Rated Temperature: The core feature of this wire is its rated temperature of 90°C, which allows it to operate continuously and stably in high-temperature settings. This is a significant advancement over Standard Wires, which typically have lower temperature tolerances, making it ideal for environments where temperatures regularly reach elevated levels. Whether in industrial workshops with heat-generating machinery, commercial kitchens with constant cooking activities, or around heating systems, this wire maintains its structural integrity and electrical properties.
Wire Gauge and Cross-Sectional Area: It adheres to the 8 AWG (American Wire Gauge) standard, corresponding to a cross-sectional area of approximately 8.37mm². This substantial cross-sectional area is designed to handle high current loads, a critical requirement for powering large electrical equipment. The larger diameter ensures that even when carrying high currents, the wire does not overheat beyond safe limits, which is especially important in high-temperature environments where heat dissipation is challenging.
Current-Carrying Capacity: At its rated temperature of 90°C, the wire boasts a continuous current-carrying capacity of around 40A. This high capacity makes it suitable for a wide range of high-power devices, including industrial ovens that require significant energy to reach and maintain high cooking temperatures, large air conditioning units that operate continuously in commercial spaces, and heavy-duty machinery in manufacturing plants. The ability to carry such currents without degradation ensures that these devices function optimally without the risk of wire failure.
Conductor Structure and Resistance: The conductor is constructed by stranding multiple fine copper wires together. This stranded design offers several advantages. Firstly, it enhances the Flexibility of the wire, allowing it to be easily bent and maneuvered through tight spaces, around corners, and within complex machinery layouts. This flexibility is particularly valuable in industrial settings where equipment configurations are often intricate. Secondly, the stranded structure improves the wire's resistance to vibration and fatigue. In environments with constant mechanical movement or vibration, such as near industrial pumps or manufacturing lines, the Stranded Conductor is less likely to break compared to a solid conductor. At 20°C, the maximum resistance of the conductor is no more than 2.06Ω/km. This low resistance ensures efficient current transmission, minimizing energy loss as heat. In high-temperature environments, reducing energy loss is crucial not only for energy efficiency but also for preventing additional heat buildup that could compromise the wire's performance.
Insulation Layer Parameters: The insulation layer is crafted from heat-resistant PVC material with a thickness ranging from 1.2mm to 1.5mm. This thickness is carefully chosen to provide exceptional electrical insulation while maintaining the wire's ability to withstand high temperatures. The heat-resistant PVC is formulated to resist softening, melting, or cracking even when exposed to 90°C for extended periods. At room temperature, the insulation layer exhibits an insulation resistance greater than 100MΩ・km, ensuring effective isolation of the conductor from external elements and preventing 漏电 (leakage) and short circuits. This high insulation resistance is maintained even at elevated temperatures, a key characteristic that sets it apart from standard PVC-Insulated Wires.
Rated Voltage: The wire is rated for 600V/1kv, making it versatile enough to be used in both medium and low-voltage electrical systems. This dual voltage rating allows it to be deployed in a variety of applications, from industrial machinery operating on higher voltages to commercial and residential equipment using standard low voltages. It ensures compatibility with different electrical setups without the need for multiple wire types.
Outer Diameter: With an outer diameter of approximately 6.5-7.0mm, the wire is designed to fit into conventional high-temperature wire tubes and installation spaces. This standardized size simplifies the installation process, as it can be easily routed through existing conduit systems and fits into common electrical enclosures. The manageable diameter also makes it easier to handle during installation, even in tight or hard-to-reach areas.
Industrial Sector:
High-Temperature Equipment Power Supply: Industrial kilns, which are used for firing ceramics, melting metals, or heat-treating materials, operate at extremely high temperatures. The wiring used to power these kilns must withstand not only the ambient heat from the kiln itself but also the heat generated by the high currents required to operate them. This wire is ideally suited for this purpose, as its heat-resistant insulation and high current-carrying capacity ensure a stable power supply. Similarly, drying equipment in manufacturing facilities, such as those used in the paper, textile, or food processing industries, creates hot environments. The wire can reliably connect these drying systems to the power source, ensuring consistent operation. Heat treatment production lines, where metals are heated and cooled to alter their properties, also benefit from this wire's ability to withstand the high temperatures present in these processes.
