Providing you with a one-stop, customized service for all types of cables.
2021-09-09
Primary applications of low-smoke, halogen-free cables
The product boasts excellent flame-retardant performance, producing minimal smoke during combustion and emitting no corrosive gases. It is widely used in nuclear power plants, subway stations, telephone exchanges, computer control centers, high-rise buildings, hotels, broadcasting and television stations, critical military facilities, oil platforms, and other locations with high concentrations of people and low air density.
2021-09-09
Analyze how to improve the pass rate of fire-resistant cables in fire-resistance tests.
In recent years, the usage of fire-resistant cables has been steadily increasing, primarily because users have come to recognize their superior performance. At the same time, the number of manufacturers producing these cables is also growing rapidly. However, ensuring that the quality of fire-resistant cables remains consistently reliable and stable over the long term is of utmost importance.
Typically, when companies develop fire-resistant cable products, they first produce a small trial batch, which is then submitted to relevant national testing institutions for certification. Once the testing report is obtained, mass production can begin. A few cable manufacturers, however, have taken it a step further by establishing their own in-house fire-resistance testing labs.
It’s worth noting that fire-resistance testing serves as a critical check on the manufacturing process itself. Even with identical production methods, variations in cable performance may still occur across different production runs due to factors like material consistency or environmental conditions. For manufacturers producing fire-resistant cables, achieving a 99% pass rate in fire-resistance tests might seem impressive—but this still leaves a 1% margin of potential risk. And for end-users, such a 1% risk translates directly into a 100% safety hazard.
To address these challenges and improve the overall reliability of fire-resistant cables, the following measures can be implemented: focusing on high-quality raw materials, carefully selecting appropriate conductor types, and rigorously controlling production processes at every stage.
2021-09-09
Analyzing the Development Trends of Transformation and Upgrading in China's Cable Industry
In recent years, China's economic development has entered a "new normal." Amidst the accelerating integration of IT and industrialization, Industry 4.0, and the "Internet Plus" initiative, the wire and cable industry must seize these opportunities to strengthen its core capabilities, accelerate transformation, and drive much-needed upgrades. The internet is increasingly penetrating not only consumer goods industries but also critical sectors like equipment manufacturing, energy, and advanced materials, fundamentally reshaping traditional industrial production models. In response, wire and cable companies must firmly grasp this golden opportunity to speed up their transformation, ultimately elevating the global competitiveness of "Made in China."
Strengthen control over the quality of cable raw materials to enhance cable performance.
For manufacturing companies, the top priority is to strengthen quality control over the raw materials used to produce cables. Raw materials form the very foundation of any product—so if you want to ensure product quality, you must start at the source. The quality of copper conductors, aluminum conductors, and cable compounds directly determines the performance characteristics of wire and cable products.
It is recommended that companies conduct thorough testing on key properties of these raw materials when making purchases—for instance, measuring the DC resistance of copper conductors or evaluating the mechanical and dielectric strength properties of cable compounds—thus guaranteeing that the materials meet stringent quality standards. Additionally, once the raw materials arrive at the factory, the in-house quality inspection department should rigorously test them by batch to prevent the risky practice of prioritizing low costs at the expense of material quality.
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2021/09
Important precautions to take during cable maintenance and testing
Cables whose surface does not reveal the fault location. For these types of faulty cables, in addition to verifying documentation and confirming the cable’s name, it is essential to use a cable identifier to distinguish them from other energized, operational cables—especially when multiple cables are present within the same cable tray. Accurately identifying the cable intended for maintenance is critical, as mistaking it for an energized cable could lead to dangerous accidents, such as accidentally disconnecting a live line.
Moreover, this step effectively prevents errors caused by incorrectly attached cable tags, which might otherwise result in misidentifying the wrong cable.
When cutting the cable, ensure robust safety measures are in place. Before proceeding with the cut, confirm that the cable being targeted is indeed the one to be disconnected—and verify that it is de-energized. Only after driving an insulated iron rod (equipped with an epoxy resin handle) into the cable core while ensuring proper grounding can work begin. The person holding the wooden handle must wear insulated gloves and stand on an insulating mat, paying close attention to maintain excellent grounding of the iron rod throughout the process.
If the cable needs to be moved during the procedure, exercise extreme caution and avoid forceful or rough handling to prevent damage to any other operational cables nearby.
Finally, after completing the repair, carefully reconfirm the phase sequence at both ends of the cable. Remove any existing phase markers first, then securely apply the correct phase-color labels to avoid confusion between old and new markings.
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2021/09
The company has established a comprehensive, fast, and high-quality sales network.
