Fr-PVC Insulated Grounding Cable 6-25mm² Green/Yellow Copper Wire 450/750V (IEC 60446)

Cross-sectional specifications: The cross-sectional specifications of this Fr-PVC insulated grounding cable range from 6mm² to 25mm², which can accurately meet the grounding needs of equipment with different powers. The 6mm² cable has a precisely calculated conductor diameter and can carry the leakage current generated by medium-power equipment. For example, small industrial motors, which generally have a power of several kilowatts, may have relatively moderate leakage current during operation, and the 6mm² cable can easily conduct it to the ground. Larger household air conditioners, which have higher power when cooling or heating, can also be stably handled by the 6mm² cable. The 10mm² cable has a larger conductor diameter and stronger conductivity, suitable for medium-sized industrial equipment such as some small and medium-sized processing machines. These equipment may generate larger leakage current due to mechanical wear during operation, and the 10mm² cable can ensure the smooth conduction of current. The 16mm² cable can meet the grounding needs of power distribution systems in commercial places. Large refrigeration equipment in shopping malls usually has a power of more than ten kilowatts, and its grounding system requires strong conductive support, which the 16mm² cable can well provide. The 25mm² cable has the largest cross-section in this series and excellent conductivity. Large industrial machinery, such as large stamping equipment and heavy cranes, can have a power of dozens of kilowatts. In case of failure, it may generate huge fault current, and the 25mm² cable can conduct these currents away in a short time to avoid the expansion of the accident. The grounding main line of the substation is responsible for the grounding task of the entire substation and needs to cope with various complex current conditions, so the 25mm² cable is an ideal choice.

Rated voltage: The rated voltage of 450/750V is an important parameter of this cable, which is consistent with the voltage standards of many low-voltage electrical systems. In the low-voltage power distribution systems of industrial, commercial and public facilities, the common voltage levels are mostly within this range, which enables the cable to be directly connected to the system without additional voltage conversion devices, simplifying the installation process. At the same time, this voltage level can withstand possible voltage fluctuations during system operation, ensuring that the grounding performance remains stable in case of sudden voltage rise, thus providing a guarantee for the safe operation of the electrical system.

Insulation thickness: Cables with different cross-sectional specifications have different thicknesses of Fr-PVC Insulation layers. The insulation layer thickness of the 6mm² cable is about 1.0mm, which can provide basic insulation protection for the grounding of medium-power equipment and prevent current leakage to other lines. The insulation layer thickness of the 10mm² and 16mm² cables is about 1.2mm to cope with larger currents and more complex environments, enhance the insulation effect, and avoid breakdown due to too thin insulation layer. The insulation layer thickness of the 25mm² cable is about 1.4mm. The thicker insulation layer can provide more reliable protection for large equipment and substation grounding main lines, resisting possible high-voltage impact and physical damage.

Conductor resistance: In a normal temperature environment, the conductor resistance of the 6mm² cable does not exceed 3.08Ω/km, that of the 10mm² cable does not exceed 1.83Ω/km, that of the 16mm² cable does not exceed 1.15Ω/km, and that of the 25mm² cable does not exceed 0.74Ω/km. A lower conductor resistance means less loss during current transmission, which can quickly conduct leakage current or fault current to the ground, improve grounding efficiency, reduce current retention caused by excessive resistance, and further ensure the safety of electrical equipment and personnel.

Length specifications: The cable is available in a variety of lengths, commonly 100 meters, 200 meters, 500 meters, etc. The 100-meter length is suitable for the grounding installation of small equipment or the transformation of local grounding systems. The 200-meter and 500-meter lengths are suitable for large-scale grounding projects such as large industrial sites and commercial complexes. Users can choose according to actual construction needs to avoid adding joints due to insufficient length or causing material waste due to excessive length.

Industrial field

Commercial places

Public facilities

Substations

Conductor Material: The conductor is made of high-purity copper with a purity of more than 99.9%. High-purity copper has excellent conductivity, which can conduct current quickly and efficiently, ensuring the timeliness and effectiveness of grounding. In the process of current transmission, its loss is extremely low, which can minimize energy waste. At the same time, high-purity copper has good ductility. During the processing and installation of the cable, it can be easily bent and cut, adapting to various complex wiring environments, whether it is buried laying or pipe installation, it can be operated conveniently. In addition, high-purity copper has strong corrosion resistance. In humid, dusty, corrosive gas industrial environments or underground soil, it is not easy to be corroded and oxidized, and can maintain stable conductivity and structural integrity for a long time, extending the service life of the cable.

