BBTZ/BBTQ 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.
| 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 | 1 x 25 | 1 x 26 | 1 x 27 | 1 x 28 | 1 x 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 | 1 x 500 | ||||
| 630 | 1 x 630 |