Low Smoke Zero Halogen Cable

2025-12-25

What is a Low Smoke Halogen-Free (LSZH) Cable?

A low smoke halogen-free (LSZH) cable is a cable with minimal insulation and sheathing material that does not produce halogen gases (such as chlorine or bromine) when exposed to fire, thus reducing the emission of toxic and corrosive substances.
What does LSZH stand for?

LSZH stands for Low Smoke Halogen-Free, referring to a cable that produces very little smoke and no halogen compounds when burning, thereby improving safety in fire situations.
In what applications are low smoke halogen-free cables suitable?

LSZH cables are suitable for locations with extremely high fire safety requirements, such as public buildings, transportation systems, data centers, hospitals, tunnels, and industrial facilities, to protect personnel and equipment from toxic fumes and corrosion in fires.
What is the difference between LSZH and LSOH cables?

LSZH and LSOH are often used interchangeably—both refer to cables that produce low smoke and no halogens when burning. The main differences lie in the naming conventions used by different regions or manufacturers, but their core safety characteristics are the same.
What are the uses of LSZH cables?

Compared to standard PVC cables, LSZH cables can reduce fire hazards, improve visibility during evacuation, protect human health from toxic gases, and prevent corrosive damage to sensitive electronic equipment.
What is the difference between LSF and LSZH cables?

LSF (Low Smoke Halogen-Free) cables produce less smoke than PVC cables, but may still release halogens or other harmful compounds. LSZH cables, on the other hand, are completely halogen-free and produce very little smoke and toxic gases when heated or burned.
Why are low smoke halogen-free cables crucial for fire safety?

Because low smoke halogen-free cables produce less smoke when burning, resulting in higher visibility and no release of toxic halogens, they help protect the safety of personnel and rescue workers in fire emergencies, especially in confined spaces.
Are low smoke halogen-free cables environmentally friendly?

Yes—low-smoke halogen-free cables contain no halogens and do not release corrosive gases when burned. Therefore, they are more environmentally friendly and easier to dispose of safely compared to traditional halogen-containing cables.
Do low-smoke halogen-free cables meet safety standards?

The materials and products of low-smoke halogen-free cables are tested according to international standards (such as IEC, EN, UL). These standards measure smoke emissions, toxicity, and flame retardancy to ensure reliable fire safety performance.
What are some common applications of low-smoke halogen-free cables?

Common applications include office buildings, shopping malls, airports, railway and subway networks, hospitals, schools, data centers, ships, and other densely populated or enclosed spaces where fire safety and visibility of evacuation are primary considerations.

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