| Customization: | Available |
|---|---|
| Type: | Insulated |
| Conductor Type: | Solid and Stranded |
|
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BBTZ cables are rigid, mineral-insulated fire-resistant cables designed for critical circuits requiring exceptional fire resistance, mechanical strength, and long-term reliability. Compliant with GB/T 13033 and international standards, they ensure uninterrupted power supply in extreme conditions, making them ideal for high-risk environments such as high-rise buildings, industrial plants, and public infrastructure.
Standard Compliance: GB/T 13033, IEC 60331, BS 6387 (Category A)
Rated Voltage: 0.6/1kV, 1.8/3kV
Conductor: Solid or Stranded Copper
Insulation: Magnesium Oxide (Compacted Mineral)
Outer Sheath: Seamless Copper Tube
Temperature Range:
Operational: -40°C to +250°C
Fire Survival: +950°C for 180 minutes (BS 6387 Certified)
Fire Performance: Non-flammable, zero halogen, low smoke (IEC 60754).
Model and Specification Tables
| Core Section (mm²) | 1 Core | 2 Cores | 3 Cores | 4 Cores | 5 Cores |
| 1.5 | |||||
| 2.5 | 1 x 2.5 | 2 x 2.5 | 3 x 2.5 | 4 x 2.5 | 5 x 2.5 |
| 4 | 1 x 4 | 2 x 4 | 3 x 4 | 4 x 4 | 5 x 4 |
| 6 | 1 x 6 | 2 x 6 | 3 x 6 | 4 x 6 | 5 x 6 |
| 10 | 1 x 10 | 2 x 10 | 3 x 10 | 4 x 10 | 5 x 10 |
| 16 | 1 x 16 | 2 x 16 | 3 x 16 | 4 x 16 | 5 x 16 |
| 25 | 1x 25 | 1x 26 | 1x 27 | 1x 28 | 1x 29 |
| 35 | 1 x 35 | 2 x 35 | 3 x 35 | 4 x 35 | 5 x 35 |
| 50 | 1 x 50 | 2 x 50 | 3 x 50 | 4 x 50 | 5 x 50 |
| 70 | 1 x 70 | 2 x 70 | 3 x 70 | 4 x 70 | 5 x 70 |
| 95 | 1 x 95 | 2 x 95 | 3 x 95 | 4 x 95 | 5 x 95 |
| 120 | 1 x 120 | 2 x 120 | 3 x 120 | 4 x 120 | 5 x 120 |
| 150 | 1 x 150 | 2 x 150 | 3 x 150 | 4 x 150 | 5 x 150 |
| 185 | 1 x 185 | 2 x 185 | 3 x 185 | 4 x 185 | 5 x 185 |
| 240 | 1 x 240 | ||||
| 300 | 1 x 300 | ||||
| 400 | 1 x 400 | ||||
| 500 | 1x 500 | ||||
| 630 | 1 x 630 |
| Model | Core Configuration | Conductor Size | Voltage Rating | Key Application |
|---|---|---|---|---|
| BBTZ-1x1.5 | Single Core | 1.5 mm² | 0.6/1kV | Emergency lighting, alarms |
| BBTZ-3x2.5 | 3 Cores | 2.5 mm² | 0.6/1kV | Fire pumps, elevators, HVAC systems |
| BBTZ-4x6 | 4 Cores | 6.0 mm² | 1.8/3kV | High-voltage power distribution |
| BBTZ-5x10 | 5 Cores | 10.0 mm² | 1.8/3kV | Industrial machinery, substations |
Uncompromised Fire Resistance: Withstands 950°C for 3 hours (BS 6387:2013), ensuring circuit integrity during fires.
Robust Construction: Seamless copper sheath provides superior mechanical and corrosion resistance.
Environmental Safety: Zero halogen emission, minimal smoke (IEC 61034).
Long Lifespan: Resists aging, moisture, and chemical corrosion for decades
Emergency systems (hospitals, data centers, airports)
Firefighting equipment (alarms, pumps, smoke control)
Hazardous environments (oil refineries, chemical plants)
Public infrastructure (tunnels, subways, power stations)
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