Fire Resistant Mineral Insulated Cable (BTTZ/RTTZ) — Professional Cable by HUADA
Critical fire safety mineral insulated cables — available in rigid (BTTZ: solid copper + MgO + seamless copper sheath) and flexible (RTTZ: stranded copper + mica tape + corrugated copper sheath) configurations. Maintains circuit integrity at 950-1000°C for 90+ minutes — the ultimate cable for life safety systems where power must continue during a fire.
Technical Specifications
BTTZ: Voltage 750V | Solid Copper + MgO + Seamless Copper Sheath | Continuous <250°C | Fire: 950°C | RTTZ: Voltage 0.6/1kV | Stranded Copper + Mica + Corrugated Copper | Continuous 90-150°C | Fire: 1000°C / 90min | Explosion-proof & Waterproof
Key Features & Benefits
- Fire Survival 950-1000°C: Maintains circuit integrity for 90+ minutes in direct fire — keeps emergency systems running when lives depend on it
- Explosion-Proof Construction: Seamless copper sheath and compressed mineral insulation prevent flame and gas propagation
- Zero Smoke, Zero Halogen: Inorganic MgO/mica insulation produces no smoke, no toxic gases, no halogen — maximum life safety
- Extremely Long Service Life: Inorganic materials do not age or degrade — the cable will outlast the building it serves
Typical Applications
Fire protection systems (emergency lighting, smoke extraction, alarms) | High-rise buildings & skyscrapers | Subways, airports & tunnels | Petrochemical plants & offshore platforms | Nuclear power safety circuits | Data centers & hospitals
Why Choose HUADA CABLE?
Founded in 1988, HUADA CABLE has been dedicated to cable manufacturing for 37+ years. Our advanced workshops feature automated production lines and comprehensive testing equipment monitoring quality throughout every production stage. We adhere to the core belief of “Dedicating Ourselves to Cable Production and Pursuing Excellence in Quality.”
- Factory Direct: No intermediaries — competitive pricing straight from our production line
- 37 Years of Expertise: Proven track record since 1988 with continuous R&D investment
- Global Certifications: ISO9001, CE, CCC, RoHS — compliant with international standards
- Quality Assurance: 100% factory testing — conductor resistance, voltage withstand, insulation integrity
- Worldwide Export: Products exported to 30+ countries with professional export documentation and logistics support
- Technical Support: Dedicated engineering team provides pre-sales consultation and after-sales service
Contact us today for a customized quotation, technical datasheet, or sample request. Bulk orders and OEM/ODM inquiries are welcome.
