What material is LSZH?
What material is LSZH?
Low-Smoke Zero-Halogen (LSZH or LSOH) is a type of plastic used in the wire and cable industry for cable jacketing. LSOH cable jacketing is custom compounded to produce minimal smoke and low toxicity when exposed to fire.
Is LSZH better than PVC?
A PVC cable (made of polyvinyl chloride) has a jacket that gives off heavy black smoke, hydrochloric acid, and other toxic gases when it burns. Low Smoke Zero Halogen (LSZH) cable has a flame-resistant jacket that doesn’t emit toxic fumes even if it burns.
Is PVC cable halogen-free?
PVC or polyvinyl chloride is not a halogen-free material because it contains chlorine.
Is PVC a LSZH?
Judging from the physical appearance, the difference between LSZH and PVC cable is very distinct. A PVC cable feels soft and it is smooth, whereas an LSZH cable feels rough since they contain the flame retardant compound and it is stiffer. LSZH cables are more aesthetically appealing than PVC cables.
Is polyurethane a LSZH?
A low smoke zero halogen polyurethane jacket is the characteristic of the material behaviour. The cables are flame retardant and self-extinguishing in the event of a fire, showing low smoke emissions and are 100% halogen free.
Where is LSZH used?
They are therefore often specified indoors, especially in public areas, and in other hazardous environments and poorly ventilated areas. This includes cars, aircraft, railway carriages and ships. LSZH sheathed cables are commonly used across tunnels and underground rail networks.
Does LSZH need cable?
Because the purpose of LSZH cables is generally to minimise risk from the after-effects of an electrical fire like gas and smoke inhalation, they are generally used in large public spaces where there is a risk of fire.
What is the purpose of halogen free cable?
Halogen free or zero halogen cabling is used in many areas of the cable and wiring industry, including aircraft, rail and construction. Used to protect wiring, it is proven to limit the amount of toxic gas emitted when it comes into contact with heat.
What is the advantage of halogen free cable?
Advantages of halogen-free cables In the case of halogen-free cables no toxic or corrosive gases are released in a fire, which could be a threat to humans or buildings. In contrast to PVC cables, a dangerous elimination of halogen-containing combustion gases can be ruled out.