Low-smoke halogen-free cables are used in many key projects, such as fire fighting, monitoring, alarm and so on. Usually people call them environmental protection cables. In fact, environmental protection cables do not mean low-smoke halogen-free cables. Here is a detailed analysis of the differences between environmental protection cables and low-smoke halogen-free cables.
Using green environmental protection insulating layer, sheath and special oxygen insulating layer material, not only has good electrical and physical mechanical properties, but also ensures that the product does not contain halogen, solves the "secondary pollution" formed during its combustion, and avoids the carcinogenic "dioxin" substances produced during the combustion of traditional PVC wires.
2、高阻燃性：2. High flame retardancy:
Environmentally friendly cables fully guarantee the high building requirements for fire protection. Cables are not easy to burn in fire, and can prevent the spread of flame and the expansion of disasters after combustion.
3、低毒素：3. Low toxin:
Insulation and sheath do not contain heavy metals harmful to human body such as lead and cadmium, which will not pollute soil and water sources when cable is used and discarded. After rigorous toxicity tests, the mice were safe under the prescribed experimental conditions.
4、不产生腐蚀气体：4. No corrosive gases are produced.
The new type of special coating material without pollution to the environment will not produce HCL and other gases during production, use and combustion, and will emit very little acid gas, which will cause little damage to personnel, equipment and instruments, thus showing more environmental protection features.
5、防水、防紫外线：5. Waterproof and ultraviolet protection:
Green environmental protection material with special molecular structure ensures ultra-low water absorption. Special ultraviolet absorbent makes the product have good anti-ultraviolet function. It guarantees the safety of this kind of product and prolongs its service life. First launched the name of "environmental cable" is a company in Japan. Its product standard is FN (Ecomaterial) ecological cable standard. In the western countries, Britain and Britain also formulated advanced environmental cable standard requirements, which gradually spread to the world.
6、高透光率：6. High transmittance:
The smoke generated by cable combustion is very thin, which is conducive to evacuation and fire fighting. The transmittance of the product is more than 40%, which is far higher than the standard of less than 20% for traditional flame retardant cable.