Extra Heavy-Duty Cable Ladder
Extra Heavy-Duty Cable Ladder for industrial cable routing, power distribution, and heavy-duty tray installations.
LSZH CABLES
A trusted factory-direct supplier for all your Low Smoke Halogen Free (LSZH) fire retardant cable needs
Benefits of LSZH fire retardant cables
CHINNE LSZH is the best cable choice for enhanced fire safety in public places like hospitals, schools, and offices. They produce less smoke and no toxic halogen gases when burned, enhancing visibility and reducing the risk of toxic inhalation, facilitating the evacuation of people in the event of a fire.
Typical applications of LSZH CABLES
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LSZH cables for public buildings
Mandatory in many public buildings, LSZH cables comply with stringent local, European (EN 50575, CPR), and international (IEC 60332) fire safety standards, ensuring minimal smoke and zero toxic halogens during a fire. They protect both people and critical equipment while meeting mandatory regulations for schools, hospitals, and high-risk public infrastructure.
LSZH cables for high rise buildings
Mandatory in many public buildings, LSZH cables meet strict local, European (EN 50575 CPR Euroclass) and international (IEC 60332) fire standards for high-rises, including French NF C 15-100. Their fire-retardant properties, low smoke emission and halogen-free composition enhance evacuation safety while protecting critical building systems in high-rise fire emergencies.
LSZH cables for hospitals, schools, and similar
Mandatory in many public buildings, LSZH cables comply with European CPR (EN 50575 Euroclass) and IEC 60332 standards. Their fire-retardant properties, low smoke emission and zero halogen toxicity ensure safer evacuations while protecting sensitive equipment and vulnerable occupants in healthcare and education facilities.
LSZH cables for Data Centres
LSZH cables are almost compulsory in worldwide Data Centre infrasctructure due to their zero downtime tolerance during a possible fire. Meeting the stringent CPR (EN 50575 Euroclass) and IEC 60332 standards, they have fire-retardant properties, low smoke emission and zero halogen toxicity. This prevents catastrophic damage to equipment and guarantees the continuity of infrastructure operations while ensuring the safety of personnel during critical fire incidents.
LSZH cables for Industrial facilities
In industrial environments where fire safety is critical, LSZH cables meet stringent IEC 60332 and EN 50575 standards. Their fire-retardant, low-smoke and halogen-free properties minimize production downtime while protecting both personnel and sensitive industrial equipment from toxic hazards during a possible fire event.
LSZH cables for agricultural establishments
In agricultural environments with flammable materials, LSZH fire safety cables comply with IEC 60332 and EN 50575 standards. Their fire-retardant, low-smoke and halogen-free properties protect both livestock and people, and equipment, while minimizing fire risks in barns, storage facilities and processing areas.
LSZH cables for construction
In construction environments, LSZH fire retardant cables meet IEC 60332 and EN 50575 safety standards. Their low-smoke zero halogen properties prevent toxic hazards, protecting workers while minimizing fire risks in temporary installations and building sites.
Public buildings
Mandatory in many public buildings, LSZH cables comply with stringent local, European (EN 50575, CPR), and international (IEC 60332) fire safety standards, ensuring minimal smoke and zero toxic halogens during a fire. They protect both people and critical equipment while meeting mandatory regulations for schools, hospitals, and high-risk public infrastructure.
High rise buildings
Mandatory in many public buildings, LSZH cables meet strict local, European (EN 50575 CPR Euroclass) and international (IEC 60332) fire standards for high-rises, including French NF C 15-100. Their fire-retardant properties, low smoke emission and halogen-free composition enhance evacuation safety while protecting critical building systems in high-rise fire emergencies.
Hospitals, schools, and similar
Mandatory in many public buildings, LSZH cables comply with European CPR (EN 50575 Euroclass) and IEC 60332 standards. Their fire-retardant properties, low smoke emission and zero halogen toxicity ensure safer evacuations while protecting sensitive equipment and vulnerable occupants in healthcare and education facilities.
Data Centres
LSZH cables are almost compulsory in worldwide Data Centre infrasctructure due to their zero downtime tolerance during a possible fire. Meeting the stringent CPR (EN 50575 Euroclass) and IEC 60332 standards, they have fire-retardant properties, low smoke emission and zero halogen toxicity. This prevents catastrophic damage to equipment and guarantees the continuity of infrastructure operations while ensuring the safety of personnel during critical fire incidents.