Machinery and Plant Wiring: Within industrial plants, various machinery such as large motors, compressors, and hydraulic systems generate significant amounts of heat during operation. The wiring that connects these machines to the electrical grid must be able to withstand the elevated temperatures in their vicinity. This wire's heat resistance and flexibility make it an excellent choice for Internal Wiring within these machines and for connecting them to control panels and power distribution systems. Its ability to handle high currents ensures that these power-hungry machines receive a steady supply of electricity.
Commercial Kitchens:
Cooking Equipment Connections: Commercial kitchens are bustling environments with a multitude of heat-generating appliances, including ovens, grills, fryers, steamers, and dishwashers. These appliances operate at high temperatures, and the wiring in their vicinity is constantly exposed to heat, moisture, and grease. The 90°C Thw90 wire is designed to resist the effects of these harsh conditions. It can be used to connect ovens that reach high baking temperatures, steamers that produce hot, moist air, and dishwashers with high-temperature wash cycles. The heat-resistant PVC Insulation prevents the wire from degrading due to the constant heat exposure, while its resistance to moisture and grease ensures long-term reliability.
Kitchen Lighting and Ventilation: In addition to powering cooking equipment, the wire is suitable for wiring kitchen lighting fixtures and ventilation systems. Ventilation hoods above stoves draw in hot air and grease, creating a challenging environment for wiring. The wire's heat resistance ensures that it can function properly in these conditions, while its insulation protects against any potential electrical hazards.
Heating Systems:
Boiler and Furnace Wiring: Boilers and furnaces are central to heating systems in residential, commercial, and industrial buildings. These devices operate by generating heat, and the wiring that controls their operation and connects them to the power supply is exposed to high temperatures. The 90°C Thw90 wire can be used for internal wiring within boilers and furnaces, as well as for connecting them to thermostats, pumps, and other components of the heating system. Its ability to withstand the heat generated by these devices ensures that the heating system operates safely and efficiently.
Radiator and Underfloor Heating Connections: Radiators and underfloor heating systems also require reliable wiring to control their operation. In underfloor heating systems, the wiring is often embedded in concrete or under floor coverings, where temperatures can be elevated. This wire's heat resistance makes it suitable for these applications, ensuring that the wiring does not fail due to the heat from the heating elements.
Automotive Industry:
Engine Compartment Wiring: The engine compartment of a vehicle is a harsh environment characterized by high temperatures, vibration, and exposure to oils and chemicals. The 90°C Thw90 wire is well-suited for use in this area, as it can withstand the heat generated by the engine and exhaust system. It can be used for wiring components such as the alternator, starter motor, ignition system, and sensors within the engine compartment. The stranded conductor design provides excellent resistance to vibration, ensuring that the wire remains intact even as the engine vibrates during operation.
Vehicle Heating Systems: Some vehicles, such as trucks and buses, have heating systems for the cabin or for specialized equipment. The wiring for these heating systems can also benefit from the heat resistance of this wire, ensuring reliable operation even when the heating elements are in use.
Power Generation Facilities:
Auxiliary Equipment Wiring: Power generation facilities, such as thermal power plants, have a variety of auxiliary equipment that operates in high-temperature environments. This includes pumps, fans, and control systems associated with boilers, turbines, and other power-generating equipment. The 90°C Thw90 wire is suitable for wiring these auxiliary systems, as it can withstand the heat generated by the primary power generation processes. Its high current-carrying capacity ensures that it can handle the electrical loads of these equipment, while its heat resistance ensures long-term reliability.
Control Panel Connections: Control panels in power generation facilities monitor and control the operation of various equipment. The wiring within these panels must be able to withstand the heat generated by electrical components and the ambient temperature in the facility. This wire provides a reliable solution for connecting meters, switches, relays, and other components within the control panels.
Conductor Material: The conductor is made from high-purity electrolytic copper with a purity of over 99.9%. This high purity is essential for ensuring excellent electrical conductivity, which allows for efficient current transmission with minimal energy loss. In high-temperature applications, where energy efficiency is crucial, this low resistance is a significant advantage. Copper also has excellent thermal conductivity, which helps in dissipating any heat generated within the conductor, preventing excessive temperature buildup. Additionally, copper exhibits superior ductility and toughness, which are vital for the stranded conductor design. The fine copper wires can be easily stranded together without breaking, and the resulting conductor can withstand repeated bending, vibration, and thermal expansion and contraction without compromising its structural integrity. This durability ensures that the wire has a long service life even in demanding environments.
