Thw-2 Green Copper Grounding Wire 12AWG & 4AWG 90° C PVC

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2025-08-19 08:17:59

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Introdução ao produto

Detailed Introduction to Thw-2 Green Copper Grounding Wire 12AWG & 4AWG (90°C PVC)

I. From the Perspective of the Product Itself

(1) Specification Parameters

The Thw-2 green copper Grounding Wire is meticulously designed in terms of specification parameters to fully meet the grounding requirements of electrical systems in various scenarios, providing a solid technical guarantee for grounding safety.

This grounding wire is available in two specifications: 12AWG (2.05mm²) and 4AWG (21.15mm²). The 12AWG specification has a conductor diameter of approximately 1.63mm, and the overall outer diameter of the cable is about 4.0mm. At 20°C, its conductor DC resistance does not exceed 1.588Ω/km. This extremely low resistance ensures that fault currents can be quickly and smoothly conducted to the ground. The insulation resistance is ≥100MΩ, and the excellent insulation performance can effectively avoid safety hazards such as electric leakage. The 4AWG specification has a conductor diameter of about 5.19mm, with an overall cable outer diameter of approximately 8.5mm. At 20°C, the conductor DC resistance does not exceed 0.248Ω/km, which can carry larger fault currents, and the insulation resistance is also ≥100MΩ, meeting the high requirements for grounding of large-scale equipment.

The rated temperature of this series of grounding wires is 90°C, which means that the cable can maintain stable performance in an environment up to 90°C, without problems such as aging of the insulation layer or degradation of conductivity due to high temperatures. Its bending radius is 6 times the outer diameter of the cable. The bending radius of the 12AWG specification is about 24mm, and that of the 4AWG specification is about 51mm. This good Flexibility allows the cable to be easily laid in narrow spaces, adapting to complex environments such as corners and pipes.

In addition, the grounding wire has excellent voltage resistance, capable of withstanding certain voltage impacts, ensuring that it will not be broken down in emergency situations and maintaining the continuity of the grounding loop. In terms of the mechanical properties of the conductor, both 12AWG and 4AWG conductors have sufficient tensile strength and elongation, which are not easy to break during installation and use and can withstand a certain amount of external pulling force.

(2) Characteristic Applications

The Thw-2 green copper grounding wire, with its unique performance and specifications, has distinctive applications in many fields, ensuring the safe operation of various electrical equipment.

The 12AWG specification grounding wire is suitable for grounding of small electrical equipment. In family residences, the household distribution box is the core of power distribution. Its internal grounding terminal needs to be connected to the grounding electrode through a reliable grounding wire. The 12AWG Grounding Wire can meet this demand, ensuring that when a fault such as electric leakage occurs in the distribution box, the current can be quickly conducted to the ground. Luminaires in lighting circuits, especially those with metal casings, also need to be grounded with 12AWG grounding wires to prevent the luminaires from causing harm to the human body due to electric leakage. In addition, the metal casings of small household appliances such as microwave ovens, washing machines, and refrigerators are grounded through 12AWG grounding wires, which can effectively avoid the phenomenon of live casings caused by internal insulation damage of the equipment.

The 4AWG specification grounding wire is mainly used for connecting large-scale equipment to the main grounding network. In industrial production, industrial motors are important power equipment, which may have faults such as electric leakage during operation. The 4AWG grounding wire can quickly conduct these fault currents into the grounding network, ensuring the safety of equipment and operators. As a key equipment in the power system, transformers have particularly important grounding. The 4AWG grounding wire can connect the grounding terminal of the transformer to the grounding network, ensuring the safety of the transformer in case of faults. The main grounding trunk of commercial buildings needs to carry the fault current of the entire building. With its excellent conductivity and current-carrying capacity, the 4AWG grounding wire becomes an ideal choice for the main grounding trunk, which can connect the grounding loops of various areas to form a complete and reliable grounding system.

In addition to the above main uses, the grounding wire can also be applied in other scenarios. For example, in medical equipment in hospitals, many precision instruments need reliable grounding to ensure their normal operation and safety in use. 12AWG or 4AWG grounding wires can be selected according to the power of the equipment and grounding requirements. In data centers, a large number of servers and network equipment also need good grounding to prevent static electricity and electromagnetic interference, and this grounding wire can meet their grounding needs.

(3) Material and Style

In terms of material selection and style design, the Thw-2 green copper grounding wire fully considers the needs of grounding functions and the characteristics of the use environment, ensuring the reliability and practicality of the product.