Insulation layer material: The outer insulation layer is made of Fr-PVC (flame-retardant polyvinyl chloride) material, which is a major advantage of this cable. Fr-PVC not only has excellent electrical insulation performance, but also has high insulation resistance, which can effectively block current leakage, prevent short circuits or interference between the grounding system and other circuits, and ensure the independence and safety of the grounding system. More importantly, it has excellent flame-retardant characteristics. When encountering an open flame, it can inhibit the spread of the flame, delay the burning speed of the cable, and reduce the damage range of fire accidents. At the same time, Fr-PVC material is wear-resistant and anti-aging, which can resist the influence of external friction, extrusion and other physical effects, as well as temperature changes, ultraviolet radiation and other environmental factors. It is not easy to crack or harden after long-term use, ensuring that the protective effect of the insulation layer is long-term and effective.

Wire style: The wire body adopts a green-yellow two-color design, which is an internationally general grounding identifier with high recognition. In a complex Electrical Wiring environment, there are various lines such as phase lines and neutral lines. The green-yellow two-color wire body enables installation and maintenance personnel to quickly identify the grounding cable, avoid misconnection, and ensure the correct connection of the grounding system. The wire body has a compact structure, and its diameter matches the cross-sectional specification, which is convenient for laying in narrow spaces such as cable trenches and wall conduits. Its surface is smooth and burr-free, which will not scratch other lines or equipment during installation, and is also convenient for construction personnel to operate. In addition, the wire body has a certain Flexibility, which can adapt to different wiring paths and meet various installation needs.

Copper material screening and purification: At the beginning of production, copper materials are strictly screened, and high-quality copper raw materials with high purity and few impurities are selected. The purity of copper materials is detected by advanced testing equipment, and only copper materials with a purity of more than 99.9% can enter the next production step. For the selected copper materials, electrolytic refining is used for purification to remove impurities such as iron and zinc, further improving the purity of copper. During the electrolysis process, parameters such as current density and electrolyte concentration are accurately controlled to ensure the purification effect and lay a foundation for the production of high-quality conductors.

Copper Conductor drawing and stranding: The purified copper material is drawn, and the copper material is drawn into copper wires of different diameters through a wire drawing machine to meet the needs of cables with different cross-sectional specifications. During the drawing process, a continuous drawing process is adopted, and the drawing speed and tension are strictly controlled to ensure that the diameter of the copper wire is uniform and the surface is smooth and undamaged. For cables with larger cross-sections, such as 16mm² and 25mm² cables, multiple copper wires need to be stranded. During stranding, it is carried out according to a certain stranding angle and pitch to ensure that the copper wires are arranged neatly and the tension is uniform, so as to improve the conductivity and mechanical strength of the conductor and enhance the tensile capacity of the cable.

Fr-PVC insulation layer extrusion: After the copper conductor is made, the extrusion process of the Fr-PVC insulation layer is carried out. First, Fr-PVC raw materials are mixed with additives such as flame retardants and stabilizers in a certain proportion, and after stirring and plasticizing, a homogeneous mixture is obtained. Then, the mixture is added into an extruder and heated to a molten state. Through the extrusion die, the molten Fr-PVC material is evenly coated onto the outer layer of the copper conductor, forming an insulation layer. During the extrusion process, the temperature, pressure, and speed of the extruder are precisely controlled to ensure uniform thickness, smooth surface finish, and tight adhesion to the copper conductor, without defects such as bubbles, pinholes, or cracks. The quality of the insulation layer directly affects the cable's insulation performance and flame retardant effect; therefore, strict online inspection is required.

Two-color identification printing: To form the green-yellow two-color grounding identifier, a special two-color co-extrusion process is adopted. While extruding the insulation layer, green and yellow Fr-PVC materials are extruded simultaneously through different runners to form green-yellow alternating stripes. During the printing process, the proportion and extrusion speed of the two color materials are strictly controlled to ensure that the colors are bright, the boundaries are clear, and the stripe spacing is uniform, in line with the specifications of international grounding identifiers. The two-color identifier not only plays an identification role, but also its material is consistent with the insulation layer, which can also ensure the overall insulation and flame-retardant performance.

Finished product inspection: The produced cables need to undergo a comprehensive finished product inspection. The inspection items include cross-sectional specifications, conductor resistance, insulation resistance, voltage resistance performance, flame-retardant performance, mechanical strength, etc. Professional testing equipment, such as resistance testers, voltage resistance testing machines, flame-retardant performance testers, etc., are used to sample test each batch of products. Only cables that meet the IEC 60446 standard and related quality requirements in all inspection items can leave the factory for sale to ensure the quality and safety of the products.

