What is BTWTZ cable?

2025-08-28 Leave a message

BTWTZ cable is a fire-resistant, non-flammable, smokeless, and fire-resistant cable. It consists of a single-strand copper rod conductor, seamlessly welded with longitudinally wrapped copper tape, and insulated with inorganic mineral insulation. Its voltage range is typically 0.6/1kV or 0.4/0.5kV, and it can withstand a 1000V voltage at a flame temperature of 950°C for three hours without breaking down. It is suitable for use in high-rise buildings, subways, nuclear power plants, public spaces, and other locations where fire protection is crucial. It also features high-temperature resistance, lightweight, corrosion resistance, flexibility, flame retardancy, safety, and affordability.


BTWTZ cable is a flexible copper-sheathed, inorganic mineral-insulated, fire-resistant cable. It is also known as YTTW, BTTW, BTTRZ, BTTE, RTTZ, WTTZ, WTTQ, RTTYZ, RTTVZ, BTWTYZ, WD-YTTW, WDZ-YTTW, WDZB-RTTYZ, WDZ-RTTZ, RTTW, WDZAN-YTTW, RTTWE, RTGW, YTGW, RTGWE, WD-YTGWY, HIGWE, YTTWE, YTGWE, NTG-FA, BTWGT, WDZ-BTWGTY, RWTZ, RWTVZ, RWGVZ, BTTYJ, RWTYZ, and WDZNA-BTTYJ.


BTWTZ cable overcomes the drawbacks of limited production lengths of mineral-insulated cables, avoiding the problem of intermediate joints during installation and laying. It offers advantages such as a moisture-resistant insulation layer and easy installation and laying. It is also highly flexible and impact-resistant, while its relatively low construction cost allows it to effectively pass fire protection inspections.


Due to its non-flammable, smokeless, non-toxic, and fire-resistant properties, BTWTZ cables can be used in a variety of locations and equipment requiring fire protection, including high-rise buildings, subways, nuclear power plants, petrochemical plants, and other important industrial sites, as well as crowded public spaces such as train stations, airports, shopping malls, and stadiums.


BTWTZ cables have the following characteristics:


Non-flammability: The cable itself does not burn, offering extremely high fire resistance.


Harmless: Burning does not produce toxic gases, harmless to the environment and personnel.


Fire Resistance: Power supply can be maintained in the event of a fire, ensuring emergency power supply.


Flexibility: The cable is highly flexible and easy to install and lay.


Impact Resistance: The cable has high impact resistance.


Low Construction Cost: Compared to other fire-resistant cables, the construction cost is lower.


BTWTZ cables are widely used in various applications, including:


Basic industries: nuclear power plants, mining, etc.


Civil construction: power transmission and distribution lines and emergency lines in high-rise buildings, subways, airports, schools, hospitals, and other large public places.