Industrial facilities
In industrial environments where fire safety is critical, LSZH cables meet stringent IEC 60332 and EN 50575 standards. Their fire-retardant, low-smoke and halogen-free properties minimize production downtime while protecting both personnel and sensitive industrial equipment from toxic hazards during a possible fire event.
Agricultural establishments
In agricultural environments with flammable materials, LSZH fire safety cables comply with IEC 60332 and EN 50575 standards. Their fire-retardant, low-smoke and halogen-free properties protect both livestock and people, and equipment, while minimizing fire risks in barns, storage facilities and processing areas.
Construction
In construction environments, LSZH fire retardant cables meet IEC 60332 and EN 50575 safety standards. Their low-smoke zero halogen properties prevent toxic hazards, protecting workers while minimizing fire risks in temporary installations and building sites.
A complete solution from chinne
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Cable&cable support system manufacturer Chinne is one of Chinese leading cable&cable support system manufacturers which excels in providing best-in-class service.
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Best-in-class-service A friendly and eficcient sales team and our excellent logistics will satisfy your cable requirements.
Filter products by:
Inward Flanged Side Rail Cable Ladder System
Inward Flanged Side Rail Cable Ladder System for industrial cable routing, power distribution, and heavy-duty tray installations.
China Standard Cable Ladder Tray
China Standard Cable Ladder Tray for industrial cable routing, power distribution, and heavy-duty tray installations.
Perforated Cable Ladder
Perforated Cable Ladder for industrial cable routing, power distribution, and heavy-duty tray installations.
Strut Channel 41x21mm
Strut Channel 41x21mm engineered for reliable power and signal transmission.
Cable Trunking
Cable Trunking engineered for reliable power and signal transmission.
Wire Mesh Cable Tray
Wire mesh cable tray with open grid structure for rapid installation, flexible cable management, and optimal heat dissipation. Ideal for industrial and commercial power and data cabling.
Cable Tray
Perforated cable trays for heavy and medium-duty cable management, available in hot-dip galvanized, fire-retardant powder coated, and standard powder coated finishes for diverse environments.
VV-F H05VV-F
VV-F H05VV-F engineered for reliable power and signal transmission.
RZ1MZ1-K
Enhanced Mechanical Protection / Enhanced Fire Safety | CPR Cca B2ca LSZH / For hazardous areas with explosive gas atmospheres (ATEX)
RZ1 AL
Aluminium cable / Enhanced Fire Safety LSZH / CPR / Lighter Weight and Potentially Lower Cost (compared to Copper)
N2XH flex
Enhanced Fire Safety | CPR Cca B2ca LSZH / Enhanced flexibility and ease of Installation / Versatile applications for fixed LSZH power installations
Why choose our LSZH CABLES
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Resists crushing & impact damage
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Reinforced Mechanical Protection
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Built for Versatility and Durability in Fixed Armoured Applications
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Quality You Can Trust – From an Industry Leader
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Dedicated Technical Support Whenever You Need It
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Excellence in Service, Mastery in Logistics.
LSZH CABLES FAQs
Click a question to reveal the answer.
In the international market, LSZH cables are typically categorized by harmonized codes (like the European <HAR> system) or specific material designations (e.g., H07Z-K). The Chinese system utilizes the GB (Guobiao) standard, which relies on Pinyin initials to denote smoke and halogen properties.
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Chinese System (GB/T): Common models use the prefix WDZ (Wuyan Dizhou - Low Smoke Low Halogen) or WDZN (Fire Resistant version). Examples include WDZ-YJY (XLPE insulation, LSZH sheath) and WDZ-BYJ (LSZH insulated wire).
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International System: Common designations include H05Z-K / H07Z-R (Harmonized single core), NHXH (Fire resistant LSZH), and SOOW (equivalent oil-resistant versions). In the North American market, they may be labeled as LS (Limited Smoke) according to UL standards.
Compatibility is based on standardized testing protocols rather than the name itself. Regardless of whether a cable is called WDZ-YJY or H07Z-R, it must pass the same critical global tests:
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IEC 61034: Measurement of smoke density (ensuring visibility).
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IEC 60754-1/2: Determination of halogen acid gas content and acidity (ensuring non-toxicity).
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IEC 60332: Tests on flame propagation. As long as the cable meets these IEC (International Electrotechnical Commission) benchmarks, it is functionally compliant for global infrastructure projects.
