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High-Quality LSZH Leather Line Cable Materials from China Suppliers and Factory - Fire Resistant and Eco-Friendly Solutions
PRODUCT FEATURES
1. Weather resistance
Low smoke zero halogen sheath cable material is appropriate for both indoor and outdoor applications since it can tolerate the effects of daily weather conditions, such as sunlight, rain, and humidity.
2. High fire resistance
Materials with low smoke zero halogen sheaths typically possess a high fire resistance, which helps shield the insulation within cables during a fire and stop it from spreading.
3. Low smoke combustion
In the event of a fire, low smoke zero halogen sheath cable material produces less smoke, which enhances crew evacuation safety.
4. Low toxicity
Low smoke zero halogen sheath cable material typically creates less harmful gas even when burning, lowering the possibility of toxicity in a fire.
5. Protection of the environment
This sheath material's zero halogen composition lessens its negative effects on the atmosphere and the 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 | |
| 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 main advantages of low smoke zero halogen (LSZH) sheath cable materials?
LSZH materials offer excellent weather resistance, high fire resistance, low smoke combustion, low toxicity, and are environmentally friendly due to their zero halogen composition.
Can LSZH cable materials be used in outdoor environments?
Yes, they are highly suitable for both indoor and outdoor applications as they can tolerate daily weather conditions such as sunlight, rain, and humidity.
What types of cables typically use this sheath material?
The material is widely used in optical cables, coaxial cables, network cables, elevator cables, and various other cable applications.
How does this material improve safety during a fire?
It possesses high fire resistance to shield internal insulation and stop the spread of fire. Additionally, it produces significantly less smoke and toxic gas, which greatly enhances evacuation safety.
Is the LSZH cable material environmentally friendly?
Yes, the zero halogen composition of this sheath material minimizes its negative effects on the atmosphere and the ozone layer, making it an eco-friendly choice.
What is the required tensile strength for these materials?
According to the testing standards, the tensile strength requirement for WDZ-Y-J70, WDZ-Y-H70, and WDZ-Y-H90 models is ≥10.0 MPa.