New Energy Cable Suppliers

How to achieve low smoke, halogen-free and high flame retardant performance of New Energy Cable through process innovation? ​

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Selection of low smoke, halogen-free materials

The first step to achieve low smoke, halogen-free performance of new energy cable is to carefully select raw materials. Traditional cables often use halogen-containing polymers as insulation and sheath materials. Once a fire occurs, a large amount of toxic hydrogen halide gas will be released, which seriously threatens the safety of personnel and hinders rescue work. Low smoke, halogen-free materials, such as halogen-free flame retardant polyolefins, have become ideal substitutes. We use advanced material screening technology to accurately select polyolefin materials that meet international environmental standards and have excellent low smoke, halogen-free performance from materials provided by many suppliers. This material does not produce hydrogen halide gas when heated or burned, and the smoke emission is extremely low, which greatly improves safety when a fire occurs. ​
Application of high flame retardant additives

In order to give cables high flame retardant properties, it is crucial to add suitable flame retardants to the raw materials. Inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide are common choices. They decompose at high temperatures and absorb a lot of heat, thereby inhibiting the combustion of cable materials. Explore new flame retardant additives, such as nano-level flame retardants. Nanomaterials, due to their unique size effect and high specific surface area, can be more evenly dispersed in the cable matrix material, forming a closer bond with the material, greatly improving the flame retardant efficiency. A small amount of nano-level flame retardant can significantly improve the flame retardant performance of the cable, while reducing the negative impact on other properties of the material, achieving a good balance between flame retardant performance and overall cable performance. ​
Optimization and innovation of manufacturing process​
Advanced extrusion process​
The extrusion process is a key link in cable manufacturing and has a decisive influence on the structure and performance of the cable. In the production of new energy cable, it is crucial to use high-precision extrusion equipment and advanced extrusion process parameter control technology. Yangzhou Yaguang Cable Co., Ltd. introduced the world's leading extrusion production line, which ensures that low-smoke halogen-free materials are evenly and tightly wrapped around the conductor to form high-quality insulation and sheath layers by precisely controlling extrusion temperature, pressure and speed parameters. Advanced extrusion equipment can realize multi-layer co-extrusion process, adding a special flame retardant isolation layer between the insulation layer and the sheath layer to further improve the overall flame retardant performance of the cable. This multi-layer structure design not only enhances the fire resistance of the cable, but also effectively blocks heat transfer and improves the stability of the cable in high temperature environments.​
Application of irradiation cross-linking process​
Irradiation cross-linking process is one of the important means to improve the performance of cables. The cables are irradiated by high-energy rays (such as electron beams) to form a cross-linked structure between the polymer molecular chains in the cable materials. This cross-linked structure can significantly improve the heat resistance, mechanical properties and flame retardancy of the cables. In the production of new energy cables, Yaguang uses its advanced irradiation equipment to irradiate and cross-link low-smoke halogen-free polyolefin materials. After irradiation cross-linking, the molecular structure of the cable material is more stable, and it is not easy to melt and flow at high temperatures, thereby effectively preventing the spread of flames. The cross-linked cable also has better weather resistance and wear resistance, can adapt to complex outdoor environments, and meet the use requirements of new energy cables in different scenarios. ​
Innovative considerations for structural design​
Structural optimization of multi-core cables​
For multi-core new energy cables, reasonable structural design can improve their overall performance. When designing multi-core cables, Yaguang Cable fully considers the electrical performance and heat dissipation requirements between the cores. A special insulation separation structure is used to effectively isolate the cores, reduce electromagnetic interference, and improve the transmission stability of the cable. In the selection of insulation separation materials, low-smoke halogen-free and highly flame-retardant materials are also used to ensure that when a fire occurs, the cores will not affect each other and maintain the continuity of power transmission. The company also pays attention to the heat dissipation design of the cable. By optimizing the filling materials and structural layout of the cable, increasing the heat dissipation channel, improving the heat dissipation efficiency of the cable, and reducing the temperature of the cable during operation, the safety and service life of the cable are further improved. ​
Setting of fireproof isolation layer​
In order to enhance the high flame retardant performance of the cable, setting a fireproof isolation layer in the cable structure is an effective innovative design. In some new energy cable products, Yaguang Cable specifically adds a fireproof isolation layer between the insulation layer and the sheath layer. This fireproof isolation layer is usually made of high-temperature resistant and non-combustible materials, such as ceramic silicone rubber. Under normal circumstances, ceramic silicone rubber remains soft and elastic, and does not affect the flexibility and bendability of the cable. Once encountering a high-temperature fire, the ceramic silicone rubber quickly undergoes a ceramic reaction to form a hard ceramic shell, which effectively blocks the transfer of flames and heat, protects the internal conductors and insulation layers from damage, and ensures that the cable can continue to supply power in a fire, buying precious time for personnel evacuation and fire rescue.​
Strengthening of quality inspection and control​
Strict low-smoke halogen-free performance testing​
To ensure that new energy cables truly have low-smoke halogen-free performance, Yaguang Cable has established a strict testing system. In the raw material entry inspection link, each batch of low-smoke halogen-free materials is fully tested, including halogen content testing, smoke density testing, etc. Advanced chemical analysis instruments are used to accurately determine the halogen content in the material to ensure that it meets the standard requirements of low-smoke halogen-free. Through the smoke density testing equipment, the fire scene is simulated, the smoke volume of the material is detected when it burns, and the smoke volume is strictly controlled at an extremely low level. In the cable finished product inspection stage, the low-smoke halogen-free performance of the cable is sampled again to ensure that each batch of cables shipped from the factory can meet the relevant standards and customer needs. ​
Multi-dimensional testing of high flame retardant performance​
For the high flame retardant performance of the cable, we also use a multi-dimensional testing method. In addition to the conventional vertical burning test and horizontal burning test, more challenging bundled burning test and fire resistance test are also introduced. In the bundled burning test, the burning of multiple cables in actual use scenarios is simulated to test the flame retardant performance of the cables in the bundled state. Through fire resistance testing, the ability of cables to maintain normal power supply under long-term burning of high-temperature flames is evaluated. The company is equipped with a professional combustion test laboratory with advanced testing equipment and experienced testing personnel. It strictly tests in accordance with international standards and industry specifications to ensure that each new energy cable has excellent high flame retardant performance. ​
The low smoke, halogen-free and high flame retardant performance of new energy cables is crucial to the development of the new energy industry. Yaguang Cable continues to promote the innovation of new energy cable technology through continuous efforts in raw material selection, manufacturing process optimization, structural design innovation, and quality inspection and control, and provides the market with safe, reliable, green and environmentally friendly new energy cable products. With the continuous advancement of science and technology and the continuous growth of industry demand, the road of new energy cable technology innovation will never stop, and will contribute more to the vigorous development of the global new energy industry.