Material de la funda del cable LSZH
- GB/T18380: Class A, B, and C sheath materials
- GB31247: Class B1 and B2 sheath materials
- Flame-retardant polyethylene sheath material, meeting medium and high voltage requirements (compliant with ST8/ST12 standards)
Especificaciones detalladas del producto
Apariencia
Cable sheathing LSZH materials are supplied as uniform cylindrical or lenticular pellets, typically 2-4 mm in diameter, with a smooth surface and consistent color. The material is available in black, gray, or natural (creamy white) colors upon request. The black compound is UV-stabilized for outdoor use, while the natural and gray versions are typically used indoors or for low-voltage cable sheathing.
Parámetros técnicos
| Propiedad | Valor típico | Estándar de prueba |
| Densidad | 1.45 ± 0.03g/cm³ | ISO 1183 |
| Dureza Shore (D) | 48–55 | ISO 868 |
| Resistencia a la tracción | ≥ 12.0MPa | ISO 527 |
| Alargamiento en rotura | ≥ 150% | ISO 527 |
| Índice de oxígeno (LOI) | ≥ 30% | ISO 4589 |
| Envejecimiento Térmico (136°C, 168h) | ≥ 80% Retention | CEI 60811 |
| Resistividad de volumen | ≥ 1×10¹³Ω·cm | CEI 60093 |
| Densidad del humo (Transmittance) | ≥ 60% | CEI 61034 |
| Acid Gas Emission | < 0.5% | CEI 60754-2 |
Característica del producto
- Bajo nivel de humo y libre de halógenos: Does not emit toxic halogen gases during combustion, complying with IEC 60754-1/2 and EN 50267 standards.
- Excellent Flame Retardancy: Achieves IEC 60332-3 Class C or higher, ensuring flame spread control for power and communication cables.
- Strong Mechanical Properties: Excellent tensile strength and elongation at break provide durable protection for cable cores when used as sheathing.
- Weatherproof and UV-resistant: Ideal for outdoor and solar cable sheathing, offering long-term resistance to heat, sunlight, and humidity.
- Procesabilidad: This material is compatible with many standard extrusion equipment, ensuring a smooth extrusion process, stable performance, high production efficiency, and minimal waste.
- Environmentally Friendly and Safe: Contains no heavy metals such as lead and cadmium; compliant with RoHS and REACH regulations.
Solicitud
ZMS cable jacketing LSZH materials are widely used in the manufacture of various low-voltage, medium-voltage, communications, and control cables requiring enhanced safety and environmental performance, incluido:
- Power Cables: 0.6/1kV and medium-voltage cables requiring a flame-retardant outer jacket.
- Communication Cables: Sun-resistant and waterproof jacketing for data, signal, and fiber optic cables for indoor and outdoor installations.
- Railway & Subway Cables: Suitable for tunnels, stations, and rolling stock, meeting stringent smoke and toxicity standards.
- Solar & Renewable Energy Cables: UV-resistant and weather-resistant LSZH jacketing for photovoltaic systems.
- Building Wiring & Control Systems: Environmentally friendly and highly secure for use in densely populated areas such as hospitals, airports, and commercial buildings.
Manufacturing Process of Cable LSZH Sheath Material
At ZMS, every batch of LSZH low-smoke, zero-halogen cable sheathing compound utilizes a precisely controlled, environmentally friendly production process, ensuring consistent quality, exceptional safety features, and excellent extruded cable processing performance.
1. Raw Material Selection
We use high-purity polyolefin-based resins, inorganic flame retardants (primarily magnesium hydroxide and aluminum hydroxide), and special additives to enhance flexibility, weather resistance, and processing stability.
All materials are RoHS and REACH compliant, ensuring the production process is non-toxic, halogen-free, and free of heavy metals.
2. Efficient Compounding
Using twin-screw extrusion compounding technology, the base resin and additives are melted, mixed, and uniformly dispersed.
The resulting compound exhibits excellent flame retardancy, a smooth surface, and uniform particle size, making it ideal for extrusion of cable sheathing materials across various voltage levels.
3. Cooling and Pelleting
The molten material is extruded, water-cooled, and then cut into uniform pellets, typically 2-4 mm in diameter. This process ensures consistent density, easy feeding, and consistent extrusion performance during customer cable production.
4. Quality Inspection
Each production batch undergoes rigorous testing, incluido:
Mechanical strength and elongation testing (CEI 60811)
Flammability testing (CEI 60332-1/3)
Smoke density and halogen acid gas emission testing (CEI 61034, CEI 60754)
Aging and weathering testing to ensure long-term stability
Only qualified products are packaged and shipped.
5. Custom Formulations
ZMS Material offers customized LSZH jacketing compound solutions tailored to customer applications—for example:
UV-resistant black grades for outdoor photovoltaic cables
Highly flexible grades for rail vehicles and control cables
Highly thermally stable grades for industrial environments
6. Packaging and Delivery
Each batch of LSZH material is packaged in 25 kg moisture-proof PE liner bags and shipped on pallets for safe transportation. We also offer customized packaging options, such as jumbo bags or vacuum-sealed packaging, to meet various export requirements. All materials are accompanied by technical data sheets and MSDS for customers’ reference.
Servicios de materiales ZMS & Logística
Soporte técnico profesional
Los experimentados ingenieros de materiales de ZMS brindan orientación sobre la selección de compuestos., diseño de aislamiento de cables, y formulaciones personalizadas para varios grados. Nos aseguramos de que cada lote cumpla con sus requisitos eléctricos., mecánico, y requisitos de seguridad contra incendios.
Seguro de calidad & Servicio postventa
Cada lote de pellets de material se somete a un riguroso control de calidad., incluyendo densidad, rigidez dieléctrica, y pruebas de retardo de llama. Nuestro equipo de posventa está disponible para brindarle consultas., solución de problemas, y servicios de reemplazo si es necesario.
Soluciones de embalaje personalizadas
Los compuestos de ZMS Material se suministran en forma de gránulos o gránulos y normalmente se envasan en bolsas de polietileno a prueba de humedad., tambores de papel kraft, o bidones de plástico. También podemos proporcionar empaques personalizados con gráficos personalizados para proteger la integridad del material durante el transporte y almacenamiento..
Envío flexible & Entrega
Trabajamos con socios logísticos confiables para ofrecer servicios de envío global, incluyendo contenedor, paleta, o envío a granel. El personal dedicado y los procedimientos de envío meticulosamente planificados evitan la humedad., calor, o daños mecánicos, asegurar que el compuesto llegue en óptimas condiciones.