Insulation Layer Material: The insulation layer is composed of heat-resistant PVC (polyvinyl chloride) material, which is specially formulated to withstand high temperatures. Unlike standard PVC, which may soften or melt at elevated temperatures, this heat-resistant variant contains additives that enhance its thermal stability. These additives allow the insulation to maintain its mechanical properties, such as hardness and flexibility, and its electrical insulation capabilities even when exposed to 90°C for extended periods. The heat-resistant PVC also offers good resistance to chemicals, including oils, greases, and some solvents, which is important in industrial and automotive applications where exposure to such substances is common. Furthermore, it has inherent flame-retardant properties, meaning it burns slowly and self-extinguishes when the flame source is removed, reducing the risk of fire spread in case of an accident.
Style Design:
Color Options: The insulation layer is available in a range of colors, including black, red, blue, and green. These colors serve as important identifiers, allowing electricians and installers to easily distinguish between different circuits, phases, or functions. For example, black may be used for neutral wires, red for live wires in certain circuits, blue for specific control circuits, and green or green-yellow for Ground Wires. This color-coding system helps to ensure correct installation, reduces the risk of wiring errors, and simplifies maintenance and troubleshooting.
Surface Finish: The surface of the insulation layer is smooth and even, which offers several benefits. A smooth surface reduces friction during installation, making it easier to pull the wire through conduit systems and tight spaces. It also minimizes the accumulation of dust, dirt, and moisture, which can be detrimental to the wire's performance over time, especially in high-temperature environments where contaminants can accelerate degradation.
Conductor Stranding Pattern: The multiple fine copper wires are stranded in a specific pattern, typically a concentric or bunch stranding design. This pattern ensures that the conductor is flexible and evenly distributed, allowing for uniform current flow and heat dissipation. The stranding also helps to reduce electromagnetic interference (EMI), which can be a concern in industrial environments with sensitive electronic equipment.
Markings and Labels: The insulation layer is imprinted with clear and durable markings that provide essential information about the wire. This includes the wire gauge (8 AWG), rated temperature (90°C), rated voltage (600V/1kv), type (Thw90), manufacturer's name or logo, and compliance with relevant standards (such as UL or IEC standards). These markings are resistant to fading and abrasion, ensuring that the information remains legible throughout the wire's service life, which is important for identification, inspection, and compliance purposes.
Copper Rod Selection and Inspection: The process begins with the selection of high-purity electrolytic copper rods, which are inspected for purity, uniformity, and freedom from defects. Only rods that meet strict quality criteria are used, as the quality of the raw material directly impacts the performance of the final wire. The copper rods typically have a purity of 99.9% or higher to ensure excellent conductivity.
Copper Wire Drawing: The copper rods are then drawn through a series of dies to reduce their diameter and form fine copper wires. This drawing process is carried out in multiple stages, with each die reducing the wire diameter incrementally. The drawing speed, temperature, and lubrication are carefully controlled to prevent damage to the copper and ensure consistent wire diameter and mechanical properties. The dies are made from hard materials such as diamond or tungsten carbide to withstand the high pressures involved. After drawing, the copper wires undergo an annealing process, where they are heated to a specific temperature (typically between 300°C and 500°C) and then slowly cooled. Annealing relieves internal stresses in the wire, improves its ductility and flexibility, and ensures that the conductivity is maintained at a high level.
Conductor Stranding: The annealed copper wires are then stranded together to form the conductor. The number of wires and the stranding pattern are determined based on the desired conductor size (8 AWG in this case) and performance requirements. The stranding process is performed using specialized stranding machines, which twist the wires together at a precise pitch. The pitch is the distance between consecutive twists and is chosen to ensure that the conductor is flexible, has good mechanical strength, and allows for uniform current distribution. During stranding, care is taken to ensure that all wires are evenly tensioned to prevent uneven stress distribution, which could lead to premature failure. The stranded conductor is then inspected for uniformity, diameter, and absence of defects such as broken wires or loose strands.
