BTTZ Rigid Mineral Insulated Cable (MI Cable)

The BTTZ Rigid Mineral Insulated Cable offers unparalleled fire resistance, high current carrying capacity, and mechanical durability, making it the ideal choice for high-risk applications, explosion-proof systems, and emergency power systems. Its long service life and safety features make it a reliable and effective solution for demanding environments.

  • Bttz Rigid Mineral Insulated Cable Mi Cable

BTTZ Rigid Mineral Insulated Cable (MI Cable)


Key Specifications

  • Electrical Rating 500V (light load) / 750V (heavy load)
  • Conductor Material Copper
  • Insulation Material Magnesium Oxide (MgO)
  • Sheath Material Copper
  • Temperature Range Continuous: Up to 250°C; Short-term: Up to 1000°C
  • Minimum Bending Radius ≥3× cable diameter (single-core), ≥6× cable diameter (multi-core)
  • Fire Resistance Complies with IEC 331, BS6387, and GB/T 19216 standards
  • Short Circuit Rating Up to 1000V, capable of short-circuit protection
  • Weight Lighter by 30% compared to standard cables of similar rating


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The BTTZ Cable is a cutting-edge electrical cable featuring a copper conductor, seamless copper sheath, and magnesium oxide (MgO) insulation. Often referred to as a heavy-duty MI cable, this innovative solution is engineered for applications demanding exceptional high-temperature performance and fire resistance. Its unique construction provides high current carrying capacity, a compact diameter, and remarkably high mechanical strength. The BTTZ cable is capable of continuous operation at and can even maintain functionality for 30 minutes at , making it the ideal choice for environments requiring extreme durability and fire safety.

Highly regarded for its fireproof, explosion-proof, non-flammable, and exceptionally durable characteristics, the BTTZ cable eliminates the need for a separate grounding wire, offering a comprehensive solution for installations in fire safety circuits and emergency power systems.


Key Features of BTTZ Mineral Insulated Cable

  • Fire Resistance: Constructed entirely from inorganic materials (copper and magnesium oxide), the BTTZ cable is inherently fire-resistant. It will not burn or propagate flames, even under direct fire exposure. The cable remains functional in a fire for up to 3 hours at and up to 30 minutes at .

  • High Current Carrying Capacity: BTTZ cables boast a high current carrying capacity due to their ability to operate continuously at temperatures up to , a significantly higher threshold than standard cables. The use of magnesium oxide as insulation facilitates superior current transmission compared to conventional plastic-insulated cables.

  • Explosion-Proof: The seamless copper sheath and highly compressed insulation effectively prevent the passage of flammable oils, gases, and flames, making the BTTZ cable highly suitable for explosion-proof installations.

  • Overload Protection: Unlike traditional cables, the BTTZ cable is robust against damage from overloads or short circuits. It continues to operate as long as the temperature does not reach the melting point of copper. Its inherent resistance to overcurrent ensures it will not ignite or cause electrical faults during overload conditions.

  • High Temperature Adaptability: The BTTZ cable is engineered to operate in high-temperature environments, sustaining continuous operation up to and capable of functioning at for short durations, thereby withstanding extreme conditions.

  • Waterproof: Thanks to its seamless copper sheath and compact structure, the BTTZ cable is inherently waterproof. It remains fully functional even when submerged, making it ideal for wet or submerged environments.

  • Durable and Flexible: This cable offers exceptional resistance to mechanical damage and, after full annealing, becomes highly flexible. This characteristic makes it perfect for installation in challenging or difficult-to-reach areas. The BTTZ cable can endure bending, crushing, and twisting without compromising its electrical performance.

  • Long Service Life: Composed entirely of inorganic materials, the BTTZ cable is exceptionally durable and boasts an extended service life with minimal maintenance requirements. It is designed to perform reliably in installations for over 100 years without degradation.

  • Environmental Safety: The BTTZ cable is an environmentally friendly product, free from harmful substances or toxic gases. Even when exposed to temperatures exceeding , it will not release smoke, toxic fumes, or halogen gases, aligning with green product standards.


Applications

The BTTZ mineral insulated cable is an optimal choice for installations demanding superior fire resistance, high-temperature tolerance, and robust mechanical strength. Its resilient properties make it suitable for a wide range of critical applications, including:

  • High-Rise Buildings: General lighting, emergency lighting, fire alarm systems, fire electrical circuits, and emergency power circuits.
  • Oil Platforms: Emergency lighting, general lighting, and hazardous area circuits.
  • Airport Terminals: Fire alarm systems, emergency lighting, and general electrical circuits.
  • Ships and Naval Vessels: Power transmission lines, fire detection systems, emergency lighting, and smoke ventilation systems.
  • Chemical Industry: General lighting, emergency circuits, and explosive area circuits.
  • Subway Tunnels: Lighting, emergency power, fire monitoring systems, and ventilation systems.
  • Steel Manufacturing: High-temperature power and control lines, emergency power, and non-interruptible power circuits.
  • Power Plants: Power distribution, fire alarm systems, emergency lighting, and fire suppression circuits.
  • Aerospace: Lighting, emergency power, high-temperature circuits, and explosive zone circuits.
  • Shopping Centers: Lighting, emergency lighting, emergency broadcast systems, and elevator circuits.
  • Libraries and Museums: Fire alarm systems, emergency lighting, and data center control circuits.
  • Nuclear Power Plants: Control circuits, emergency power, fire detection systems, and high-temperature power lines.
  • Parking Lots: Lighting, emergency lighting, fire alarm systems, and ventilation systems.
  • Historical Sites: Lighting, emergency lighting, fire alarm systems, and fire electrical circuits.

Fire-Resistant Performance

The BTTZ cable is renowned for its outstanding fire resistance. Due to the inorganic nature of its materials, it does not ignite and is capable of maintaining operational integrity under extreme fire conditions. This ensures continuous operation for at least 3 hours during a fire, providing essential time for rescue operations and firefighting efforts.


Conclusion

The BTTZ Rigid Mineral Insulated Cable offers unparalleled fire resistance, high current carrying capacity, and mechanical durability, making it the ideal choice for high-risk applications, explosion-proof systems, and emergency power systems. Its long service life and inherent safety features establish it as a reliable and effective solution for demanding environments.


Contact Us for a Quote

If you are interested in purchasing the BTTZ Rigid Mineral Insulated Cable or require further technical information, please click here to request a quote. Our dedicated team is prepared to provide you with professional service and customized solutions.

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