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China LSZH Leather Line Cable Material - High-Quality Suppliers & Factory for Fire-Resistant Cables
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. Environmental Protection
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 |
Requirements WDZ-Y-H70 |
Requirements 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 (FAQ)
1. What are the main features of low smoke zero halogen (LSZH) sheath cable materials?
They feature excellent weather resistance, high fire resistance, low smoke combustion, low toxicity, and are highly environmentally friendly.
2. Can LSZH cables be used for outdoor applications?
Yes, they are appropriate for both indoor and outdoor applications since they can tolerate daily weather conditions such as sunlight, rain, and humidity.
3. How does this cable material perform in the event of a fire?
It possesses high fire resistance that shields the insulation and stops fire from spreading. It also produces less smoke and less harmful toxic gas, significantly enhancing evacuation safety.
4. Is the LSZH sheath material environmentally friendly?
Yes, its zero halogen composition lessens negative effects on the atmosphere and the ozone layer, making it an eco-friendly choice.
5. What is the common scope of use for these cable materials?
They are widely used for cable and optical cables, coaxial cables, network cables, elevator cables, and more.
6. What is the tensile strength requirement for WDZ-Y-J70?
The tensile strength requirement for WDZ-Y-J70 materials is ≥10.0 MPa, with an elongation at break requirement of ≥160%.