Heat-Resistant PVC Compounding: The Insulation Material, heat-resistant PVC, is compounded in a separate process. This involves mixing PVC resin with heat-resistant additives, plasticizers, stabilizers, flame retardants, and colorants. The additives are carefully selected and proportioned to achieve the desired thermal stability, flexibility, insulation properties, and color. The mixture is heated and mixed in a compounding extruder to form a homogeneous melt, which is then cooled and pelletized. These PVC pellets are then inspected to ensure they meet the required specifications for melt flow rate, thermal stability, and other properties.
Insulation Extrusion: The stranded conductor is fed into an extrusion machine, where the heat-resistant PVC pellets are melted and extruded onto the conductor to form the insulation layer. The extrusion process is highly controlled, with precise regulation of temperature, pressure, and extrusion speed. The temperature of the extruder barrel and die is set to ensure that the PVC melt has the correct viscosity for uniform coating. The die is designed to shape the insulation layer to the desired thickness (1.2-1.5mm) and ensure that it is concentric with the conductor, which is important for maintaining consistent insulation properties and mechanical strength. After extrusion, the wire passes through a cooling water bath to solidify the PVC insulation. The cooling rate is controlled to prevent thermal stress in the insulation layer.
High-Temperature Curing and Testing: Following insulation extrusion, the wire undergoes a high-temperature curing process. This involves exposing the wire to a temperature of 90°C or higher for a specified period to accelerate the curing of the PVC insulation and ensure that it achieves its full thermal stability. This step is crucial for verifying that the insulation can withstand the rated temperature during long-term use. After curing, the wire is subjected to a series of tests, including insulation resistance testing, dielectric strength testing, and dimensional checks. The insulation resistance test measures the resistance of the insulation layer to the flow of leakage current, ensuring it meets the required standard (greater than 100MΩ·km). The dielectric strength test involves applying a high voltage to the wire to check for insulation breakdown, ensuring that it can withstand the rated voltage (600V/1kv) without failure.
Spark Testing: The wire is then passed through a spark tester, which applies a high-voltage electric field around the wire. If there are any defects in the insulation layer, such as pinholes or cracks, the high voltage will cause a spark to jump through the defect, triggering an alarm. This allows for the detection and removal of any wires with insulation flaws, ensuring that only defect-free wires proceed to the next stage.
Printing and Marking: Using specialized in-line printing equipment, the required markings (such as wire gauge, rated temperature, voltage, type, and manufacturer information) are printed onto the insulation layer. The ink used is resistant to fading, abrasion, and high temperatures to ensure that the markings remain legible throughout the wire's service life.
Spooling and Final Inspection: The finished wire is spooled onto reels or coils of specified lengths, typically 100m,
Packaging Materials:
Reels/Spools: For longer lengths (500m, 1000m), the wire is typically wound onto sturdy reels or spools. These reels are made from high-quality materials such as durable plastic (polypropylene) or wood. Plastic reels are preferred for their resistance to moisture, corrosion, and impact, making them suitable for harsh environments. They are designed with flanges on both ends to prevent the wire from slipping off during handling and transportation. The reels are also reinforced with ribs to enhance their structural strength, allowing them to withstand the weight of the wire and the stresses of stacking.
Cartons: For shorter lengths (e.g., 10m, 20m, 50m, 100m), the wire is packaged in heavy-duty cartons. These cartons are made from multi-layer corrugated cardboard, which provides excellent compressive strength and shock resistance. The inner surface of the cartons may be lined with moisture-resistant paper or plastic film to protect the wire from moisture and dust. For very short lengths, the wire may be coiled and secured with a plastic tie or paper band before being placed in the carton.
Protective Wrapping: Regardless of the length, the wire is wrapped with a layer of transparent plastic film before being placed on reels or in cartons. This film serves as a barrier against dust, moisture, and contaminants, keeping the wire clean and dry. It also allows for easy visual inspection of the wire's color, surface condition, and markings without opening the package.
Labels and Documentation: Each package is affixed with a clearly printed label containing essential information, including the product name (90°C Thw90 8 AWG stranded copper wire), rated voltage (600V/1kv), length, color, batch number, production date, manufacturer's name and contact information, and compliance with relevant standards (e.g., UL, IEC). Additionally, handling instructions such as "Keep Dry," "Handle with Care," and "Maximum Stacking Height" are printed on the labels to guide proper storage and transportation. For bulk shipments, a packing list detailing the contents of each package is included.
