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Low Smoke Zero Halogen Cable Material Suppliers in China - High-Performance LSZH Sheath Cable Factory
PRODUCT FEATURES
Weather resistance: Low smoke zero halogen sheath cable material can withstand the effects of daily meteorological conditions, such as sunlight, rain and humidity, so it is suitable for indoor and outdoor applications.
High fire resistance: Low smoke zero halogen sheath 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 sheath cable material produces less smoke in the event of a fire, which helps to improve the safety of personnel evacuation.
Low toxicity: Low smoke zero halogen sheath cable material usually has low toxicity, even when burning, it produces less toxic gas, helping to reduce the risk of toxicity in fire.
Environmental protection: The zero halogen composition makes this sheath material more environmentally friendly and reduces the damage to the atmospheric ozone layer.
SCOPE OF USE
Cable and optical cable, coaxial cable, network cable, elevator cable, 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 | |
| Max rate of change of tensile strength | % | ±25 | ±25 | ±25 | |
| Max 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 temp: 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 temp: 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 | |
| Max rate of change of tensile strength | % | — | ±30 | ±30 | |
| Max 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 does LSZH stand for in cable materials?
LSZH stands for Low Smoke Zero Halogen. It refers to cable sheathing materials that produce very little smoke and zero toxic halogen gases when exposed to fire.
Can LSZH sheath cables be used outdoors?
Yes. LSZH sheath cable materials have excellent weather resistance. They can withstand daily meteorological conditions such as sunlight, rain, and humidity, making them suitable for both indoor and outdoor applications.
Why are LSZH cables safer during a fire?
They offer high fire resistance to prevent fire spread, produce minimal smoke to aid in safe personnel evacuation, and have low toxicity, ensuring less toxic gas is released during combustion.
What are the common applications for this material?
It is widely used for various types of cables, including optical cables, coaxial cables, network cables, and elevator cables.
Is LSZH sheath material environmentally friendly?
Yes, the zero halogen composition makes this sheath material much more environmentally friendly, significantly reducing potential damage to the atmospheric ozone layer.