LSZH cables are constructed using thermoplastic or thermoset compounds that do not contain halogens (such as Fluorine, Chlorine, Bromine, or Iodine). In standard PVC cables, these halogens release toxic, corrosive gases like Hydrogen Chloride (HCl) when burned. LSZH materials instead use mineral fillers like Aluminum Trihydrate (ATH), which release water vapor when heated to suppress smoke and heat.
These terms are essentially interchangeable in the international market:
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LSZH: Low Smoke Zero Halogen (most common).
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LSOH / OHLS: Low Smoke Zero Halogen / Zero Halogen Low Smoke.
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LSHF / NHFR: Low Smoke Halogen Free / Non-Halogen Flame Retardant. All these designations point to the same safety goal: reducing toxic fumes and maximizing visibility during fire emergencies.
LSZH cables are mandated by building codes in the international market for areas with high concentrations of people or sensitive equipment, including:
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Public Infrastructure: Underground subways, tunnels, and airports.
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Commercial Buildings: Data centers, high-rise offices, and hospitals.
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Maritime: Offshore oil rigs and naval vessels (where evacuation is difficult).
The LSZH compound primarily affects the mechanical and fire-safety properties of the outer sheath. The electrical performance (voltage rating, capacitance, and conductivity) is determined by the internal conductor and primary insulation (like XLPE). Therefore, an LSZH power cable performs identically to a PVC version electrically but offers vastly superior safety in fire conditions.
While LSZH is superior for safety, it can be slightly more rigid than PVC.
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Pros: Better UV resistance and higher environmental safety.
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Cons: LSZH jackets can be prone to "stress cracking" if installed incorrectly or exposed to specific harsh chemicals. It is vital to adhere to the minimum bending radius specified by the manufacturer during installation.
To maintain the integrity of LSZH systems, high-quality support structures are required:
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Cable Trays: Perforated trays are ideal for heat dissipation.
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Wire Mesh Cable Trays: Excellent for light-duty data and control cables, allowing for easy routing and high visibility.
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Cable Ladders: Best for heavy-duty armored LSZH power cables that require maximum mechanical support over long spans.
Standard LSZH compounds are designed for indoor use. However, for the international market, we offer UV-stabilized LSZH or Steel Wire Armored (SWA) versions. For direct burial, a cable must have an additional water-resistant barrier or specialized jacket to prevent moisture from degrading the halogen-free compound.
When laying LSZH cables in Steel or PVC Trunking, installers must be careful. Because LSZH is less "forgiving" than PVC, exceeding the bending radius (typically 8x to 12x the Outer Diameter) can cause micro-fractures in the jacket. Using large-radius elbows and bends within the trunking system is recommended.
This test measures the pH and conductivity of the gases produced during combustion. In data centers, this is critical because acidic gases from burning PVC can corrode expensive circuit boards and server components even if the fire itself is small. LSZH cables pass this test, ensuring your hardware is protected from corrosive damage.
Not necessarily. LSZH (Flame Retardant) prevents the spread of fire and smoke. Fire Resistant (Circuit Integrity) cables (tested to IEC 60331) are designed to keep the power on during a fire. However, most high-quality fire-resistant cables are also LSZH to ensure total safety.
According to international standards like NEC or IEC 60364, you should generally not exceed a 40-50% fill ratio in cable trays or trunking. This ensures adequate airflow to prevent heat buildup, which is especially important for LSZH cables to maintain their physical properties over a 25-year service life.
Historically, LSZH was significantly more expensive. However, due to increased production for the global market and stricter safety regulations, the price gap has narrowed. When considering the Life Cycle Cost (LCC) and the reduction in potential fire damage to equipment, LSZH is a more cost-effective choice for modern infrastructure.
Genuine LSZH cables will have the relevant standards (e.g., BS EN 50267 or IEC 61034) printed directly on the jacket. Professional buyers often request a Burn Test Report or a Certificate of Compliance (CoC) to verify that the halogen content is indeed below the 0.5% threshold required for a "Zero Halogen" rating.
Yes, although in Chinese the standard outerh sheath for LSZH cables colour is green, in other countries this cable can be supplied with a black outer sheath.
Halogen free cables with reduced smoke production save lifes in the event of a fire:
• Provide a smoke-free escape route
• Protect the structure of the building
• Limit the smoke damages to equipment
• The smoke is less hot and non-corrosive
• Facilitate the work of firefighters in the building
