The spiral steel tube armored vibration sensing cable is a sensing cable specially designed for micro-vibration fiber sensing systems. It is protected by a double-layer stainless steel armored sheath and features high tensile strength, crush resistance, anti-twisting, anti-rodent-bite, anti-knife-cut, waterproof and moisture-proof performance, as well as softness and toughness, making it suitable for all kinds of harsh environments. The cable has a well-defined layered structure; the optical fiber is protected inside a steel tube in a free state and is highly sensitive to external micro-vibrations, making it an ideal detection unit for distributed vibration sensing. It is widely used for intrusion and sabotage protection in airports, power plants, chemical plants, military sites, borders, prisons, oil pipelines, communication cables, railways, highways, residential communities, villas, schools, mining areas, small/medium/large factories, enterprises and public institutions, and various key areas.
Product features
Stainless steel flexible tube + stainless steel braided mesh double-layer armor gives the optical fiber the strongest protection.
Excellent mechanical properties such as high tensile strength, high crush resistance, anti-rodent-bite, anti-knife-cut and anti-bending.
The unique stainless steel flexible tube design makes the fiber more sensitive to vibration.
Uses flame-retardant and eco-friendly materials, meeting fire protection grade requirements such as those for firefighting.
The cable is flexible with good toughness, convenient for installation, deployment and maintenance.
Recommended applications
Distributed micro-vibration sensing
Installation methods
Can be installed aerially, shallow-buried, in ducts, or surface-mounted along walls, fences, etc.
Main parameters - Appearance and dimensions
Item
Description
Cable outer diameter
4.00mm±0
Cable color
Black or customer-customized
Standard length
1000m or customer-customized
Main parameters - Materials
Item
Description
Fiber
SiO₂ glass optical fiber
Tensile strength member
Imported DuPont Kevlar from the USA
Stainless steel flexible tube
SUS304
Stainless steel braided mesh
SUS304 (0.07mm, 80 strands)
Outer sheath
Eco-friendly flame-retardant LSZH sheath or customer-customized
Fiber type
G652D single-mode graded-index optical fiber
Fiber count
2 fibers
Tight-buffered fiber color
Blue, Yellow
Main parameters - Optical characteristics
Item
Description
Attenuation
≤0.4dB/km(1310nm)；≤0.3dB/km(1550nm)
Effective group index
- (the original text did not provide a specific value; shown as-is)
Main parameters - Mechanical characteristics
Item
Description
Permissible tensile force
Long-term 400N; short-term 600N
Permissible crushing force
Short-term 4000N/10cm; long-term 3000N/10cm
Bending radius
Static 40mm; dynamic 80mm
Main parameters - Environmental characteristics and others
粤公网安备44011802001235号