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The difference between flame retardant and low smoke halogen-free, do you understand?
Release time:
12 Jan,2024
Flame retardant cable is in the specified test conditions, the sample is burned, after the removal of the test fire source, the spread of the flame only within a limited range, residual flame or residual burning in a limited time can be self-extinguishing cable.
Its fundamental characteristics are: in the case of fire may be burned out and can not run, but can prevent the spread of fire. In layman's terms, in case of a fire, the cable can limit the combustion to a local range, without spreading, keeping other equipment and avoiding greater losses.
As the name implies: low smoke, which reduces the production of harmful objects during combustion, does not produce smoke when burning; halogen is a toxic gas for the human body, halogen-free is no toxic gas release, usually for the cable in case of fire. Low smoke halogen-free power cable can also be called environmental protection cable.
Low smoke halogen-free wire has strong fire safety, aging resistance, long life and good safety factor. Special flame retardant wire has a unique coating on the copper core to improve conductivity and higher load. Low smoke halogen-free raw materials are selected and unique flame retardant ingredients are added, with high flame retardant and low smoke content.
More news
Application of synthetic mica tape in fire-resistant cable
The application field of fire-resistant cable is gradually expanding, from the original offshore oil platform to aviation, aerospace, navigation, subway, tunnel, commercial building, hospital, dance hall, metallurgy, chemical industry and power plant, etc., which require high fire resistance rating. In recent years, with the maturity of the manufacturing technology of fire-resistant synthetic mica tape, the amount of fire-resistant cables manufactured with it is increasing. As we all know, the refractory mica tape is divided into two categories: *(950-1000 ℃) and B (750-800 ℃).
Refractory mica tape-Refractory insulation
High temperature resistance: synthetic mica belt fluorine gold mica belt, does not contain crystal water, melting point 1375 ℃, safety margin, high temperature resistance is the best, phlogopite releases crystal water above 800 ℃, high temperature resistance is the second, muscovite releases crystal water at 600 ℃, high temperature resistance is poor.
Calculation method of used quantity of polyethylene heat shrinkable winding tape
Heat shrinkable tape (open sleeve) is used to prevent corrosion at the welding place of two steel pipes. What is important is to use a set of heat shrinkable tape for one joint joint. The specifications are divided according to the pipe diameter and the price is sold according to one set. Therefore, a set of heat shrinkable tape will contain all the materials required for this weld joint corrosion protection: main tape; Epoxy primer; Fixing sheet; Adhesive tape.
How much do you know about wire and cable wrapping?
1. protect the insulation or inner sheath layer from damage to the armor when the cable is armored, and play the role of buffer and liner. 2. in the process of cable use, due to different materials on the cable insulation or inner sheath layer from heat insulation, or anti-corrosion, anti-aging and other different effects.
Flame retardant cable is characterized by delaying the spread of flame along the cable so that the fire does not expand. Whether it is a single cable or a bundle of laying conditions, the cable is known to burn when the spread of the flame can be controlled within a certain range, so you can avoid the fire caused by the major disasters, thereby improving the fire level of the cable line.
What is halogen-free flame retardant belt?
Halogen-free flame retardant products with flame retardant level up to UL94-V0 standards, does not contain fluorine, chlorine, bromine, iodine halogen. Low smoke when burning, more environmentally friendly. The product has good self-adhesion, completely self-melting in a short time, no layering, and good sealing. The self-adhesive tape has good ductility, insulation and excellent physical properties.