The conductor is made of high-purity electrolytic copper with a purity of more than 99.95%. High-purity electrolytic copper has excellent conductivity, which is a crucial characteristic of Grounding Cables. It can minimize the grounding resistance, ensuring that fault currents and static electricity can be quickly and smoothly conducted to the ground, thereby protecting electrical equipment and personnel safety. At the same time, electrolytic copper has good ductility and toughness, so that the grounding wire is not easy to break during installation processes such as bending and stretching, and can adapt to various complex wiring environments, whether buried, conduit installation or surface-mounted, it can maintain good mechanical properties.

The insulation layer is made of 90°C high-temperature resistant PVC material. This PVC material has undergone special treatment and has excellent high-temperature resistance. It can maintain stable insulation performance in a high-temperature environment of 90°C without softening, cracking, etc., and is suitable for places with high temperatures such as kitchens, boiler rooms, and industrial workshops. In addition, the PVC material also has good insulation performance, which can effectively isolate the conductor from the external environment and prevent electric leakage accidents. At the same time, it has certain chemical corrosion resistance, can resist the erosion of general chemical substances, and prolong the service life of the grounding wire.

In terms of style, the grounding wire adopts a single-core structure. The single-core design makes the cable structure simple and easy to wire, especially in pipe Wear and buried operations, there will be no entanglement problems that may occur with Multi-Core cables. Its outer sheath is green, which is the internationally accepted color for grounding identification. This eye-catching color design allows operators to quickly identify the grounding cable during wiring, avoiding confusion with other Power Cables, reducing wiring errors, and improving installation efficiency and safety.

Overall, the grounding wire has a smooth and flat appearance, and the green outer sheath forms a sharp contrast with the internal Copper Conductor, which is not only beautiful but also convenient for inspection and maintenance, enabling staff to quickly find whether the cable has problems such as damage and aging.

(4) Production Process

The production process of Thw-2 green copper grounding wire is rigorous and meticulous, with strict control over every link from raw material processing to finished product inspection, ensuring that product quality meets relevant standards and usage requirements.

In the conductor manufacturing process, high-purity electrolytic copper is first processed. After melting the electrolytic copper, copper rods are made through a continuous casting process. During the casting process, parameters such as temperature and cooling rate are strictly controlled to ensure the purity and mechanical properties of the copper rods. Subsequently, the copper rods are drawn into Copper Wires meeting 12AWG and 4AWG specifications through multiple wire drawing processes. During the wire drawing process, the size of the wire drawing die and the wire drawing speed are precisely controlled to ensure that the diameter of the copper wire is uniform, the surface is smooth and free of burrs, so as to reduce the resistance during current transmission. Since the grounding wire has a single-core structure, there is no need for stranding, and a single copper wire is directly used as the conductor.

The extrusion of the insulation layer is one of the key processes. A special extruder is used to heat the 90°C high-temperature resistant PVC material to a molten state, and then evenly coat it on the surface of the copper conductor to form an insulation layer. During the extrusion process, the extrusion temperature, pressure, and speed are strictly controlled to ensure that the thickness of the insulation layer is uniform, closely combined with the conductor, and free of bubbles, pinholes, and other defects. The thickness of the insulation layer is accurately adjusted according to different specifications of grounding wires. The insulation layer thickness of the 12AWG specification is about 0.8mm, and that of the 4AWG specification is about 1.2mm, to meet different insulation and protection needs. After extrusion, the insulation layer is quickly cooled and shaped through a cooling water tank to ensure its dimensional stability and structural integrity.

During the production process, the cable also needs to undergo a number of performance tests. For the conductor, parameters such as DC resistance and diameter deviation are tested to ensure that the conductivity meets the standards. For the insulation layer, insulation resistance test, voltage resistance test, high-temperature aging test, etc., are carried out to verify its insulation effect, voltage resistance capacity, and high-temperature resistance. In addition, the appearance of the cable is inspected to ensure that the surface is smooth, the color is uniform, and there are no defects such as damage.

Full-process quality monitoring is implemented during the production process, with detailed records for each link for traceability. The finished cables can enter the next process only after passing strict inspection, ensuring high-quality grounding products for users.

II. From the Perspective of General Product Information

(1) Packaging

The packaging design of Thw-2 green copper grounding wire fully considers the transportation, storage, and sales needs of the product, aiming to protect product quality and facilitate user use and identification.

