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BBTRZ (flexible fire prevention)
This product is used for AC 50Hz rated voltage 0.6/1kV and below fire emergency system transmission and distribution lines.
Related Products
0.6/1kV and below flexible mineral insulated fireproof cables
1.lmplementation of standards
The mechanical and physical properties and electrical properties of the cable are implemented in the relevant enterprise standards,British standards Bs 6387:2013 and BS 8491:2008.
2. Scope of use
This product is used for AC 50Hz rated voltage 0.6/1kV and below fire emergency system transmission and distribution lines.
3.cable structure
1.conductor
2.Inorganic mineral insulation
3.Crosslinked polyethylene insulation
4.Halogen-free filler strip
5.Mineral fire shield
6.High flame retardant strip
7.Low smoke halogen-free fame retardant sheath
4.Use characteristics
Rated operating voltage: 450/750V 0.6/1kV
The ambient temperature should not be lower than 0 °C when the cable is laid
The minimum allowable bending radius of the cable should not be less than 15 times the outer diameter of the cable
5.cable type, name, laying occasion
| Model | Voltage class | Specifications | Core | Name | Laying occasion |
| BBTRQ | 450/750V 0.6/1kV |
1.5-630mm2 | 1-5 | Copper core flexible mineral insulated fireproof cable (light type) | Can be laid indoors, outdoors, in cable wells, cable tunnels, bridges and cable ducts |
| BBTRZ (TBTRZY) |
450/750V 0.6/1kV |
1.5-630mm2 | 1-5 | Copper core flexible mineral insulated fireproof cable | Can be directly buried, laid indoors, outdoors, in cable wells, cable tunnels and cable pipes |
6.cable structure parameters, electrical parameters
|
Nominal cross section |
Conductor diameter |
Composite insulation thickness |
Approximate outer diameter of cable |
Approximate cable weight kg/km |
20℃ conductor DC resistance value Ω/km |
Long-term allowable current carrying capacity (A) in air |
| 1×2.5 | 1.78 | 0.9 | 11.3 | 11.3 | 7.41 | 43 |
| 1×4 | 2.25 | 0.9 | 11.7 | 11.7 | 4.61 | 56 |
| 1×6 | 2.76 | 0.9 | 12.2 | 12.2 | 3.08 | 70 |
| 1×10 | 4.1 | 0.9 | 14.2 | 14.2 | 1.83 | 94 |
| 1×16 | 5.0 | 0.9 | 15.1 | 15.1 | 1.15 | 125 |
| 1×25 | 6.0 | 1.1 | 16.7 | 16.7 | 0.727 | 160 |
| 1×35 | 7.0 | 1.1 | 17.7 | 17.7 | 0.524 | 200 |
| 1×50 | 8.2 | 1.2 | 19.3 | 19.3 | 0.387 | 240 |
| 1×70 | 9.9 | 1.3 | 21.2 | 21.2 | 0.268 | 305 |
| 1×95 | 11.6 | 1.3 | 23.1 | 23.1 | 0.19. | 375 |
| 1×120 | 13.0 | 1.4 | 24.7 | 24.7 | 0.153 | 430 |
| 1×150 | 14.5 | 1.6 | 26.8 | 26.8 | 0.124 | 495 |
| 1×185 | 16.2 | 1.8 | 29.1 | 29.1 | 0.0991 | 570 |
| 1×240 | 18.4 | 1.9 | 32.5 | 32.5 | 0.0754 | 685 |
| 1×300 | 20.7 | 2.0 | 35.2 | 35.2 | 0.0601 | 795 |
| 1×400 | 23.5 | 2.2 | 38.6 | 38.6 | 0.0470 | 930 |
Three-phase AC frequency: 50Hz
Conductor operating temperature: 90°C
Air humidity: 40℃
|
Nominal cross section |
Conductor diameter |
Composite insulation thickness |
Approximate outer diameter of cable |
Approximate cable weight kg/km |
20℃ conductor DC resistance Ω/km |
Long-term allowable curren t carrying capacity (A) in air |
| 2×2.5 | 1.78 | 0.9 | 11.3 | 221.1 | 7.41 | 43 |
| 2×4 | 2.25 | 0.9 | 11.7 | 245.8 | 4.61 | 56 |
| 2×6 | 2.76 | 0.9 | 12.2 | 277.9 | 3.08 | 70 |
| 2×10 | 4.1 | 0.9 | 14.2 | 350.6 | 1.83 | 94 |
| 2×16 | 5.0 | 0.9 | 15.1 | 427.7 | 1.15 | 125 |
| 2×25 | 6.0 | 1.1 | 16.7 | 559.8 | 0.727 | 160 |
| 2×35 | 7.0 | 1.1 | 17.7 | 674.6 | 0.524 | 200 |
