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Low Smoke Halogen-free Flame-retardant Insulation And Sheath Granules For Wires And Cables

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Low Smoke Halogen-Free Flame-Retardant Cable Insulation Granules from China Suppliers and Factory

Low smoke and halogen-free cable materials are advanced products crafted from a blend of EVA, POE, PE, and other polyolefin resin substrates. These materials utilize halogen-free and low smoke flame retardants, such as aluminum hydroxide and magnesium hydroxide, to ensure safety and compliance with environmental standards. When burned, these materials do not release halogenated gases, resulting in significantly low smoke concentration. As a leading manufacturer in China, our factory specializes in producing these high-quality cable materials, making them ideal for various applications in the cable industry. Choose our products for reliability and performance, backed by trusted suppliers in the sector

Product Detail

Product Description

Low smoke and halogen-free materials for cables are a special material widely used in cable manufacturing, which occupies an important position in the cable industry with its unique environmental and safety performance.

1、Definition

Low smoke and halogen-free cable materials refer to materials that do not produce toxic smoke and corrosive gases during cable combustion. This material is commonly used for the insulation and sheath layers of cables to improve their environmental performance and safety.

2、Characteristics

Environmental friendliness

Low smoke and halogen-free materials do not produce toxic smoke and corrosive gases such as hydrogen halides during combustion, making them harmless to the environment and human health.

Flame retardancy

This material usually contains flame retardants such as magnesium oxide or magnesium hydroxide, which enable the cable to self extinguish or slow down the combustion rate during combustion, improving the fire resistance of the cable.

Corrosion resistance

The insulation layer of low smoke halogen-free materials has good corrosion resistance and can maintain good electrical and mechanical properties in various chemical environments.

Physical properties

This material typically has high tensile strength, good weather resistance, flexibility, and elasticity, which can meet the needs of cables in different usage environments.

3、Application

Low smoke halogen-free cable materials are widely used in various fields due to their excellent environmental and safety performance, including but not limited to:

High rise residential buildings: There is a high demand for cables and they need to meet certain fire resistance requirements. Low smoke and halogen-free cables can prevent the spread of flames without producing toxic gases, providing more time for personnel evacuation and rescue.

Important public places: such as large and medium-sized shopping malls, airports, stations, etc., have high personnel density and difficulty in escaping. The application of low smoke and halogen-free cables can help improve the overall fire safety level.

Underground facilities: such as tunnels and subways have poor ventilation conditions, making it difficult to extinguish fires once they occur. Low smoke halogen-free cables have a high fire resistance rating and can maintain normal power supply for a period of time during a fire.

Important facilities: such as nuclear power plants and computer control centers have extremely high requirements for fire prevention and safety control. Low smoke and halogen-free cables can effectively prevent the spread of flames while not having a negative impact on equipment and the environment.

In industrial fields: such as petrochemicals and power industry, cables need to be able to be used in harsh environments such as high temperature, explosion-proof, and waterproof. The structural design of low smoke and halogen-free cables makes them widely used in these fields.

4、Advantages and disadvantages

advantage:

Environmental protection: Burning does not produce toxic gases, and the residue is harmless.

Safety: It has excellent flame retardant properties and can slow down the spread of fire.

Corrosion resistance: able to maintain good performance in various chemical environments.

Excellent physical properties: such as high tensile strength and good weather resistance.

Disadvantages:

High cost: The manufacturing process and material cost of low smoke halogen-free cables are relatively high, and the price is higher compared to ordinary cables.

Parameters

Common Specification Table

ITEM	UNIT	Technical Requirements
ITEM	UNIT	RW-WDZ-YH70	RW-WDZ-YH90	RW-WDZ-YH-105	RW-WDZ-YH-125	RW-WDZ-YH-150
Tensile Strength	Mpa	≥10	≥10	≥10	≥10	≥10
Elongation at Break	％	≥150	≥150	≥150	≥150	≥150
Thermal aging temperature	℃	100±2℃	120±2℃	135±2℃	158±2℃	180±2℃
Thermal aging time	H	168h	168h	168h	168h	168h
Elongation at break retention rate	％	±25	±25	±25	±25	±25
Test temperature	℃	-25	-25	-25	-25	-25
Test results	Failure data	≤15/30	≤15/30	≤15/30	≤15/30	≤15/30
Dielectric Strength	MV/m	≥18	≥18	≥18	≥18	≥18
20℃ Volume Resistivity	Ω.m	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108
Temperature	℃	200±3	200±3	200±3	200±3	200±3
Processing time	min	15	15	15	15	15
Mechanical stress	MPa	0.2	0.2	0.2	0.2	0.2
Elongation under load	％	≤100	≤100	≤100	≤100	≤100
Maximum permanent deformation after cooling	％	≤25	≤25	≤25	≤25	≤25
Test temperature	℃	70±2	70±2	70±2	70±2	70±2
Testing time	h	168	168	168	168	168
Maximum rate of change of tensile strength	％	±30	±30	±30	±30	±30
Oxygen Index	％	≥28	≥28	≥28	≥28	≥28
Smoke Density-flame	-	≤350	≤350	≤350	≤350	≤350
Combustion releases acid in the gas	％	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5
HCI and HBr contents	％	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
HF contents	-	≥4.3	≥4.3	≥4.3	≥4.3	≥4.3
PH contents	Us/mm	≤10	≤10	≤10	≤10	≤10

Support customizing other specifications

Detailed image

Frequently Asked Questions

What are low smoke and halogen-free cable materials?

They are special materials used for the insulation and sheath layers of cables that do not produce toxic smoke and corrosive gases (such as hydrogen halides) during combustion, thereby improving safety and environmental friendliness.

What are the primary characteristics of these cable materials?

Their primary characteristics include environmental friendliness (no toxic gas release), flame retardancy (contains flame retardants like magnesium oxide/hydroxide), corrosion resistance, and excellent physical properties like high tensile strength and weather resistance.

Where are low smoke halogen-free cables commonly applied?

They are widely used in high-rise residential buildings, important public places (shopping malls, airports, stations), underground facilities (tunnels, subways), critical installations (nuclear power plants, computer control centers), and industrial fields (petrochemicals and power industry).

What are the advantages of using these cable materials?

The main advantages are environmental protection, high safety with excellent flame retardant properties, strong corrosion resistance in chemical environments, and superb physical properties like high tensile strength.

Are there any disadvantages to low smoke halogen-free cables?

Yes, the main disadvantage is the high cost. The manufacturing process and material costs are relatively high, making them more expensive than ordinary cables.

Can I request customized specifications for these cables?

Yes, we support customizing other specifications beyond the standard RW-WDZ technical requirements shown in the common specification table.