Packaging Process:
Reel Packaging: After spooling, the reel with the wound wire is wrapped tightly with plastic film to secure the wire and protect it from external elements. The label is then affixed to the side flange of the reel. Multiple reels are often stacked on wooden or plastic pallets, with each layer separated by a plywood sheet or a protective pad to prevent damage from friction. The entire pallet is then wrapped with stretch film to stabilize the load and provide additional moisture protection.
Carton Packaging: For carton-packaged wire, the coiled or cut lengths are placed inside the carton, with voids filled with foam padding or bubble wrap to prevent movement during transportation. This minimizes the risk of the wire getting tangled or the insulation layer being damaged. The carton is then sealed with strong adhesive tape, and the label is applied to the outer surface. Cartons of similar sizes are stacked on pallets, and the pallet is wrapped with stretch film to ensure stability.
Transportation Modes:
Road Transportation: This is the most common mode for short to medium distances. The wire is transported using trucks, with the choice of vehicle depending on the quantity and packaging. For palletized reels, flatbed trucks or enclosed trucks with loading ramps are used. Enclosed trucks are preferred to protect the wire from weather elements such as rain, snow, and direct sunlight. The truck beds are cleaned and inspected to ensure there are no sharp objects that could puncture the packaging or damage the wire. For smaller shipments in cartons, light commercial vehicles may be used.
Rail Transportation: Suitable for long-distance shipments, especially for large quantities. The wire, packaged in pallets or reels, is loaded into railcars. Enclosed railcars are used to shield the wire from environmental factors. Rail transportation offers the advantages of high capacity, cost-effectiveness, and reduced risk of accidents compared to road transportation, making it ideal for bulk deliveries to distant locations.
Sea Transportation: Used for international shipments or long-distance transportation across continents. The wire is packed in moisture-proof containers, either as palletized loads or individual reels. The containers are inspected for leaks and contamination before loading. Desiccants may be placed inside the containers to absorb any moisture and prevent condensation, which could damage the insulation layer. Sea transportation is economical for large volumes but has a longer transit time, so proper scheduling is essential to meet customer delivery deadlines.
Air Transportation: Reserved for urgent shipments where time is critical. Due to the higher cost, this mode is typically used for small quantities, such as samples or emergency replacements. The wire is packaged in sturdy cartons to withstand the rigors of air travel, and compliance with airline regulations regarding packaging and weight restrictions is strictly followed.
Transportation Precautions:
Loading and Unloading: Proper handling equipment, such as forklifts with adjustable forks or cranes with soft slings, is used to load and unload the wire. For reels, the forklift forks are inserted into the reel's core to avoid damaging the flanges. Manual handling is minimized to prevent strain on the wire or its packaging. During loading, the wire packages are secured to prevent shifting, using straps or dunnage to fill gaps.
Environmental Protection: The wire must be protected from extreme temperatures, moisture, and direct sunlight during transportation. In hot weather, enclosed trucks or containers should be ventilated to prevent heat buildup, which could affect the insulation material. In rainy or snowy conditions, the packaging must be covered with waterproof tarps. Avoiding exposure to chemicals or corrosive substances is crucial, as they can degrade the insulation layer.
Compatibility: The wire should not be transported with hazardous materials such as acids, alkalis, or flammable substances. If transported with other non-hazardous goods, a clear separation is maintained to prevent cross-contamination or damage.
Documentation: All necessary transportation documents, including bills of lading, commercial invoices, packing lists, and certificates of compliance, are prepared and accompanying the shipment. These documents ensure smooth customs clearance (for international shipments) and accurate delivery to the consignee.
Order Processing: Upon receiving an order, the sales team verifies the details, including product specifications, quantity, delivery address, and shipping method. The warehouse is then notified to prepare the goods. If the wire is in stock, it is retrieved from inventory; if not, production is scheduled to meet the delivery timeline.
Inventory Check: Before shipping, the warehouse staff conducts a thorough check to ensure that the wire matches the order requirements. This includes verifying the wire gauge, length, color, markings, and packaging condition. Any discrepancies are immediately addressed to avoid shipping incorrect products.
