Low smoke zero halogen (Low smoke zero Halogen), referred to as LSZH, LSOH, LS0H, LSFH and OHLS, is the material classification of wire sheath in the wire and cable industry.
Low smoke halogen free wire sheath is composed of thermoplastic or thermosetting properties with low smoke emission when heated and no halogen in itself.
Most network wire cladding is made of polyethylene, polyvinyl chloride or thermoplastic polyurethane. Chlorinated plastic releases toxic hydrogen chloride when it catches fire, and hydrochloric acid when it encounters water. Low-smoke halogen-free materials do not release hydrogen halide or other acids when they catch fire.
The low smoke halogen free material reduces the toxic and corrosive gases produced during its combustion. Low smoke and halogen free materials are often used in poorly ventilated environments such as aircraft, train cars or ships. Low smoke and halogen free materials are also commonly used in the railway industry because there are high voltage lines or signal lines that convey the position of the train under the railway. The use of low smoke halogen-free materials also reduces the accumulation of toxic gases when the line is damaged by fire or short circuit.
For example, in the railway industry or shipbuilding industry, where protection of personnel and equipment from toxic and corrosive gases is an important requirement, the use of low-smoke, halogen-free material in the outer layer of the wire and cable may be required.
LSZH CABLE features