Packaging materials: The cables are packaged in reels, and the reel material is selected according to the cross-sectional specification and length of the cable. For cables with small cross-sections (such as 6mm², 10mm²) and short lengths (100 meters), high-strength corrugated cardboard reels are used. This kind of reel is light in weight, low in cost, and easy to recycle, which can effectively reduce packaging costs. The corrugated cardboard is moisture-proof treated to prevent the cable from getting damp during storage and transportation. For cables with large cross-sections (such as 16mm², 25mm²) or long lengths (200 meters, 500 meters), wooden reels are used. The wooden reels have high strength and good stability, can bear large weight and pressure, and protect the cables from extrusion deformation during transportation. The wood has undergone drying and anti-corrosion treatment to extend the service life of the reels.

Packaging methods: Cables of different specifications adopt corresponding packaging methods. Small cross-section and short-length cables are neatly wound on cardboard reels, and each circle is closely arranged to avoid looseness. Then, the entire reel is wrapped tightly with plastic film, which has good moisture-proof and dust-proof performance and can protect the cable from external pollution. Finally, a plastic bag printed with product information is put on for easy identification. Large cross-section and long-length cables are wound on wooden reels, and wooden baffles are installed at both ends of the reels. The diameter of the baffles is larger than that of the reels, which can prevent the cables from slipping off from both ends. The cables and reels are fixed firmly with high-strength strapping to ensure that they will not loosen during transportation. A detailed product label is attached to the side of the reel, indicating the model, specification, length, rated voltage, production date, manufacturer and other information.

Packaging marks: The marks on the packaging are clear and standardized. In addition to the basic product information, there are also warning signs and precautions. The warning signs include "Handle with Care", "Moisture-proof", "Fire-proof", "Keep Away from Heat Sources", etc., to remind transportation and storage personnel to pay attention to relevant matters. The precautions clearly specify the storage environment requirements for the cables, such as being stored in a dry, ventilated and cool warehouse, avoiding contact with corrosive substances, and keeping away from fire sources. At the same time, the packaging is printed with the logo conforming to the IEC 60446 standard and the contact information of the manufacturer, which is convenient for users to consult and after-sales service.

Transportation methods: According to the transportation distance, transportation volume and customer needs, appropriate transportation methods are selected. For short-distance transportation (such as in the city and surrounding areas) with a small transportation volume, road transportation is adopted. The transportation vehicles are small trucks or van-type trucks, which have the advantages of high flexibility and door-to-door delivery, and can quickly deliver the cables to the customer's designated location. For medium and long-distance transportation or large transportation volume, railway transportation is adopted. Railway transportation has large transportation capacity, low cost and good stability, which is suitable for the transportation of large quantities of cables and can ensure the safety of cables during transportation. For export products, waterway transportation can be selected. Waterway transportation has low cost and can transport a large number of goods, but the transportation time is relatively long, so the transportation cycle needs to be planned in advance.

Transportation precautions: During transportation, a series of measures need to be taken to ensure the safety of the cables. First of all, avoid severe impact, collision and extrusion of the cables. The transport vehicle should drive smoothly, avoiding sudden braking, sharp turns and bumpy sections. When loading the cables, the loading position should be arranged reasonably, avoiding stacking heavy objects on the cables. Large cross-section cables should be placed separately to prevent being squeezed by other goods. During loading and unloading, professional equipment such as forklifts should be used, and manual rough loading and unloading is strictly prohibited to avoid damage to the cable reels or wear of the cable sheaths. Secondly, take moisture-proof, sun-proof, high-temperature and low-temperature prevention measures. When transporting in rainy days, the cables must be tightly covered with rain-proof cloth to prevent rainwater from seeping into the packaging. When transporting in high-temperature weather, avoid the cables being exposed to the sun for a long time. They can be placed inside the carriage or in a shaded place to prevent the Fr-PVC insulation layer from aging due to high temperature. When transporting in low-temperature weather, pay attention to keeping warm to prevent the cables from being frozen and causing embrittlement of the insulation layer. In addition, during transportation, the cables should be kept away from fire sources, corrosive substances and sharp objects to avoid fire, corrosion or scratches.

Transportation tracking: A perfect transportation tracking system is established to monitor the transportation process of the cables in real time. Cooperating with professional logistics companies and using logistics information platforms, customers can query the transportation location, transportation status and estimated arrival time of the cables through the waybill number. During transportation, if there are abnormal situations such as traffic jams and vehicle failures that cause transportation delays, the logistics company will communicate with the customer in a timely manner, explain the situation and adjust the transportation plan. In case of cable damage, loss and other problems, they will be handled in a timely manner in accordance with relevant regulations to ensure that the customer's rights and interests are not damaged.