For the 12AWG specification grounding wire, it is usually packaged in coils. Each coil has a length of 100 meters or 200 meters, and the cable is neatly wound on a plastic reel. The plastic reel is made of high-strength polyethylene material, which has good pressure resistance and impact resistance, and can effectively protect the cable from damage during transportation and storage. Both sides of the reel are provided with baffles to prevent the cable from falling off the reel. The baffles are printed with clear product information, including product name, specification (12AWG), length, rated temperature (90°C), manufacturer, production date, execution standard, etc., which is convenient for users to quickly understand the basic situation of the product.

The 4AWG specification grounding wire, due to its thick diameter and heavy weight, is packaged with wooden reels. The wooden reels are made of high-quality hardwood, after drying treatment, and have high strength and stability, which can bear the weight of the cable and the pressure during transportation. Both ends of the reel are equipped with metal flanges, which enhance the structural strength of the reel and prevent deformation. Similarly, the wooden reel is also printed with detailed product information and is equipped with metal lifting rings, which is convenient for loading and unloading with forklifts and other equipment.

Both plastic reel and wooden reel packaged grounding wires are wrapped with a layer of moisture-proof plastic film to prevent the cable from getting damp, especially suitable for storage and transportation in humid environments. For small batches of retail products, such as 10-meter and 20-meter short wires, they are packaged in sealed plastic bags. The packaging bag is made of thickened PE material, which has good moisture resistance and wear resistance. The bag is printed with the main information of the product and usage precautions, which is convenient for users to buy and carry.

All packaging materials meet environmental protection requirements and are recyclable, reducing environmental pollution. At the same time, the packaging design is convenient for stacking and storage, saving warehouse space and improving logistics efficiency.

(2) Transportation

The transportation process of Thw-2 green copper grounding wire strictly follows relevant regulations and operating procedures to ensure that the products are delivered to the destination safely and timely.

In terms of transportation mode selection, a variety of transportation modes are used in combination according to the transportation distance and order quantity. For domestic short-distance transportation, freight cars are usually used. This transportation mode has high flexibility and can quickly deliver products to customers, which is suitable for transportation of small batches and urgent orders. For long-distance transportation, railway freight or road express transportation is mostly used. Railway freight has the characteristics of large transportation volume, relatively low cost, and good stability, which is suitable for transportation of large quantities of products; road express transportation can provide door-to-door service, which is convenient for customers to receive goods.

Before loading, carefully check the packaged grounding wires to ensure that the packaging is intact and the reels are not damaged or deformed. For 4AWG grounding wires packaged with wooden reels, use forklifts and other equipment for loading and unloading to avoid damage caused by manual handling. In the carriage of the transport vehicle, reasonably arrange the placement of cables to avoid mutual extrusion and collision. For heavier wooden reels, place them at the bottom of the carriage and fix them with ropes or fixing devices to prevent sliding during transportation.

During transportation, strictly control the transportation environment. Avoid the cable being exposed to direct sunlight to prevent the PVC Insulation layer from aging due to high temperature; when transporting in rainy days, ensure that the carriage of the transport vehicle is well sealed, or cover the cable to prevent the cable from getting damp. At the same time, during transportation, try to avoid sudden braking, sharp turns, and other operations to reduce friction and collision between products.

During transportation, special personnel are arranged to track and monitor the goods, and real-time information on the location and transportation status of the goods is obtained through the logistics information system. In case of special circumstances, such as road blockages and bad weather, communicate with customers in a timely manner, adjust the transportation plan, and ensure that the products can be delivered as soon as possible.

(3) Delivery

The delivery process of Thw-2 green copper grounding wire is standardized and orderly, with efficient coordination in every link from order receipt to goods delivery, to ensure that customers can receive the required products in a timely manner.

After customers place orders through online platforms, emails, phone calls, etc., customer service personnel will confirm the order within 1-2 working days, verify the specifications (12AWG or 4AWG), quantity, length, receiving address, contact information, delivery time and other information of the products required by customers to ensure that the order information is accurate. If the customer has special requirements for the product, such as specific length cutting, the customer service staff will communicate with relevant departments in a timely manner, confirm whether the requirements can be met, and feedback the results to the customer.

After the order is confirmed, the warehouse manager will retrieve the corresponding products from the warehouse in a timely manner according to the order information. In the retrieval process, strictly follow the first-in-first-out principle, giving priority to distributing products with earlier production dates to ensure that the products are used within the shelf life. At the same time, re-inspect the retrieved products, check whether the specifications, quantity, and packaging of the products are consistent with the order, and check whether the packaging is intact to ensure that the delivered products are of qualified quality.

