LSZH (Low Smoke Zero Halogen) cable and PVC (Polyvinyl Chloride) cable are two different types of cables that are commonly used in various applications. Here are the key differences between them:
Material Composition: The main difference lies in the material composition of the cable jackets. LSZH cables use a thermoplastic compound that does not contain halogenated materials, such as chlorine and bromine. On the other hand, PVC cables use a type of plastic called polyvinyl chloride, which contains halogens.
Fire Safety: LSZH cables are designed to have low smoke and low toxicity characteristics when exposed to fire. In the event of a fire, LSZH cables emit minimal smoke and do not release toxic gases that may be harmful to people or sensitive equipment. This makes LSZH cables suitable for applications where fire safety is a priority, such as in enclosed spaces or areas with high human occupancy. PVC cables, on the other hand, can emit dense smoke and toxic fumes when exposed to fire, which can pose risks to people and can damage equipment.
Environmental Impact: LSZH cables are considered more environmentally friendly compared to PVC cables. The absence of halogens in LSZH cables means that they produce less toxic smoke and do not release harmful chemicals into the environment when burned. PVC cables, on the other hand, release toxic gases and produce a significant amount of smoke when burned, which can have negative environmental impacts.
Applications: LSZH cables are commonly used in applications where fire safety is critical, such as in public buildings, transportation systems, and data centers. They are also used in areas where the release of toxic gases and smoke can be particularly hazardous, such as in submarines or confined spaces. PVC cables are more commonly used in general-purpose applications where fire safety requirements are not as stringent, such as in residential and commercial buildings.
It's important to note that while LSZH cables offer better fire safety and environmental characteristics, they are generally more expensive than PVC cables.