Delivery process: After the customer places an order, the sales department will review the order in a timely manner. After confirming that the product model, specification, quantity, delivery address, contact information and other information are correct, the order information will be transmitted to the warehouse. After receiving the order, the warehouse will prepare the goods according to the order requirements. The warehouse management personnel will check the cables to see if the model, specification and quantity of the product are consistent with the order and if the packaging is intact. After the goods are prepared, the logistics department is notified to arrange delivery. The logistics department contacts the cooperative logistics company, goes through the consignment procedures, generates a waybill number, and feeds back the waybill number to the sales department. The sales department will promptly inform the customer of the waybill number and logistics information via SMS, email, etc., to facilitate the customer to query the transportation status of the goods.

Delivery time: For cables in stock, delivery will be arranged within 1-3 working days after the order is confirmed. For customized cables that need to be produced, the delivery time is determined according to the production cycle, and production and delivery are generally completed within 7-15 working days. Before delivery, the sales staff will confirm the delivery time and transportation method with the customer to ensure that the customer is prepared to receive the goods. In case of special circumstances such as raw material shortage and equipment failure that cause delivery delays, the customer will be notified in advance, the reason will be explained, and a new delivery time will be negotiated to protect the customer's right to know.

Delivery confirmation: After the cable is shipped, the logistics company will send an arrival notice to the customer, informing the estimated arrival time and precautions for receiving the goods. After receiving the cable, the customer must inspect the goods on the spot to check whether the packaging is intact, whether the model and specification of the cable are consistent with the order, and whether the quantity is accurate. If any problem is found, contact the sales department in a timely manner and take photos as evidence. The sales department will handle it in a timely manner according to the situation, such as arranging for return and exchange or reissuing the goods. After the inspection is correct, the customer signs on the receipt to complete the delivery process.

Sample provision: To facilitate customers to understand the product performance and quality, the manufacturer can provide samples. Customers can apply for samples from the sales department by phone, email, online consultation, etc., indicating the model, specification, quantity and other information of the required samples. After receiving the application, the sales department will review it within 1-2 working days. If the review is passed, the sample delivery will be arranged. The length of the sample is generally 1-2 meters, which can meet the customer's testing needs for the appearance, material, insulation layer thickness of the cable.

Sample cost: The cost of the sample is usually borne by the customer, including the cost of the sample itself and the mailing cost. For large customers with clear purchase intentions or long-term cooperative customers, the manufacturer can appropriately reduce or exempt the sample cost, and the specific situation can be negotiated with the manufacturer. After receiving the sample, the customer should test and evaluate it in a timely manner. If the sample is found to be inconsistent with the requirements, they should communicate with the manufacturer in a timely manner.

Sample feedback: Customers can feedback the test results and use experience of the samples to the manufacturer. The manufacturer will pay attention to the customer's feedback, and if there are opinions and suggestions, they will be seriously considered and improved. If the customer is satisfied with the sample, they can place an order for bulk purchase. The manufacturer will give certain preferential policies according to the purchase quantity.

Quality guarantee: The manufacturer provides a quality guarantee period for this Fr-PVC insulated grounding cable, usually 1-3 years. During the quality guarantee period, if the cable has quality problems due to manufacturing defects (such as conductor breakage, insulation layer aging, unqualified flame-retardant performance, etc.), the manufacturer will provide free repair or replacement services. Customers need to provide the purchase invoice and relevant evidence when claiming for compensation. The manufacturer will send professional and technical personnel to verify the problem, and handle it in a timely manner after confirmation.

Technical support: The manufacturer has a professional technical team to provide customers with comprehensive technical support. During the selection, installation, use and maintenance of the cable, if customers have any technical problems, they can consult the manufacturer through phone, email, online consultation, etc. Technical personnel will provide detailed answers and guidance, and can also send personnel to the site for technical guidance if necessary, helping customers solve problems encountered in the process of using the cable.

Return and exchange service: If the customer receives the cable with problems such as wrong model, wrong specification, damaged packaging, etc., and the product is unused, the manufacturer provides a 7-day return and exchange service. The customer needs to apply for return and exchange within 7 days after receiving the goods and provide relevant photos and other evidence. After the manufacturer confirms, it will arrange for return and exchange, and the relevant transportation costs will be borne by the manufacturer.

Regular return visits: The manufacturer will conduct regular return visits to customers who have purchased the products to understand the use of the cables and the customer's needs. Through return visits, the manufacturer can timely understand the problems existing in the use of the products, collect customer opinions and suggestions, continuously improve product quality and service level, and enhance customer satisfaction.