables from the date of leaving the factory. During the quality guarantee period, if the cable fails due to its own quality problems (such as conductor breakage, insulation layer breakdown and other non-human factors), the manufacturer will be responsible for free repair or replacement. If the failure is caused by improper use, incorrect installation, man-made damage and other factors, the manufacturer will not assume the free warranty responsibility, but can provide paid maintenance services.

Technical Support: The manufacturer has a professional technical team to provide users with comprehensive technical support. Users can contact the technical personnel through phone, email, online customer service and other channels when encountering technical problems in the process of cable installation, use and maintenance. Technical personnel will answer questions for users in a timely manner and provide professional solutions, such as providing installation drawings, explaining the precautions for use, etc. In addition, the manufacturer will regularly organize technical training courses to help users better understand and use the products.

Complaint Handling: If users have complaints about product quality or after-sales service, they can feedback to the manufacturer through the official complaint channel. The manufacturer will record the complaint content in detail and arrange special personnel to investigate and handle it. The handling result will be fed back to the user within 3 working days. If the complaint is verified, the manufacturer will take corresponding measures to make up for the user's loss, such as replacement, repair, compensation, etc., and summarize the experience and lessons to improve the product quality and service level.
Return and Exchange Policy: If the cable has quality problems that cannot be repaired within the quality guarantee period, or the product received by the user does not conform to the order requirements (such as wrong model, wrong specification, etc.), the user can apply for return or exchange. The manufacturer will verify the situation. After confirmation, it will handle the return or exchange procedures for the user in a timely manner, and bear the corresponding logistics costs. For non-quality problems, such as the user's own reasons for returning or exchanging goods, the user needs to bear the relevant costs and ensure that the product is in an unused and intact state.