Scheduling and Notification: The logistics team schedules the shipment based on the customer's preferred delivery date and the chosen transportation mode. Once the shipment is confirmed, the customer is notified with details such as the tracking number, estimated delivery time, and the name of the carrier. This allows the customer to track the shipment's progress.
Dispatch and Tracking: The wire is handed over to the carrier, and a dispatch note is signed as proof of receipt. For road and rail shipments, tracking systems provided by the carrier allow both the manufacturer and the customer to monitor the shipment's location in real-time. For sea and air shipments, container or airway bills are used for tracking.
Delivery and Confirmation: Upon arrival at the destination, the customer is notified to arrange for receipt. The customer inspects the shipment for any visible damage to the packaging. If the packaging is intact, the customer signs the delivery receipt. In case of damage, a detailed report is filed with the carrier, and the manufacturer is notified to initiate a claim and arrange for a replacement if necessary.
Sample Request and Preparation: Customers can request samples through various channels, such as the manufacturer's website, email, or phone. The request typically includes details such as the required length (usually 1-5 meters), color, and any specific testing requirements. The samples are prepared from the same production batch as the bulk wire to ensure consistency. They are cut to the requested length and packaged in small cartons or plastic bags, with a label containing the product specifications and batch information.
Sample Testing Information: Along with the sample, a document is provided that outlines the product's key specifications, such as rated temperature, voltage, current-carrying capacity, and compliance with standards. This helps the customer conduct relevant tests, such as heat resistance testing (exposing the sample to 90°C for an extended period to check for insulation degradation), insulation resistance testing, and flexibility testing.
Sample Shipping: Samples are shipped via express courier services to ensure quick delivery. The packaging is designed to protect the sample during transit, with padding to prevent bending or damage. The customer is provided with a tracking number to monitor the sample's delivery.
Feedback Collection: After the customer receives and tests the sample, the manufacturer follows up to collect feedback. This feedback helps address any concerns the customer may have and provides valuable insights for improving the product or service. Positive feedback often leads to bulk orders.
Warranty Policy: The manufacturer provides a warranty period, typically 1-3 years from the date of delivery, covering defects in materials and workmanship. If the wire fails within the warranty period under normal usage conditions (as specified in the product manual), the manufacturer offers repair, replacement, or a refund, depending on the extent of the damage. The customer must provide proof of purchase and a detailed description of the issue, along with photos if possible.
Technical Support: A dedicated team of technical experts is available to assist customers with any questions or problems related to the wire's installation, usage, or maintenance. Support is provided via phone, email, or video conferencing. The team can offer guidance on proper installation techniques to ensure the wire performs optimally in high-temperature environments, recommend compatible accessories, and troubleshoot issues such as insulation damage or abnormal current readings.
Complaint Handling: Customer complaints are handled promptly and efficiently. Upon receiving a complaint, a customer service representative registers the issue and assigns it to the relevant department for investigation. The investigation is completed within a specified timeframe (usually 2-5 working days), and a resolution is proposed to the customer. If the complaint is valid, the manufacturer takes corrective action, which may include replacing the defective product, providing compensation, or offering technical assistance to rectify the problem.
Product Training: For large customers or industrial clients, the manufacturer may offer on-site training sessions to educate their staff on the proper handling, installation, and maintenance of the wire. This helps prevent improper usage that could lead to product failure and ensures that the customer gets the maximum benefit from the product.
Regular Follow-Up: The manufacturer conducts regular follow-up checks with customers to ensure that the wire is performing as expected. This proactive approach helps identify potential issues early and allows for timely intervention, enhancing customer satisfaction and loyalty.
Hongtai Cable Technology Co., Ltd
E-mail: export@qlcables.com
sales@qlcables.com
Tel/whatsapp:+86-18032066271
Tambahkan ： Zona Pengembangan Industri Xiaokou, Kabupaten Ningjin, Kota Xingtai ， Provinsi Hebei, Cina
Hak Cipta © Hongtai Cable Technology Co., Ltd Dukungan Teknis:Teknologi Ronglida
Situs web ini menggunakan cookie untuk memastikan Anda mendapatkan pengalaman terbaik di situs web kami.
English
Español
Portugues
Pусский
Français
العربية
ไทย
Türk dili
Tiếng Việt
Telepon
Surat