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Low Smoke Zero Halogen Optical Cable Material - Quality Network Cable from China Suppliers and Factory
PRODUCT FEATURES
High fire resistance
Low smoke zero halogen material usually have high fire resistance, which can protect the insulation material inside the cable in a fire and prevent the spread of fire.
Low smoke combustion
Low smoke zero halogen material produce less smoke in the event of a fire, which helps to improve the safety of personnel evacuation.
Low toxicity
Low smoke zero halogen material usually have low toxicity, and even when burned, they produce less toxic gas, helping to reduce the risk of toxicity in a fire.
Electrical insulation
Low smoke zero halogen material have good electrical insulation properties, suitable for optical cables and network cables, to protect telecommunications equipment from external interference.
Wide range of applications
Low smoke zero halogen material are suitable for a variety of telecommunications, communications and data transmission applications, including indoor and outdoor optical and cable cables.
SCOPE OF USE
Optical cable, telephone lines, home network cables, high-speed data transmission cables, other industrial and commercial, etc.
TEST ITEMS AND STANDARDS
Properties of halogen-free low smoke flame retardant thermoplastic polyolefin insulating materials and sheathing materials.
| No. | Inspection Item | Unit | Requirements | ||
|---|---|---|---|---|---|
| WDZ-Y-J70 | WDZ-Y-H70 | WDZ-Y-H90 | |||
| 1 | Tensile strength | MPa | ≥10.0 | ≥10.0 | ≥10.0 |
| 2 | Elongation at break | % | ≥160 | ≥160 | ≥160 |
| 3 | Air aging chamber | ||||
| Aging temperature | ℃ | 100±2 | 100±2 | 110±2 | |
| Aging time | h | 168 | 168 | 240 | |
| Maximum rate of change of tensile strength | % | ±25 | ±25 | ±25 | |
| Maximum rate of change of elongation at break | % | ±25 | ±25 | ±25 | |
| 4 | Thermal deformation | ||||
| Test temperature | ℃ | 90±2 | 90±2 | 90±2 | |
| Experimental result | % | ≤50 | ≤50 | ≤50 | |
| 5 | 20℃ volume resistivity | Ω·m | ≥1.0×1012 | ≥1.0×1010 | ≥1.0×1010 |
| 6 | Volume resistivity at operating temperature | ||||
| Test temperature | ℃ | 70±1 | — | — | |
| Volume resistivity | Ω·m | ≥2.0×108 | — | — | |
| 7 | Dielectric strength | MV/m | ≥20 | ≥18 | ≥18 |
| 8 | Heat shock test | ||||
| Test temperature | ℃ | 130±3 | 130±3 | 130±3 | |
| Test time | h | 1 | 1 | 1 | |
| Experimental result | — | No cracking | No cracking | No cracking | |
| 9 | Impact embrittlement temperature | ||||
| Test temperature | ℃ | -25 | -25 | -25 | |
| Experimental result | Number | ≤15/30 | ≤15/30 | ≤15/30 | |
| 10 | Ozone resistance test | ||||
| Test temperature | ℃ | — | 25±2 | 25±2 | |
| Experiment time | h | — | 24 | 24 | |
| Ozone concentration | ppm | — | 250~300 | 250~300 | |
| Experimental result | — | — | No cracking | No cracking | |
| 11 | Hot water immersion test | ||||
| Test temperature | ℃ | — | 70±2 | 70±2 | |
| Experiment time | h | — | 168 | 168 | |
| Maximum rate of change of tensile strength | % | — | ±30 | ±30 | |
| Maximum rate of change of elongation at break | % | — | ±35 | ±35 | |
| 12 | Oxygen index | % | ≥28 | ≥30 | ≥30 |
| 13 | Smoke density | ||||
| flameless | — | ≤350 | ≤350 | ≤350 | |
| flaming | — | ≤100 | ≤100 | ≤100 | |
| 14 | Combustion releases gas acidity | ||||
| HCI and HBr content | % | ≤0.5 | ≤0.5 | ≤0.5 | |
| HF content | % | ≤0.1 | ≤0.1 | ≤0.1 | |
| pH value | — | ≥4.3 | ≥4.3 | ≥4.3 | |
| Electric conductivity | μS/mm | ≤10 | ≤10 | ≤10 | |
| 15 | Material smoke toxicity hazards | According to the application requirements of the product, negotiated by the supply and demand parties. | |||
CERTIFICATIONS
FREQUENTLY ASKED QUESTIONS
What are the primary features of low smoke zero halogen (LSZH) materials?
LSZH materials are characterized by high fire resistance, low smoke combustion, low toxicity, and excellent electrical insulation, making them highly safe for various environments.
Where are LSZH materials commonly used?
They have a wide range of applications and are commonly used in optical cables, telephone lines, home network cables, and high-speed data transmission cables for both industrial and commercial use.
How do LSZH cables improve safety during a fire?
In the event of a fire, LSZH materials produce significantly less smoke and toxic gases compared to traditional materials, which greatly improves visibility and safety for personnel evacuation.
What is the tensile strength requirement for these materials?
The minimum tensile strength requirement is ≥10.0 MPa across WDZ-Y-J70, WDZ-Y-H70, and WDZ-Y-H90 standards to ensure durability and reliability.
Are these materials resistant to ozone?
Yes, the materials undergo strict ozone resistance testing at 25°C with concentrations of 250~300 ppm for 24 hours, ensuring no cracking occurs.
What certifications do the products hold?
Our products hold various industry-standard certifications ensuring quality, safety, and performance, which are displayed in our certifications gallery.