Before the products are shipped out of the warehouse, the warehouse manager will carry out necessary packaging reinforcement for the products, especially for products that need to be transported over long distances, and will add buffer materials such as foam pads and bubble films to enhance the protection ability of the packaging. At the same time, a detailed delivery note is generated, which indicates the order number, customer information, product information (specifications, quantity, length), delivery date, transportation method, estimated arrival time, etc., and the delivery note is sent along with the goods.

After the warehouse transfers the goods to the logistics department, the logistics department will arrange the corresponding transport vehicles and routes according to the receiving address and transportation method, and enter the delivery information into the logistics system to generate a logistics tracking number. The logistics tracking number will be fed back to the customer in a timely manner, facilitating the customer to query the transportation status of the goods through the logistics platform.

In the delivery process, a sound information feedback mechanism has been established. If there is insufficient product inventory, logistics delays, etc., the customer will be notified in a timely manner, and solutions will be negotiated, such as changing product specifications and adjusting delivery time, to meet customer needs to the greatest extent.

(4) Samples

In order to allow customers to better understand the quality and performance of Thw-2 green copper grounding wires, the company provides sample services, so that customers can test and evaluate before bulk purchase.

Customers can apply for samples through the company's official website, email, phone and other channels. When applying, it is necessary to provide the specifications (12AWG or 4AWG), quantity, detailed receiving address, contact information and other information of the required samples. The company's customer service staff will contact the customer within 1-3 working days after receiving the sample application to confirm the sample demand and inform the customer of relevant information about the sample, such as whether the sample is charged, the delivery method, and the estimated delivery time.

For customers with clear purchase intentions, the company usually provides free samples, and only charges the express fee of the samples. The specifications, materials and performance of the samples are completely consistent with the officially sold products, ensuring that customers can accurately understand the quality of the products through the samples. The length of the sample is generally 1-2 meters, which is sufficient for customers to test the appearance, size, flexibility, insulation layer thickness, conductivity and other aspects of the cable.

The samples are packaged in small sealed bags or small cartons, which are printed with product specifications, models and other information for easy identification by customers. At the same time, product manuals, quality inspection reports and other materials are attached with the samples to facilitate customers to understand the detailed parameters and quality inspection of the products.

Samples are sent by express. The company will choose reputable and high-quality express companies such as SF Express, Yuantong, Zhongtong to ensure that the samples can be delivered to customers quickly and safely. After the sample is sent, the company will inform the customer of the express tracking number, and the customer can query the delivery progress of the sample through the official website or customer service of the express company.

After receiving the sample, if the customer has any questions about the sample or needs further technical support, the company's professional and technical personnel will provide answers and help in a timely manner to ensure that the customer can fully understand the performance and characteristics of the product.

(5) After-sales

The Thw-2 green copper grounding wire comes with a comprehensive after-sales service to safeguard the legitimate rights and interests of customers, ensuring a worry-free experience during usage.

In terms of product quality guarantee, the company promises a 10-year quality warranty period for the sold grounding wires under normal usage conditions. Within the warranty period, if the product malfunctions due to material or production process issues, such as conductor breakage, insulation layer aging and cracking, the company will provide free product replacement or repair services. Customers only need to provide the purchase certificate and a description of the product fault, and the company will arrange professional personnel to verify and handle the issue.

If customers encounter any problems during usage, they can contact the company's after-sales service team through the customer service hotline, email, online customer service, etc. The after-sales service personnel will respond to customer needs within 24 hours, answering and handling the questions raised by customers. For technical issues, such as the installation method of the grounding wire, the grounding resistance testing method, and compatibility with other equipment, the after-sales service team will arrange professional technical personnel to provide customers with detailed guidance and suggestions.

If customers require on-site technical support, the company will arrange nearby technical personnel to arrive at the site within the agreed time according to the customer's geographical location and the urgency of the problem, to assist customers in solving the issues. On-site technical support services are usually provided free of charge within the quality warranty period. Beyond the warranty period, a certain service fee will be charged based on the actual situation.

The company has formulated a clear policy regarding product return and exchange. If the received product has quality problems or does not match the order information, customers can apply for return or exchange within 7 days of receiving the product, and the company will bear the round-trip freight. If customers need to return or exchange the product due to their own reasons, and the product is unused with intact packaging, they can apply for return or exchange within 30 days of receiving the product, but they need to bear the round-trip freight.

The company has also established a customer feedback mechanism, conducting regular follow-ups with customers to understand the product usage and customer satisfaction, collecting customer opinions and suggestions, and continuously improving product and service quality. Through the perfact after-sales service system, the company is committed to providing customers with high-quality and efficient services, establishing a good brand image.