What material is often used in the construction of fire-resistant cables?

Low smoke zero halogen (LSZH) is a material frequently used in the construction of fire-resistant cables due to its ability to reduce the emission of toxic and corrosive gases during a fire. LSZH materials do not contain halogens, which can produce harmful fumes when burned, making them a safer alternative in environments where fire safety is paramount.

These cables are designed to limit the amount of smoke generated when exposed to high temperatures, which enhances visibility for evacuating individuals in emergency situations and reduces the risk of smoke inhalation. Additionally, the use of LSZH materials aligns with various safety regulations and standards for building codes, particularly in public and high-occupancy buildings.

In contrast, while aluminum and plastic are commonly used in electrical cables, they do not provide the same level of fire resistance and safety as LSZH. Armored steel is used for physical protection of cables but does not have any fire-resistant properties compared to LSZH materials. Thus, LSZH stands out as the preferred choice when considering fire resistance in cable construction.