With the rapid development of modern power systems and industrial automation technology, cables, as important carriers of power transmission and signal control, have a direct impact on the stability and safety of the entire system in terms of their performance and quality. Among various types of cables, halogen-free low smoke flame-retardant control cables have become an important member in the field of power transmission due to their advantages.
1、 Execution standards and reference specifications
The manufacturing of halogen-free low smoke flame-retardant control cables follows strict enterprise standards and is produced and inspected in accordance with national standards GB9330-88 and GB/T12706-2002. This series of standard specifications ensures that the performance and quality of cables meet industry standards, providing reliable power transmission guarantees for users.
2、 Usage characteristics
1. Working temperature and laying temperature: The long-term allowable working temperature for halogen-free, low smoke, flame-retardant control cables is 90 ℃, which can maintain stable performance in high temperature environments. At the same time, the laying temperature of the cable shall not be lower than 0 ℃, and it is suitable for installation and use under various climatic conditions.
2. Recommended bending radius: The bending radius of halogen-free low smoke flame-retardant control cables varies depending on the structure and purpose of the cable. The bending radius of unarmored cables should not be less than 6 times the outer diameter of the cable, while cables with armor or copper tape shielding structures should not be less than 12 times the outer diameter of the cable. For halogen-free low smoke flame-retardant power cables, the bending radius of single core cables shall not be less than 20 times the outer diameter of the cable, and the bending radius of multi-core cables shall not be less than 15 times the outer diameter of the cable. These regulations ensure that cables can maintain good performance and safety during installation and use.
3、 Technical parameters
The halogen-free low smoke flame-retardant control cable performs excellently in terms of technical parameters, meeting or exceeding relevant standards and regulations. Among them, the direct current resistance of the conductor complies with the provisions of GB/T3956, ensuring the conductivity of the cable; The insulation resistance constant at 90 degrees is not less than 3.67M Ω Km， The volume resistivity shall not be less than 1012 Ω Cm， Ensure the insulation performance of the cable; The insulation of the cable did not break down within 5 minutes under a 3.5KV AC voltage test, further verifying the safety and reliability of the cable.
4、 Add advantages and features
1. Environmental friendliness: The halogen-free low smoke flame-retardant control cable is made of halogen-free low smoke materials, which will not produce toxic gases and a large amount of smoke during combustion, and is safe and harmless to the environment and personnel. This feature makes cables more secure in emergency situations such as fires.
2. Flame retardancy: Cables have good flame retardancy, which can effectively prevent the spread of fire and reduce fire losses in the event of a fire. This characteristic makes halogen-free, low smoke, flame-retardant control cables one of the important measures for fire safety in power systems.
3. Durability: The cable is made of high-quality materials and advanced technology, with good durability and stability. Even after long-term use in harsh environmental conditions, it can maintain stable performance and quality.
4. Easy installation: The bending radius of the cable is moderate, and installation can be completed without special tools and equipment. Meanwhile, the cable is lightweight and compact, making it easy to transport and install.
In summary, halogen-free low smoke flame-retardant control cables have become an ideal choice in the field of power transmission due to their advantages of safety, environmental protection, flame retardancy, durability, and easy installation. In the future development, halogen-free low smoke flame-retardant control cables will continue to leverage their advantages to provide reliable guarantees for the stability and safety of the power system.