Guanghui Cable Co., Ltd. is located in the Sima Industrial Zone, Ningjin County, Hebei Province. Since its establishment in 2000, the company has steadily built a strong reputation and earned customer trust through consistently reliable product quality, enabling it to expand its market presence.
Our company specializes in a wide range of wire and cable products, including power cables, rubber-sheathed cables, mining cables, welding machine cables, low-smoke halogen-free cables, flame-retardant and fire-resistant cables, shielded cables, and control cables—catering to diverse industry needs.
We are equipped with two advanced 6–35 kV three-layer co-extrusion dry crosslinking production lines, along with over 80 sets of specialized equipment for wire drawing, stranding, extrusion, shielding, and cabling processes. Additionally, we boast two sets of partial discharge testing devices capable of handling cables rated up to 35 kV, complemented by fully equipped laboratories dedicated to electrical and physicochemical performance testing. This ensures rigorous inspection of all incoming raw materials, work-in-progress items, and finished products.
The cable products manufactured by our company have been recognized as "Hebei Provincial High-Quality Products" and "Hebei Provincial Famous Brand Products." Moreover, the company has been honored as a "Provincial Contract-Abiding and Credit-Worthy Unit" for 10 consecutive years and was awarded the title of "Hebei Province's 8th Consumer-Trustworthy Enterprise."
Beyond these accolades, Guanghui Cable has also been recognized as an "Advanced Hebei Provincial Enterprise Focused on Quality and Efficiency," and proudly ranks among the top 200 enterprises nationwide in terms of comprehensive strength within the wire and cable industry. Additionally, we hold the prestigious "AAA" credit rating, underscoring our commitment to excellence and reliability.
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2020/05
The company boasts two state-of-the-art 6–35 kV three-layer co-extrusion dry crosslinking production lines, along with over 80 sets of specialized equipment for wire and cable manufacturing—ranging from wire drawing and stranding to extrusion, shielding, and cabling processes. Additionally, we are equipped with two sets of partial discharge testing devices tailored for cables rated up to 35 kV, complemented by a fully stocked laboratory outfitted with advanced electrical and physicochemical testing equipment. This allows us to rigorously inspect all incoming raw materials, in-process products, and finished goods.
Our cable products have earned prestigious accolades, including recognition as "Hebei Province High-Quality Products" and "Hebei Province Famous Brand Products." Moreover, the company has been honored for 10 consecutive years as a provincial-level "Contract-Abiding and Credit-Worthy Unit," while also receiving the title of "Hebei Province's 8th Consumer Trustworthy Unit." We’ve also been recognized as an "Advanced Hebei Province Enterprise Focused on Quality and Efficiency," as well as being named among the top 200 companies nationwide in terms of comprehensive strength within the wire and cable industry—and proudly awarded the coveted "AAA" credit rating.
To ensure seamless delivery and exceptional service, our company has established a robust, agile, and customer-centric sales network that spans more than 20 provinces, municipalities, and autonomous regions across China. Our products have successfully supported numerous international projects and are widely utilized in critical sectors such as energy, transportation, construction, municipal infrastructure, and industrial facilities—earning us high praise from customers nationwide.
At [Company Name], we adhere to the core business philosophy of "Customer First, Striving for Excellence," while upholding the principle of "Integrity and Trustworthiness" to deliver unparalleled quality and service to our valued clients. If you’re interested in learning more about our products or services, feel free to leave us a message online or give us a call—we’d be delighted to assist you!
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2020/05
Primary applications of low-smoke, halogen-free cables
The product boasts excellent flame-retardant performance, producing minimal smoke during combustion and emitting no corrosive gases. It is widely used in nuclear power plants, subway stations, telephone exchanges, computer control centers, high-rise buildings, hotels, broadcasting and television stations, critical military facilities, oil platforms, and other locations with high concentrations of people and low air density.
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2020/05
Basic Structure of Power Cables
The basic structure of a power cable consists of four main components: the conductor (core), insulation layer, shielding layer, and protective layer. The conductor is the electrically conductive part of the cable, responsible for transmitting electrical energy—and it forms the core component of the power cable. The insulation layer electrically isolates the conductor from the ground as well as from other phase conductors, ensuring efficient energy transmission. It is an indispensable part of the power cable’s design. Power cables rated 15 kV and above typically include both a conductor shielding layer and an insulation shielding layer. Finally, the protective layer serves to shield the cable from external contaminants and moisture, while also preventing direct physical damage caused by external forces.
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2020/05
Founded in 2000, Guanghui Cable is a comprehensive wire and cable enterprise integrating professional R&D, manufacturing, sales, and service.
Contact us
TEL: +86-319-5986999
TEL: +86-319-5983448
Phone: +86-15833709658
No. 8 Simahuilong Street, Ningjin, Hebei