| 2×50 | 8.2 | 1.2 | 19.3 | 835.8 | 0.387 | 240 |
| 2×70 | 9.9 | 1.3 | 21.2 | 1079.9 | 0.268 | 305 |
| 2×95 | 11.6 | 1.3 | 23.1 | 1375.9 | 0.19. | 375 |
| 2×120 | 13.0 | 1.4 | 24.7 | 1646.8 | 0.153 | 430 |
| 2×150 | 14.5 | 1.6 | 26.8 | 1973.4 | 0.124 | 495 |
| 2×185 | 16.2 | 1.8 | 29.1 | 2390.8 | 0.0991 | 570 |
| 2×240 | 18.4 | 1.9 | 32.5 | 3098.5 | 0.0754 | 685 |
| 2×300 | 20.7 | 2.0 | 35.2 | 9758.3 | 0.0601 | 795 |
| 2×400 | 23.5 | 2.2 | 38.6 | 4659.3 | 0.0470 | 930 |
Our advantage
High transmission efficiency
Cables can efficiently transmit electrical energy and signals, providing stable power supply and communication transmission.
Strong anti-interference ability
The insulation layer of the cable can effectively isolate external electromagnetic interference and provide reliable signal transmission and power distribution.
Safe and reliable
The cables are professionally designed and manufactured, have good heat resistance, pressure resistance, and weather resistance, and can work safely and reliably under various environmental conditions.
Cost effective
Compared with other power transmission methods, such as aerial power transmission, cables have the advantages of small footprint and low line loss, saving resources and costs.
Flexible and diverse
Cables can be customized according to different needs, including the selection of conductor materials, insulation layer materials, number of cores, cross-sectional size and other parameters, and are suitable for different scenarios and applications.
Long life
High-quality cables are properly designed and manufactured to have a long service life, reducing maintenance and replacement costs.
Energy saving
Cables do not need to burn fuel when transmitting electrical energy, do not produce waste gas and environmental pollution, and meet the requirements of sustainable development.
High transmission efficiency
Cables can efficiently transmit electrical energy and signals, providing stable power supply and communication transmission.
Strong anti-interference ability
The insulation layer of the cable can effectively isolate external electromagnetic interference and provide reliable signal transmission and power distribution.
Safe and reliable
The cables are professionally designed and manufactured, have good heat resistance, pressure resistance, and weather resistance, and can work safely and reliably under various environmental conditions.
Cost effective
Compared with other power transmission methods, such as aerial power transmission, cables have the advantages of small footprint and low line loss, saving resources and costs.
Flexible and diverse
Cables can be customized according to different needs, including the selection of conductor materials, insulation layer materials, number of cores, cross-sectional size and other parameters, and are suitable for different scenarios and applications.
Long life
High-quality cables are properly designed and manufactured to have a long service life, reducing maintenance and replacement costs.
Energy saving
Cables do not need to burn fuel when transmitting electrical energy, do not produce waste gas and environmental pollution, and meet the requirements of sustainable development.
Understanding Requirements
Providing Custom Solutions
Providing Samples and Technical Support
Ordering and Production
Logistics and After-Sales Service
Looking forward to hearing from you!
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