LSZH Cable

LSZH is short for Low Smoke Zero Halogen, referring to high-safety wiring built with halogen-free insulation and outer sheath materials, widely adopted in public infrastructure and industrial projects.
Traditional PVC cables contain halogen compounds. When catching fire, they produce thick choking smoke alongside highly corrosive, poisonous halogen fumes. Dense smoke blocks sight and hinders evacuation, while toxic gas inhalation can be fatal. Moreover, halogen vapors erode electrical contacts and precision electronics, causing permanent equipment damage.
By contrast, LSZH cables are engineered to solve these safety risks. During combustion, they emit only minimal smoke to keep escape routes visible and release zero toxic halogen gases, protecting both human health and expensive electrical devices. Most LSZH cables also feature flame-retardant properties to slow flame propagation and stop fires spreading along wiring.
These safety-focused cables are essential for confined or crowded locations such as subway tunnels, hospitals, data centers and underground power facilities. We provide complete LSZH control, signal and power cables with customizable structures. Our technical specialists can recommend matched cable models to satisfy your fire safety and installation requirements.

LSZH (Low Smoke Halogen Free) are electric cables for public places such as: hospitals, schools, museums, airports, bus terminals, shopping malls, offices, laboratories, etc. In the event of fire, these cables do not spread fire nor emit toxic or corrosives gases, preventing any possible harm to people or electronic equipment.

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

LSZH cables stand out as a far greener wiring option than traditional PVC alternatives. PVC cable materials contain halogen substances that release highly toxic, corrosive chemical fumes when burned. These hazardous emissions pollute air, contaminate soil and water, and cause long-term damage to surrounding ecosystems after fire incidents.
Made from halogen-free polymer compounds, LSZH wiring produces only clean, low-toxicity combustion byproducts with minimal smoke. No corrosive halogen pollutants leak into the environment during ignition or disposal. Their flame-retardant traits also curb fire spread, cutting the scale of environmental damage caused by large electrical fires.
From manufacturing to end-of-life recycling, LSZH materials generate less harmful waste and simplify safe disposal. Widely specified for eco-conscious public buildings and green industrial projects, our full LSZH cable range balances fire safety with sustainable environmental performance, and our team can assist you in picking eco-compliant wiring for your projects.

The core gap between LSZH and PVC cables lies in their sheath compounds and fire performance. PVC materials contain halogen elements. Upon ignition, they discharge thick, blinding smoke and highly corrosive toxic halogen fumes. The heavy smoke blocks evacuation paths, while corrosive vapors harm human health and permanently ruin electrical devices and building structures. PVC cables are low-cost and fit simple open industrial workshops with low fire risks yet fail safety standards for crowded enclosed spaces.
LSZH cables adopt halogen-free raw materials. They emit only thin smoke and zero corrosive toxic gas when burning, keeping escape routes visible, safeguarding building frames and precision equipment, and easing firefighting work. Most LSZH variants also carry flame-retardant properties to slow fire spread and produce less polluting waste for easier recycling. They remain the top pick for subways, hospitals, data centers and all high-safety public and industrial projects, and our team can match suitable wiring based on your site safety standards.