Product Description:
This product is made of high-purity resin as the base material, with halogen-free flame retardant, cross-linking agent, antioxidant, etc. mixed and extruded into granules. It has excellent performance such as halogen-free, heat-resistant, flame-retardant, low-smoke, and weather-resistant. It has no precipitation pollution, meets the relevant requirements of Rohs, etc., and is easy to extrude and process.
Application Field:
B1 grade wires for various indoor wiring.
Product Parameters：
| Testing items | VALUE | Typicalvalue | UNIT | Method |
| Hardness | 92±3 | 92 | Shore Hardness A | GB/T 2411 |
| Density | ≤1.68 | 1.65 | g/cm3 | GB-T 1033 |
| Number of failures at low temperature embrittlement temperature (-40°C) | ≤15/30 | 0/30 | PCS | GB/T 5470 |
| Tensile strength before irradiation | ≥8 | 8.8 | MPa | GB/T 1040 |
| Elongation at break before irradiation | ≥160 | 168 | % | GB/T 1040 |
| Tensile strength before aging | ≥10 | 12.2 | MPa | GB/T 1040 |
| Elongation at break before aging | ≥125 | 150 | % | GB/T 1040 |
| Thermal elongation 0.2MPa×200℃×15min | ||||
| Elongation under load | ≤100 | 40 | % | GB/T 2951 |
| Permanent deformation | ≤25 | 0 | % | GB/T 2951 |
| Aging performance 135℃×168h | ||||
| Change rate of tensile strength | ≤-30 | -18 | % | GB/T2951.12 |
| Change rate of elongation at break | ≤-30 | -20 | % | GB/T2951.12 |
| Volume Resistivity at 20℃ | ≥1.0×1014 | 2.7×1014 | Ω.cm | GB/T 1410 |
| Dielectric strength | ≥20 | 22 | MV/m | DIN EN 6024 |
| Oxygen index | ≥30 | 36 | % | GB/T 2406 |
| Amount of halogen acid gas | ≤0.5 | 0.1 | mg/g | IEC 60754 |
| PH | ≥4.3 | 5.5 | - | IEC 60754 |
| Conductivity | ≤2.5 | 2 | μs/mm | IEC 60754 |
| Smoke density with flame | ≤100 | 85 | - | GB/T 8323 |
| Peak heat release rate | ≤180 | 150 | kW/m2 | ISO/5660 |
| Total heat release | ≤180 | 105 | MJ/m2 | ISO/5660 |
| Average heat release rate | ≤100 | 74 | kW/m2 | ISO/5660 |
Low smoke halogen-free B1 flame retardant sheath material is a special cable material that produces less smoke when burning, does not contain halogen, and has good flame retardant properties. This material is widely used, especially in places with strict requirements for flame retardant properties, such as high-rise buildings, subways, airports, stations, hospitals, schools and other crowded places, as well as equipment energy information transmission systems.
The performance requirements of B1 flame retardant cables have strict testing requirements for the spread of combustion flames, combustion heat release rate, total heat release value, combustion smoke density, combustion dripping, combustion particles, combustion smoke toxicity and corrosiveness. The research and development and production of this sheath material requires the optimization and innovation of the flame retardant polyolefin material formula design and cable manufacturing process to achieve the mass production of B1 flame retardant non-shielded data cable (network cable) products.
Public facilities: In public places such as airports, subway stations, and hospitals, cables with LSZH-B1 grade materials can reduce the generation of smoke and toxic gases in the event of a fire, thereby providing better conditions for personnel evacuation and rescue work.
Transportation vehicles: In transportation vehicles such as trains, subways, and cars, the use of this material can reduce the risk of fire and protect the safety of passengers.
High-rise buildings: In high-rise buildings, cables with LSZH-B1 grade materials help reduce the spread of smoke during a fire and improve the fire resistance of the building.
Data centers: Data centers have strict requirements on the flame retardant properties of cable materials. LSZH-B1 grade materials can reduce damage during a fire and protect critical data and equipment.
Industrial applications: In industrial fields such as petrochemicals and nuclear power plants, cables with this material can provide additional security.
Oxygen index: Oxygen index is an important indicator to measure the flame retardant performance of materials. LSZH-B1 grade materials usually have a higher oxygen index, which means that they are more difficult to burn under limited oxygen conditions.
Thermal stability: This material can remain stable at high temperatures and is not easy to deform or melt, thus providing better protection in the event of a fire.
Extrusion performance: Good extrusion performance ensures the continuity and uniformity of cable production, which is crucial to the quality and performance of the cable.
Environmental stress cracking resistance: LSZH-B1 grade materials have good environmental stress cracking resistance, which means that they can remain stable under various environmental conditions and are not easy to crack due to stress.
