What are the different models of mineral-insulated cables, and what are their respective applications?
Category: Blog
Release time: 2023-06-28
Overview: Mineral-insulated cables are all made from polymeric materials, and there are many different cable specifications and models, such as BBTRZ, YTTW, BTLY, BTTZ, and more. So, what are the distinct characteristics and applications of these various cable types?
What are the different models of mineral-insulated cables, and what are their respective applications?
Mineral-insulated cables are all made from polymeric materials, and there are many different cable specifications and models, such as BBTRZ, YTTW, BTLY, BTTZ, and more. So, what are the distinct characteristics and applications of these various cable types?
Flexible mineral BBTRZ insulated cable
Flexible mineral-insulated fire-resistant BBTRZ cables are primarily composed of mineral compounds and feature high-temperature resistance, fire protection, and explosion prevention. They are inherently non‑combustible and can operate at 1000V under flame temperatures as high as 950°C. The conductor structure is also quite flexible, making it easy to bend and suitable for a variety of installation methods—typically, electrical personnel can install them using standard cable laying procedures.
Flexible fire-resistant YTTW cable
YTTW cables are composed of copper conductors and multiple layers of protective sheathing, making them a new type of fire‑resistant cable. The cable is also equipped with an external fire‑resistance layer, resulting in exceptionally high fire performance. In addition to their excellent flexibility and high voltage resistance, these cables are moisture‑resistant and easy to install, making them widely used in both industrial infrastructure and civil construction projects.
Flexible Mineral-Insulated BTLY Cable
Mineral-insulated cables are composed of metallic copper and magnesium oxide powder. Since the melting point of copper is 1083°C and the melting point of magnesium chloride is 2800°C, the cable itself will neither ignite nor support combustion. It can operate at temperatures as high as 1000°C and boasts characteristics such as fire resistance, water resistance, corrosion resistance, long service life, and high-temperature tolerance. Therefore, in terms of both fire resistance and water resistance, these cables fully meet the relevant standards and are suitable for use in Class A buildings, Class I buildings, and ultra-high‑rise structures alike.
Flexible mineral BTTRZ insulation cable
BTTRZ cable, fully known as Flexible Copper-Sheathed Inorganic Mineral Insulated Fire-Resistant Cable, boasts advantages such as corrosion resistance, excellent shielding performance, low smoke and low halogen emissions during combustion, and superior bending performance. It is widely used for powering equipment and lighting systems in buildings, as well as in environments requiring exceptional cleanliness and hygiene, and in critical locations prone to fire and explosion hazards.
Rigid Mineral Insulated BTTZ Cable
BTTZ is a rigid mineral cable made entirely of inorganic materials, meaning it is free from insulation aging. It boasts high temperature resistance, fire retardancy, explosion protection, and non‑flammability, while also offering large current-carrying capacity, a small outer diameter, high mechanical strength, and an extended service life. Its normal operating temperature can reach 250°C, and it exhibits excellent fire‑resistance performance, making it widely used in nuclear power plants, metallurgy facilities, airports, high‑rise buildings, and other similar environments.
Keywords: What are the different models of mineral-insulated cables, and what are their respective applications?
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