In public environments such as subways, hospitals, airports, and shopping malls, the greatest hazard in a fire is often not the flame itself, but toxic smoke and corrosive gases released from burning cable insulation.
Our LSZH fire resistant cable is designed to solve this critical safety issue. The insulation and outer jacket are manufactured using halogen-free, low-smoke materials. During combustion, the cable does not release hydrogen chloride (HCl) or other corrosive toxic gases. Smoke density is significantly reduced, and light transmittance is improved, allowing clear visibility for evacuation and rescue operations. This greatly reduces harm to the respiratory system and improves survival conditions in emergency situations.
Reliable Fire Resistance Performance
In addition to environmental safety, the cable provides full fire-resistant functionality. Multiple layers of synthetic mica tape are applied within the structure. Under high temperatures, the mica tape forms a dense ceramic-like insulating barrier, maintaining conductor integrity and preventing short circuits.
The product complies with IEC 60331 fire resistance standards and is designed to maintain circuit continuity during fire conditions. This ensures continuous operation of critical systems such as fire pumps, emergency lighting, and smoke extraction systems.
For signal integrity, the cable retains a dual shielding structure: individual aluminum foil shielding for each pair and an overall tinned copper braid shield. This ensures stable and accurate signal transmission even under severe electromagnetic and emergency conditions.
Our LSZH cable production system is based on mature manufacturing experience and controlled process technology. All products comply with CE and RoHS environmental standards and meet international low-smoke, halogen-free requirements.
The product range includes WDZ-NH-YJY, WDZ-NH-KVV, and WDZ-NH-DJYPVP, covering both power and control signal applications. Standard specifications are available from stock, and each production batch undergoes full inspection including electrical testing, fire performance testing, and material verification.
For export markets, we provide complete documentation including fire test reports, environmental compliance reports, and shipping/customs documentation.
Key Specifications
|
Parameter |
Specification |
|
Common Models |
WDZ-NH-YJY, WDZ-NH-KVV, WDZ-NH-DJYPVP |
|
Conductor |
High-Purity Oxygen-Free Copper |
|
Jacket Material |
LSZH (Low Smoke Zero Halogen) Polyolefin |
|
Fire Resistance Standard |
IEC 60331, GB/T 19216 |
|
Environmental Performance |
Halogen-free, low smoke emission, non-toxic, non-corrosive gases |
Frequently Asked Questions
Hot Tags: lszh fire resistant cable, China lszh fire resistant cable manufacturers, suppliers, factory
